1999/2000 (Winter):
1. [ December+January+February ] - Averaged over England & Wales, the
SUNSHINE hours for December=65 (134%), January=63 (124%) and February=97 (133%)
(averages relate to the 1961-90 period); For the winter season as a whole, this
means that this was the SUNNIEST winter (as defined) in the entire record
(which started in 1907). Many places, especially in eastern & central
Scotland, eastern & southern England and the Midlands recorded record
sunshine. For London (Heathrow), there has been a total of some 257hr; There
have been very few occasions in London with sunshine totals above 200hr.
According to Philip Eden (Telegraph), since the record began in 1876, the
events were: 1948/49=206hr; 1951/52=208hr; 1979/80=207hr; 1983/84=229hr;
1987/88=209hr; 1997/98=226hr and of course, 1999/2000=257hr. [ NB: record not
made up from the same station.]
2000 (April & May):
1. A notably WET pair of months. Using the EWP series, April 2000 plus May 2000
was the second wettest such combination (wettest=1782 !). This was not
surprising, as the April (2000) was the WETTEST April in the EWP series
(beating the 1782 figure). The words 'FLOODING' cropped up quite a bit in these
two months - for April, the rainfall was fairly uniformly spread about England,
Wales & NE Scotland, with 200 to 300% of average. In May though, the
excessive rainfall was much more regionalized - over 200% southeast of a line
Whitby/Bournemouth, with some spots in SE lowland England circa 300%. [ see
also 1983 & 1782 ]. Some spectacular THUNDERSTORMS in May - including one
at Bracknell, the home (until late summer 2003) of the UK Meteorological
Office!
2000 (Autumn):
1. For the England & Wales (EWP) series, it was (at the time) the WETTEST
autumn since that series began in 1766. The final total was 503 mm, which is
196 % of the 1961-90 average. SIGNIFICANT FLOODING occurred over England &
Wales, and also more locally over Northern Ireland, south and east Scotland.
For Northern Ireland, it was the WETTEST autumn since at least 1900 and in the
Belfast area, perhaps the wettest autumn since 1814.
>> The Environment Agency (who look after England & Wales
only) suggests that up to the end of November, the flooding was the
worst since 1947 (though note carefully that the meteorology &
hydrology of the '47 floods was different. However, in York, it is thought that
the FLOODS were unprecedented in the past 400 years. (Also worth noting that
historically it was probably wetter about a thousand years ago!)
> September: most areas well above average .. 175 to 200% much of England
and SE Wales, also areas of E. Scotland. Locally Yorkshire, Lincolnshire,
>200%.
> October: the WETTEST October (England & Wales) since 1903 with 188mm,
and the second wettest October in that series. It was also exceptionally
wet in eastern counties of N. Ireland & across some parts of SW Scotland.
> November: 182 mm in the EWP series, the WETTEST November since 1940 &
the fifth wettest November in that series (at the time - see 2009).
2. Manchester (Ringway) airport recorded NO FROST in the three months
September, October and November this year (2000). This was unprecedented in
their record which began in 1942.
2000 (Annual):
1. The WETTEST (calendar) year in the EWP record since 1872, and the
third wettest in that series. Total=1233 mm/135% of 1961-1990 average.
It included the WETTEST September to December period on record, the wettest
Autumn (q.v.), the wettest April (q.v.), the second wettest October, the 6th
wettest November and the second wettest April & May pairing (q.v.). [ see
also 1768, 1852, 1872 & 1960 ]
> Many central southern & southeastern counties (south of London) of
England exceeded 1000mm of RAIN, with upwards of 1300mm in parts of Sussex. The
DRIEST area this year was around the Wash/eastern Fens & east coastal East
Anglia where some places recorded just under 700mm of rain.
2001
2000 (Oct)/2001 (Feb):(5 months):
1. Above average SUNSHINE in the Northern Isles. For Lerwick (Shetland) &
Kirkwall (Orkney), the accumulated values for these months are easily the
highest in the respective records for these autumn/winter months.
2000/2001 (6 & 12 month periods):
1. According to Philip Eden (RMetSoc/Weather Log): " the six-month
period September 2000 to February 2001 was unprecedentedly WET over England
& Wales. At Herstmonceux (East Sussex) 1154mm fell in this period compared
with a mean of 426mm." This represents some 270% of the average, and
indicates how the highly notable wet weather has been concentrated across
southern UK.
2. The 12 months from April 2000 to March 2001 in the EWP series is the WETTEST
such 12 month period in that record (starts 1766) with a total=1355 mm; this is
not far short of 1.5 times the 1961-1990 average. For parts of SE England, the
anomaly is probably well in excess of 200% - and current thinking is that this
may be an event that has not occurred for many centuries!
1999-2001 (24 months to end March):
1. The 24 month period ending March 2001 was the WETTEST in the EWP series.
2001 (February):
1. PROLONGED/HEAVY SNOWFALL affected eastern Scotland & NE England 3rd to
5th. Shetland, Fife, Tayside & Aberdeenshire amongst worst affected. A
train (15 pax & crew) was trapped by SNOWDRIFTS in the north of Scotland
(en-route to Wick), electricity was cut-off to roughly 11000 households after
SNOW/HIGH WINDS brought down power lines, many roads closed and an Inverness to
Edinburgh train was de-railed (nr. Killiekrankie) after it hit a tree brought
down by GALES. Many schools closed.
> A depression moved slowly south-eastwards across the British Isles during
the 26th & 27th & SNOW fell heavily across Scotland & N. Ireland,
DRIFTING in the strong wind. Once again, reports indicated that transport was
severely disrupted. Large accumulations south of the border were confined to
Northumberland, Durham & North Wales.
2001 (October):
1. Record WARMTH by the CET record, also for eastern Scotland. The
(provisional) CET value=13.3degC (+2.7 on 1961-90 climatology), easily beating
the previous October CET record of 13.0 set in 1969. The difference was most
notable in the mean overnight MINIMUM TEMPERATURE, and there were no AIR FROSTS
recorded. For individual stations (using the 1961-90 average), Dyce (Aberdeen),
Eskdalemuir (Dumfries & Galloway), Cambridge and Hurn (Bournemouth) all had
mean MINIMA 4degC or more above, with the anomaly at Cambridge +4.6degC. The
night average at Heathrow (11.3degC) was some +3.3 above average, and was the
highest (for October) in that station's record which began in 1946. In many
parts of the UK, the month was warmer than September 2001. (Also WET by the EWP
series: ~ 160%)
2001 (November & December):
1. In November, 2001, anticyclones dominated the weather, with PRESSURE
anomaly +10 mbar or greater over Wales and the West Country. Specifically, a
large anticyclone settled over the British Isles from the 14th to the 20th
November, PRESSURE peaking at 1044 mbar at midday on the 16th - not too far
from the known 'highest' for November. December also experienced
anomalously high PRESSURE. A 'mean' high was centred over the Channel Islands
(central value ~ 1025mbar), with an anomaly centre south of Iceland in excess
of +16, and anomalies across mainland UK ranging from +9 in southern England to
+14 in the far NW of Scotland. Philip Eden (Weather Log/R.Met.Soc) says
that with the mslp exceeding 1040 mbar somewhere in the UK daily between 8th
& 19th, this may be unique in the instrumental record.
2001 (December):
1. SUNNIEST December on record over large parts of UK (& specifically by
the composite England & Wales record which began in 1909**). Several sites
>=200% of LTA., e.g. Heathrow (London) 93hr/203% & Aldergrove (Belfast)
78hr/200%. ** [ The England & Wales sunshine figure=2.6hr/day (183%).](see
also 1999/2000 winter)
2001 (Annual):
1. Another WARM year. The GLOBAL average surface TEMPERATURE roughly
0.4degC above the 1961-90 average, in the 'top-5' WARMEST years in record which
started in 1860. (Warmest 1998: q.v.) Nine of the 10 warmest years had occurred
since 1990. (reflected in the CET record, with a provisional anomaly of
+0.5degC of the 1961-90 LTA .. probably less for the 1971-2000 base-line though
~ +0.2degC, and a long way short of being in the 'top-ten' of warm years by the
CET.)
2002 (March/April):
1. Notable DRY spell in southern Britain.
2002 (September):
1. DRIEST September Aberdeen (Dyce) & Plymouth (Mountbatten) since 1959.
2002 (October & November):
1. A notably WET (& MILD) pair of months: by the EWP (CET) series, though
not 'record-breaking' as such. Some local all-time records set, e.g.
Aberdeen, St. Mawgan (nr. Newquay, Cornwall) and Aldergrove (nr. Belfast).
Eastern Scotland had it's second WETTEST (areal average) October on record.
Also, using areal-averages, the south & SW of England probably had one of
their WETTEST Novembers in at least 150 years, perhaps longer (some sources say
THE wettest - though I have my doubts about this). Northern Ireland also had a
notably wet November.
2002 (into early 2003) (October - December, into early January 2003):
1. The three months October to December 2002, using the EWP series, were the
third WETTEST in that record. With depressions taking a more than usual
southerly route across the British Isles, exceptional autumn and early-winter
rainfall was the result across southern areas. The concentration / frequency of
high-rainfall events was not quite of the order of 2000 (q.v.), but FLOODING
did result, with the Thames Valley particularly affected - the events
spilling-over into January 2003.
2002 (Annual):
1. Another WARM year. (CET=10.60degC/+1.1degC [ on 1961-90 means or +0.9degC on
1971-2000 means ] (fifth WARMEST .. behind 1949, 1990, 1999 & 2006). Mainly
due to January to April 2002 being extremely MILD, with MAXIMUM TEMPERATURES in
February the second HIGHEST on record; night-time TEMPERATURES also noteworthy
for being well above average in several months - implying increase in humidity
values over the year as a whole; the average annual MINIMUM CET placed it
second-warmest (after 2004) in that series. According to the Hadley Centre (at
the time), five of the six warmest years in the full CET record have occurred
since 1990, the one 'outlier' being 1949.
2. Global surface TEMPERATURE (Land & Sea) was apparently the second
highest in the appropriate series since 1860: +0.70degC anomaly - nine of the
10 warmest years in that series have occurred since 1990, including 2000 &
2001 - only 1998 was warmer than 2002. By Land-series only, it was the WARMEST
in the record. 3. Notably WET in some parts of the UK. By the EWP series, the
total=1118mm (121%), placed it at number 10 in the series 'top-10', but looking
at the past 100 years, the total was only exceeded four times (1903, 1927, 1960
& 2000). For Aldergrove (Belfast airport) specifically, the year saw a
total of 1095, the WETTEST year in that station's record (started 1927), the
previous highest being in 1966. No individual monthly records broken, but the 3
months October to December were the third WETTEST on record. In northern
England, rainfall in February beat the previous (areal-average) value by 2mm.
FLOODING was again a feature of the news, though not the widespread/intense
events of 2000.
1998-2002 (5 year period):
1. According to COL the period 1998 to 2002 inclusive was the WETTEST five-year
period in the EWP series (which starts in 1766); the total = 5419 mm.
The others are: 1875-1879 = 5205, 1876-1880 = 5197,
1997-2001 = 5145 & 1878-1882 = 5107mm.
2003 (January): HIGH (LOCAL RECORD) UK TEMPERATURES
1. On the 26th, a MAXIMUM TEMPERATURE of 18.3degC at Aboyne, Aberdeenshire.
This equalsthe previous record for January in the UK, set at Aber, North
Wales on the 10th January 1971 & 27th January 1958.
2. In England, 17.4degC was recorded on the 26th at East Malling (Kent) and is
apparently the highest January regional value for the SE of England:
previous highest 16.3degC at Gravesend-Broadness (Kent), on 6th January 1999 -
though there are considerable doubts about this station's readings /
exposure etc. (based on 'Weather'/RMetSoc & MetO press releases)
2003 (April): HIGH TEMPERATURES - NEAR RECORD APRIL UK/RECORD
SCOTTISH
1. Very high TEMPERATURES mid-month (with heath/moorland FIRES breaking out -
mainly started deliberately). On the 16th, Wolverhampton MAXIMUM TEMPERATURE
= 27.3degC, the HIGHEST April temperature in the UK since 16th
April, 1949 (Met Office). Individual station records (varying record-length)
broken in many places, and on the 17th, the afternoon MAXIMUM of 26.9degC at
Lochcarron (Western Highlands) set a new April temperature record for Scotland,
beating the previous record of 26.7degC (?80degF converted?) at Dollar
(Clackmannanshire) in April 1870.
2003 (January - April): NOTABLY SUNNY - LOCAL RECORDS BROKEN IN
MARCH
1. For the period January to April (inclusive), the total SUNSHINE across the
UK was remarkable. Philip Eden (WeatherOnline) states: " The first four
months of 2003 have provided .. the SUNNIEST start to the year since
1893". The averages (from Met Office site) over England & Wales=149%
(Feb: 152%, Mar: 166%); Scotland=138% (Mar: 166%); N. Ireland=139% (Mar: 169%).
[ anomalies wrt 1961-90 averages ]. Inspecting the graphical output, it appears
that Northern England has benefited most with an overall anomaly for these four
months=153%.
> Feb: sunniest since 1988, with anomalies at least 140% and locally over
160%; Northern Home Counties, East Midlands, East Anglia and areas around the
Solway Firth particularly blessed.
> Mar: Regarded as SUNNIEST March across England & Wales 'on-record'
(probably since early 1900's for a few individual stations). Also
'record-breaking' for Scotland (& possibly N.Ireland). SUNNIEST March at
Prestwick, Kinloss and Aberdeen since at least 1951. At Eskdalemuir sunniest
since 1929 and at Paisley Observatory since 1894 (Met Office). (Also a DRY
month).
> Apr: Also well-above average SUNSHINE values across the UK, though no
individual records broken.
2. The abundance of SUNSHINE coincided with a lack of RAINFALL during the
months of February to April: averaged over the whole UK something like 65% of
"expectations" for these three months. The strong sunshine and dry
(or drying soils), undoubtedly helped along the way to the events in the
following summer (q.v.); as it was, TEMPERATURE anomalies in March and April
were around +2degC across large areas of the UK, with Scotland particularly
favoured.
2003 (June-August/summer): EXCEPTIONAL WARMTH ACROSS UK - RECORDS
TUMBLE
1. On the 10th August, 2003, the 'all-time' UK highest TEMPERATURE was set at
Kew (Royal Botanic Gardens) with 38.1degC. ( This beat the previous highest of
37.1 at Cheltenham on 3rd August, 1990 ). On this day, many stations in the
Greater London/suburban south-east of England reached around 38degC, but some
of the highest values have been questioned: for example, Faversham (Brogdale)
reached 38.5degC, but this is now not used due to problems with over-sheltering
of the site. Gravesend also reached 38.1 (as above), but it too is suspect:
amongst others (accepted) are: Aldenham School & Heathrow/37.9,
Wisley/37.8, Northolt/37.7, St. James's Park & London Weather Centre/37.6
and Greenwich Observatory 37.5degC. This day's WARMTH extended into the East
Midlands/Lincolnshire to the north and down across Wessex/Central southern
England.
2. The period 3rd to 12th August was notably WARM, with many records broken.
MAXIMA achieved or exceeded 30degC somewhere or other for all 10 days, and on
6th, 9th and 10th, 35degC was reached/exceeded. On the 9th August, Greycrook
(Scottish Borders) achieved 32.9degC, a new "all-time" Scottish
record for any month [ which beat 32.8degC at Dumfries 2nd July, 1908: this may
have been a degF value converted ]. On the Channel Islands, the day maximum
TEMPERATURE at St.Louis/St.Helier observatory was 36.0degC: this was a new
record for the site, AND for the Channel Islands as a group (in a record since
1894). In addition, many high NIGHT-TIME MINIMA were recorded. Guernsey airport
had a minimum of 23.7degC and St. Mawgan 23.1degC both overnight 4th/5th
August, and both long-term local records.
3. Looking at the SUMMER overall, and only at CET values, the overall anomaly
was +1.6deg (on 1971-2000 values), and is regarded (at the time) as the
fourth-WARMEST in that record. June was the WARMEST since 1976, and August
specifically was in the 'top-5' of all-time warm so-named months, and in the
top-dozen or so 'all-month' warm ones. Not necessarily DRY, with near-average
or above-average rainfall June and July, but August again was notably DRY: the
EWP anomaly was around 27% and was in the 'top-10' of dry so-named months.
Turning to Scotland, June and July was one of the WARMEST such pairings in the
past 100 years (warmest since 1961), and as August anomaly was +2.0degC, I am
sure that the summer overall north of the border was close to record-breaking.
4. By the end of August, 2003, the overall year-so-far anomaly was running at
around +1.5degC (depending upon which base-set you use). Also, it was announced
in 2004 that the period March to August, 2003 was the WARMEST such period in
the CET record (starts 1659) [RMetS/'Weather'/MetO-Hadley].
5. According to a 'news item' in the April issue of 'Weather' (RMetS), the
University of Berne stated that summer 2003 was "very likely" to be
the HOTTEST since 1500 over Europe as a whole - probably by a 'wide
margin'; major increase in rate of recession of Swiss glaciers.
2003 (August/September):
1. Using the EWP series, the total precipitation for these two months was 56mm,
the second-lowest in the series which began in 1766. (The driest such period
was in 1959 with 46mm).
2003 (10th August): CARLTON-IN-CLEVELAND INTENSE STORM
1. On the 10th August (Sunday), when the 'all-time' UK highest temperature was
being set (see elsewhere), a very INTENSE RAIN-STORM occurred at
Carlton-in-Cleveland (North Yorkshire) when 47mm fell in 12 minutes (46mm in
10min) starting at 0935GMT. The storm was accompanied by a SEVERE SQUALL, HAIL
up to 2 cm diameter and a 9degC drop in TEMPERATURE. There was major DISRUPTION
across the North Yorkshire/NE England region, with many roads FLOODED,
buildings DAMAGED/FLOODED and some trees blown over. The usual crop of power
cuts and a lot of DAMAGE to buildings and cars due to the HAIL. Many vessels
offshore Teesmouth were caught in the SQUALLS, with 2 fishermen being found
dead after the storm had passed. This storm rates as one of the most intense
DOWNPOURS ever to be recorded (and accepted) in the British Isles.
(source = Royal Met.Soc/'Weather')
2003 (November):
1. The daytime MAXIMUM TEMPERATURE of 20.2degC on the 7th November, 2003 at
Lochcarron (Wester Ross) was the highest in Scotland since 1946. According to
Eden (RMetS/WxLog) 'Before this year [2003], November maxima of 20degC or more
in the UK had occurred only in 1906, 1938, 1946 & 1997'.
2003 (Autumn):
1. The three-month total (September, October and November) SUNSHINE total at
Heathrow airport (to the west of London) was 456hr. This easily exceeded the
total of 423hr set in 1997 (q.v.) and this autumn was probably the SUNNIEST
such across London and the Home Counties for at least 50yr.
2003 (Annual): WARM/SUNNY & DRY - AS MET OFFICE LEAVES
BRACKNELL!
1. TEMPERATURES: well above average, particularly using DAY-TIME MAXIMA.
According to the Met Office, it was the WARMEST year in Scotland since at least
1961, with an average TEMPERATURE of 8.3degC. The highest UK (known) daytime
MAXIMUM TEMPERATURE was recorded in August (q.v.).
> Using the Central England Temperature record, with a value of 10.5degC, it
was in the 'top-10' WARMEST years, with an anomaly (re: 1971-2000 dataset) of
+0.8degC. [for the whole earth, the THIRD WARMEST year (in series from 1861).]
2. SUNSHINE: abundant SUNSHINE was a feature across the British Isles
(c.f. 1959, the year the Meteorological Office began it's HQ building in
Bracknell). In the composite record since 1961 (for England), with 1777hr, it
was easily the SUNNIEST over the past 40-odd years. Similarly in Scotland, the
composite sunshine record placed 2003 as the SUNNIEST for that nation over a
similar period. Several sites with long-running records (though of the
Cambell-Stokes variety), recorded their SUNNIEST year on record. Notable
amongst these are Weymouth (2113h/start 1895), Malvern (1776h/start 1929) &
Nairn (1552h/start 1931). More than 2000h of SUNSHINE was recorded from Dorset
to Suffolk as well as in the Channel Islands. According to the 'News' section
of 'Weather' for March, 2003 .. "the fact that 2000 hours appears to have
been reached in several inland areas of south-east England does appear to be
unprecedented ..". (RMetS/'Weather')
3. PRECIPITATION: Using the England & Wales (EWP) precipitation
series, the February to October 2003 total was the second-lowest, after 1959,
since 1921 (R.Met.Soc/'Weather'). Water resources were apparently reasonable
due to the high rainfall winter 2002/2003. However, river-flow was well down by
late autumn 2003. (A WET end to November helped the situation):
> In the Kew Observatory series (begins 1697, ends 1980 - extended using
local sources), this period (February to October) was the second DRIEST, beaten
only by 1921.
> For the YEAR, the EWP ended up 761mm (83% 1961-90 LTA), and this total was
only beaten by 7 other years since 1900 (specifically, 2003 was the DRIEST year
since 1975). However, for the entire series (since 1766) 2003 doesn't even
appear in the 'top-10' of DRY years.
2004 (February):
1. Notably WARM at the beginning of the month; Using the CET daily series, both
the night 3rd/4th & the day 4th produced the highest CET (areal mean)
February values for the respective data-sets (minimum since 1878, maximum since
1772). The MINIMUM value in particular beat the previous value (10.3degC)
handsomely. On the 4th, the HIGHEST MAXIMUM recorded was 17.9degC at Gravesend
(Kent), with many values 16 or 17 across the Midlands, East Anglia & SE of
England. However note that these values are NOT records for either February, or
the first-third of that month, (but the Gravesend value is a record - at this
time - for the first week of February). According to Philip Eden
(RMetS/'Weather Log':.. " as measured by the CET, the first half of the
month was the warmest, alongside 2002, since before 1869 ..."
2. Exceptionally SUNNY in Northern Ireland & the Isle of Man. Although
using different types of recorder, it may have been the SUNNIEST February in
these areas for over 50 years, and in the case of Belfast, perhaps since 1906.
3. The last two days of January and the first four of February 2004 was an
exceptionally WET period across Snowdonia. At Capel Curig, 417mm was recorded
over these six days. This led to severe FLOODING in parts of Wales, most
especially in the north. Andrew Sibley ('Weather'/RMetS: Feb. 2005) reports
that in the 24hr period from 1900GMT on 2nd February until 1900GMT on 3rd
February, 169.2mm of rainfall was recorded at Capel Curig. As a result of the
high RAINFALL, the banks of the River Conwy broke, and the adjacent railway
line carrying services between Llandudno (North Wales coast) and Blaenau
Ffestiniog, Gwynedd was severely DAMAGED and put out of action for many months.
2004 (August): THE BOSCASTLE STORM
1. On the 16th, TORRENTIAL RAINFALL fell on the headwaters of the two rivers
that drain (in combination as the R. Valency) through Boscastle (N.Cornwall).
The highest (24hr) rainfall for this event is 200.4mm at Otterham (nr.
Boscastle), which fell in under 5 hours. At Lesnewth (also nr. Boscastle),
85.7mm fell in just one hour at the height of the storm (actually a series of
heavy rain-producing cells). An estimate (radar and other evidence) has
been made that at least 250mm fell from the storm-complex over Hendraburnick
Down, from where many local rivers flow. Much DAMAGE was done in the town to
buildings, bridges & vehicles - many of the latter being swept out into the
harbour. All boats in the harbour were destroyed (or otherwise lost to the
sea). No-one was killed. FLOODING also occurred in other parts of N.Cornwall,
e.g. Crackington Haven (where structural damage also evident) and Camelford.
[for more on this see S Burt, 'Weather' / RMetS, August 2005.]
2. For August 2004, in the EWP series (since 1766), it was the fifth WETTEST
so-named month. The total was 157mm, or approx. 220% of LTA. Some areas were
even wetter (see above & below), and Leuchars (Fife) recorded 212mm of
RAIN, representing over 340% of LTA. However, it was drier in parts of the
southeast of England & the north of Scotland.
2004 (Summer):
1. With the JET-STREAM often a long way south (for a NE Atlantic summer), it
was very unsettled & often WET across the British Isles. It was
particularly WET across the English Midlands, northern & eastern England
& parts of Scotland - some places had well over double August RAINFALL, for
example the anomaly for Lowestoft was 294% and for Leuchars (Fife), the total
of 212mm represented ~340% of LTA. Earlier, during June, a notably DEEP
DEPRESSION (for June) moved across the middle of these islands (from west to
east), bringing STRONG WINDS and a central PRESSURE of 982mbar - this equals
the lowest value for England and Wales for June in at least 100 years.
2004 (Annual): ANOTHER WARM YEAR
1. The Central England Temperature (CET) was: 10.5degC. This places it inside
the 'top-10' of warmest years in the all-time list. By the mean annual MINIMUM
TEMPERATURE (CET), this was the warmest by that measure in the series. In the
period 1990 to 2004, 8 of the warmest years in the entire series (since 1659)
have occurred in that 15 year span. (For the globe, with a mean anomaly of
+0.4degC, it was amongst the five WARMEST years since 1861: it is worth noting
that there was NO El Nino event to enhance the warmth).
2. A notably THUNDERY year across lowland England. At Heathrow airport (west
London), a total of 23 days with THUNDER recorded, the highest such annual
figure in their record which began in 1947. Within the SE region of England,
particularly just to the south of London & across Norfolk, some places
recorded up to 30 days with 'thunder heard'.
2005 (January): CARLISLE & WELSH FLOODS
1. Very UNSETTLED first two weeks: although monthly RAINFALL overall was below
average (notably DRY east, south & Midland England), locally in Wales and
NW England, high-intensity RAINFALL over the period 7th - 10th contributed to
SEVERE FLOODING, most notably in North Wales and Carlisle, Cumbria. Over a two
day period covering 7th/8th January, Capel Curig (N.Wales) recorded 184mm and
Keswick (Cumbria) 118mm.
2. Later, on the 11th/12th of the month, a vigorous, very deep DEPRESSION moved
to the NW of Scotland, with HEAVY RAIN/SEVERE GALES (low-level GUSTS up to
90+knots) affecting N. Ireland & W/NW Scotland; there was extensive DAMAGE,
with some people KILLED.
2005 (May):
1. A COLD May. On the night of the 17th / 18th, the TEMPERATURE fell to
-6.3degC at Tulloch Bridge [Lochaber]; according to Philip Eden (usw), this was
the lowest May temperature in the UK since 1982, and possibly the lowest
minimum that late in the year since 1956.
2005 (June):
1. As a DROUGHT continued to affect SE England, Hawnby, on the North York Moors
experienced something like a month's rainfall (~50mm) in around half-an-hour on
the 19th, and 70mm in three hours. Parts of Helmsley and Hawnby (and other
local villages) were severely affected by sudden FLOODING: helicopters had to
be used to rescue people from cars etc., as streams became swollen torrents. No
deaths were recorded, but there were widespread power cuts & property
DAMAGE.
> In the SW of England, near Padstow (Cornwall), another high-intensity,
high-yield RAIN-STORM occurred on the 29th: over a period of about 4 hours, at
St. Merryn, an estimated 75-100mm of RAIN fell in this short period
(Crugmeer, near Padstow recorded 51mm, most of which fell within 75mins); roads
became impassable with motorists trapped in cars. (Eden / RMetS "Weather
Log" & "Weather Eye")
2. Notably CHILLY nights during the first 10 days of the month, with some
stations breaking records during the period for low NIGHT MINIMA. Overall
though, it was a WARM month, at least for England & Wales - for some the
second warmest June since 1976. Across some parts of the lower Thames Valley
(including London), the TEMPERATURE anomaly was around +2degC on the 1971-2000
LTA.
2004/2005 (November - June):
1. A lengthy DRY SPELL for many parts of England & Wales, though
concentrated in its severity across southern England, from south Cornwall &
far south Devon in the west to much of Hampshire, Surrey, Berkshire, West
Sussex and the London area in the east. In these aforementioned regions,
PRECIPITATION anomalies (wrt 1961-1990 averages) were below 60%. [ By contrast,
NW Scotland had anomalies in excess of 140%, largely due to an excessively WET
winter.] (MetOffice / RMetS / 'Weather').
2005 (July): BIRMINGHAM TORNADO
1. On the 28th, a destructive TORNADO moved across southwestern parts of
Birmingham, leading to a score of injuries (but no deaths) & extensive
DAMAGE to buildings, vehicles, trees etc. (See also: 1931 - June)
2005 (September, October & Autumn):
1. Using the CET series, September 2005 had an anomaly (on 1971-2000 dataset)
of +1.5C, and this placed it just outside the 'top-10' warmest Septembers in
that record (since the 17th century); it was one of four or five warmest
such-named months over the previous 100 years. October was remarkably WARM
(particularly by night - see **below), with an anomaly of +2.7C using the CET
value, and thus within the 'top-5' of warmest such-named months (in date order:
1921, 1969, 1995, 2001 & 2005) in the entire record (2nd WARMEST after 2001
using the Hadley figures). (** for a cluster of stations from the NW Midlands
down to the south coast, the overall anomaly for mean minima was well in excess
of +3C). October was however distinctly disappointing as regards SUNSHINE.
> Combining September & October in the CET record, it was amongst the
WARMEST such pairing in that series: depending who you take, it could have been
the warmest (vying with 1949 for that honour).
2. Autumn (September, October & November), was by a whisker the WARMEST
such-named season since 1978. The mean CET was 11.5degC (+1.2C anomaly),
rendering it one of the 5 or 6 WARMEST Autumns in the past two centuries, and
if it was not for the very cold second half of November, it might have been the
'all-time' warmest autumn over England & Wales.
2005 (November & December):
1. According to Philip Eden, "it was the SUNNIEST November, averaged over
England & Wales, since before 1881, and new station records were posted at
more than 20 sites in eastern, central & southern England". In
particular, an excess over long-term mean values of 150% or more occurred
widely across the north Midlands & N. England, with pockets similarly
favoured across SE England. Waddington, near Lincoln (Lincolnshire) had 111 hr,
which represented 164% of the LTA. The excess of SUNSHINE continued through
much of December 2005, with anomalies locally well in excess of 170%. For
England and Wales, it is thought to have been the fourth SUNNIEST December
since the late 19th century: Philip Eden writes that it was the SUNNIEST
November & December since modern records began.
2005 (December): BUNCEFIELD OIL-DEPOT FIRE
1. Just after 0600 GMT on Sunday, 11th December, a series of large explosions
occurred at an oil-storage depot (Buncefield) on the outskirts of Hemel
Hempstead, Hertfordshire. The resultant fire was regarded as the most intense /
largest in western Europe since the end of the Second World War. The plume of
smoke from the fire affected some areas well away from the source, reducing
solar radiation significantly, until the fire was extinguished late the
following day. Dispersion of the smoke plume was slow, as the dominant pressure
pattern was anticyclonic.
2005 (Annual):
1. According to WMO members, 2005 was the second WARMEST year on record at the
time (demoted to third after 2010), and is amongst the four or five WARMEST
years since 1861. (1998 is the warmest q.v.). However, according to the US
Climate Data Center, 2005 may have been the (equal) WARMEST, with 1998.
The fact that this was a 'near-record' year for warmth is doubly interesting,
as there was NO strong El Nino event, as there was in 1998.
> By the CET record, the anomaly was around +0.7C (wrt 1971-2000 series, or
+0.9C wrt 1961-1990 standard), and placed 2005 within the 'top-10' of warmest
years. Of the 10 years 1996-2005, 8 had all-year anomalies of greater than
+0.5C. The consistent WARMTH of the past decade is also reflected in series
covering Scotland & Northern Ireland. Whichever way you look at it, it was
an exceptionally warm year, following a continuing upward curve in national
TEMPERATURES.
2004-2006 (November 2004-January 2006):
1. According to the Met Office (as reported in 'Weather', March 2006), the DRY
spell over SE & Central Southern England over this period represented the
DRIEST November-January period since 1920-22. However, this anomaly is focussed
in a rather narrow strip from Hampshire to Kent.
2006 (June/July):
1. June & July 2006, taken together, were notably WARM & very SUNNY.
There was also a lack of RAINFALL, at least over large parts of England &
Wales.
Much of Britain was exceptionally DRY until the last week of June, 2006. For
June specifically, by the EWP series (MetOffice), the value of 24 mm
represented ~35% of the long-term average. For the two months together, the EWP
total=63 mm, about half the average (1971-2000) RAINFALL. Only 3mm of rain fell
at St. Catherine's Point (IoW) & 4mm at Benson (Oxfordshire) [Philip Eden].
According to COL (bulletin), a large area of the Midlands, north & west
Home Counties & parts of East Anglia had <25% of average, with a small
area around Bedfordshire / north Buckinghamshire ~10%.
2. TEMPERATURE: Using the Central England Temperature (MetO/Hadley) series,
these two months together were in the 'top-3' for WARMTH in that series (begins
1659), alongside 1826 & 1976. By mean MAXIMUM TEMPERATURE, it was arguably
the warmest such pairing for over a century. Specifically, June 2006 was
probably the WARMEST June across a large part of the British Isles since 1976
(a memorable summer), with anomalies typically +2C across much of England &
Wales. Looking only at mean MAXIMUM TEMPERATURES, then anomalies exceeding +3C
were reported from central southern & southeast England. July was also a
very WARM month: the provisional CET value of 19.7degC places it as the WARMEST
July (and WARMEST any-named month) in this long established record.
There were two HOT spells; one at the beginning of the month, and one from 16th
- 19th, and on this latter date, the all-time (known/accepted) July British
Isles TEMPERATURE record fell; 36.5degC was reported from Wisley, Surrey,
beating the previous (accepted) highest of 35.9degC at Cheltenham in 1976.
3. Following a very SUNNY June across much of Wales, central & southern
England, July saw many long-standing SUNSHINE records broken across a wide
swathe of Britain, from south & southeast England to the central lowlands
of Scotland. According to Philip Eden, this was (for England & Wales)
'easily the SUNNIEST July since records began in 1881 .. and probably also the
SUNNIEST calendar month of any name on record.' Specifically for southeastern
England, with total SUNSHINE in the range 300-350 hours, it was probably on a
par with the very sunny month of July 1911 in this region, though comparison is
difficult due to changes in instrumentation used.
2006 (Summer):
1. Although PRECIPITATION averaged over the country was below average (for the
England & Wales series ~80% of 1971-2000 average & for Scotland ~82%),
the summer was notable for two dramatic STORMS:
> On the 26th June, showers / THUNDERSTORMS readily formed, and at Penzance
(Cornwall), aided by sea-breeze convergence, 82.1mm of RAIN was recorded in the
24hr from 0600GMT on the 26th (mostly in the evening & early part of the
night), leading to much FLOODING in the area.('Weather', August 2006 &
others)
> On the 13th August, THUNDERY RAIN developed along a marked line of
convergence which stretched from East Anglia to Hampshire. By the late
afternoon / early evening of the 13th, some places within this zone had at
least 80mm of rain (within roughly 6 hours), with isolated instances of over
100mm of RAIN: NE Hampshire & NW Surrey were particularly badly affected,
with the local railway line closed for four days, properties FLOODED & much
disruption to road transport.
> In addition, East Anglia had a particularly WET August, with a range of
%ages of 170% across Norfolk & 250% for Suffolk.
2. According to the Met Office, the three-month summer of June, July &
August was one of the WARMEST on record for the UK, with an anomaly of roughly
+1.5degC on the long-term mean. For the CET domain specifically, with a
(provisional) value of 17.2 (+1.6C on 71-00 mean), it was ranked fifth in the
whole series. It was also SUNNY and DRY (see 1. above). [ The
WARMTH was a feature for a wide area of continental Europe, with anomalies
generally +1 to +2degC, and in parts of northern Europe, the anomaly was up to
+4degC.]
2006 (Autumn): RECORD-BREAKING WARMTH
1. This was, both by the CET and UK-wide record, easily the WARMEST Autumn in
their respective series (for the CET since 1659) - the WARMTH was spread out
across all three autumn months with September setting a new record (see below);
for the CET, the value was 12.6degC. From COL records, the warmth was most
evident (within the British Isles) across SE and Central Southern England &
East Anglia, with an anomaly (wrt 1971-2000 means) of +2.6C. (Previous warmest
Autumns in the CET series were 1730 & 1731; the figure recorded for 2006
outstripped those for these 'ancient' years by a considerable amount - around
0.8C! - see also 2011 for the 'second-warmest').
[ The exceptional warmth was a feature of virtually the whole
of Europe - only Greece, the southern Balkans & Turkey-in-Europe missing
out. A broad swathe of anomalies >+3C stretched from SW France, across all
of Germany & the Low Countries to the Czech Republic & the Baltic
States. ]
2. September 2006, was the WARMEST September in the CET record: The
(provisional) figure of 16.8degC, is 3.1C above the 1971-2000 LTA, beating the
previous 'record-breaker' in 1729. Using a wider measure covering the
whole of the British Isles, it was the WARMEST September for at least
100 years. (Met O / COL). (Also worthy of note was that owing to the fact that
August 2006 was 'around average' as regards temperature, September was
considerably warmer (& also SUNNIER) than this nominally summer month, by
as much as 1C in some eastern areas of England. According to Bob Prichard /
letters COL / taking sunshine AND warmth together, this September was
unparalleled in the modern record.)
3. October 2006: an EXCEPTIONALLY WARM month (again!): The CET (provisional)
value was 13.0degC, representing an anomaly (wrt 1971-2000) of +2.6C, with
anomalies locally across southern England of +3.5degC. The WARMTH was again (as
for September) experienced across the greater part of the UK, though October
2005 was technically warmer for England & Wales. This October lies in the
'top-5' of warm such-named months in the series which began in 1659.
4. For the extended period April - October, 2006, it was the WARMEST
thus-defined period in the CET record.
5. It was also a WET Autumn in central-southern England, the south, west &
northern Home Counties & parts of East Anglia, together with many populated
parts of Scotland - in the former case, this was important as it offset a
DROUGHT that had triggered water supply restrictions across parts of SE
Britain; in the latter case it 'set the scene' for some serious FLOODING during
the subsequent winter season.
2006 (December):
1. The north-west London district of Kensal Rise experienced a damaging TORNADO
(T4 at least, perhaps T5) on the 7th December, 2006. A small but intense line
of THUNDERY downpours moved quickly east across southern England, reaching
London around 11GMT. It produced gusty winds, heavy RAIN, HAIL & notable
'day-darkness'. ('Weather' Jan 2007 & TORRO).
2006 (Annual): WARMEST-EVER YEAR IN THE CET RECORD
1. 2006 is the WARMEST year in the CET record (began 1659), with a value of
10.8degC. This represents an anomaly of ~ +1.3C. The previous warmest
years were 1999 & 1990. Using a wider measure covering the whole of the UK
confirms that this was the WARMEST year over that domain since at least 1914
(previous warmest across the whole-UK was 2003).
2006/2007 (Winter):
1. Exceptionally MILD. Using the CET record, for the three months DJF=6.4degC
[anomaly +1.9C on 1971-2000 means], the WARMEST winter by this measure since
1989 (6.5degC). In the entire series (since 1659), this was the fourth warmest
winter by this measure. Much of lowland England had an anomaly on MEAN
TEMPERATURE greatly exceeding +2.5C.
2. January was a particularly WARM month. By the CET record, with a value of
7.0degC (+2.8C), this January was the fifth WARMEST such-named month in the
series (began 1659); it came behind: 1796, 1834, 1916 & 1921. According to
Philip Eden (Weather Log/RMetS) " rarely for January, there was not a
single instance of a sub-zero maximum at a low-level site in the UK ".
3. Two points of note: the Glasgow area apparently had it WETTEST November
& December 'on record' (Bishopton 303 mm/289% and 295 mm/260%
respectively), whilst at Aberdeen, the SUNSHINE total of 88hr greatly exceeded
the previous December record in 1951. (Philip Eden/Weather Log/R Met Soc).
Across the winter as a whole, according to the Met Office, large areas of
central, west & NW Scotland had PRECIPITATION anomalies exceeding 150%,
with small pockets (including some high population-density areas in the
'Central Belt'), exceeding 175% of the long-term average. [see also entry
below.]
4. SEVERE GALES caused widespread DISRUPTION and loss of life on the 18th
January, 2007 as a depression tracked eastwards across Scotland & headed
for northern Europe. Like the STORMS of the 3rd January, 1976 and the 25th
January, 1990, it was notable for high GUSTS in central and eastern England (67
knots Heathrow & Northolt) as well on western coasts. In places, it was the
severest GALE since the 'Burn's Day storm' of 1990 or the storm of the 30th
October, 2000. 13 people were known to have been killed on the day in the UK.
('Weather', Feb2007)
2006/2007 (latter Autumn, all Winter & early Spring):
1. The months October 2006 through to February 2007 (March for Scotland) were
consistently blighted by WET weather; the individual figures [using the England
& Wales Precipitation series (EWP)] aren't too dramatic, but accumulated
over these five months, the total by this measure=552 mm, representing around
122% of the 1971-2000 long-term average. (EWP)
These figures don't of course apply to Scotland and here the excess-over-normal
was even more dramatic: in this country, significant FLOODING was reported at
various times throughout these months. For example, in October 2006, parts of
NE Scotland had well over twice 'average' RAINFALL, with isolated pockets
~300%. In November & December 2006, there was 'record' RAINFALL in the
Glasgow area (based on the Bishopton recording station - see above), with
FLOODING the result - by December, many Scottish rivers were close-to or
exceeded capacity. The very WET weather continued into January & February
& early March of 2007, with further problems following the heavy excess of
RAINFALL. Accumulating the Bishopton (Renfrewshire / west of Glasgow) RAINFALL
over these 6 months, the total was 1185 mm or just over 200% of long-term
average. (Eden/Wxlog/UKMetO)
2007 (April):
[ According to Philip Eden in 'Weather Log'/R MetS: this was the eleventh most
anticyclonic April in 134 years of records.]
1. Exceptionally WARM, and many areas of the British Isles set new records for
both April maxima and mean TEMPERATURES. Maximum temperature anomalies were at
least 5C above the long-term average over many parts of southern England, with
a local +6C anomaly 'hot-spot' in SE Hampshire / West Sussex. By the CET value
( 11.2°C/+3.1C c.c. 1971-2000 series), it was the WARMEST April since at
least 1659. The previous warmest April was that of 1865, with a value of
10.6degC, so rather than the new record being a few tenths of a degree above
the previous 'record', this year the record was 'smashed' by 0.6C. [ now see
2011 for a surprise! ]
2. It was also very DRY, with near-DROUGHT conditions over southeast England,
East Anglia, the East Midlands, Wessex & Lincolnshire: many places here
recorded much less than 5 mm of RAINFALL, with a few spots (i.e
Norfolk/Suffolk, lower Thames Valley & either side Thames Estuary) no more
than 1 mm. From the Royal Met.Soc 'WxLog' data, Lowestoft (Suffolk) &
Hastings (Sussex) did not return measurable rainfall for this month, whilst
Cambridge recorded just 1 mm (2%).
> With an EWP value of 10.4 mm (representing just 17% of the LTA 1971-2000),
it was in the 'top-10' DRIEST such-named month in the series (starts 1766):
more impressively, for the south-east of Britain (using the Hadley dataset /
definition), it was probably the DRIEST April (since 1912) with just 2.3 mm of
PRECIPITATION and with this value it was also one of the DRIEST months of
any name in the southeast.
3. It was also very SUNNY: exceptionally so for the southern half of Britain,
where some stations had their sunniest April on record. According to Philip
Eden (WxLog/RMetSoc), it was the second-SUNNIEST April (after 1893) in a record
that starts in 1881.
2007 (Spring):
1. Spring was the WARMEST in an areal series back to 1914 for the UK &
England and Wales, joint-warmest for Scotland and second-warmest for Northern
Ireland. It was also SUNNY, with anomalies exceeding 125% over most of the UK,
and around 140% in a zone extending from the Isle-of-Wight, through Hampshire
and east Dorset to much of Berkshire & south Oxfordshire. [Previous warmest
1945.] (Met Office/NCIC as reported in 'Weather', July 2007)
2007 (May, June & July): MAJOR FLOODING EVENTS OVER
ENGLAND
1. This period was exceptionally WET, both as regards the individual months,
and when aggregated. These are the three wettest sequence of such months in the
England & Wales Precipitation (EWP) series**, with a total EWP value of 401
mm, (216% 1971-2000 LTA). May, with 118.4 mm (194%) was just outside the
'top-10' of such-named months in the series, and June, with 144.9 mm (213%) was
third in that list. July was also a very WET month with nearly two-and-a-half
times average RAINFALL.
From the COL (Climatological Observers' Link) analysis, the wettest areas
taking these three months together (anomaly >250%) were: South & East
Yorkshire, most of Lincolnshire [ ~300% in the east of this latter county ],
the western half of the Midlands and the Severn & upper Thames valleys. In
these latter two catchment areas, the anomaly was around or greater than 300%.
There was a small area encompassing the Isle of Wight and the immediate Solent
region of 250-300% anomaly.
[**Previous wettest MJJ by the EWP dataset occurred in 1789, with a value of
349 mm q.v.]
2. As a result of the heavy & often prolonged RAINFALL across these three
months, there were many stories of disruption and DAMAGE during this late
spring / early-to-mid summer period: major events, such as Wimbledon,
Glastonbury etc., were affected, as well as many smaller events around the
country. FLOODING attained 'major' proportions for South & East Yorkshire,
the north & west Midlands & along the Severn & upper Thames
valleys. In a government-sponsored report after the event, it was stated that
the disruption arising from the flooding was the "largest peacetime
emergency since World War II" (Pitt review/2008); the deaths of 13 people
were attributed directly to the various events noted, and nearly 50 000
dwellings flooded to some degree - often involving total loss of possessions
& usable habitation.
In June, two major rainfall events between the 13th and the 15th &
then again around the 24th/25th led to major FLOODS affecting communities from
the Midlands to South & East Yorkshire; there was also significant flooding
for some counties in Northern Ireland. The flooding in Yorkshire, particularly
near Doncaster & around Hull & Sheffield, generated headlines in the
national & international press - infrastructure items such as pumping
stations were seriously affected, and many people were unable to return to
their homes - estimates suggest at least a year for full recovery.
In July, short-lived flooding affected southern England, particularly in
parts of London, but the major event of this month occurred across the lower
Severn and upper Thames valleys around & in the days after the 20th:
intense RAINFALL produced well in excess of 100 mm over the two days 19th &
20th. (Sudeley Lodge, ~10 km NE of Cheltenham / Gloucestershire 163.1 mm and
Pershore / Worcestershire 157 mm across the two rain-days), and hundreds of
thousands of people were without fresh water for several days, electricity
supply was interrupted & many were flooded out of their homes. Comparison
was made with the March 1947 flooding in the same area - similar in effect, but
completely different in type.
[ NB: the Foot & Mouth outbreak (early August) in Surrey
may have been linked to faulty drainage pipes, and so the abundance of surface
water, possibly contaminated with the virus, could also be linked to this poor
spell of weather.]
2007 (Autumn):
1. Very WARM & notably DRY across Northern Ireland, with an overall
TEMPERATURE anomaly around +2C & many areas experiencing 60% or less of the
long-term (1961-1990) average. In particular, the Province had its
second-WARMEST November in a Met Office series that started in 1914. It was
also a very DRY autumn in south & west Wales and the far SW of England.
(Met Office, COL & RMetS/Weather log)
2007 (Annual):
1. According to the annual summary on the Met Éireann web site, it was
the WARMEST year in the respective records at Valentia Observatory (1892) and
Malin Head (1885). For Ireland as a whole, the TEMPERATURE anomaly was just
over +1C; for Northern Ireland, the Met Office(UK) note that in a series
starting in 1914, it was the WARMEST year. By the longer-period CET series,
provisionally 2007 was equal tenth (with 2004 & 1959) in that long series
[started 1659].
2008 (January):
1. Another EXCEPTIONALLY WARM January / winter month. With a CET of 6.6degC
(+2.4C on 71-00 LTA), it was only 0.4C cooler than the previous January [ which
was 5th warmest such-named month q.v. ], and places it (provisionally) at equal
9th warmest January in that series. The WARMTH was most evident across Wales
& England, with large areas of +3C anomaly across central & eastern
England. It is interesting to note that the mean low-level flow (isobaric) was
W or WSW, and thus not bringing air from the 'deep', sub-tropical south, but
from the mid-latitudes of the North Atlantic.
2. RAINFALL was well above average across most of the country (UK) with pockets
of >=200% on LTA scattered about from 'Wessex', across much of the north of
England & around the Forth & Tay estuaries (COL). According to Eden
(RMetS/WxLog), 'new records were set in the Edinburgh, Glasgow & Belfast
districts'. Using the EWP series, this January was just within the 'top-10'
WETTEST such-named months. FLOODING in parts of northern England (amongst
others).
2008 (February):
1. SUNSHINE was remarkably high averaged over the month, especially across
England, Wales, the Channel Islands, much of Northern Ireland & east and
northeast Scotland. Large areas of lowland central & SE England had over
200% of LTA, and according to the Met Office, many parts of England & Wales
had their SUNNIEST February since at least 1929 (start of consistent series).
According to Philip Eden (WxLog/RMetS), it was 'substantially SUNNIER than
previous sunny Februarys in 1891, 1949, 1970 & 1988'. It was also a WARM
month, mainly due to mean MAXIMA being some 2 to 3C above the LTA.
2008 (May):
1. May was dominated by an easterly flow; according to Philip Eden, "it
was the most easterly May in 136 years of record". It was the WARMEST
& DRIEST May on record in many parts of Scotland, Northern Ireland and NW
England and it was also the SUNNIEST locally in northern Scotland. The warmth
was also experienced further south, and it was the warmest May at some spots
for over 150 yr. However, using the CET series, the month fell just outside the
'top-10' of warmest such-named months.
2. It was a WET month across much of southern England & SE Wales, with
anomalies around or in excess of 200% across Wessex and along the Channel
coastline from Plymouth to Dover and round into the Thames estuary. Indeed, in
the extreme east of Kent, the anomaly was circa 400% of the 1971-2000 average.
The excessive RAINFALL that fell during the month meant this was the third
successive wet May across southern & central UK, though it was very DRY
across northern England, Scotland and Northern Ireland.
During the latter afternoon & evening of the 29th, THUNDERSTORMS occurred
across the West Country, with short-lived, SEVERE FLOODING for some in
Somerset.
2008 (August):
1. This month was very WET and exceptionally DULL across much of the British
Isles: large areas (except far N Scotland & North Isles), including most
major population centres, had <70% of the long-term average sunshine, with
significant pockets below 60%, and a few spots lower than 50%, e.g. Eskdalemuir
41.4 h / 36% and Durham 64 h / 48% (WxLog/RMetSoc & COL maps). According to
Philip Eden, "SUNSHINE duration was the lowest in almost 130 years of
records, with the sole exception of August 1912". [Remember that most
modern records are now based on electronic sensors so there is a certain amount
of 'fudging' to compare with the older records.]
2. As to RAIN, anomalies (w.r.t. 1971-2000) were widely 150% or higher, with
large areas of Ireland, central Scotland & Fife well above 200%: in the
Edinburgh area, the anomaly was at least 300%, perhaps as high as 340%.
FLOODING was reported frequently from these areas due to short-period,
high-yield events. An outstanding 'wet' spot proved to be Fair Isle, where in
contrast to the rest of the Northern Isles, the station here collected a 24h
total of 101.2 mm of rain from 0900GMT on the 10th to 0900GMT on the 11th. This
easily beat the previous 24h maximum total of 46.2mm recorded in November 1996.
The total for the month here was 162.2 mm / 265%, easily the WETTEST August on
Fair Isle for over 35 years. [COL, inter alios]
2008 (Summer):
1. RAINFALL:- another wet summer (c.f. 2007); Using the England and Wales
Precipitation (EWP) series, the %ages w.r.t. 1971-2000 data series for June,
July & August were: 95%, 186% & 162%, so nothing like 2007, but the
consistency of 'wet' since March shows up in the figures for March
(141%), April (125%) & May (124%): it was probably the persistent wetness
that led to the FLOODING problems experienced in August this year, coupled to
some exceptionally high point RAINFALL amounts. From the Met. Office summary
(NCIC/'Weather'), the wettest areas were distributed across south & central
Scotland, much of northern England (particularly the NE), S & W Wales, the
West Country & much of Northern Ireland.
2008 (October):
1. On the 25th, due to a combination of HEAVY RAIN & HIGH, GUSTY WINDS, the
Lake District marathon was abandoned for the first time in its 41-year history.
Many competitors had to be rescued, and even experienced Fell walkers found the
conditions 'extreme'. Indicative of just how much RAINFALL fell in this general
area, at Eskdalemuir (other side of the English / Scottish border), 334 mm
(~204% 1961-1990 average) of rainfall was recorded for this month - possibly a
record for that month.
2. The 28th and 29th were particularly COLD & WINTRY for the time of year
(especially for the early 21st century!), with showery areas of RAIN, HAIL,
SLEET & SNOW moving from the north-west (associated with a shallow low
pressure) during the 28th: there were slight accumulations of SNOW in the
southeast during the evening of the 28th, with 2 to 5 cm reported from the
hillier parts of the Midlands and southern England (7 cm Whipsnade,
Bedfordshire / Philip Eden) and SNOW settled in the London area for the first
time in October since 1934 [possibly applies to a wider area around London
& across the lower elevations of the Home Counties]. Looking at lowland
Britain as a whole, Philip Eden states that this was "quite possibly the
heaviest and most widespread snowfall event . . . in October since 1880".
3. Early hours of the 30th, in the same ex-Arctic airmass that led to the
remarkable snow (see above), a notable HAILSTORM/THUNDERSTORM affected the
Ottery St. Mary area of East Devon. It is estimated that at well over 160 mm of
RAIN/HAIL fell (i.e. melted equivalent) in just three hours (00-03 GMT), with
radar-assisted analysis suggesting 'over 200mm' as a possibility: the large
amount of low-density/small diameter HAIL blocking drains/culverts etc., plus
the amount of torrential rain, led to major FLOODING in the area with severe
impacts on the local community: no lives were lost, but much DAMAGE &
disruption resulted (Ref: 'Weather'/Oct09/Grahame et.al).
2009 (February):
1. The first half of February 2009 was cold & often WINTRY (as part of the
COLDEST winter across the UK for at least 12 years), and some significant
SNOWFALL was experienced, causing traffic disruption, even within central
London. During the night of the 1st/2nd, many eastern, Midland & southern
counties of England experienced SNOW (instability), with heavy/persistent
SNOWFALL affecting London, west Kent, Surrey, West Sussex & Hampshire. Up
to 15 cm lay in central London (road transport dislocated, particularly London
Buses & Ambulance/Fire emergency), and between 20 & 40 cm elsewhere: at
Wisley (Surrey), 41 cm (level) was recorded. Further SNOW fell in various parts
of the country up to the 9th, with another significant event affecting the
southwest peninsula (Devon/Cornwall) overnight 5th/6th: 55 cm of level snow was
reported from Okehampton (Devon). Severe trunk road disruption occurred,
particularly south of Exeter.
2009 (March):
1. Very SUNNY across many parts of the British Isles - one of the four or so
SUNNIEST Marches in the modern instrumental record (~130yr).
2009 (April):
[ according to Philip Eden in the Weather Log (Royal Met.Soc), the southerly
component of the mean surface flow this month was exceeded only seven times in
137 years of records. ]
1. A very WARM month. Although falling outside the 'top-10' of WARMEST Aprils
in the entire CET record, the overall anomaly (w.r.t. 1971-2000) was +1.9C and
there were only five Aprils warmer in the past 100 years.
2. HEAVY RAIN occurred overnight 24th/25th in south Cornwall, with particularly
intense RAINFALL falling around the St.Ives/Zennor area. Estimates using radar
integration suggest that the area west of St. Ives had about 170 mm (within a
24hr period) with a maximum of 193 mm just to the SW of the town. There was
extensive FLOODING in the town where several shops and properties were severely
DAMAGED - other damage was reported along the coast to the west with much
erosion and damage to bridges. Two men and one woman were swept away as they
crossed a swollen, fast-moving stream near Zennor.
2009 (July):
1. This summer month was notably cyclonic, and as a result, RAINFALL was well
above average in almost all areas. It was particularly WET in a broad swathe
from SW England, across Wales, the English Midlands & the North Country
into south-eastern Scotland. Devon, Cornwall, much of southern Wales & most
of northern England had anomalies >300%, locally >400%. New records for
July monthly RAINFALL were set at several points within these latter regions.
According to the Met Office, for the UK as a whole, it was WETTER than both
2007 & 2008 (two notably WET Julys) & the WETTEST July across the UK in
a homogeneous series that began in 1914, but there was an absence of widespread
flooding as the preceding months were not excessively damp. Using the narrower
EWP measure (England & Wales / starts 1766) this July had a similar value
to that of 2007, and ranked outside the 'top-10' of wet Julys. [MetO/NCIC/Eden]
2009 (November): RAINFALL RECORDS TUMBLE - CUMBRIA FLOODS
1. November 2009 was a notably CYCLONIC, and exceptionally WET month. Using the
England & Wales Precipitation series (Met Office/EWP), it ranked fourth
(PROVISIONALLY) for November, being the WETTEST November since 1940. Of more
note, looking at all months, it was (again provisionally) fifth wettest
any-named month in a series that began in 1766. With the exception of NW
Scotland, the west and north Isles, RAINFALL %ages everywhere were >150%,
with >250% around the Solway Firth, northern Pennines/Lake District
(>300% latter) & much of London/SE England. Many long-standing records
were broken, of which the monthly total of 432 mm (~257% of the 1971-2000 LTA)
at Eskdalemuir [Dumfries & Galloway, border Scotland] stands out, as that
station has 100 years of homogeneous records. According to Burt & Eden
('Weather'/March/2010), the month's total of 1430 mm at Styhead, Cumbria for
November 2009 is the highest known (and accepted) any-calendar-month total in
the modern era.
2. Deserving a separate entry, new records for all periods ranging from 24hour
(but NOT the standard 09GMT-09GMT rain-day), to 4 days were set at Seathwaite
Farm, Borrowdale, Cumbria during a prolonged, intense RAINFALL event that began
18/2000 UTC and finally ceased some 34hr later, at 20/0600 UTC. Of note, in the
24hr commencing 19/0000 UTC, Seathwaite Farm collected 316.4 mm of RAIN, and
this now stands as the highest total for ANY 24hr period in the modern
instrumental record (~150 years). [ However, the 24hr 'rainfall day' record
held by Martinstown in July 1955/q.v., still stands ]. This Cumbrian rainfall
was, by any standards exceptional, and although widespread & significant
FLOODING resulted (Cockermouth particularly badly hit), & there was
widespread DAMAGE to property, infrastructure etc., loss of life was limited to
one on-duty policeman directing traffic. [EWP/Eden/Burt .. in particular, see
'Weather'/RMetS/Jan2010]
3. Provisionally, with a value of 8.7degC, it was equal (=1939) 8th WARMEST
November over England & Wales using the CET series; according to the Met
Office, in their series (since 1914) it was third WARMEST across the whole of
England & Wales.
2000-2009 (Decade): WETTEST DECADE IN THE EWP SERIES
1. Using the EWP series maintained by the Met Office, the 'whole' decade
2000-2009 was the WETTEST in that series (began 1766): the 10-year mean was 987
mm, and this figure is comfortably above the previous highest set in the 1870s
(978 mm). The ten years included the third wettest (2000/1233mm/133%) and tenth
wettest (2002/1118mm/121%), and it was the inclusion of the former very wet
year that helped these 10 years stand out. However note that using a 10-year
rolling mean, then the period 1874-1883 is the wettest such period
(q.v). [EWP]
2009/2010 (Winter):'WAKE-UP CALL' WINTER
1. After an unsettled, reasonably mild first-half to December, this turned out
to be the COLDEST winter (December, January & February) since that of
1978/79 for the UK as a whole (and also by the CET series) and since 1962/63
for many parts of Scotland & Ireland; the Met Office stated that the north
of Scotland specifically had its COLDEST winter in the homogeneous record that
started in 1910. The COLD periods were often prolonged (second-half of
December, first-half of January) with harsh FROSTS(**) and frequent
SNOWFALL(***). Given our modern-day reliance of 'just in time' goods delivery
& the long distances people travel to get to work, frequent periods of
disruption resulted.
> The winter's lowest TEMPERATURE of -22.3degC at Altnaharra (Sutherland) on
the morning of the 8th January 2010, was the lowest value (known) since the
winter of 1995/96. Scotland & the north of England were particularly prone
to very low overnight minima, snow and depressed day-time maxima**: large areas
of upland northern England & Scotland had deviation from the 1971-2000
average in excess of -2.5C. (MetO-NCIC/RMet Soc "Weather log"/Eden
& COL)
[ **Many places reported seven consecutive days continuously below freezing
('Ice Days') from the end of the first week of January, and upland sites in
Wales & northern England logged a run of 12 such days. According to Philip
Eden, this run of ICE DAYS was probably the longest in January since 1963.]
2. (***)There were several periods of HEAVY SNOWFALL sufficient to cause major
disruption: in comparison to 35+ years ago, perhaps not 'dramatic', but given
the reliance we have on ease of movement of goods, services and people, what
snow events there were caused mayhem: the principal events were: 17th December
(East Anglia, East Midlands & SE England - Eurostar/Eurotunnel disruption);
21st December (London/Home Counties); 20th-24th December (much of northern
Britain & Northern Ireland); 5th/6th January (Southern England, especially
Wessex & the western Thames Valley) - also eastern Scotland & much of
NE England on these dates; 10th/11th January (far SE England); 11th February
(far SE England) and 18th-22nd (Wales, Midlands, East Anglia & the northern
Home Counties). The amount of SNOW that fell across SE & eastern parts of
Britain was most unusual for modern times - but to someone who lived through
the 1947 or 1962/63 events, not of particular note. And although strictly part
of the climatological 'spring' season, there was a HEAVY SNOWFALL event across
much of Scotland at the end of March with widespread disruption due to wet
snowfall & a strong northerly WIND affecting the public power supply.
2010 (August & September):
1. Adjusting the Heathrow airport SUNSHINE figures from KZS (electronic) to CSR
(sun-burning-card) equivalent, the total value for these two months in this
year was 278 hours. This is well below the 1971-2000 mean (79%), and in the
composite Kew / Heathrow record since 1900, there have been only 21 occasions
(out of 110) when there was less sunshine - and the majority of those events
were pre-smoke control orders of the 1950s & 1960s. (RMetSoc/Weaatherlog
data)
2010 (early/mid - November): VERY MILD FIRST WEEK, THEN SAVAGE
FLOODS IN CORNWALL
1. Notably WARM first week; MAXIMUM TEMPERATURE reached 19.0degC at St James'
Park, central London on the 4th, and the previous night's MINIMUM TEMPERATURE
at Olympic Park (London/Docklands) was just 15.9degC. The next day (5th) the
afternoon MAXIMUM at Yeovilton (Somerset) was 18.4degC. At Heathrow (records
since 1947), the MAXIMUM TEMPERATURE of 18.5degC on the 4th was the highest
November temperature in that record. (WxLog/Eden)
2. 17th: FLOODING along the Fowey river (and some others) in mid-Cornwall;
HEAVY RAIN overnight 16th / 17th across Cornwall - with short-period / high
intensity RAINFALL across the headwaters of the local rivers in this part of
Cornwall ( Mevagissey, St. Austell, Par, Lostwithiel etc.) in the hour up to
06GMT, though the entire event covered the period 17/0400 to 17/0700Z.
Motorists were trapped in cars as FLOOD waters rose to around 2 m in places
with over a hundred homes evacuated. So far(written in 2011), total rainfall
amounts returned are not much above 50 mm, but some higher values are almost
certain given the effect: Philip Eden in 'Weather log' quotes 79 mm at
Restormel. It may be that the nature of the local river system contributed to
the problems, rather than necessarily a very high 'number' of mm in a
particular period.
2010 (late November & December): EXCEPTIONAL WINTRY
CONDITIONS
1. Notable COLD SPELL began in the last week of November and continued well
into December: the COLDER conditions began to be felt around 21st November and
from the 24th of that month it became significantly COLD with northerly, later
persistent easterly winds, and deep cold air aloft: it was to prove the start
of an extended spell of deep cold. FROST during these last few days of November
was very SEVERE at night, with large areas remaining below FREEZING through the
24 hours. The lowest night MINIMUM was -18.0degC at Llysdinam ( near
Llandridnod Wells, Breconshire/Powys ) early on the 28th November, a new record
for Wales for that month. The day MAXIMUM at this location was just -5.6degC.
Philip Eden (WxLog/RMetSoc) stated that "these may well be the lowest
November readings anywhere in England & Wales since 1890".
[ See 3. below for data regarding other events in
December.]
2. During the spell of VERY COLD weather from the 24th November, significant
SNOWFALL affected much of NE England, N. Yorkshire, E, NE & parts of the
central-belt of Scotland (North Sea temperature-driven / deep cold air aloft) -
HEAVY SNOW on most days in these areas at some time or other, with at least 30
cm (un-drifted), and some reports in populated areas of at least 40 cm.
> In addition, during this period, convergence-forced SNOWFALL affected the
far SW of Britain (SW Cornwall / Isles of Scilly), and this was unusual for so
early in the 'winter' season.
> The Met Office have stated that the SNOWFALLS during these last days of
November and first few days of December probably the 'most snowy' period at
this time of year since 1965; always a bit subjective of course!
> The SNOWFALL events continued until mid-December, and particularly around
the 17th and 18th December, there was further HEAVY SNOWFALL in parts of
Scotland, Northern Ireland, Wales and the West Country - extending to much of
the Midlands and SE England.
3. December was an exceptionally COLD month! TEMPERATURES integrated over the
entire UK were around 5degC below the 1971-2000 LTA. The COLDEST December in
over a century & one of the COLDEST calendar months in the past 100 years;
in the CET record [begins 1659] only 21 months of any name beat this
one: using data from the Met Office, much of the English Midlands, Wessex, the
Home Counties around London along with Lincolnshire had an anomaly close to
-6degC!
> Possibly the COLDEST December in the overall Scottish instrumental record
(around 100 years) & only February 1947 (any month) beats this one.
However, for Edinburgh specifically, it was probably the COLDEST December in a
record that began in 1764 (GPE/WxLog/ng).
> In Northern Ireland it was COLDER than February 1947 and the COLDEST month
of any-name for over 100 years (COL). Specifically, in the Armagh Observatory
record (see reference), the mean TEMPERATURE for December was -0.4degC and it
was the COLDEST December since 1878 [that December was also VERY COLD in the
CET record - roughly 4th or 5th COLDEST].
> Using 'rolling' 30-day average values on the CET record (from 1772 only),
the period 28th November to 27 December, 2010 inclusive had a mean TEMPERATURE
of -1.5degC & this is the COLDEST 30-day period as defined occurring at
that time of year; all the others (12 occasions) happened later in the winter.
[CET/'Weather', RMetS, Prior & Kendon]
[ With the depth & persistence of COLD & the notable
SNOWSTORMS outlined above, dislocation / disruption was inevitable. Coming at a
time when the economy was under severe strain (due to the aftermath of the
world banking/credit crisis), these exceptional weather events were most
unwelcome! Road, rail and air traffic was at various times and locations
affected - the Forth road bridge was closed for the first time since it was
opened in 1964 due to heavy snow. 300 passengers were stranded on a train in
Sussex overnight 1st/2nd December and elsewhere, drivers were trapped in their
vehicles. electricity & water supplies were cut, particularly in Scotland
and Northern Ireland ... in Scotland for example, the government minister
responsible for winter preparations was forced to resign after what was
perceived as an inadequate response to the emergency. In the second spell of
severe conditions that began mid-December further severe disruption led to many
thousands of airline passengers being unable to take flights from the major
London airports at the busiest time of the year. Eurostar rail services were
suspended and train services elsewhere (e.g. East Coast main line) were halted
after overhead power lines were damaged or brought down. Compared with
'historic' cold/snowy periods such as 1947 & 1962/63 the 2010 events from a
meteorological standpoint pale - but given modern reliance on ease of transport
for goods & people, this was a very serious event.]
4. SUNSHINE - Significantly above-average December SUNSHINE across much of the
north & west of the British Isles (Northern Ireland & western Scotland
exceptionally SUNNY with record-breaking amounts: Bishopton 69hr/220%,
Eskdalemuir 66hr/206%, Aldergrove 78hr/213%), but large parts of the SE of
Britain, including London/Home Counties & much of Central-Southern England
were often DULL: Heathrow 19hr/40% & Hurn 27hr/53%. (WxLog/RMetSoc)
2010 (Annual):
1. NASA / GISS global temperature figures show that December was COLDEST month
since August 2008. In spite of that, 2010, in this series, was the WARMEST year
on record, narrowly beating 2005 to the top spot. However, there are two other
'global' series, and using one of them, the Met Office / Hadley / CRU dataset,
2010 was (technically) second-WARMEST year, just behind 1998. This warmth is
despite a significantly COLD-ENSO event in progress for much of the year.
2. According to Bob Prichard, writing in the COL bulletin
" two
features stand out. It was widely the quietest year for THUNDER on record (for
over fifty years) in southern England, but the frequency of thunder was much
above normal over much of eastern Scotland." (RJPrichard/COL Bulletin).
2010/2011 (Winter):
1. Winter (December+January+February) SUNSHINE was markedly different as
between the north-west of the British Isles and the south-east.
> It was very SUNNY in Northern Ireland, SW Wales, western-most Scotland and
the far SW of England, with anomalies >135%. For Northern Ireland, it was
the SUNNIEST winter in a series that began in 1929. In the Republic of Ireland,
SUNSHINE was noted as being well-above normal at some southern & western
stations, with 175% of long-term average recorded at Belmullet; here it was the
SUNNIEST winter since the station opened in 1956. [Met Office/NCIC/'Weather'
& Met Eireann]
> By contrast, East Anglia, South-east England and parts of central-southern
England had well below average SUNSHINE, with Greater London and the
immediately surrounding area having <65% of long-term average values. In a
composite series covering climatological regions "Central Southern &
SE England" [starts 1929/30], it was the probably the third (change of
instrumentation remember) DULLEST in that series: the dullest was 1971/72 with
107 h, followed by 1965/66 with 125 h and 2010/11 is credited with 126 h. [Met
Office/NCIC/'Weather'/COL bulletin]
2. The period from late November through December has already been noted
(q.v.), but looking at the three winter months overall (December, January &
February), the 'core' of COLD was located in the western parts of Ulster, much
of southern and central Scotland and across Powys and into Herefordshire. In
these areas, anomalies, despite a MILD February, easily exceeded -1.5degC, with
values >-2degC in parts of central Scotland and west of Northern Ireland. It
is worth emphasising that although the bitter weather of December eased
considerably for much of England & Wales with the arrival of the New Year,
for northern UK, the COLD persisted much longer and caused many infrastructure
& community problems.
2011 (April): A NOTABLY WARM DRY AND SUNNY MONTH!
1. The UK mean TEMPERATURE was 3.7C above the 1971-2000 average, beating the
previous WARMEST set in 2007 [MetO series 1910+]. Daily MAXIMA in particular
were notably above-average, by as much as +6C in SE England & East Anglia.
[MetO/NCIC summary & 'Weather log'/Eden].
The Central England Temperature value (provisional) for this month was
11.8degC; by this measure, April 2011 was the WARMEST such-named month in the
entire record (begins 1659), with an anomaly of +0.6C on the previous record,
set as recently as 2007. (CET)
> The MAXIMUM TEMPERATURE of 27.8degC at Wisley on Saturday 23rd produced
the WARMEST April day across the British Isles since 1949. Elsewhere it was
noted that on this day, the relevant DAY MAXIMA broke local records for April
going back a good deal longer; for example, the maximum temperature in Coventry
reached 26.0degC, making it the hottest April day in the city since 1893
(26.7degC) (uk.sci.weather newsgroup).
2. RAINFALL was notably below-average over all except western Scotland. It was
exceptionally DRY over southern, central and eastern England, where 10% or less
of average rainfall was recorded (5% or less East Anglian fens & Home
Counties around London). Some places in eastern England failed to record 1 mm
of RAIN.
> Using the England & Wales PRECIPITATION series (Hadley/MetO), a value
of 12 mm is recorded (provisional). This represents <20% of the 1971-2000
average, and places this month in the 'top-10' of DRIEST such-named months in
that series. (EWP)
3. It was a SUNNY month across all of the UK, with amounts some 150% (or more:
176% at Eskdalemuir, 168% Woodford & Waddington) of average, and in a
series that starts in 1929, it was the SUNNIEST April. [MetO/NCIC summary]
2011 (May):
1. A deep DEPRESSION (976 mbar) passed close to NW Scotland on the 23rd,
bringing the severest May GALE to Scotland, Northern Ireland and northern
England since 1962 (Eden/RMetS 'Weatherlog'). GUSTS at low-level sites included
70 kn at Inverbervie (Kincardineshire) and 67 kn at Drumalbin (Lanarkshire).
Two people died and 30000 homes were temporarily without power.
2011 (Spring / March to May):
1. Notably WARM & SUNNY across large areas of England, with anomalies >
+2C across central & eastern England; for the UK as a whole, according to
the Met Office, it was the equal-WARMEST spring season (with 2007) in a series
that began in 1910. Of more note, it was the equal-WARMEST spring in the much
longer CET record (1659+) with 1893.
> SUNSHINE was above average almost everywhere for the season as a whole,
with the greatest excesses from Yorkshire south into the Midlands and much of
East Anglia & SE England. Some places in East Anglia & either side of
the Thames Estuary had well over 140% of the long-term mean SUNSHINE.
2. In addition to the consistent warmth, it was also very DRY across large
areas of England & Wales. For many English counties, more especially from
east Yorkshire southward across Lincolnshire, the Fens, East Anglia, London
& the Home Counties, it was the DRIEST spring in the modern record (20% or
less in these latter districts). And, in East Anglia & Kent (according to
the Met Office/NCIC) it was the DRIEST any three-month period with %ages
well under 20%. The extended DRY spell led to DROUGHT conditions in eastern
England. [NB: given the often anticyclonic atmospheric conditions, there was a
significant reduction in RAINFALL across a wide area of central & western
Europe with significant DROUGHT-related impacts.
2011 (Autumn):
1. Remarkably WARM autumn; provisionally, the overall CET was 12.4degC (anomaly
on 1971-2000 series +2.1C), placing this autumn season second in the
1659+ series [warmest 2006/12.6degC q.v.]
> All three months contributed, with October being within the 'top-10'
WARMEST such-named months in that series & November, with a CET=9.6degC
(+2.7C) being the second WARMEST such-named month in that long series; the
'core' of abnormal WARMTH lay across the Fens, much of the east Midlands &
into the northern Home Counties - the overall anomaly these areas around +2.5C.
[CET, MetO/NCIC]
> According to the Met Office/NCIC (published in 'Weather'), the number of
autumn AIR FROSTS was the lowest in the previous 50 years.
('Weather'/RMetSoc/Jan2012)
2. There was a remarkable VERY WARM spell end September / start October across
much of England & Wales, which for a short time also affected much of the
rest of the British Isles. The period covered 26th September to 3rd October,
thought by some to be the WARMEST spread of days at this time of year since
1908 (q.v). The 'peak' by largest area covered was Thursday / Friday 28th/29th
September, with most of the UK enjoying the warmth.
> The 'all-time/all UK' October highest TEMPERATURE (previously set in 1985)
was recorded with 29.9degC the day MAXIMUM at Broadness, near Gravesend and
Swanscombe, both Kent. A new October record for Wales was also set: 28.2degC
was the DAY MAXIMUM at Hawarden (Flintshire), beating a value set as long ago
as 1908.
3. Dry overall for SE parts of the English Midlands, most of East
Anglia/Lincolnshire, the London area & Kent/Sussex. Percentages well under
50% with pockets close to 30%. As these areas also experienced well-below
average RAINFALL earlier in the year, by early December there were serious
concerns over ground-water supply.
4. It was a SUNNIER than average season across much of the eastern half of
England, with 125% or more of average in Norfolk & Suffolk. In marked
contrast, the SW of Scotland fared poorly with overall %ages 75%, and
Eskdalemuir (Dumfries & Galloway) had just 30hr of bright SUNSHINE in
October, less than half average monthly 'normal', the lowest in over a century
of records (Eden/'Weatherlog'/RMetS).
5. (November): Major motorway accident M5/near Taunton in DENSE FOG
(patches)[possibly aggravated and/or triggered by major firework/bonfire event
nearby] evening 4th November, 2011 (around 2030GMT); reports at the time stated
that 7 people were killed and over 50 injured: 34 vehicles of all types were
involved.