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| February 2002 monthly assessment issued
4/3/2002 |
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Monthly summaries available for: England
and Wales | Scotland | Northern
Ireland
Homogenous time series based upon selected station data:
CET | England and Wales
rainfall
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| Very mild, wet and windy especially
in the north-west. Sunnier in the south-east. |
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Diary of highlights
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1st - 4th A deep complex low pressure centred
between Iceland and Scotland brought very unsettled, wet
and windy weather. Bands of rain and showers, often
heavy with occasional thunder, swept across the region.
The very mild temperatures, were offset by frequent
gales especially around coasts (a gust of 79 knots was
recorded at Capel Curig/North Wales on the
1st).
5th - 13th Depressions passing to
the north and north-west of the UK continued to bring
very mild unsettled conditions with periods of rain and
showers at times, as more Atlantic fronts traversed the
UK. Some of the showers had thunder mixed in, however
the sun shone in between, with the south-east benefiting
the most. On the 10th very heavy rain affected
north-west areas with Capel Curig being deluged by
121 mm of rain in 24 hours causing local flooding.
The low pressure moved to Finland by the 12th, allowing
pressure to rise over the UK.
14th - 18th
An anticyclone over the region provided a temporary
respite from the wind and rain. Mainly quiet, dry, sunny
weather prevailed but with overnight frost, the
temperature falling to -6.2 °C at Benson in
Oxfordshire early on the 15th. During the 17th and 18th
a weak cold front moved south-east.
19th -
23rd Wet and windy conditions soon returned as
active lows moved east to Denmark during the 19th and
20th. By the 22nd/23rd a deep depression over
Scandinavia brought more strong winds and showers some
of which were accompanied by hail and thunder. Strong
winds affected the Vale of York on the 22nd with a gust
of 67 knots at Leeds. It was very mild in the south at
first, Folkestone in Kent reaching 15.1 °C on the 22nd.
Precipitation turned wintry in the north and north-east
later on the 23rd, with snow showers down to East
Anglia.
24th - 28th Frequent snow showers
over northern England left a wintry landscape by the
morning of the 24th with 5 to 10 cm of snow on high
ground. However the snow was soon washed away on the
25th as a vigorous low tracked eastwards across Scotland
overnight the 25th/26th. There were more gales and
heavy rain in many areas especially the north-west, the
rain turned showery later with some hail and thunder
mixed in. Gusts over 70 knots were frequent in north
Wales, while eastern counties of England had gusts up to
65 knots. A residual trough over Scotland on the 27th
migrated slowly southwards perpetuating the showery
regime. A number of places had hail and thunder
especially along the English Channel coast.
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| Statistical details (using best available
data/estimates): updated 2003 |
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England & Wales Mean Temperature Series ( series
began in 1961 ). The final value for the month was 6.6 °C, which
is 3.2 °C above the 1961-1990 average, which is in the exceptionally above average category. 3rd warmest in the series, warmest being 1990 with 7.0 °C.
England & Wales Rainfall Series (series began
in 1961). The final total for the month was 140.7 mm, which is 218% of the
1961-1990 average, which is in the exceptionally above average category.
Joint wettest in the series with 1990.
England & Wales Sunshine Series (series began
in 1961). The final total for the month was 75.3 hours, which is 115%
of the 1961-1990 average, which is in the above average
category.
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| Scotland |
| Cyclonic westerly, with plenty of
rain in the west. |
| Diary of Highlights |
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A disturbed weather pattern affected Scotland for
almost the whole of February, with a succession of deep
depressions passing close by and driving active fronts
across the country. A feature of the month was that the
axis of low pressure extended from the Atlantic into the
Norwegian Sea, so that winds were westerly rather than
south-westerly. The jet stream lay to the south of
Scotland for much of the time, so that although there
was plenty of rain, the most stormy weather often
crossed England rather than Scotland.
An
interlude of quiet anticyclonic weather in mid-month
separated two long spells of disturbed weather. During
the second spell, winds were often north-westerly and it
was cold enough for snow to descend to low levels at
times.
The first period of disturbed weather
brought several wet days, especially the 1st, 8th, 10th
and 11th, with more showery conditions on the other
days. Stornoway experienced a gust of 77 knots on the
1st.
The mid-month weather window lasted from
the 13th to the 17th and started with clear, cold air
and the temperature dropping to -7.6 °C at
Corgarff. Milder air spread around the top of the high
to allow the temperature to approach 13 °C at
Lochcarron on the 15th and Fyvie Castle on the 16th.
The return to cyclonic conditions with periods
of heavy rain was emphatic, with 50 mm recorded at
Sloy on the 19th and 87 mm at Dalmally on the 21st.
The most wintry period of the month lasted from
the 22nd to the 24th, with north-westerly gales driving
frequent snow showers across the country on the 22nd.
Eskdalemuir reported 16 cm of snow on the ground and
drifting snow closed roads in Caithness. A drop in the
wind on the 24th allowed the temperature to fall to
-13.2 °C at Kinbrace.
The last few days
continued unsettled, with further outbreaks of rain or
showers, and snow on high ground.
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Statistical details (using
best available data/estimates): updated 2003
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Scotland Mean Temperature Series (series began in 1961). The final value for the month was 3.6 °C, which
is 1.6 °C above the 1961-1990 average, which is in the well above average category.
Scotland Rainfall Series ( series began in 1961
). The final total for the month was 243.2 mm, which is 231 % of the
1961-1990 average, which is in the exceptionally above average category. 3rd wettest in the series, wettest being 1990 with 276.8 mm.
Scotland Sunshine Series (series began in 1961). The final total for the month was 53.9 hours, which is 84%
of the 1961-1990 average, which is in the below average
category.
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| Northern
Ireland |
| Wet, but mild and sunny. This was a wet February month
across all areas of the province. Conditions were however also
bright with above average sunshine in all but north-western
parts. The month as a whole proved mild, however a cold spell
at the end of the month brought snow and wintry showers to all
areas. |
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Diary of Highlights
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1st to 2nd Mild, but unsettled,
with rain or showers and spells of sunshine.
3rd to 4th Cold, with snow in western and
northern parts on 3rd. Much milder, but dull and wet on
4th.
5th to 10th Unsettled. Good spells of sunshine
between showers, gave sunny days on the 6th and 7th.
Dull and very wet with thunderstorms in many parts on
8th. Very mild on 7th, 8th and 10th with daily
temperatures reaching maximum values typically between
11 °C and 14 °C.
11th to 17th Largely dry, mild and bright,
with only scattered showers in some locations on 11th,
12th, 16th and 17th. Plentiful sunshine was recorded
across the province from the 11th to the 14th, however
the 16th proved dull in all areas.
18th to 28th Further unsettled and often windy
weather, with bands of rain followed by scattered
showers and sunny spells. Gales and thunderstorms were
recorded on the 20th, while cold snaps brought snow and
wintry showers to all areas on the 22nd/23rd and from
the 26th to the 28th.
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Statistical details (using
best available data/estimates): updated 2003
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Northern Ireland Mean Temperature Series (series
began in 1961). The final value for the month was 5.6 °C, which
is 1.9 °C above the 1961-1990 average, which is in the well above average category.
Northern Ireland Rainfall Series (series began
in 1961). The final total for the month was 164.9 mm, which is 204% of the
1961-1990 average, which is in the exceptionally above average category. 2nd wettest in series, wettest being 1990 with 193.4 mm.
Northern Ireland Sunshine Series (series began
in 1961). The final total for the month was 69.7 hours, which is 109%
of the 1961-1990 average, which is in the close to average
category.
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Homogeneous series based upon selected station data: updated
2003 |
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Central England Temperature (series begins in 1659). The mean value for the month was 7.0 °C
which is 3.2 °C above the 1961-90 normal of 3.8 °C and
is in the exceptionally above average category. Others: 2001/4.4,
2000/6.3, 1999/5.3, 1998/7.3 °C.
England and Wales Rainfall (series begins in 1766). The total for the month was 115.1 mm, which is 177
% of the 1961-90 average and is in the exceptionally above average
category. Others: 2001/105.3, 2000/95.1, 1999/50.0, 1998/20.4,
1990/143.2 mm.
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| Note: Diary values are provisional based
on data available at the time. |
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