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| November 2002 monthly assessment issued 2 December
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 unsettled, wet and mild.
Record rainfall with flooding in some southern and
south-western areas. |
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Diary of highlights
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1st to 2nd A mild but very wet and windy start
to the month as fronts moved north-east across the
region. The rain was heavy at times with hill and
coastal fog in the south-west.
3rd to 4th Mainly mild and dry after some
scattered showers at first, some were accompanied by
thunder.
5th to 10th Atlantic depressions passing by
brought wet and windy weather but it was mild or very
mild, 17.2 °C being recorded at Saunton Sands,
Devon on the 5th. There were periods of rain and
showers, heavy at times, with thunder. Later a small low
moved eastwards over northern parts bringing more wind
and rain. The 9th gave a dry interlude before rain
spread in during the evening, preceding another mild day
with rain at times on the 10th.
11th to 14th A north Atlantic low brought
bands of rain and secondary depressions to the region.
There was widespread heavy rain often thundery
especially in southern and western areas. During the
13th/14th a secondary low migrated northwards from
Biscay touching 965 hPa. There was 80 mm overnight
in Penzance with severe flooding there and in St Ives,
where cars were washed away. Much of Devon and Cornwall
had heavy thundery rain with many roads impassable due
to flooding. A gust of 64 knots was recorded at
Portland.
15th to 20th Rather unsettled with rain at
times. A low centre to the south on the 15/16th brought
rain and thundery showers to many places especially to
southern areas. A quieter interlude from the 17th to the
18th allowed fog and overnight frost to develop, with
Redesdale in Northumberland falling to -3.1 °C. The fog
was slow to clear from the Midlands and East Anglia.
Rain edged slowly into the west on the 19th and 20th.
21st to 24th With low pressure west of Ireland
, more bands of rain and showers affected the region,
some were heavy and thundery especially in the south
during the 23rd and 24th. Mostly mild, flooding again
affected the south-west.
25th to 26th A mainly dry, quiet interlude but
with fairly extensive mist and fog slow to clear in
places. Some scattered showers broke out from time to
time in extreme southern and western areas.
27th to 30th Unsettled and mostly wet again.
Atlantic fronts brought yet more rain to south and
south-western areas during the 27th and 28th with
showers turning thundery in many places later. Cornwall
saw widespread flooding with some main roads closed.
After a brief foggy respite on the 29th more wet weather
spread in from the south-west on the 30th. Central
London had its wettest November since 1940, while
Milford Haven (south-west Wales) received 372 mm, a
record for November from 1964. Birmingham had its first
air frost free November since
1946.
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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 8.2 °C, which
is 2.1 °C above the 1961-1990 average, which is in the exceptionally above average category. 2nd warmest in series, warmest being 1994 with 9.5 °C.
England & Wales Rainfall Series ( series began
in 1961 ). The final total for the month was 154.1 mm, which is 168 % of the
1961-1990 average, which is in the exceptionally above average category.
England & Wales Sunshine Series ( series began
in 1961 ). The final total for the month was 55.2 hours, which is 87 %
of the 1961-1990 average, which is in the below average
category.
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| Scotland |
| Mild, and very wet over the
east. |
| Diary of Highlights |
A large area of low pressure lay to the west of the
British Isles for most of November, and winds with a
southerly component brought mild and often wet weather.
Winds across Scotland frequently blew from the
south-east, causing the east of Scotland to receive some
heavy falls of rain while the north-west was relatively
dry.
The first five days were particularly mild as the low
pressure was located to the south of Iceland and south
or south-westerly winds covered Scotland. The
temperature stayed above 10 °C all night at Stornoway on
the 3rd and rose to 14.6 °C at Aboyne on the 5th. Rain
and showers were frequent and gusts reached 76 knots. at
Sella Ness on the 3rd.
A colder, showery westerly airstream covered Scotland
on the 6th, and as the next major weather system was
slow to arrive, the weather quietened down for a while.
Fronts finally pushed across the country early on the
10th to bring another spell of south-easterly winds with
showers or longer periods of rain.
On the 14th and 15th a depression moved north up the
eastern seaboard of Scotland to bring a period of heavy
rain to the east, with 31 mm at Charterhall on the 14th
and 44 mm at Kinloss on the 15th. This gave rise to
severe flooding at Elgin. A weak ridge of high pressure
followed, bringing a fine day to the whole country on
the 17th. It was cold at night with the temperature
falling to -6.8 °C at Kinbrace.
For the next few days the wind blew from the
south-east, and at first it was mainly dry. Fronts then
brought heavy rain to the east, with 36 mm at Dyce on
the 20th and 37 mm at Enochdhu the next day.
The weather became benign from the 22nd to 24th, with
broken cloud and just a few showers.
From the 25th onwards, low pressure in the Atlantic
pushed a succession of fronts across the country,
bringing mild and wet weather.
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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 6.2 °C, which
is 1.9 ° C above the 1961-1990 average, which is in the well above average category. 3rd warmest in series, warmest being 1994 with 7.5 °C.
Scotland Rainfall Series ( series began in 1961
). The final total for the month was 174.6 mm, which is 111 % of the
1961-1990 average, which is in the close to average category.
Scotland Sunshine Series ( series began in 1961
). The final total for the month was 38.9 hours, which is 81 %
of the 1961-1990 average, which is in the below average
category.
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| Northern
Ireland |
| Mild but very wet. |
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Diary of Highlights
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It has been a very unsettled November month across
Northern Ireland. Rainfall values recorded have been
well above average, while temperatures have been mild
throughout the province. Overall sunshine duration has
been slightly below normal for this time of year.
1st to 4th This was a very mild period across
the province. All regions recorded daytime maximum
values in double figures throughout the period with many
areas recording over 14 °C on the 2nd. Heavy rain plus
some heavy downpours were recorded on the 1st and 2nd
while more showery precipitation occurred on the 3rd and
4th. It was sunny on the 3rd while little or no sunshine
was recorded anywhere on the 1st, 2nd and 4th.
5th to 10th Although another mild spell,
a succession of Atlantic depressions and weather fronts
brought more unsettled conditions. Bands of rain with
some heavy downpours effected most days. The 9th and
10th were dry throughout the day, though rain did spread
into the province during the evening of the 9th. The
sunniest period of the month in many locations occurred
over the 6th and 7th.
11th to 14th Low pressure systems mainly from
the north-west dominated the weather conditions over
this period. Temperatures were around normal with the
first ground frosts of the month recorded in some areas
on the 13th and 14th. Although the 11th and 12th were
mostly dry, heavy rain was recorded on the 13th and 14th
especially in the east causing localised flooding in
many areas. It was a sunny period though no sunshine was
recorded on the 14th.
15th to 20th Temperatures were around or
slightly above normal, though some western areas
recorded ground frost on the 17th and 18th. It was
mostly dry between the 15th and 17th, while heavy rain
with some heavy downpours were recorded between the 19th
and 20th causing localised flooding in some areas.
21st to 26th A mild but dull and unsettled
period, with bands of heavy rain and showers occurring
on all days except for the 25th. Many areas in the east
of the province recorded around 10 mm or more of
rainfall on the 21st, 23rd and 26th
27th to 30th Mild, wet and dull across the
province, though the 28th in most places was fairly dry
with some sunny spells. It was exceptionally mild during
the overnight period of the 26th/27th. Fog was
widespread on the 29th.
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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 7.8 °C, which
is 2.0 °C above the 1961-1990 average, which is in the exceptionally above average category.
Northern Ireland Rainfall Series ( series began
in 1961 ). The final total for the month was 192.0 mm, which is 179 % of the
1961-1990 average, which is in the exceptionally above average category. Wettest in series, previous wettest 1963 with 184.2 mm.
Northern Ireland Sunshine Series ( series began
in 1961 ). The final total for the month was 46.3 hours, which is 82 %
of the 1961-1990 average, which is in the below 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 initial mean value for the month was 8.5 °C which is
2.0 °C above the 1961-90 normal of 6.5 °C and is in the
well above average category. Others:- 2001/7.5, 2000/7.0,
1999/7.9, 1998/6.2, 1997/8.4 °C, 1994/10.1 °C.
England and Wales Rainfall (series begins in 1766).
The total for the month so far is 176.2 mm, which is 191 % of the
1961-90 average and is in the exceptionally above average
category. Others:- 2001/65.0, 2000/182.1, 1999/67.3, 1998/89.3,
1997/123.4, 1989/62.7 mm.
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| Note: Diary values are provisional based
on data available at the time. |
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