The AVERAGE PRESSURE CHART for the period 11th to 20th November 2003
shows a general improvement in the weather than over the previous 10
days. In this new period, the Azores HP has formed a ridge over
Britain and a HP centre sits over S Ireland and stretches up to
Scotland. LP is centred well off SW and W Ireland and a second small
centre can be found near central France. This is a time for mist and
fog early and late During the day a much drier period for almost the
whole country, but sunny spells will depend on local conditions.
Temperatures will generally be warmer in the W and relatively cooler in
the SE. Night frost will happen pretty often during the anticyclonic
period. .

As these average conditions won't be in charge the whole time, it's
better to have a look at the next ten days in more detail.


On 11th November, a large, complex LP is centred to the SW and W of the
British Isles with a second centre to the NW of the country. The
nearest HP is over the continent.Weather will most probably be windy and
rainy over most places, especially in the W.

On 12th November, LP has now moved to the N and NW of Scotland, while a
HP bridge has moved E into the Biscay area and onwards to Poland. The
bridge is expected to strengthen over the SW of the country Showers
will be observed in the NW of Scotland but the S half of the country
will be dryer and this will spread northwards during the day. Some fog
is likely during the evening with chance of night frost.

On 13th November, the nearest LP is much to the W of Ireland. A second
LP is to be found over Denmark. HP stretches from the Azores to cover
Britain from S to N. Some of this HP also extends across Biscay to SW
Germany. Weather will be fine and dry over most areas with some
night-frost and fog, early and late.

On 14th November, a NW airstream flows over the country as pressure
rises to the W of Ireland Embedded waves in the airstream bring rain
showers to the W of Scotland and also SE England. Temperatures will
not rise much after the fog and frost during the night. Some places will
be fine and dry.

On 15th November, a HP centre sits over SE England covering E, SE, S
and SW areas. An Atlantic depression with a possible secondary on its
southern flank, lying WNW of Scotland, moves in the direction of S
Iceland. The weather will be generally fine and dry with fog and frost
early and late, but in W and NW Scotland, weather will deteriorate
during the day.
..
On 16th November, a depression lies to the SW of Iceland with a trough
stretching SE'wards into SE England. HP moves across S England from the
SW bringing dryer weather to the extreme S. Otherwise, most areas will
have rain showers.

On 17th November, a bridge of HP covers southern areas while a
depression moves E from a position NNW of Scotland.. Dryer in the
south and showers in the north.

On 18th November, conditions remain almost the same as yesterday. LP
off the N of Scotland, weak HP to the south. A LP out in the Atlantic
is moving towards Britain. Weather conditions have not changed much
since yesterday.

On 19th November,pressure builds up over the continent and warm air
starts to move NE'wards over France. A LP has moved to the W of
Ireland and a forward trough has come into W Scotland. To the south of
the depression a secondary LP has formed and is moving E or ENE
towards SW England. Showery weather in the W of Britain will move
E'wards.

On 20th November, a depression lies to the W of Scotland with a trough
southwards over Ireland to a secondary depression to the SW of
England. There may be some strong winds attached to the secondary
depression as it moves E'wards over southern counties. Blustery showers
over westerm areas spread E across the country Dryers weather moves
into SW districts later.

So that's it. An interlude of dryer weather for this ten day period
with the autumnal frost and fog.

Cheers, Keith