Here is a summary of the NWP output for noon on Thursday.
Issued 0618, 1st November 2009

The end of the working week will see a mobile flow over the UK, with low
pressure initially close by and rain for all. A weak ridge will bring a
respite for part of the weekend, before further wind and rain arrives the
following week.

Analysis and evolution to T+120 via GFS
Southerlies cover the UK, ahead of a low to the SW. The low deepens as it
crosses the UK and by tomorrow it lies to the ENE of Scotland, with WSW'lies
for the UK. Tuesday sees SW'lies ahead of a trough and on Wednesday a low
lies to the NW, with further SW'lies.

T+120 synopsis
http://91.121.93.17/pics/Rtavn12014.png /
http://91.121.93.17/pics/Rtavn1201.png
http://91.121.93.17/pics/Rukm1201.gif
http://91.121.93.17/pics/Recm1201.gif /
http://www.meteociel.fr/modeles/nogapse_cartes.php
The jetstream chart shows a strong jet over the North Atlantic with a ridge
to the west of the UK. At the 500hPa level there's an upper low over the
North Sea, while ECM places an upper low north of the UK instead. MetO has
upper westerlies and a deep low to the WNW, GEM has an upper low over
Scotland and JMA brings a weak upper low over the North Sea.
At the surface, GFS brings northerlies due to a low to the east. ECM has
westerlies with a low over the Northern Isles, while MetO beings a weak
ridge and WSW'lies. GEM has westerlies too, with a low over northern
Scotland, while JMA shows a low over the North Sea. This leads to easterlies
for Scotland and westerlies elsewhere.

Evolution to T+168
ECM brings SW'lies on day 6 as a trough approaches from the west. The winds
increase to near gale force on day 7 as a low fills to the NW.
GFS has a weak ridge on day 6, with NW'lies for eastern areas and SW'lies
for Wales, Northern Ireland and western Scotland. On day 7 a trough lies to
the east and westerlies cover the UK.

Looking further afield
ECM shows westerlies and WNW'lies on day 6 due to a low to the east and a
ridge to the west. Strong SW'lies cover the UK on day 9 as a trough
approaches from the west and on day 10 the winds become strong WSW'lies as
the trough moves swiftly eastwards.
Day 8 with GFS shows a weak ridge and westerlies, with stronger westerlies
as a low crosses Scotland on day 9. The low fills to the east on day 10,
with NW'lies for the UK.

Ensemble analysis
(http://91.121.94.83/modeles/gens/gra...ille=Lond res)
The ensembles continue to show a generally cool and wet outlook.