Here is a summary of the NWP output for noon (GMT) on Sunday.
Issued 0509z, 13th August 2008

The beginning of next week looks to be unsettled for all, with low pressure
close by and temperatures at or below average. By midweek the models split,
with GFS keeping the unsettled theme going and ECM bringing a weak ridge and
thus warmer and more settled conditions.

Analysis and evolution to T+120 via GFS
http://85.214.49.20/pics/Rtavn001.png
Low pressure covers southern Scotland and Northern Ireland. Winds are
NE'lies for northern Scotland and SW'lies across England and Wales. Tomorrow
a trough covers Scotland and Northern Ireland, with SW'lies elsewhere. A col
covers much of the UK on Friday and the col persists on Saturday.

T+120 synopsis
http://85.214.49.20/pics/Rtavn12014.png /
http://85.214.49.20/pics/Rtavn1201.png
http://85.214.49.20/pics/Rukm1201.gif
http://85.214.49.20/pics/Recm1201.gif /
http://www.meteociel.fr/modeles/nogapse_cartes.php
The jetstream chart still shows a southerly tracking jet across the North
Atlantic, with the jet heading eastwards over Iberia and the western
Mediterranean. At the 500hPa level theres an upper col, with a trough to the
west. MetO also has a trough to the west, while ECM has a weak trough over
Scotland. GEM brings an upper low over the UK.
At the surface GFS shows a shallow low over the UK, with light SW'lies for
England and Wales and easterlies or NE'lies elsewhere. MetO brings a shallow
trough over the UK and has light winds for all. ECM shows a trough over
Scotland, bringing SE'lies to the far north and SW'lies for most of the UK.
GEM has a low over the Irish Sea, leading to ENE'lies for Scotland and
Northern Ireland with WSW'lies for much of England and Wales.

Evolution to T+168
Day 6 with ECM brings low pressure over East Anglia, with strong to gale
force WSW'lies for southern and SE England. Elsewhere winds are lighter
WNW'lies. On day 7 a ridge approaches from the west, leading to WNW'lies.
Low pressure covers the southern North Sea on day 6 with GFS, leading to
NE'lies for Scotland and Northern Ireland with NW'lies for England and
Wales. The winds become westerlies on day 7 as low pressure moves northwrds.

Looking further afield
On day 8 with ECM WSW'lies associated with a ridge cover the UK. On day 9
winds become SW'lies for all as a trough approaches from the west, followed
by by further SW'lies on day 10.
A trough covers the Scottish border on day 8 with GFS, leading to SW'lies to
the south and strong northerlies for both Scotland and Northern Ireland. On
day 9 northerlies affect all areas, as low pressure fills over Belgium. Day
10 sees a weak ridge move down from the NW, with further northerlies.

Ensemble analysis
(http://91.121.94.83/modeles/gens/gra...ille=Lond res)
The ensembles continue to paint a cool picture for the forseeable future.