Note: I've to leave early today - hence this is a shorter analysis. Normal 
service will be resumed tomorrow morning.

Here is a summary of the latest NWP output for noon (GMT) on Friday. Issued 
0455z, 8th September 2008.

A col will affect the UK over the weekend. Rain, in the form of showers, is 
likely almost anywhere.

ECMWF: http://85.214.49.20/wz/pics/Recm1201.gif
An upper low covers the UK, with surface WSW'lies and a weak trough. On day 
6 a ridge moves over England and Wales, with southerlies elsewhere. The 
winds become SSW'lies for Scotland and Northern Ireland on day 7 and a ridge 
persists over England and Wales.

MetO: http://expert.weatheronline.co.uk/daten/profi/en/ukmo/pslv.html
MetO has a col for the UK. The col persists on day 6.

GFS: http://85.214.49.20/wz/pics/Rtavn1201.png
Low pressure covers the English Channel, leading to northerlies for England 
and Wales. Scotland and Northern Ireland lie under a col. The col moves 
SE'wards on day 6 and by day 7 much of the UK lies under a col, with light 
winds for all.

GEM: http://expert.weatheronline.co.uk/daten/profi/en/gem/pslv.html
The Canadian run shows a trough and westerlies over the UK.

JMA: http://85.214.49.20/pics/Rjma1201.gif
The Japanese run brings a trough over England and Wales (with easterlies) 
and light winds elsewhere due to a col.