Here is a summary of the latest NWP output for noon (GMT) on Friday. Issued
0457z, 27th April 2009.

The weekend will see a low to the NW and a high to the SE. The UK will be
midway between the two, with wind and rain likely for the northt and west.
Further south and east, especially for southern and eastern England, it's
likely to be drier and warmer with only light winds.

ECMWF: http://expert.weatheronline.co.uk/da...mwf/ecmwf.html
SW'lies cover much of the UK, in association with a weak trough over
Scotland. The far south of England lies under a weak ridge. The ridge builds
over England and Wales on day 6, bringing light winds there and with
southerlies elsewhere. On day 7 a ridge builds from the west, with NW'lies
as a result.

MetO: http://expert.weatheronline.co.uk/da...ukmo/pslv.html
England and Wales are covered by a col, with southerlies elsewhere.

GFS: http://expert.weatheronline.co.uk/pslv_frame.htm
The UK lies under SW'lies, with a deep low to the NW. On day 6 a col covers
England and Wales, with SW'lies elsewhere. WSW'lies affect the UK on day 7,
with little overall change.

GEM: http://expert.weatheronline.co.uk/da.../gem/pslv.html
The Canadian run brings a col for England and Wales with SW'lies elsewhere.

JMA: http://www.wzkarten.de/pics/Rjma1201.gif
The Japanese run shows SSW'lies for all, with a low to the WNW.