Here is a summary of the latest NWP output for noon (GMT) on Friday. Issued
0505z, 17th August 2009.

The end of the week will see a trough or low close to western areas. This
feature will move swiftly NE'wards on Saturday, bringing rain to Scotland,
Northern Ireland and possibly Wales. Most of England will stay largely dry,
however, and by the end of the weekend warm southerlies are likely to cover
the UK ahead of the next low.

ECMWF: http://www.wzkarten.de/pics/Recm1201.gif
A secondary low lies to the west, resulting in SW'lies for all. On day 6 the
low lies over the North Sea, having crossed Scotland. Westerlies affect the
UK, followed by strong southerlies on day 7 as another low deepens to the
WNW.

MetO: http://www.wzkarten.de/pics/Rukm1201.gif
The UK lies under SW'lies, with a low to the north and a trough to the west.

GFS: http://www.wzkarten.de/pics/Rtavn1201.png
A trough covers Wales, bringing SE'lies to England and a col over Northern
Ireland. Elsewhere winds are SSW'lies. Southerlies affect all areas on day
6, with a low to the NW. The low fills on day 7 and SSE'lies cover the UK.

GEM: http://www.wzkarten.de/pics/Rgem1201.gif
The Canadian run brings a weak ridge and SW'lies.

JMA: http://www.wzkarten.de/pics/Rjma1201.gif
The Japanese run is similar to GEM, with a weak ridge over the UK. This time
winds are a mixture of westerly and WSW'ly.