Here is a summary of the latest NWP output for 12z on Thursday. Issued
0550z, 30/05/05.

The runs are mixed, with some suggesting high pressure building on the near
Continent to bring SW'lies and a NW/SE split. Other runs show a less settled
picture with rain almost anywhere, as low pressure remains close to the UK.
As ever, more runs are needed.

ECMWF: http://64.246.48.81/pics/Recm1201.gif
Low pressure lies to the west of Ireland, bringing southerlies and SE'lies.
By T+144 it moves swiftly eastwards, leaving a trough over the UK. Scotland
lies under easterlies, with northerlies and ENE'lies elsewhere. A col covers
much of the UK on day 7, although southern England is affected by westerlies
from a high over Biscay.

MetO: http://www.wetterzentrale.de/pics/Rukm1201.html
The Met Office chart shows lows to the NW, ENE and well to the SW, with high
pressure over Biscay and western France. Westerlies cover the UK as a
result, followed by SW'lies at T+144 as the latter low fills to the west of
Ireland.

GFS: http://expert.weatheronline.co.uk/pslv_frame.htm
A deep low lies to the north, with SW'lies across the UK. 850hPa
temperatures vary from +1C over eastern England to +4C over Cornwall and the
Western Isles. A shallow low to the west of Scotland results in further
SW'lies at T+144, with yet more SW'lies as a ridge builds over England and
Wales on day 7. By day 8 a ridge from the Azores High covers the UK, with
NW'lies and northerlies, followed by WSW'lies for most on day 9 as the ridge
sinks southwards. Day 10 sees the ridge move northwards again, with
northerlies for southern areas and westerlies elsewhere.
Ensembles: http://217.160.75.104/pics/MT8_London_ens.png
The London ensembles show 850hPa temperatures rising steadily from noon
today until the 3rd. Thereafter the mean drops to within 3 degrees of the
mean until the end of the run, with the operational run being a warm outlier
by the end of the run. There's not much rain on the chart, although there
are peaks on the 3rd and 5th June.

GEM: http://www.meteocentre.com/models/glb00_120.html
The Canadian run shows a deep low to the NW with WSW'lies and SW'lies across
the UK. The low fills to the north at T+144 with lighter westerlies for the
UK.

GME/DWD:
http://www.wetter.com/home/img/sat/g...300000_120.gif
Westerlies and SW'lies are affecting the UK due to a trough over Scotland.
By T+144 the trough moves away to the NE, leaving westerlies for all.

JMA: http://www.wetterzentrale.de/pics/Rjma1201.html
A trough covers northern Scotland with WSW'lies for all. There's little
change at T+144, although winds become slightly lighter as the trough fills.

NOGAPS: http://wetterzentrale.com/pics/Rngp1201.gif
The UK lies under SW'lies with a deep low to the west. The low fills as it
moves ENE'wards at T+144 and a secondary low spawns over the North Sea. This
leads to SW'lies for Scotland and Northern Ireland, with WNW'lies elsewhere.

KMA: http://www.kma.go.kr/kma03/gif/g21nh_smsr_120.gif
The UK lies under a trough from a low to the NW, resulting in westerlies for
England and Wales, with southerlies or SW'lies elsewhere.