Here is a summary of the latest NWP output for noon on Wednesday. Issued
0604z, 6/03/05.

The models show a relatively quiet week ahead with high pressure dragging in
less cold air than of late. Towards the weekend the high will retrogress to
Greenland, while a daughter cell will split off and head over Europe. If the
Greenland High can maintain the block then a colder spell looks likely next
weekend (GFS), but if an Atlantic low manages to move NE'wards between the
highs much milder weather is likely (DWD). As ever, more runs are needed.

ECMWF: http://64.246.48.81/pics/Recm1201.gif
High pressure extends from Greenland to southern England and France, with a
low to the east of Iceland. This leads to westerlies for all, followed by
further westerlies as the low deepens and sinks SE'wards at T+144. By T+168
the low deepens over southern Norway, bringing cold northerlies and NW'lies
for the UK.

MetO: http://www.wetterzentrale.de/pics/Rukm1201.html
The Met Office run also shows westerlies with a ridge to the south and a
trough to the north. The trough sinks southwards over the UK at T+144,
introducing cold northerles for Scotland with westerlies elsewhere.

GFS: http://expert.weatheronline.co.uk/pslv_frame.htm
High pressure covers France, leading to WNW'lies for all. 850hPa
temperatures vary from -5C over northern England and Northern Ireland to -3C
over the Highlands. The winds become NNW'lies and NW'lies at T+144 due to a
low over southern Norway, followed by stronger, colder NNW'lies at T+168.
Day 8 sees a trough bringing NW'lies and NNW'lies for the UK, with NW'lies
on day 9 as a ridge moves over the Irish Sea. By day 10 the ridge builds to
the SE, leading to southerlies and westerlies for the UK.
Ensembles: http://64.246.48.81/pics/MT8_London_ens.png
The ensembles show 850hPa temperatures for London averaging -5C from the 8th
to the 12th March, albeit with a degree or two variation depending on the
run. There's good agreement of a colder couple of days for Sunday and
Monday, before the runs start to diverge - some bring in much milder air
(including the operational), while others maintain the status quo for
another few days.

GEM: http://www.meteocentre.com/models/glb00_120.html
The UK lies under a westerly flow, with a similar setup to the other runs;
low pressure lies to the west of Norway. The low sinks SE'wards at T+144,
bringing with it some colder northerlies and westerlies. There's little
change at T+168 with the low moving slowly SE'wards over the North Sea -
cold northerlies and westerlies continue to affect the UK.

GME/DWD:
http://www.wetter.com/home/img/sat/g...060000_120.gif
High pressure is centred over the Alps, leading to westerlies for all. The
winds become westerlies and SW'lies with lows to the north and SW at T+144.
By T+168 the lows merge over the North Sea, leading to northerlies and
NE'lies.

JMA: http://www.wetterzentrale.de/pics/Rjma1201.html
The Japanese run shows high pressure to the west with a ridge across England
and Wales bringing light winds there. Elsewhere, winds are moderate
WNW'lies. The winds become NNW'lies and NW'lies as the high retrogresses at
T+144, followed by more of the same on day 7. By day 8 high pressure covers
France, with southerlies and westerlies for the UK.

NOGAPS: http://wetterzentrale.com/pics/Rngp1201.gif
Ireland lies under a ridge between a high over France and a high south of
Greenland. This leads to northerlies and westerlies for much of the UK,
followed by southerlies and SW'lies from a low over the Faroe Islands at
T+144.

KMA: http://www.kma.go.kr/kma03/gif/g21nh_smsr_120.gif
Unavailable today.