Here is a summary of the latest NWP output for noon on Wednesday. Issued
0552z, 26/02/05.

The models show good agreement of a northerly spell towards the end of next
week, with snow mainly (but not exclusively) for high ground and at lower
levels in the north. For the weekend a ridge looks like toppling over the
UK, bringing sharp frosts if the skies are clear. Beyond that less cold air
looks like affecting the UK, although it would still be cold enough for snow
over high ground.

ECMWF: http://64.246.48.81/pics/Recm1201.gif
A large high lies to the SW of Iceland and low pressure over the North Sea.
This leads to moderate northerlies across the UK, followed by NE'lies as the
low sinks southwards and a ridge topples over Scotland. The ridge sinks
southwards at T+168, bringing NNW'lies and NW'lies to much of the UK.

MetO: http://www.wetterzentrale.de/pics/Rukm1201.html
The MetO run shows strong northerlies over the UK due to a low over the
Netherlands. A ridge moves SE'wards over the UK on day 6, bringing NW'lies
and NNW'lies.

GFS: http://expert.weatheronline.co.uk/pslv_frame.htm
NE'lies cover the UK due to a ridge over Scotland and low pressure over
Biscay. 850hPa temperatures vary from -9C over northern Scotland to -7C over
much of England and Wales. The ridge sinks over England and Wales at T+144,
bringing ENE'lies for southern England and westerlies for Scotland and
Northern Ireland. Lighter, less cold northerlies affect the UK on day 7 with
a high persisting to the west. A ridge sinks over the UK on day 8 to bring
NW'lies, followed by more of the same on day 9. There's no change on day 10,
with NW'lies for all.
Ensembles: http://64.246.48.81/pics/MT8_London_ens.png
The ensembles show good agreement until Tuesday, with 850hPa temperatures
rising to -5C or -6C over London. There's then a 60/40 split for the next
few days in favour of slowly dropping temperatures, with 40% going for
another pulse of sub -10C air. By the 4th March the mean is at -7C and from
there it slowly rises, crossing the -5C threshold on the 6th March. By then
the runs are split 50/50 between much milder and slightly milder conditions.

GEM: http://www.meteocentre.com/models/glb00_120.html
As with the MetO run, low pressure is centred over the Netherlands with
northerlies for all. The winds become NW'lies and NNW'lies at T+144 as a
ridge moves SE'wards, followed by stronger NNW'lies at T+168 due to a low
over the North Sea.

GME/DWD:
http://www.wetter.com/home/img/sat/g...260000_120.gif
Low pressure is centred to the east, bringing northerlies. The winds become
NNE'lies as the low sinks slowly southwards on day 6, followed by
northerlies and westerlies due to a toppling ridge on day 7.

JMA: http://www.wetterzentrale.de/pics/Rjma1201.html
The Japanese run shows NE'lies and easterlies with a low over Biscay. A
ridge brings light winds for all on day 6, before a new low sinks SE'wards
on day 7, introducing northerlies and westerlies. This sinks southwards on
day 8, leaving the UK under a mixture of northerlies, NE'lies and
easterlies.

NOGAPS: http://wetterzentrale.com/pics/Rngp1201.gif
Unavailable today.

GM CPTEC: http://www.cptec.inpe.br/prevnum/Global126_sx6_Gl.shtml
Easrerlies cover the UK as the result of a high NW of Scotland.

KMA: http://www.kma.go.kr/kma03/gif/g21nh_smsr_120.gif
The UK lies under northerlies, with a high to the west.