Here is a summary of the latest NWP output for noon on Wednesday. Issued
0604z, 27/11/04.

The JMA, GEM and DWD show signs of a northerly spell forming as the high
near the UK retrogresses. The MetO run (as with the previous view days)
instead favours a more westerly outlook, with lows moving NE'wards then
eastwards around the high. The GFS is incomplete this morning, although it
shows high pressure centred close to the UK from days 5 to 10 and beyond.
Before the high moves in, it's likely there'll be a brief easterly for
southern England at least with low pressure to the south - it won't be a
cold easterly though. As ever, more runs are needed.

ECMWF: http://64.246.48.81/pics/Recm1201.gif
The UK lies under a col, with light winds for all. Winds remain light at
T+144 as a ridge moves over the UK, followed by westerlies for much of the
UK at T+168 as the ridge sinks southwards over Wales.

MetO: http://www.wetterzentrale.de/pics/Rukm1201.html
A ridge covers the UK, bringing moderate westerlies to northern Scotland.
Elsewhere, winds are much lighter and vary from westerlies over southern
Scotland to ENE'lies over southern England. The risge moves southwards at
T+144, allowing moderate to strong westerlies to cover the UK.

GFS: http://64.246.48.81/pics/Rtavn1201.gif
There are problems with data on both WeatherOnline and Wetterzentrale with
today's 00z run, with many charts unavailable.
The T+126 chart shows high pressure to the north of the UK with NE'lies and
ENE'lies as a result. By T+180 the high builds and sinks ESE'wards to bring
ENE'lies over England, Northen Ireland and Wales. Scotland lies under a
ridge, with light and variable winds.

GEM: http://www.meteocentre.com/models/glb00_120.html
The Canadian run shows a trough over Scandinavia and low pressure over
southern France. Winds are northerlies for western and northern parts of the
UK with easterlies over much of England. A ridge topples SE'wards over the
UK at T+144 to bring westerlies and northerlies, followed by NW'lies at
T+168 as a new ridge builds to the west. Day 8 sees the ridge move over
England and Wales, leaving the UK under westerlies and northerlies. High
pressure sinks SE'wards from Iceland on day 9, leading to NNE'lies for all.
NNE'lies and northerlies affect much of the UK on day 10 as the high moves
SSE'wards and builds.

GME/DWD:
http://www.wetter.com/home/img/sat/g...270000_120.gif
A ridge lies to the NW of the UK, with low pressure over Biscay. This leads
to easterlies and NE'lies, followed by light winds for all at T+144 as the
ridge topples over the UK. The high retrogresses at T+168, allowing
northerlies to affect northern Scotland with light winds elsewhere.

JMA: http://www.wetterzentrale.de/pics/Rjma1201.html
ESE'lies and easterlies cover the UK as the result of a low over Biscay. The
low moves over NE Spain at T+144, while high pressure builds to the west of
the UK. Winds are ENE'lies for most areas, although the far north of
Scotland lies under westerlies. A ridge covers the UK on day 7, before
moving southwards to allow strong northerlies to affect all areas on day 8.

NOGAPS: http://129.13.102.67/wz/pics/ngp10.prp.120.europeg.gif
A large high lies to the WSW, bringing northerlies across the UK.

GM CPTEC: http://www.cptec.inpe.br/prevnum/Global126_sx6_Gl.shtml
The Brazilian run shows southerlies and SW'lies across the UK due to a high
over Poland and a trough over Scotland.

KMA: http://www.kma.go.kr/kma03/gif/g21nh_smsr_120.gif
Northerlies cover the UK, with high pressure to the WSW.

MM5: http://rain.mmm.ucar.edu/mm5/plots/n...6hrn.hr120.gif
Unavailable today.

MM5 Snow forecast:
http://rain.mmm.ucar.edu/mm5/plots/n...snoc.hr120.gif
Unavailable today.