Here is a summary of the latest NWP output for noon on Wednesday. Issued
0536, 21 Jan 06.

In summary, the runs still show cooler weather for the UK in the latter half
of next week, with high pressure to the north. However, some models have
undergone a big change compared to yesterday, with the GFS in particular
showing ensemble means some 5C higher than the 18z run as early as T+144.
Whereas yesterday a cold and (in the east, snowy) spell was looking all but
inevitable, today it's much less certain. As ever, more runs are needed.

ECMWF: http://217.160.75.104/pics/Recm1201.gif
High pressure lies to the north, with a ridge over the UK. This leads to
northerlies for eastern areas of England and Scotland, with easterlies
elsewhere. The high ridges NE'wards at T+144 and merges with the Siberian
High, leading to NE'lies for all areas. The winds strengthen from the ENE or
NE at T+168 as pressure rises over Scandinavia.

MetO: http://217.160.75.104/pics/Rukm1201.gif
MetO also shows high pressure to the north, with SE'lies as a result for
most areas (and NE'lies for eastern parts of the UK). The high declines in
situ at T+144, with easterlies and NE'lies over the UK.

GFS: http://217.160.75.104/pics/Rtavn1201.png
As with ECM and MetO, the UK is dominated by high pressure, this time
centred west of Norway. SE'lies cover the UK, followed by a mixture of
SE'lies and southerlies at T+144 as the ridge sinks SE'wards. T+168 sees
southerlies for all with a trough to the west.

GEM: http://meteocentre.com/models/glb00_120.html
The Canadian run shows a mixture of easterlies and NE'lies with high
pressure to the north. The high moves eatwards at T+144, allowing a cold
easterly to set in across the UK.

GME/DWD:
http://www.wetter.com/home/img/sat/g...210000_120.gif
A ridge from the north covers the UK, leading to easterlies for most and
NE'lies for eastern areas. The high declines and moves SW'wards at T+144,
bringing further easterlies and NE'lies. By T+168 the high lies to the west
of the UK, with northerlies for all.

JMA: http://217.160.75.104/pics/Rjma1201.gif
The Japanese run brings northerlies for eastern areas and easterlies or
SE'lies elsewhere, due to a ridge from a high to the north. The high ridges
NE'wards towards the Siberian High at T+144, leading to NE'lies for many
areas; Northern Ireland and western Scotland lie under SE'lies.

NOGAPS: http://217.160.75.104/pics/ngp10.prp.120.europeg.gif
NOGAPS shows a ridge and light winds over the UK. The ridge moves northwards
and builds at T+144, leading to easterlies for most areas.

KMA: http://www.kma.go.kr/kma03/gif/g21nh_smsr_120.gif
The Korean run shows a ridge to the north, connected to the Siberian High
via Scandinavia. Winds are a mixture of easterlies and NE'lies as a result.