Charts analysed are for T+96 hours - 12Z Saturday 23rd January 2004
unless stated.

UKMetO:
SLP: http://www.wetterzentrale.com/pics/Rukm961.html
Low pressure (975mb) lies to the east of Iceland. High pressure
(1025mb) lies towards the Azores and ridges north, with another high
(1025mb) to the southwest of Britain. Another high (1025mb) is settled
over Western Russia. Winds across the country are moderate to fresh
west/northwesterlies in most parts. Most areas will be rather cloudy,
with rain at times in places. Temperatures will be close to or just
above normal in most parts. Beyond this pressure builds to the
northwest of the country, introducing much colder north/northwesterly
winds and an increasing threat of wintry weather moving south.

GFS:
SLP: http://www.wetterzentrale.com/pics/Rtavn961.html
850hPa Temperatures: http://www.wetterzentrale.com/pics/Rtavn962.html
2m Temperatures: http://www.wetterzentrale.com/pics/Rtavn965.html
Low pressure (980mb) lies to the east of Iceland. High pressure
(1025mb) lies over Spain and the Azores, with another high (1020mb)
developing to the west of the UK in the Atlantic. Pressure is also
high (1025mb) over Russia. Winds across the country are mostly
moderate west/northwesterlies. Most parts will be mainly cloudy with
some rain in places. 850hpa temperatures are close to -2C in many
areas. Forecast 2m temperatures are close to +8C in many parts. Beyond
this pressure builds to the northwest of the UK, introducing much
colder and potentially wintry weather from the north.

DWD:
SLP: http://www.wetter.com/home/img/sat/g...201200_096.gif
Low pressure (980mb) lies close to Iceland. High pressure (1025mb)
lies over the Azores and ridges into the mid Atlantic, where another
high (1025mb) is developing. Winds across the country are mostly light
to moderate west/northwesterlies. Many areas will be mainly dry and
cloudy, but perhaps with rain in places. Temperatures will be close to
normal. Beyond this most parts turn cold and wintry as pressure rises
in the Atlantic to our west/northwest.

NOGAPS:
SLP: http://www.wetterzentrale.com/pics/Rngp961.html
850hPa Temperatu http://www.wetterzentrale.com/pics/Rngp962.html
NLow pressure (980mb) lies to the north of Iceland. High pressure
(1030mb) lies over the Azores and ridges north into the Atlantic, with
another high (1025mb) over Russia. Winds across the country are mostly
light to moderate west/northwesterlies. Most parts will be mainly
cloudy with some rain in places. 850hpa temperatures are close to -1C
in many areas. Temperatures will be close to normal in many areas.
Beyond this conditions remain on the unsettled side with temperatures
near to normal.

JMA:
SLP: http://www.wetterzentrale.com/pics/Rjma961.html
850hPa Temperatures: http://www.wetterzentrale.com/pics/Rjma962.html
Low pressure (975mb) lies to the east/northeast of Iceland. High
pressure (1035mb) lies over the Azores and into southwest Spain,
ridging north into the mid Atlantic. Another high (1025mb) lies over
Russia. Winds across the country are mostly light to moderate
west/northwesterlies. Most parts will see mostly cloudy conditions
with rain in places. 850hpa temperatures range from 0C in the south to
-5C in the northwest. Temperatures will be close to normal. Beyond
this conditions turn much colder as pressure builds to the
west/northwest of the UK, bringing wintry showers to many parts.

Canadian – T+72 hours for FRIDAY:
All charts: http://weatheroffice.ec.gc.ca/data/m...ast/478_50.gif
Low pressure (970mb) lies to the northwest of the UK. High pressure
(1029mb) lies to the southwest of Spain and Portugal. Winds across the
country are mainly moderate to fresh southwesterlies. Many areas will
see rain moving across from the west during the day. Temperatures will
be close to or just above normal.

Summary:
Most models, with the exception of NOGAPS, show conditions to turn
colder as we go through the weekend, with the possibility of very cold
and wintry weather during the early part of next week, especially in
the north and east.