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Old January 12th 04, 07:55 PM posted to uk.sci.weather
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Default 12Z Model Summary - Monday 12th January 2004

Charts analysed are for T+96 hours - 12Z Friday 16th January 2004
unless stated.

UKMetO:
SLP: http://www.wetterzentrale.com/pics/Rukm961.html
Low pressure (985mb) lies over Belgium, with a secondary low (995mb)
over Northwestern Scotland. High pressure (1020mb) lies towards the
Azores and into the Med., with another high (1035mb) to the north of
Greenland. Winds across the country are moderate to fresh
northwesterlies in the south, lighter in the north. Most areas will
see a mix of sunshine and showers at times, wintry in places.
Temperatures will be close to normal in most parts. Beyond this
conditions remain unsettled with further rain or showers - possibly
wintry in the north at times, before settling down by the end of next
weekend as high pressure builds in.

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 (990mb) lies over Germany, with another centre (990mb)
close to Norway. High pressure (1020mb) lies over the Azores, with
another high (1035mb) to the north of Greenland. Winds across the
country are mostly light to moderate north/northwesterlies, lightest
in the west. Most parts will see sunshine and showers - wintry in
places. 850hpa temperatures range from -10C in the north to -3C in the
south. Forecast 2m temperatures range from +3C in the north to +7C in
the south. Beyond this conditions slowly turn more settled from the
southwest for a time before much milder weather sweeps in from off the
Atlantic.

DWD:
SLP: http://www.wetter.com/home/img/sat/g...121200_096.gif
Low pressure (990mb) lies over Germany, with other lows (990mb) to the
north of Norway and over the Baltic Sea. High pressure (1020mb) lies
towards the Azores. Winds across the country are mostly light to
moderate west/northwesterlies. Many areas will see sunshine and
showers - perhaps wintry in the north. Temperatures will be close to
normal. Beyond this conditions remain unsettled for a time before high
pressure tries to build in from the southwest.

NOGAPS:
SLP: http://www.wetterzentrale.com/pics/Rngp961.html
850hPa Temperatu http://www.wetterzentrale.com/pics/Rngp962.html
Low pressure (990mb) lies over Germany and the Low Countries with
other centres (990mb) close to Scandinavia. High pressure (1020mb)
lies over the Azores, with another high (1035mb) to the north of
Greenland. Winds across the country are mostly light to moderate
north/northwesterlies. Most parts will see sunshine and showers -
wintry in places. 850hpa temperatures range from -5C in the north to
-2C in the south. Temperatures will generally be close to or just
below normal. Beyond this conditions slowly turn more settled from the
southwest next weekend as high pressure tries to build in.

JMA:
SLP: http://www.wetterzentrale.com/pics/Rjma961.html
850hPa Temperatures: http://www.wetterzentrale.com/pics/Rjma962.html
Low pressure (990mb) lies over Scandinavia, with a secondary low
(995mb) over Germany. High pressure (1025mb) lies over the Azores,
with another high (1040mb) to the north of Greenland. Winds across the
country are mostly light to moderate west/northwesterlies. Most parts
will see sunshine and some showers - wintry in the north. 850hpa
temperatures are close to -1C in many areas. Temperatures will be
close to normal. Beyond this conditions remain very unsettled with
further wind and rain for a time before high pressure settles to the
south, allowing mild Atlantic air in.

Canadian – T+72 hours for THURSDAY:
All charts: http://weatheroffice.ec.gc.ca/data/m...ast/478_50.gif
Low pressure (983mb) lies close to the north of Scotland. High
pressure lies to the southwest of Spain in the Atlantic, with another
high (1037mb) to the north of Greenland. Winds across the country are
mainly moderate to fresh westerlies. Many parts will see sunshine and
showers at times, possibly wintry in the north, whilst temperatures
will be close to normal.

Summary:
A rather mixed set of model output again tonight, with a lot of
variation in details. The general theme however seems to be for a
cooler end to the week before high pressure tries and build into the
UK from the southwest over the weekend, but as yet there is not full
agreement on this, with GFS and JMA quickly collasping the high south
again, allowing much milder Atlantic air in.

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