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uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged. |
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Here is a summary of the latest NWP output for noon on Wednesday. Issued
0602z, 11/09/04. The models continue to show that after an unsettled start to the week, there may well be a brief respite before SW'lies return. As ever in these situations, the further north and west you are the less settled it is likely to be. ECMWF: http://64.246.48.81/pics/Recm1201.gif The UK lies under northerlies and NW'lies, with low pressure over the North Sea. A ridge moves across the UK at T+144, bringing westerlies and SW'lies, followed by SW'lies for all at T+168 as high pressure builds over France. MetO: http://www.wetterzentrale.de/pics/Rukm1201.html SW'lies cover the UK, with high pressure to the south and east. There's little change at T+144, with strong SW'lies for all. GFS: http://64.246.48.81/pics/Rtavn1201.gif A deep low lies to the WNW of Scotland, bringing SW'lies across the UK. 850hPa temperatures range from +3C over NE Scotland to +10C over Northern Ireland, in the warm sector of the low. The SW'lies continue at T+144, but by T+168 they become westerlies as the low fills to the north of Scotland. Day 8 sees pressure rise to the south, with westerlies persisting. By day 9 a ridge affects England and Wales, with SSW'lies or SW'lies across the UK. A trough approaches from the west on day 10, with southerlies for most. GEM: http://www.meteocentre.com/models/glb00_120.html A weak ridge is affecting England and Wales, bringing westerlies there and SW'lies or southerlies elsewhere. 850hPa temperatures vary from +1C over northern Scotland to +8C over Northern Ireland. By T+144 the UK lies under WSW'lies and SW'lies, with lighter winds the further south you are. JMA: http://www.wetterzentrale.de/pics/Rjma1201.html The Japanese run shows low pressure over the North Sea and strong westerlies, NW'lies and northerlies for the UK. 850hPa temperatures range from +3C over NW Scotland to +6C over Cornwall. A ridg ebrings light winds to all areas except Northern Ireland at T+144, followed by SW'lies at T+168 as the ridge moves eastwards and builds. Day 8 sees the winds ease slightly, with high pressure persisting to the south and east. |
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