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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 (GMT) on Thursday.
Issued 0611z, 3/08/03. ECMWF: http://www.wetterzentrale.de/pics/Recm1201.html As with many runs over the past few days, easterlies and southerlies cover the UK due to a high to the NE. There's little change at T+144 and the T+168 chart is unavailable. MetO: http://www.wetterzentrale.de/pics/Rukm1201.html The T+120 chart is missing its isobars today. The T+144 chart shows a large high over the UK, with moderate westerlies for northern Scotland and light winds elsewhere. GFS: http://www.atmos.albany.edu/weather/...F/mrfsfc00F108 ..gif High pressure lies to the east of the UK, with light southerlies for most areas. The high continues to drift eastwards at T+120, allopwing stronger SSW'lies to affect Ireland. 850hPa temperatures range from +10C over northern Scotland to +18C over southern England. By T+144, high pressure covers the North Sea, with light easterlies and southerlies for the UK. The high builds at T+168, leading to SE'lies for most. By day 8, a small low lies to the west of Scotland, with southerlies over the UK. The low moves northwards and deepens on day 9, leaving light winds over the UK. A new high covers much of the UK on day 10, with easterlies for England and Wales. GEM: http://meteocentre.com/models/glb00_120_e.html Scotland and Northern Ireland lie under westerlies, with a ridge over England and Wales. By T+144, southerlies cover the UK, as the ridge builds northwards. The southerlies continue at T+168 as a low deepens and moves eastwards to the south of Iceland. High pressure covers the UK on day 8 and it drifts NE'wards on day 9, bringing easterlies and southerlies over the UK. On day 10, winds become light and variable over much of the UK as another ridge builds from the SW. JMA: http://www.wetterzentrale.de/pics/Rjma1201.html High pressure lies to the west of southern Norway, resulting in easterlies and southerlies over the UK. 850hPa temperatures range from +15C over northern Scotland to +18C over southern England. MM5: http://rain.mmm.ucar.edu/mm5/plots/n...6hrn.hr120.gif The UK lies under northerlies and NW'lies, with high pressure over the Celtic Sea. In summary, the runs persist in showing a mainly settled outlook, although there are starting to be some considerable differences with regards to the intensity and positioning of the high. As ever, more runs are needed. |
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