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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 Saturday. Issued
0608z, 6/04/04. ECMWF: http://www.wetterzentrale.de/pics/Recm1201.html As with the previous few runs, northerlies and NW'lies cover much of the UK, although due to a ridge over the UK NE'lies cover southern England. The ridge sinks southwards at T+144, allowing NW'lies to affect all areas. The winds strengthen and become northerlies over Scotland at T+168, with NW'lies elsewhere. MetO: http://www.wetterzentrale.de/pics/Rukm1201.html The Met Office run shows a ridge over Scotland, with NE'lies for England and Wales. The ridge moves slowly SE'wards at T+144, bringing WSW'lies to Scotland and Northern Ireland, with lighter winds for England and Wales. GFS: http://64.246.48.81/pics/Rtavn1201.gif A ridge covers the UK, bringing westerlies to Scotland and Northern Ireland, with NE'lies or NNE'lies elsewhere. 850hPa temperatures range from -4C over NE Scotland to +1C over Wales. The winds become westerlies for all at T+144 as the ridge moves southwards, followed by NW'lies at T+168 as another weak ridge moves SE'wards. That ridge also moves away on day 8, leaving WNW'lies for the UK, before the Azores High moves eastwards over Biscay with westerlies for all. On day 10 a new high builds to the west, with WSW'lies for all. GEM: http://www.meteocentre.com/models/glb00_120.html The Canadian run also shows a ridge over the UK, with westerlies and NE'lies much as with the GFS. 850hPa temperatures vary from -4C over East Anglia to +1C over Northern Ireland. By T+144 the winds become NW'lies as the ridge moves southwards over the English Channel. JMA: http://www.wetterzentrale.de/pics/Rjma1201.html Moderate northerlies and NE'lies are affecting the UK, due to highs to the WSW of the British Isles and over Iceland. 850hPa temperatures range from -8C over northern Scotland to freezing over SW England. The winds become lighter westerlies, NW'lies and northerlies as a ridge moves over the UK at T+144, followed by WSW'lies at T+168. By day 8 the UK lies under SW'lies with a deep low west of Scotland. In summary, the models now show a ridge moving across the UK during the Easter weekend, with milder NW'lies, WNW'lies or even westerlies likely as the new week starts. |
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