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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 Tuesday. Issued
0655z, 30/01/04. ECMWF: http://www.wetterzentrale.de/pics/Recm1201.html High pressure lies over the western Mediterranean, with low pressure to the north of Scotland. This leads to strong SW'lies for all, with little change at T+144. By then, the winds are lighter southerlies for Scotland and by T+168 the UK lies under lighter WSW'lies and SW'lies, with low pressure to the south of Iceland. MetO: http://www.wetterzentrale.de/pics/Rukm1201.html The Met Office run shows lows over and to the SW of Iceland, with SW'lies for all. The SW'lies continue for all at T+144, as the low to the SW of Iceland moves quickly NE'wards. GFS: http://64.246.48.81/pics/Rtavn1081.gif Strong to gale force SW'lies cover the UK, with a deep low to the south of Iceland. The SW'lies continue at T+120, as a secondary low deepens to the west of Ireland. 850hPa temperatures range from -1C over northern Scotland to +6C over Cornwall. The winds become westerlies at T+144 as pressure rises to the SW, followed by southerlies and SSW'lies as the buildiing ridge moves switfly ENE'wards over Germany. A secondary low covers the UK on day 8, with light winds for most. Day 9 sees the low move NE'wards and deepen, with northerlies and NW'lies for the UK. The NW'lies become lighter for most on day 10 as a weak ridge moves over the UK. GEM: http://www.meteocentre.com/models/glb00_120.html The Canadian run shows a large high over Iberia, France and the western Mediterranean and a low to the north of Scotland. Winds are strong SW'lies for all, with 850hPa temperatures ranging from +3C over northern Scotland to +9C over southern England. The SW'lies continue at T+144, with high pressure persisting to the SSE. JMA: http://www.wetterzentrale.de/pics/Rjma1201.html Strong SSW'lies are affecting the UK, with complex low pressure to the south of Iceland. 850hPa temperatures vary from +1C over NW Scotland to +8C over East Anglia. The winds become WSW'lies at T+144 as the lows merge and move slowly eastwards. The WSW'lies persist at T+168, but by day 8 they become strong westerlies and WNW'lies, due to a weak ridge over the Irish Sea. In summary, the runs continue to show an unsettled spell for all, with strong to gale force SW'lies midweek. Beyond that, things look like staying mobile, with the Azores High ridging northwards to bring cooler westerlies or WNW'lies after a while. As ever, more runs are needed. |
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