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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 Sunday. Issued 0551,
11 Jan 06. The models are split today. As with yesterday's 12z output, by T+144 the MetO shows near gale force winds for the UK from a deep low to the NW, whereas the GFS has the UK under a large ridge with light winds. Although the models are broadly similar at T+96, they then differ with respect to trough disruption to the west. The GFS develops a cut-off low to the SW, while MetO and ECM instead show the Azores High ridging eastwards and a much deeper upper trough instead. At the moment the majority of models seem to back the ECM/MetO setup, an unsettled outlook with rain for most at times, but the DWD backs up the GFS in bringing a settled interlude instead. As ever, more runs are needed. ECMWF: http://217.160.75.104/pics/Recm1201.gif A trough covers Ireland, leading to strong SSW'lies over much of the UK. The T+144 chart is unavailable via WZ, but by T+168 the UK lies under westerlies with low pressure well to the north. MetO: http://217.160.75.104/pics/Rukm1201.gif MetO also shows a trough, this time over England and Scotland. To the east winds are SW'lies with westerlies following the trough. A low deepens to the NW at T+144, bringing strong to gale force westerlies for the UK. GFS: http://217.160.75.104/pics/Rtavn1201.png GFS shows southerlies over the UK with a weak ridge from the east covering the UK. Pressure builds over the UK at T+144 with light winds for most, followed by a mixture of SE'lies and westerlies at T+144 as the ridge moves SE'wards. GEM: http://meteocentre.com/models/glb00_120.html Unavailable today. GME/DWD: http://www.wetter.com/home/img/sat/g...110000_120.gif The German run shows a secondary low over the Celtic Sea, leasing to NW'lies for Northern Ireland and NW Scotland. Elsewhere, ahead of a trough, winds are SW'lies. A ridge topples over the UK at T+144, bringing westerlies to Northern Ireland and Scotland; elsewhere winds are light and either westerlies or NE'lies. JMA: http://217.160.75.104/pics/Rjma1201.gif The Japanese run shows strong southerlies for all with complex low pressure to the WNW. SW'lies affect the UK at T+144 as a trough moves eastwards over Ireland. NOGAPS: http://217.160.75.104/pics/ngp10.prp.120.europeg.gif The American Navy run also shows southerlies, this time with a high to the NW. KMA: http://www.kma.go.kr/kma03/gif/g21nh_smsr_120.gif Southerlies cover the UK as the result of a low to the west. |
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