Home |
Search |
Today's Posts |
![]() |
|
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. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
![]() |
|||
|
|||
![]()
Here is a summary of the latest NWP output, for noon (GMT) on Wednesday.
Issued 0555z, 11/10/03. ECMWF: http://www.wetterzentrale.de/pics/Recm1201.gif SE'lies cover the UK, with high pressure over Scandinavia and a low to the SW. The winds become ESE'lies at T+144 as the Scandinavian High declines and retrogresses. By T+144 the former Scandinavian High is mostly absorbed by a high to the SE of Greenland, leading to easterlies over much of the UK. MetO: http://www.wetterzentrale.de/pics/Rukm1201.html Unavailable at time of issue. GFS: http://www.wetterzentrale.de/pics/Rtavn1081.gif As with yesterday's run, Scandinavia is covered by a large high. Moderate SSE'lies and SE'lies cover the UK and there's little change at T+120. 850hPa temperatures range from +6C over NW Scotland to +10C over SE England. The high declines slightly at T+144, bringing SE'lies for all as a result. The SE'lies continue at T+168, as the high moves over the northern North Sea and declines. A new centre forms to the north of Scotland on day 8, resulting in ESE'lies across the UK. Day 9 sees the high merge with the (displaced) Azores High, with easterlies and NE'lies for the UK. The new high declines to the NW of the UK on day 10, with northerlies for Scotland and easterlies elsewhere. GEM: http://www.wetterzentrale.de/pics/Rgem1201.gif High pressure lies over the North Sea, bringing SSE'lies, SE'lies and ESE'lies for the UK. The centre of the high moves to the NE of Iceland at T+120, although a ridge over the North Sea means winds are as before. 850hPa temperatures vary from +6C over northern Scotland to +12C over SW England. SE'lies and ESE'lies affect the UK at T+144, with high pressure to the north of Scotland and a ridge over Germany and Austria. JMA: http://www.wetterzentrale.de/pics/Rjma1201.html The Japanese run shows strong SSE'lies over the UK, due to a large high over Scandinavia. 850hPa temperatures range from +7C over NW Wales to +10C over East Anglia. The SSE'lies continue at T+144, but by T+168 they become SE'lies for many as the high sinks southwards and declines. Model overlay charts (GEM/GFS/JMA): http://expert.weatheronline.co.uk/da.../ens/pslv.html The chart shows good agreement of a Scandinavian high, with a low to the SW of the UK. In summary, today's runs persist in showing a Scandinavian High, with mild winds from the SSE or SE looking likely for the middle of the week. By Friday, the ECM and GFS show more of an easterly component, while the JMA keeps the winds as SE'lies. As ever, more runs are needed. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Today's model interpretation (10/07/03) | uk.sci.weather (UK Weather) | |||
Today's model interpretation (9/07/03) | uk.sci.weather (UK Weather) | |||
Today's model interpretation (8/7/03) | uk.sci.weather (UK Weather) | |||
Today's model interpretation (7/6/03) | uk.sci.weather (UK Weather) | |||
Today's model interpretation (5/07/03) | uk.sci.weather (UK Weather) |