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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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#1
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Here is a summary of the NWP output for noon on Monday.
Issued 0521, 8th January 2009 Next week will see a zonal flow aloft over the Atlantic. The UK looks like seeing southerlies and SW'lies, with lows losing their energy as they approach from the west. All areas will see rain at times, heaviest in the north and west. Temperatures will generally be at or above average, the latter especially by night. Analysis and evolution to T+120 via GFS High pressure covers all areas except Scotland, which lies under SW'lies. There's little change tomorrow, but by Saturday a strengthenening southerly affects all areas except the SE half of England. By Sunday southerlies cover the whole of the UK, as our high moves away to the east. T+120 synopsis http://91.121.93.17/pics/Rtavn12014.png / http://91.121.93.17/pics/Rtavn1201.png http://91.121.93.17/pics/Rukm1201.gif http://91.121.93.17/pics/Recm1201.gif / http://www.meteociel.fr/modeles/nogapse_cartes.php The jetstream chart shows a strong and zonal jet over the western Atlantic, with a split jet over the UK. At the 500hPa level there are SW'lies, while MetO has westerlies aloft. ECm has an upper SW'ly flow, as does GEM. At the surface, GFS has SW'lies for all with a low to the NW. MetO shows a trough crossing the UK, with SW'lies in advance and WNW'lies following behind. ECM has strong SSW'lies due to a low to the NW and GEM is much the same. Evolution to T+168 ECM shows SW'lies on day 6 as a low moves away to the NE. Southerlies ahead of a low to the west cover the UK on day 7. SW'lies cover the UK on day 6 with GFS, with a low to the WNW. The low fills as it moves eastwards on day 7, leading to lighter southerlies. Looking further afield ECM brings SE'lies on day 8 as the low to the west fills. SE'lies persist on days 9 and 10, although by then a trough crosses the UK from the west. Day 8 with GFS shows southerlies as low pressure continues to fill to the west. A trough to the west leads to SW'lies on day 9, followed by light winds and a col for most on day 10. Ensemble analysis (http://91.121.94.83/modeles/gens/gra...ille=Lon dres) The ensembles continue to show a zonal "sine wave" pattern, with temperatures around or slightly above average. |
#2
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At Last!
DaveR |
#3
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In message , Dave R.
writes At Last! DaveR Fingers crossed here comes the Atlantic!! http://tinyurl.com/75zrnw -- Jim |
#4
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On Thu, 8 Jan 2009 18:19:09 +0000, Jim Kewley
wrote: Fingers crossed here comes the Atlantic!! But apparently without much energy. However, a gradual not much rain scenario will suit me as I have several out of door tasks. I will appreciate a mild waft of wind. R |
#5
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On 8 Jan, 20:26, Robin Nicholson
wrote: On Thu, 8 Jan 2009 18:19:09 +0000, Jim Kewley wrote: Fingers crossed here comes the Atlantic!! But apparently without much energy. However, a gradual not much rain scenario will suit me as I have several out of door tasks. I will appreciate a mild waft of wind. R Looks pretty energetic to me www.wzkarten.de/pics/brack2.gif Well, at lest for those away from the SE. 12' swell forecast for west Cornwall - anybody would think it was August! Graham Penzance |
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