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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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My word, by next Saturday the GFS DT12Z is forecasting a 200+knot westerly
jet along circa 55N extending across the Atlantic and pointing straight at UK. If this comes off, and it has been predicted by ECMWF too then we are in for some very lively weather next weekend and beyond. Lot of very cold air (sub 492 DAM) over Arctic Canada to become entrained too. Watch out Scotland especially :-) Will -- |
#2
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On Sat, 10 Jan 2009 16:46:18 -0000, "Will Hand"
wrote: My word, by next Saturday the GFS DT12Z is forecasting a 200+knot westerly jet along circa 55N extending across the Atlantic and pointing straight at UK. If this comes off, and it has been predicted by ECMWF too then we are in for some very lively weather next weekend and beyond. Lot of very cold air (sub 492 DAM) over Arctic Canada to become entrained too. Watch out Scotland especially :-) Will, does that mean some beefy depressions bombing over. I am going caving and a slight choice of routes(and caves) but,however,decisions are not made until we are up there. I have to wallow around in a streamway so am expecting bloody cold water but the standard cave temp does not alter. Thermals + furry suit + outer + balaclavas. Mendips have a quick run off so hence the query about activity R |
#3
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Robin Nicholson wrote:
On Sat, 10 Jan 2009 16:46:18 -0000, "Will Hand" wrote: My word, by next Saturday the GFS DT12Z is forecasting a 200+knot westerly jet along circa 55N extending across the Atlantic and pointing straight at UK. If this comes off, and it has been predicted by ECMWF too then we are in for some very lively weather next weekend and beyond. Lot of very cold air (sub 492 DAM) over Arctic Canada to become entrained too. Watch out Scotland especially :-) Will, does that mean some beefy depressions bombing over. I am going caving and a slight choice of routes(and caves) but,however,decisions are not made until we are up there. I have to wallow around in a streamway so am expecting bloody cold water but the standard cave temp does not alter. Thermals + furry suit + outer + balaclavas. Mendips have a quick run off so hence the query about activity R Yes it means *potentially* stormy, especially in the west and north. Will -- |
#4
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Will Hand wrote:
My word, by next Saturday the GFS DT12Z is forecasting a 200+knot westerly jet along circa 55N extending across the Atlantic and pointing straight at UK. If this comes off, and it has been predicted by ECMWF too then we are in for some very lively weather next weekend and beyond. Lot of very cold air (sub 492 DAM) over Arctic Canada to become entrained too. Watch out Scotland especially :-) Will 12Z ECMWF looks just as fearsome with storms and deep cold polar maritime air set to sweep into Britain next Sunday (18th). Very strong flow at 500 hPa implying a powerful jet aloft. Flow finally sweeping away the remaining vestiges of the block over Europe which looks like bravely hanging on for a while next week. Will -- |
#5
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Will Hand wrote:
Will Hand wrote: My word, by next Saturday the GFS DT12Z is forecasting a 200+knot westerly jet along circa 55N extending across the Atlantic and pointing straight at UK. If this comes off, and it has been predicted by ECMWF too then we are in for some very lively weather next weekend and beyond. Lot of very cold air (sub 492 DAM) over Arctic Canada to become entrained too. Watch out Scotland especially :-) Will 12Z ECMWF looks just as fearsome with storms and deep cold polar maritime air set to sweep into Britain next Sunday (18th). Very strong flow at 500 hPa implying a powerful jet aloft. Flow finally sweeping away the remaining vestiges of the block over Europe which looks like bravely hanging on for a while next week. Will 00Z Sunday GFS shows jet slamming into SW Ireland by 06Z Sunday with left exit (strong development zone) over Irish Sea. Jet then sinks south and weakens slowly. Next week is going to be *very* interesting. *Potentially* we could have: Storms and inland gales causing widespread damage anywhere in UK Widespread blizzards over Scotland. Just a heads up, the detail will change :-) Will -- |
#6
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On Jan 11, 8:41*am, "Will Hand" wrote:
Will Hand wrote: Will Hand wrote: My word, by next Saturday the GFS DT12Z is forecasting a 200+knot westerly jet along circa 55N extending across the Atlantic and pointing straight at UK. If this comes off, and it has been predicted by ECMWF too then we are in for some very lively weather next weekend and beyond. Lot of very cold air (sub 492 DAM) over Arctic Canada to become entrained too. Watch out Scotland especially :-) Will 12Z ECMWF looks just as fearsome with storms and deep cold polar maritime air set to sweep into Britain next Sunday (18th). Very strong flow at 500 hPa implying a powerful jet aloft. Flow finally sweeping away the remaining vestiges of the block over Europe which looks like bravely hanging on for a while next week. Will 00Z Sunday GFS shows jet slamming into SW Ireland by 06Z Sunday with left exit (strong development zone) over Irish Sea. Jet then sinks south and weakens slowly. Next week is going to be *very* interesting. *Potentially* we could have: Storms and inland gales causing widespread damage anywhere in UK Widespread blizzards over Scotland. Just a heads up, the detail will change :-) Will --- Hide quoted text - - Show quoted text - An I assume it is looking good for snow in the Alps, say 25th Jan, French Alps at 1850m? ;-) |
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