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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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Tonights low shown to have one of these features developing.
I'm sure the experts can explain why bent back occlusions are particularly nasty? I remember one featured greatly in giving this area 100mph+ gusts on Boxing night 1998. The GFS model predicts an overland storm force 10 uncomfortably close to this location in the early morning. The track is rather crucial mind you, and I guess it could still go a bit north or a little bit south. Gusts of 90mph can't be out of the question either I'd imagine? Alex. บบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบ Conditions in Wishaw @ 7:40am , 7/1/05 Temperature 11.3 ฐC. Dew point 10.8 บC. 97.0 %RH Mean wind speed 23 mph from the South West . Gusting to 39 mph. Remarks; Heavy Rain , 0.6 mm precipitation in the past hour. Cloud cover: Overcast MSLP 999.3 mb, Rising . Today's Max. 11.3 ฐC at 7:31am . Today's min. 10.4 ฐC at 1:14am . Today's rain 7.6 mm Wishaw, North Lanarkshire, Scotland N55บ47'14", W3บ55'15". 360ft/117m amsl http://www.alex114.pwp.blueyonder.co.uk/ บบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบ |
#2
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![]() May turn to snow before it moves away aswell ! Paul C Brampton |
#3
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![]() "Alex Stephens Jr" wrote in message ... Tonights low shown to have one of these features developing. I'm sure the experts can explain why bent back occlusions are particularly nasty? I remember one featured greatly in giving this area 100mph+ gusts on Boxing night 1998. The GFS model predicts an overland storm force 10 uncomfortably close to this location in the early morning. The track is rather crucial mind you, and I guess it could still go a bit north or a little bit south. Gusts of 90mph can't be out of the question either I'd imagine? Alex. บบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบ Conditions in Wishaw @ 7:40am , 7/1/05 Temperature 11.3 ฐC. Dew point 10.8 บC. 97.0 %RH Mean wind speed 23 mph from the South West . Gusting to 39 mph. Remarks; Heavy Rain , 0.6 mm precipitation in the past hour. Cloud cover: Overcast MSLP 999.3 mb, Rising . Today's Max. 11.3 ฐC at 7:31am . Today's min. 10.4 ฐC at 1:14am . Today's rain 7.6 mm Wishaw, North Lanarkshire, Scotland N55บ47'14", W3บ55'15". 360ft/117m amsl http://www.alex114.pwp.blueyonder.co.uk/ บบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบ There is a real risk of a =sting jet= scenario with a quickly developing or rapidly developing low crossing the UK underneath a powerful 150Knt Jet. Southern Scotland is at risk of seeing the upper winds dragged down as the low exits (80Knts gusts are just about possible) Track and degree of development will be crucial. (GFS has it slightly shallower and slightly further south for instance) The difference may not sound great but it will make a huge difference as to whether the central lowlands are under the possible "sting" PB |
#4
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"Alex Stephens Jr" wrote in
: Gusts of 90mph can't be out of the question either I'd imagine? "Batten down the hatches" Alex as I'm sure they'll tell you to do. Wouldn't be surprised to see the "sting jet" region pass over the Edinburgh area, which would be interesting. Cheers Rich |
#5
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I'll Batten down the hatches and tie down the greenhouse too Richard.
As far as I can tell from the latest GFS run, the lows southern flank does indeed look as though it will affect the central lowlands. Winds possibly being further enhanced by a funneling effect? Judging by the warnings on the Met office site however, the strongest winds are saved for the far north of England. So perhaps still a little disagreement on the prescise track, and 100km one way or the other could make a considerable difference for lying in the track of a potential sting jet. Edinburgh and Prestwick TAF's suggesting 55KT gusts for a couple of hours either side of 6am. Steve Loft & Dave Liquorice - watch out! It's certainly going to be a windy morning whatever - and then the Southern Scandinavians have something to worry about. Alex. บบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบ Conditions in Wishaw @ 1:55pm , 7/1/05 Temperature 8.7 ฐC. Dew point 6.3 บC. 85.0 %RH Mean wind speed 11 mph from the West South West . Cloud cover: Broken Clouds MSLP 1001.5 mb, Falling . Today's Max. 11.3 ฐC at 7:31am . Today's min. 8.7 ฐC at 1:53pm . Today's rain 11.2 mm Wishaw, North Lanarkshire, Scotland N55บ47'14", W3บ55'15". 360ft/117m amsl http://www.alex114.pwp.blueyonder.co.uk/ บบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบ "Richard Dixon" wrote in message . 1.4... "Alex Stephens Jr" wrote in : Gusts of 90mph can't be out of the question either I'd imagine? "Batten down the hatches" Alex as I'm sure they'll tell you to do. Wouldn't be surprised to see the "sting jet" region pass over the Edinburgh area, which would be interesting. Cheers Rich |
#6
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Hi Alex,
Do you think the strong winds will affect us?:- Leyburn, North Yorkshire ( just to the west of Richmnod and Darlington) Thanks Nigel |
#7
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Alex Stephens Jr wrote:
Steve Loft & Dave Liquorice - watch out! Thanks for the warning, Alex. I was going to ask how much at risk I was, as the forecasts so far seem contradictory, and the recent warnings have come to nothing (here) anyway. My wife thinks I have cried "wolf" once too often recently. -- Steve Loft, Wanlockhead, Dumfriesshire. 1417ft ASL http://www.wanlockhead.org.uk/weather/ Free weather softwa http://cumulus.nybbles.co.uk/ Experimental webcam: http://www.wanlockhead.org.uk/webcam.php |
#8
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"Alex Stephens Jr" wrote in message
... I'll Batten down the hatches and tie down the greenhouse too Richard. As far as I can tell from the latest GFS run, the lows southern flank does indeed look as though it will affect the central lowlands. Winds possibly being further enhanced by a funneling effect? Judging by the warnings on the Met office site however, the strongest winds are saved for the far north of England. So perhaps still a little disagreement on the prescise track, and 100km one way or the other could make a considerable difference for lying in the track of a potential sting jet. Edinburgh and Prestwick TAF's suggesting 55KT gusts for a couple of hours either side of 6am. There is still significant differences between the various models, Alex, including the possible sting jet development and it's positioning. Thus the fine detail shouldn't be taken too literally, particularly in volatile situations such as this. Also, don't forget the 30% probability threshold TAF wise and that they're site specific, i.e higher gusts (as mentioned in warning) are likely in the broadscale, particularly over exposed locations. In saying that I wouldn't be surprised if the figures were a bit higher in one or two Long TAFs come the 1600Z issue, at least in association a PROB. Jon. |
#9
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"Alex Stephens Jr" wrote in message
... I'll Batten down the hatches and tie down the greenhouse too Richard. As far as I can tell from the latest GFS run, the lows southern flank does indeed look as though it will affect the central lowlands. Winds possibly being further enhanced by a funneling effect? Judging by the warnings on the Met office site however, the strongest winds are saved for the far north of England. So perhaps still a little disagreement on the prescise track, and 100km one way or the other could make a considerable difference for lying in the track of a potential sting jet. Edinburgh and Prestwick TAF's suggesting 55KT gusts for a couple of hours either side of 6am. There is still significant differences between the various models, Alex, including the possible sting jet development and its positioning. Thus the fine detail shouldn't be taken too literally, particularly in volatile situations such as this. Also, don't forget the 30% probability threshold TAF wise and that they're site specific, i.e higher gusts (as mentioned in warning) are likely in the broadscale, particularly over exposed locations. In saying that I wouldn't be surprised if the figures were a bit higher in one or two Long TAFs come the 1600Z issue, at least in association with a PROB. Jon. |
#10
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![]() "Jon O'Rourke" wrote in message ... There is still significant differences between the various models, Alex, including the possible sting jet development and its positioning. Thus the fine detail shouldn't be taken too literally, particularly in volatile situations such as this. .... agree he this is a *highly* developmental situation (discussed elsewhere in the ng) - right on our doorstep! Best not to try and be clever; if you've got concerns about the wind, then take precautions (if possible) and be thankful if things aren't quite as bad as might be. Martin. -- FAQ & Glossary for uk.sci.weather at:- http://homepage.ntlworld.com/booty.weather/uswfaqfr.htm |
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