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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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Certainly looks cold enough on the northern edge of the deep low running
across the south or Channel. Another one to watch. Doesn't last long though. Will -- http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm Will Hand (Haytor, Devon, 1017 feet asl) --------------------------------------------- |
#2
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On Tuesday, January 29, 2013 9:30:21 AM UTC, wrote:
Certainly looks cold enough on the northern edge of the deep low running across the south or Channel. Another one to watch. Doesn't last long though. You mean that 'deep' low which is 1006mb on the latest GFS run? |
#3
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On Tue, 29 Jan 2013 01:40:35 -0800 (PST), willie eckerslike
wrote: You mean that 'deep' low which is 1006mb on the latest GFS run? Depth is relative :-) Deepens from 1003 to 989 in 12 hours (12z Fri to 00z Sat) on the output I'm looking at. 14 hPa in 12 hours is explosive deepening. Interesting situation. -- Freddie Bayston Hill Shropshire 102m AMSL http://www.hosiene.co.uk/weather/ https://twitter.com/#!/BaystonHillWx*for hourly reports* |
#4
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On Tuesday, 29 January 2013 09:59:19 UTC, Freddie wrote:
On Tue, 29 Jan 2013 01:40:35 -0800 (PST), willie eckerslike wrote: You mean that 'deep' low which is 1006mb on the latest GFS run? Depth is relative :-) Deepens from 1003 to 989 in 12 hours (12z Fri to 00z Sat) on the output I'm looking at. 14 hPa in 12 hours is explosive deepening. Interesting situation. -- Freddie Bayston Hill Shropshire 102m AMSL http://www.hosiene.co.uk/weather/ https://twitter.com/#!/BaystonHillWxᅵfor hourly reportsᅵ I think Will may have been talking about a different low. I don't believe that one didn't exist on the 00Z run? |
#5
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On Tuesday, January 29, 2013 9:59:19 AM UTC, Freddie wrote:
Deepens from 1003 to 989 in 12 hours (12z Fri to 00z Sat) on the output I'm looking at. 14 hPa in 12 hours is explosive deepening. Interesting situation. Piers and Jim will be pleased! |
#6
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On Tue, 29 Jan 2013 09:59:19 +0000
Freddie wrote: On Tue, 29 Jan 2013 01:40:35 -0800 (PST), willie eckerslike wrote: You mean that 'deep' low which is 1006mb on the latest GFS run? Depth is relative :-) Deepens from 1003 to 989 in 12 hours (12z Fri to 00z Sat) on the output I'm looking at. 14 hPa in 12 hours is explosive deepening. Interesting situation. On the 00Z run, it was barely a low and didn't deepen till it got into the Med. On one of yesterday's runs, it deepened and ran into Biscay, missing UK. Looks like time to roll a die. -- Graham P Davis, Bracknell, Berks. Feeling stressed and frustrated? Try a short session of contemplative meditation. Or kick a ballboy. (https://twitter.com/GreySkyThinking) |
#7
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![]() "Graham P Davis" wrote in message -jade... On Tue, 29 Jan 2013 09:59:19 +0000 Freddie wrote: On Tue, 29 Jan 2013 01:40:35 -0800 (PST), willie eckerslike wrote: You mean that 'deep' low which is 1006mb on the latest GFS run? Depth is relative :-) Deepens from 1003 to 989 in 12 hours (12z Fri to 00z Sat) on the output I'm looking at. 14 hPa in 12 hours is explosive deepening. Interesting situation. On the 00Z run, it was barely a low and didn't deepen till it got into the Med. On one of yesterday's runs, it deepened and ran into Biscay, missing UK. Looks like time to roll a die. 00Z ECM explosive deepener along the Channel. 06Z GFS deep low runs across England 00Z UKMO more shallow low moves across Channel 00Z ECM ensembles deepening low moving across southern England. As I said definitely one to watch for rain, snow and gales. Potential severe situation. Will -- http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm Will Hand (Haytor, Devon, 1017 feet asl) --------------------------------------------- |
#8
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On Tue, 29 Jan 2013 10:25:07 +0000, Graham P Davis
wrote: Deepens from 1003 to 989 in 12 hours (12z Fri to 00z Sat) on the output I'm looking at. 14 hPa in 12 hours is explosive deepening. Interesting situation. On the 00Z run, it was barely a low and didn't deepen till it got into the Med. On one of yesterday's runs, it deepened and ran into Biscay, missing UK. Looks like time to roll a die. I was referring to 12z GM from yesterday (I think it was). Haven't looked at anything more recent. A quick comparison with yesterday's 12z EC (deeper and further north) suggests that something is going to happen - and I guess the development is that sensitive to initial conditions, so I may well take your advice :-) -- Freddie Bayston Hill Shropshire 102m AMSL http://www.hosiene.co.uk/weather/ https://twitter.com/#!/BaystonHillWx*for hourly reports* |
#9
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On Tue, 29 Jan 2013 02:03:04 -0800 (PST), "Alan (North West Surrey)"
wrote: I think Will may have been talking about a different low. I don't believe t= hat one didn't exist on the 00Z run? Yeah you're probably right - lots of different ideas out there at the moment... -- Freddie Bayston Hill Shropshire 102m AMSL http://www.hosiene.co.uk/weather/ https://twitter.com/#!/BaystonHillWx*for hourly reports* |
#10
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willie eckerslike wrote:
On Tuesday, January 29, 2013 9:30:21 AM UTC, wrote: Certainly looks cold enough on the northern edge of the deep low running across the south or Channel. Another one to watch. Doesn't last long though. You mean that 'deep' low which is 1006mb on the latest GFS run? Or 979mb on the ECMWF operational run ......... you pays your money and you takes your choice. The joys of numerical weather prediction :-) -- Norman Lynagh Tideswell, Derbyshire 303m a.s.l. |
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