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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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Well after three weeks of twoing and froing it looks as if the cold will
return in a few days time. Will said - "Note that 850hPa temps. will not be a useful guide as cold air will be below this to start with. " So I imagine some of the -15C 850 hPa's being modelled for London in some peturbations would bring quite chilly conditions ;-) Dave |
#2
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In article ,
Dave Cornwell writes: Well after three weeks of twoing and froing it looks as if the cold will return in a few days time. Will said - "Note that 850hPa temps. will not be a useful guide as cold air will be below this to start with. " So I imagine some of the -15C 850 hPa's being modelled for London in some peturbations would bring quite chilly conditions ;-) Dave ![]() Both the 18Z and 00Z GFS operational runs went for very cold NEerlies by the middle of next week, and so far the 06Z seems to be evolving very similarly. With such cold air aloft and quite a long sea track over the North Sea, I imagine that eastern regions could see quite a bit of snow. But the air would have been warmed in its lowest layer by that longish sea track, so for places within a mile or two of the coast there might be a risk of it falling as rain or sleet. -- John Hall "Acting is merely the art of keeping a large group of people from coughing." Sir Ralph Richardson (1902-83) |
#3
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On 4 Feb, 10:07, John Hall wrote:
Both the 18Z and 00Z GFS operational runs went for very cold NEerlies by the middle of next week, and so far the 06Z seems to be evolving very similarly. With such cold air aloft and quite a long sea track over the North Sea, I imagine that eastern regions could see quite a bit of snow. Given that inter-model comparisons are very useful in this sort of flip-flop situation, thought I'd draw people's attention to something that the guys at Weatheronline knocked up on my request - basically a comparison of the models for the same time - all stuck on the same panel, along with the ensemble means, too. http://www.weatheronline.co.uk/cgi-b...&ARCHIV=0&WMO= They're also working on a chart that shows the same model, verifying at the same time, but for forecasts going back in time - so T+24, T +48, T+72 etc.. which I'm sure will be useful for seeing how each individual model is coping with the current situation and how quickly it has "come into line". The weatheronline guys have said it should be online in a few days. Cheers Richard |
#4
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![]() "John Hall" wrote in message ... In article , Dave Cornwell writes: Well after three weeks of twoing and froing it looks as if the cold will return in a few days time. Will said - "Note that 850hPa temps. will not be a useful guide as cold air will be below this to start with. " So I imagine some of the -15C 850 hPa's being modelled for London in some peturbations would bring quite chilly conditions ;-) Dave ![]() Both the 18Z and 00Z GFS operational runs went for very cold NEerlies by the middle of next week, and so far the 06Z seems to be evolving very similarly. With such cold air aloft and quite a long sea track over the North Sea, I imagine that eastern regions could see quite a bit of snow. But the air would have been warmed in its lowest layer by that longish sea track, so for places within a mile or two of the coast there might be a risk of it falling as rain or sleet. -- John Hall "Acting is merely the art of keeping a large group of people from coughing." Sir Ralph Richardson (1902-83) ----------------------- I think you may be right. It looks like it could pan out like the last two cold spells with still no actual vigorous easterly eminating from the Russian HP and beyond. Dave |
#5
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On Feb 4, 10:07*am, John Hall wrote:
In article , *Dave Cornwell writes: Well after three weeks of twoing and froing it looks as if the cold will return in a few days time. Will said - "Note that 850hPa temps. will not be a useful guide as cold air will be below this to start with. " So I imagine some of the -15C 850 hPa's being modelled for London in some peturbations would bring quite chilly conditions ;-) Dave ![]() Both the 18Z and 00Z GFS operational runs went for very cold NEerlies by the middle of next week, and so far the 06Z seems to be evolving very similarly. With such cold air aloft and quite a long sea track over the North Sea, I imagine that eastern regions could see quite a bit of snow. But the air would have been warmed in its lowest layer by that longish sea track, so for places within a mile or two of the coast there might be a risk of it falling as rain or sleet. -- John Hall * * * * * *"Acting is merely the art of keeping a large group of people * * * * * * from coughing." * * * * * * * * * * * * * * * Sir Ralph Richardson (1902-83) 12z still shows wintry showers setting in as early as Monday on the East Coast and there is the potential for more widespread snow to follow during the week. It's looking unfortunately likely that we're in for another cold spell that may well be still there in 10 days time. It's been a long winter even for us in balmy South Devon. The crocuses and the 6 daffodils which are in flower in my garden look like they may be in for a shock next week! The ECM 00z ensembles show a cooling trend from tomorrow, with cold weather right out past mid- month: http://www.meteogroup.co.uk/uk/home/..._forecast.html and the gfs 06z ens show a more significant cooling next week, with a gradual recovery to something a little milder: http://www.netweather.tv/index.cgi?a...nsviewer;sess= Credits to Meteogroup and netweather for the info, as always. Caveat....could all change with this evenings model runs! |
#6
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![]() "Dawlish" wrote in message ... On Feb 4, 10:07 am, John Hall wrote: In article , Dave Cornwell writes: Well after three weeks of twoing and froing it looks as if the cold will return in a few days time. Will said - "Note that 850hPa temps. will not be a useful guide as cold air will be below this to start with. " So I imagine some of the -15C 850 hPa's being modelled for London in some peturbations would bring quite chilly conditions ;-) Dave ![]() Both the 18Z and 00Z GFS operational runs went for very cold NEerlies by the middle of next week, and so far the 06Z seems to be evolving very similarly. With such cold air aloft and quite a long sea track over the North Sea, I imagine that eastern regions could see quite a bit of snow. But the air would have been warmed in its lowest layer by that longish sea track, so for places within a mile or two of the coast there might be a risk of it falling as rain or sleet. -- John Hall "Acting is merely the art of keeping a large group of people from coughing." Sir Ralph Richardson (1902-83) 12z still shows wintry showers setting in as early as Monday on the East Coast and there is the potential for more widespread snow to follow during the week. It's looking unfortunately likely that we're in for another cold spell that may well be still there in 10 days time. It's been a long winter even for us in balmy South Devon. The crocuses and the 6 daffodils which are in flower in my garden look like they may be in for a shock next week! The ECM 00z ensembles show a cooling trend from tomorrow, with cold weather right out past mid- month: ========== Long winter? How long do winters normally last with you Paul, it is only beginning of February! My garden is well and truly asleep, no sign of life whatsoever, which is as it should be in the depths of winter. Hopefully I won't have to mow my grass till April having last cut it at end of October, many bits are dying back and yellowing now after the snow and frost. Equally hopefully the daffodils will appear in last week of March (a little later than normal) as a few are still only barely poking through the soil. I think this final (yes final) third wave for southern Britain will be the snowiest and may last at least until the end of February. Will -- |
#7
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On Feb 4, 5:30*pm, "Will Hand" wrote:
"Dawlish" wrote in message ... On Feb 4, 10:07 am, John Hall wrote: In article , Dave Cornwell writes: Well after three weeks of twoing and froing it looks as if the cold will return in a few days time. Will said - "Note that 850hPa temps. will not be a useful guide as cold air will be below this to start with. " So I imagine some of the -15C 850 hPa's being modelled for London in some peturbations would bring quite chilly conditions ;-) Dave ![]() Both the 18Z and 00Z GFS operational runs went for very cold NEerlies by the middle of next week, and so far the 06Z seems to be evolving very similarly. With such cold air aloft and quite a long sea track over the North Sea, I imagine that eastern regions could see quite a bit of snow.. But the air would have been warmed in its lowest layer by that longish sea track, so for places within a mile or two of the coast there might be a risk of it falling as rain or sleet. -- John Hall "Acting is merely the art of keeping a large group of people from coughing." Sir Ralph Richardson (1902-83) 12z still shows wintry showers setting in as early as Monday on the East Coast and there is the potential for more widespread snow to follow during the week. It's looking unfortunately likely that we're in for another cold spell that may well be still there in 10 days time. It's been a long winter even for us in balmy South Devon. The crocuses and the 6 daffodils which are in flower in my garden look like they may be in for a shock next week! The ECM 00z ensembles show a cooling trend from tomorrow, with cold weather right out past mid- month: ========== Equally hopefully the daffodils will appear in last week of March (a little later than normal) as a few are still only barely poking through the soil.. I think this final (yes final) third wave for southern Britain will be the snowiest and may last at least until the end of February. Will Is that a hint for something warmer in the early spring? That would be just right, a cold first half of Feb followed by a warm and bright March and April. Nick |
#8
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On Feb 4, 5:30*pm, "Will Hand" wrote:
"Dawlish" wrote in message ... On Feb 4, 10:07 am, John Hall wrote: In article , Dave Cornwell writes: Well after three weeks of twoing and froing it looks as if the cold will return in a few days time. Will said - "Note that 850hPa temps. will not be a useful guide as cold air will be below this to start with. " So I imagine some of the -15C 850 hPa's being modelled for London in some peturbations would bring quite chilly conditions ;-) Dave ![]() Both the 18Z and 00Z GFS operational runs went for very cold NEerlies by the middle of next week, and so far the 06Z seems to be evolving very similarly. With such cold air aloft and quite a long sea track over the North Sea, I imagine that eastern regions could see quite a bit of snow.. But the air would have been warmed in its lowest layer by that longish sea track, so for places within a mile or two of the coast there might be a risk of it falling as rain or sleet. -- John Hall "Acting is merely the art of keeping a large group of people from coughing." Sir Ralph Richardson (1902-83) 12z still shows wintry showers setting in as early as Monday on the East Coast and there is the potential for more widespread snow to follow during the week. It's looking unfortunately likely that we're in for another cold spell that may well be still there in 10 days time. It's been a long winter even for us in balmy South Devon. The crocuses and the 6 daffodils which are in flower in my garden look like they may be in for a shock next week! The ECM 00z ensembles show a cooling trend from tomorrow, with cold weather right out past mid- month: ========== Long winter? How long do winters normally last with you Paul, it is only beginning of February! My garden is well and truly asleep, no sign of life whatsoever, which is as it should be in the depths of winter. Hopefully I won't have to mow my grass till April having last cut it at end of October, many bits are dying back and yellowing now after the snow and frost. Equally hopefully the daffodils will appear in last week of March (a little later than normal) as a few are still only barely poking through the soil.. I think this final (yes final) third wave for southern Britain will be the snowiest and may last at least until the end of February. Will --- Hide quoted text - - Show quoted text - Down here on the coast in Dawlish, real winter is only occasional and has lasted for no longer a few days at a time since we moved here in 1998. It's one of the reasons we're here. As a result, this colder winter has seemed long. "Oooh I can't wait for spring, this winter's lasted ages" is what the dog-walking fraternity are saying and they're a good barometer! PS I know winter is the same length each year, but It feels like someone stuck an extra month in this one somewhere! It's not too long to spring, but it looks like we'll have to endure another cold spell first! |
#9
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![]() PS I know winter is the same length each year, but It feels like someone stuck an extra month in this one somewhere! It's not too long to spring, but it looks like we'll have to endure another cold spell first! Try living in the north east of Scotland !! |
#10
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On Feb 4, 5:49*pm, Dawlish wrote:
On Feb 4, 5:30*pm, "Will Hand" wrote: "Dawlish" wrote in message ... On Feb 4, 10:07 am, John Hall wrote: In article , Dave Cornwell writes: Well after three weeks of twoing and froing it looks as if the cold will return in a few days time. Will said - "Note that 850hPa temps. will not be a useful guide as cold air will be below this to start with. " So I imagine some of the -15C 850 hPa's being modelled for London in some peturbations would bring quite chilly conditions ;-) Dave ![]() Both the 18Z and 00Z GFS operational runs went for very cold NEerlies by the middle of next week, and so far the 06Z seems to be evolving very similarly. With such cold air aloft and quite a long sea track over the North Sea, I imagine that eastern regions could see quite a bit of snow. But the air would have been warmed in its lowest layer by that longish sea track, so for places within a mile or two of the coast there might be a risk of it falling as rain or sleet. -- John Hall "Acting is merely the art of keeping a large group of people from coughing." Sir Ralph Richardson (1902-83) 12z still shows wintry showers setting in as early as Monday on the East Coast and there is the potential for more widespread snow to follow during the week. It's looking unfortunately likely that we're in for another cold spell that may well be still there in 10 days time. It's been a long winter even for us in balmy South Devon. The crocuses and the 6 daffodils which are in flower in my garden look like they may be in for a shock next week! The ECM 00z ensembles show a cooling trend from tomorrow, with cold weather right out past mid- month: ========== Long winter? How long do winters normally last with you Paul, it is only beginning of February! My garden is well and truly asleep, no sign of life whatsoever, which is as it should be in the depths of winter. Hopefully I won't have to mow my grass till April having last cut it at end of October, many bits are dying back and yellowing now after the snow and frost. Equally hopefully the daffodils will appear in last week of March (a little later than normal) as a few are still only barely poking through the soil. I think this final (yes final) third wave for southern Britain will be the snowiest and may last at least until the end of February. Will --- Hide quoted text - - Show quoted text - Down here on the coast in Dawlish, real winter is only occasional and has lasted for no longer a few days at a time since we moved here in 1998. It's one of the reasons we're here. As a result, this colder winter has seemed long. "Oooh I can't wait for spring, this winter's lasted ages" is what the dog-walking fraternity are saying and they're a good barometer! PS I know winter is the same length each year, but It feels like someone stuck an extra month in this one somewhere! It's not too long to spring, but it looks like we'll have to endure another cold spell first! Strangely this winter doesn't seem to have seemed particularly long to me - but that's probably because IMO the most depressing aspect of winter is the early sunset, and that's the same each year. So whatever the temperature does in the next week or so (and I'd welcome the promised cold spell) it feels like winter's slowly on the way out. Nick |
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