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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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#11
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![]() "T T" wrote in message ... winter ended 1st march, bigot boy And Spring starts on 21st March (the equinox). So what are the intervening 20 days classed as? jim, Northampton |
#12
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On Mar 12, 11:35*pm, "jbm" wrote:
"T T" wrote in message ... winter ended 1st march, bigot boy And Spring starts on 21st March (the equinox). So what are the intervening 20 days classed as? jim, Northampton "sprinter"? *)) The last few days' runs from the gfs are suggesting some warmer weather next week, albeit becoming more unsettled too. Keith's suggestion that weak zonality, combined with high pressure to our east, giving southerlies is exactly what the gfs is showing this morning, though the ECM has more mobile conditions at T+240. The gfs ens don't paint quite the same the same warmer picture past the 20th, as a result of that jet still staying to our south. Hopefully some better conditions in the east, for a while, from today. |
#13
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yawn
Dawlish wrote: On Mar 12, 11:35 pm, "jbm" wrote: "T T" wrote in message ... winter ended 1st march, bigot boy And Spring starts on 21st March (the equinox). So what are the intervening 20 days classed as? jim, Northampton "sprinter"? *)) The last few days' runs from the gfs are suggesting some warmer weather next week, albeit becoming more unsettled too. Keith's suggestion that weak zonality, combined with high pressure to our east, giving southerlies is exactly what the gfs is showing this morning, though the ECM has more mobile conditions at T+240. The gfs ens don't paint quite the same the same warmer picture past the 20th, as a result of that jet still staying to our south. Hopefully some better conditions in the east, for a while, from today. |
#14
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weekdays and weekends
jbm wrote: "T T" wrote in message ... winter ended 1st march, bigot boy And Spring starts on 21st March (the equinox). So what are the intervening 20 days classed as? jim, Northampton |
#15
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In article ,
jbm writes: "T T" wrote in message ... winter ended 1st march, bigot boy And Spring starts on 21st March (the equinox). So what are the intervening 20 days classed as? jim, Northampton This seems to crop up every year. British meteorologists and climatologists take winter as the months of December, January and February and spring as March, April and May. That seems eminently sensible to me. Using complete months makes calculating averages for each season simpler, and also on average the first three weeks of March are warmer than the first three weeks of December. There's no good reason why spring should be considered to begin at the Vernal Equinox, at least as far as weather and climate are concerned. -- John Hall "Acting is merely the art of keeping a large group of people from coughing." Sir Ralph Richardson (1902-83) |
#16
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![]() "Dawlish" wrote in message ... On Mar 12, 11:35 pm, "jbm" wrote: "T T" wrote in message ... winter ended 1st march, bigot boy And Spring starts on 21st March (the equinox). So what are the intervening 20 days classed as? jim, Northampton "sprinter"? *)) Or "wining"? jim, Northampton |
#17
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"John Hall" wrote in message
... This seems to crop up every year. British meteorologists and climatologists take winter as the months of December, January and February and spring as March, April and May. That seems eminently sensible to me. Using complete months makes calculating averages for each season simpler, and also on average the first three weeks of March are warmer than the first three weeks of December. There's no good reason why spring should be considered to begin at the Vernal Equinox, at least as far as weather and climate are concerned. -- I would have thought February 5th would have been the ideal date. It is half way between the solstice and equinox, so using that as a base line, mid-summers day, 21st June or the summer solstice, would then be literally mid-summer. It brings Mr Spock to mind. Nothing humans do is ever logical. jim, Northampton |
#18
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On Mar 13, 11:40*pm, "jbm" wrote:
"John Hall" wrote in message ... This seems to crop up every year. British meteorologists and climatologists take winter as the months of December, January and February and spring as March, April and May. That seems eminently sensible to me. Using complete months makes calculating averages for each season simpler, and also on average the first three weeks of March are warmer than the first three weeks of December. There's no good reason why spring should be considered to begin at the Vernal Equinox, at least as far as weather and climate are concerned. -- I would have thought February 5th would have been the ideal date. It is half way between the solstice and equinox, so using that as a base line, mid-summers day, 21st June or the summer solstice, would then be literally mid-summer. It brings Mr Spock to mind. Nothing humans do is ever logical. jim, Northampton Looks like the "while" in the title could be disappointingly short. Although both the gfs 06z and the ECM 00z both show mild conditions at 10 days, they are also on the warm side of the ensemble means; the ECM especially so and it is a warm outlier. GEM shows westerly flows which may end up closer to what we actually get, rather than the mild southerlies of the gfs and ECM operationals: http://www.meteogroup.co.uk/uk/home/..._forecast.html http://www.netweather.tv/index.cgi?a...nsviewer;sess= I wouldn't despair about the cooler possibilities, as there is that agreement between the two models, but that would have to be translated into a few consecutive milder runs for me to be interested. I'm still happy about my 10-day forecast for Friday, but there could be another cooling soon afterwards. |
#19
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On Mar 14, 12:47*pm, Dawlish wrote:
On Mar 13, 11:40*pm, "jbm" wrote: "John Hall" wrote in message .. . This seems to crop up every year. British meteorologists and climatologists take winter as the months of December, January and February and spring as March, April and May. That seems eminently sensible to me. Using complete months makes calculating averages for each season simpler, and also on average the first three weeks of March are warmer than the first three weeks of December. There's no good reason why spring should be considered to begin at the Vernal Equinox, at least as far as weather and climate are concerned. -- I would have thought February 5th would have been the ideal date. It is half way between the solstice and equinox, so using that as a base line, mid-summers day, 21st June or the summer solstice, would then be literally mid-summer. It brings Mr Spock to mind. Nothing humans do is ever logical. jim, Northampton Looks like the "while" in the title could be disappointingly short. Although both the gfs 06z and the ECM 00z both show mild conditions at 10 days, they are also on the warm side of the ensemble means; the ECM especially so and it is a warm outlier. GEM shows westerly flows which may end up closer to what we actually get, rather than the mild southerlies of the gfs and ECM operationals: http://www.meteogroup.co.uk/uk/home/...semble_forecas... http://www.netweather.tv/index.cgi?a...nsviewer;sess= I wouldn't despair about the cooler possibilities, as there is that agreement between the two models, but that would have to be translated into a few consecutive milder runs for me to be interested. I'm still happy about my 10-day forecast for Friday, but there could be another cooling soon afterwards.- Hide quoted text - - Show quoted text - A turn for the more unsettled on the 12z ECM and even March snow in a freezing easterly if you believe the 12z gfs! It'll be a rank cold outlier at 10 days, but it hints at what the ensemble mean has been showing. |
#20
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On Mar 14, 7:16*pm, Dawlish wrote:
On Mar 14, 12:47*pm, Dawlish wrote: On Mar 13, 11:40*pm, "jbm" wrote: "John Hall" wrote in message .. . This seems to crop up every year. British meteorologists and climatologists take winter as the months of December, January and February and spring as March, April and May. That seems eminently sensible to me. Using complete months makes calculating averages for each season simpler, and also on average the first three weeks of March are warmer than the first three weeks of December. There's no good reason why spring should be considered to begin at the Vernal Equinox, at least as far as weather and climate are concerned. -- I would have thought February 5th would have been the ideal date. It is half way between the solstice and equinox, so using that as a base line, mid-summers day, 21st June or the summer solstice, would then be literally mid-summer. It brings Mr Spock to mind. Nothing humans do is ever logical. jim, Northampton Looks like the "while" in the title could be disappointingly short. Although both the gfs 06z and the ECM 00z both show mild conditions at 10 days, they are also on the warm side of the ensemble means; the ECM especially so and it is a warm outlier. GEM shows westerly flows which may end up closer to what we actually get, rather than the mild southerlies of the gfs and ECM operationals: http://www.meteogroup.co.uk/uk/home/...semble_forecas... http://www.netweather.tv/index.cgi?a...nsviewer;sess= I wouldn't despair about the cooler possibilities, as there is that agreement between the two models, but that would have to be translated into a few consecutive milder runs for me to be interested. I'm still happy about my 10-day forecast for Friday, but there could be another cooling soon afterwards.- Hide quoted text - - Show quoted text - A turn for the more unsettled on the 12z ECM and even March snow in a freezing easterly if you believe the 12z gfs! It'll be a rank cold outlier at 10 days, but it hints at what the ensemble mean has been showing.- Hide quoted text - - Show quoted text - Sorry, I should have it checked before posting. The 12z wintry gfs operational was a dreadful cold outlier, but the mean shows a return to some cooler conditions after Friday and that lack of warmth continuing right to the end of the month. Lots of cold members and no particularly mild ones at all. http://www.netweather.tv/index.cgi?a...nsviewer;sess= |
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