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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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What I am saying here is in part a follow on of a comment along these lines
someone made a few days back. It is a good point. What I wish to say is that, yes we are now in our 19th year since we last had a winter month with a CET below 0C. That was February 1986. Our last CET below 0C before then was January 1979, only a 7 year gap. Before then we have to go back to February 1963 and of course January 1963, a gap of 16 years. So on that basis, yes we are due. Using the past century as a reference point here, just look how long we had to wait after February 1895 (CET -1.8). We had to wait until January 1940. That was a massive interlude of 45 years!! On that basis then we have a lot longer to wait before that interval is broken. Indeed we have to wait until 2031. After the cold winter of 1895 and that was cold. January of that year was just 0.2C. If there had been a cold December in 1894 ie like 1981, that winter would have been on a par with 1963 or jolly near to it. After the winter of 1895 things went very mild. We had the mildest January ever in 1916 (CET 7.5). January 1921 was a real mild one (CET 7.3) . Just a 5 year gap there. Sounds like the 1990s doesn't it?. Look at the winter of 1923 a trio of 5.5 pluses there - yet more mild ones. 1929 broke it a bit with a 1.3 and a 0.4. 1937 was another mild one like what we seem to be having now. 1940 kicked things off and must have been a real shock, even more so considering the war was on and fuel was rationed. To skip a long a bit; things cooled a bit in the 1960s and then we had the legendary mild winters of the 1970s which was my childhood and I lamented the lack of snow and completely characterless winters. I hated it. Things changed with the winter of 1978/79. Then we had December 1981. We did not have to wait long for another stunner of a cold spell. January 1982. Then we had the great zonal north westerlies of January 1984. I was at Lancaster university and that was the first time I had seen snow settle on a westerly. That some westerly though. Often a north westerly, but with some strength in it, and I mean strength. I also remember one HUGE gale. We had snow lie for over 10 days in that month. January 1985 and February 1985 delivered some decent snow and cold weather on easterlies. The following year another one. February 1986. But that had hardly any snow, just biting easterlies. Then the following year a cold spell to end all cold spells. January 1987. A daytime maximum of -8C in East Anglia followed by -14C that night. Things eased after what was apparently the coldest 48 hour period since January 1740. January 1987 ended with a CET of 0.8C. So that was a cold one. After that things went mild. I went to Australia for 3 and a half years and missed this mild stuff. I remember seeing, London 12C, in the papers or TV, for day after day after day, in most Januarys and Februarys. It seemed that winter had been abolished in Britain. The next cold spell was February 1991 a month after I returned from Australia and I nearly froze to death. That was a good snowfall here in East Anglia. In fact it was the last deep one I remember. After that that's it up to date. 1987 the last humdinger of a cold winter, with just an interruption by Feb 1991 seems to complete it. Yes we have had a very big run of mild winters. I have not had anything below -10C since Februarys 1991. December 1991 is my last -10C. Think of that big mild gap from 1895 to 1940. I still reckon things will swing back, but when is the very big question. I reckon we have a lot longer to go before the pendulum swings back, but when it does we will all be surprised. -- ************************************************** ********** Gavin Staples. Cambridge, UK. www.gavinstaples.com site regularly updated All outgoing emails are checked for viruses by Norton Internet Security 2005. ************************************************** ********** |
#2
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The pendulum will swing back Gavin - but perhaps the frequency has changed.
PS The winters of 95/96 & 00/01 were partly humdingers in this part of the country. So luck and location have a part to play in the statistics too. Alex. 1987 the last humdinger of a cold winter, with just an interruption by Feb 1991 seems to complete it. Yes we have had a very big run of mild winters. I have not had anything below -10C since Februarys 1991. December 1991 is my last -10C. Think of that big mild gap from 1895 to 1940. I still reckon things will swing back, but when is the very big question. I reckon we have a lot longer to go before the pendulum swings back, but when it does we will all be surprised. -- ************************************************** ********** Gavin Staples. Cambridge, UK. www.gavinstaples.com site regularly updated All outgoing emails are checked for viruses by Norton Internet Security 2005. ************************************************** ********** |
#3
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![]() "Gavin Staples" wrote in message ... As soon as you detect a cycle, it will then fail to repeat. Steve's Law #4 |
#4
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In article ,
Steve writes: As soon as you detect a cycle, it will then fail to repeat. Steve's Law #4 I think you're too late to claim that one. -- John Hall "I don't even butter my bread; I consider that cooking." Katherine Cebrian |
#5
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Hi Gavin
For what you say to hold true we have to assume that the overall picture has remained constant, but we know that it hasn't and global temperatures are higher now than at anytime since 1890. Therefore the basic background 'constant' has changed and what went before cannot be applied now. _______________________________ Nick Worcester 45 AMSL "Gavin Staples" wrote in message ... What I am saying here is in part a follow on of a comment along these lines someone made a few days back. It is a good point. What I wish to say is that, yes we are now in our 19th year since we last had a winter month with a CET below 0C. That was February 1986. Our last CET below 0C before then was January 1979, only a 7 year gap. Before then we have to go back to February 1963 and of course January 1963, a gap of 16 years. So on that basis, yes we are due. Using the past century as a reference point here, just look how long we had to wait after February 1895 (CET -1.8). We had to wait until January 1940. That was a massive interlude of 45 years!! On that basis then we have a lot longer to wait before that interval is broken. Indeed we have to wait until 2031. After the cold winter of 1895 and that was cold. January of that year was just 0.2C. If there had been a cold December in 1894 ie like 1981, that winter would have been on a par with 1963 or jolly near to it. After the winter of 1895 things went very mild. We had the mildest January ever in 1916 (CET 7.5). January 1921 was a real mild one (CET 7.3) . Just a 5 year gap there. Sounds like the 1990s doesn't it?. Look at the winter of 1923 a trio of 5.5 pluses there - yet more mild ones. 1929 broke it a bit with a 1.3 and a 0.4. 1937 was another mild one like what we seem to be having now. 1940 kicked things off and must have been a real shock, even more so considering the war was on and fuel was rationed. To skip a long a bit; things cooled a bit in the 1960s and then we had the legendary mild winters of the 1970s which was my childhood and I lamented the lack of snow and completely characterless winters. I hated it. Things changed with the winter of 1978/79. Then we had December 1981. We did not have to wait long for another stunner of a cold spell. January 1982. Then we had the great zonal north westerlies of January 1984. I was at Lancaster university and that was the first time I had seen snow settle on a westerly. That some westerly though. Often a north westerly, but with some strength in it, and I mean strength. I also remember one HUGE gale. We had snow lie for over 10 days in that month. January 1985 and February 1985 delivered some decent snow and cold weather on easterlies. The following year another one. February 1986. But that had hardly any snow, just biting easterlies. Then the following year a cold spell to end all cold spells. January 1987. A daytime maximum of -8C in East Anglia followed by -14C that night. Things eased after what was apparently the coldest 48 hour period since January 1740. January 1987 ended with a CET of 0.8C. So that was a cold one. After that things went mild. I went to Australia for 3 and a half years and missed this mild stuff. I remember seeing, London 12C, in the papers or TV, for day after day after day, in most Januarys and Februarys. It seemed that winter had been abolished in Britain. The next cold spell was February 1991 a month after I returned from Australia and I nearly froze to death. That was a good snowfall here in East Anglia. In fact it was the last deep one I remember. After that that's it up to date. 1987 the last humdinger of a cold winter, with just an interruption by Feb 1991 seems to complete it. Yes we have had a very big run of mild winters. I have not had anything below -10C since Februarys 1991. December 1991 is my last -10C. Think of that big mild gap from 1895 to 1940. I still reckon things will swing back, but when is the very big question. I reckon we have a lot longer to go before the pendulum swings back, but when it does we will all be surprised. -- ************************************************** ********** Gavin Staples. Cambridge, UK. www.gavinstaples.com site regularly updated All outgoing emails are checked for viruses by Norton Internet Security 2005. ************************************************** ********** |
#6
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![]() For what you say to hold true we have to assume that the overall picture has remained constant, but we know that it hasn't and global temperatures are higher now than at anytime since 1890. Therefore the basic background 'constant' has changed and what went before cannot be applied now. Also is not the opposite of this true, statistically - "Before then we have to go back to February 1963 and of course January 1963, a gap of 16 years. So on that basis, yes we are due." If we are in a mild trend isn't it less likely to happen than if we were in a cold trend, irrespective of what happened before. Dave |
#7
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![]() "John Hall" wrote in message ... In article , Steve writes: As soon as you detect a cycle, it will then fail to repeat. Steve's Law #4 I think you're too late to claim that one. -- Well yes, I've heard/read it or something akin to it before. Do you or anyone else have any idea who it is attribuled to originally? |
#8
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Hi Dave
Little bit confused about what you are trying to say. I just think that trying to predict future cold winters by using the past can only apply if the background (global) temperature remains the same. It hasn't and has been increasing overall. My only assumption is that random cold winters will become even more infrequent than they were in the past, possibly to the point at which they never occur at all or are a rare 'once in a lifetime event'. _______________________ Nick G Worcester 45m amsl "Dave.C" wrote in message ... For what you say to hold true we have to assume that the overall picture has remained constant, but we know that it hasn't and global temperatures are higher now than at anytime since 1890. Therefore the basic background 'constant' has changed and what went before cannot be applied now. Also is not the opposite of this true, statistically - "Before then we have to go back to February 1963 and of course January 1963, a gap of 16 years. So on that basis, yes we are due." If we are in a mild trend isn't it less likely to happen than if we were in a cold trend, irrespective of what happened before. Dave |
#9
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![]() "Nick G" wrote in message ... Hi Dave Little bit confused about what you are trying to say. Yes, not very well put! I think I was agreeing with you, maybe not all of Gavin's points. Dave |
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