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Ally Pally Snowman
21 December 2015 07:01:04


More ridiculous warmth from the ECM next week, strong SW winds and the Euro High.


 


 


Originally Posted by: Shropshire 


 


Yes when will it end! Chances of a cold spell in the next 2 weeks less than 5% this morning. The ECM run must give us a chance of a 10c cet. 


http://www.wetterzentrale.de/pics/Recm2162.html


 


Bishop's Stortford 85m ASL.
Nick Gilly
21 December 2015 07:10:31

The GFS has the 564 line hitting New England and Nova Scotia on Wednesday!

White Meadows
21 December 2015 07:13:33
Cold options may reappear in the coming days but it does seem unlikely with the strength of the jet.
nsrobins
21 December 2015 07:43:33
Not sure why the gloom has reappeared as to my seasoned eye there is still a decent chance of a SH. The MEAN solution at 192 on the 00Z GFS is very interesting as it illustrates how many of the members develop a decent height rise to the NE encouraged no doubt by the WAA push. Except in a few runs the cold uppers don't quite make it across the sea but the potential is there and a few tweaks and we could be OK.
Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Retron
21 December 2015 07:47:51

Not sure why the gloom has reappeared as to my seasoned eye there is still a decent chance of a SH. The MEAN solution at 192 on the 00Z GFS is very interesting as it illustrates how many of the members develop a decent height rise to the NE encouraged no doubt by the WAA push. Except in a few runs the cold uppers don't quite make it across the sea but the potential is there and a few tweaks and we could be OK.

Originally Posted by: nsrobins 


Oh, you know the way things are: one cold op and it's clearly wrong, but one very mild op and it's absolutely 100% correct!


That said, although heights will almost certainly be rising to the NE and it's quite likely a discrete high will form there, actually getting the cold stuff on its southern flank pushed far enough westwards is a much harder task. At the moment it's not the form horse, but as long as it's showing on the odd ensemble member there's a chance, no matter how small!


 


Leysdown, north Kent
Shropshire
21 December 2015 08:07:59


 


Oh, you know the way things are: one cold op and it's clearly wrong, but one very mild op and it's absolutely 100% correct!


That said, although heights will almost certainly be rising to the NE and it's quite likely a discrete high will form there, actually getting the cold stuff on its southern flank pushed far enough westwards is a much harder task. At the moment it's not the form horse, but as long as it's showing on the odd ensemble member there's a chance, no matter how small!


 


Originally Posted by: Retron 


 


I think that's because we have seen the models pick out lots of very mild days 8-10 days before hand and they have verified.


From December 27th 2020, zonality will be banned from mixing with the UK. We appreciate that this may come as a shock to younger people and old Uncle Barty. This ban will last for a minimum of ten days.
Gooner
21 December 2015 08:08:04


More ridiculous warmth from the ECM next week, strong SW winds and the Euro High.


 


 


Originally Posted by: Shropshire 



This the GFS temp chart...........................ridiculous  warmth ??? where?????


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Gooner
21 December 2015 08:13:39


Doesnt take much to get this in a favourable position


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Gooner
21 December 2015 08:16:50


I just see it as a long way back if we get to there, everything is in the wrong place for cold to get to the UK. The low pressure blues to the NW are as monstrous as I've ever seen


 


Shropshire any chance of a reply


 




 


Please explain ,  everything is in the 'wrong place' .


The LP blues to the NW are as monstrous as you've seen????


 


 


Cheers


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Chiltern Blizzard
21 December 2015 08:20:29


 



This the GFS temp chart...........................ridiculous  warmth ??? where?????


Originally Posted by: Gooner 


double digits at midnight on the 30th would be pretty ridiculous in any other year!


Rendlesham, Suffolk 20m asl
Gooner
21 December 2015 08:27:46


 


double digits at midnight on the 30th would be pretty ridiculous in any other year!


Originally Posted by: Chiltern Blizzard 


I wouldn't use the words " ridiculous warmth " though


 


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Shropshire
21 December 2015 08:28:31




I just see it as a long way back if we get to there, everything is in the wrong place for cold to get to the UK. The low pressure blues to the NW are as monstrous as I've ever seen


 


Shropshire any chance of a reply


 




 


Please explain ,  everything is in the 'wrong place' .


The LP blues to the NW are as monstrous as you've seen????


 


 


Cheers


Originally Posted by: Gooner 


 


The ECM chart would have minimums of about 13c at midnight I would guess !


 


My understanding is that if you have the high to the East, then the jet can't pass the meridian so you are in a permanent W/SW flow, and you cannot get the colder air here because the High can't move West because of the deep lows to the NW , so its a no win situation for us. I'm sure someone more experienced could explain it better !


From December 27th 2020, zonality will be banned from mixing with the UK. We appreciate that this may come as a shock to younger people and old Uncle Barty. This ban will last for a minimum of ten days.
Ally Pally Snowman
21 December 2015 08:36:18

Not sure why the gloom has reappeared as to my seasoned eye there is still a decent chance of a SH. The MEAN solution at 192 on the 00Z GFS is very interesting as it illustrates how many of the members develop a decent height rise to the NE encouraged no doubt by the WAA push. Except in a few runs the cold uppers don't quite make it across the sea but the potential is there and a few tweaks and we could be OK.

Originally Posted by: nsrobins 


 


Fair enough the GFS Op almost gets there but the GFS and ecm ensembles paint a very mild picture that and the Met long range forecast staying mild the chances of a cold spell anytime soon are very low.


 


 


Bishop's Stortford 85m ASL.
Gooner
21 December 2015 08:36:33


 


 


The ECM chart would have minimums of about 13c at midnight I would guess !


 


My understanding is that if you have the high to the East, then the jet can't pass the meridian so you are in a permanent W/SW flow, and you cannot get the colder air here because the High can't move West because of the deep lows to the NW , so its a no win situation for us. I'm sure someone more experienced could explain it better !


Originally Posted by: Shropshire 


Its 9 days away for starters


Darren could , very well I should imagine.


But what you are saying is, nothing can ever change this Winter because of the set up we are currently in, that just doesnt make sense.


What did you mean about monstrous blues???


 


 


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Shropshire
21 December 2015 08:37:33


 


 


Fair enough the GFS Op almost gets there but the GFS and ecm ensembles paint a very mild picture that and the Met long range forecast staying mild the chances of a cold spell anytime soon are very low.


 


 


Originally Posted by: Ally Pally Snowman 


 


Yes the METO outlook into January backs up the ECM, if anything the METO seem to be underdoing the mildness.


From December 27th 2020, zonality will be banned from mixing with the UK. We appreciate that this may come as a shock to younger people and old Uncle Barty. This ban will last for a minimum of ten days.
GIBBY
21 December 2015 08:58:09

The problem is for those looking at the development of High pressure to the East and perhaps Scandinavia the Jet flow remains riding over the top of the High due to the strong and deep trough to the NW of the UK which others have mentioned. This means that with heights still high over the Med and Iberia we have just one outcome and that maintains the generally mild and changeable theme for the foreseeable as far as I can tell today. Yesterday did show the chance of some undercutting of Atlantic Low pressure beneath the developed High over Europe but that chance has evaporated again today. I think a record December CET is inevitable now and I can see this theme lasting up to and into the New year before any significant change. 


I know some people don't rate the ECM 10 day Mean Chart but I fine it as good a guide as any and over the last month it has been 100% right in maintaining the look it still has this morning with Low pressure up to the NW and High over Southern and Eastern Europe keeping mild and balmy SW winds across the UK with rain at times. While it's own Operational model has wobbled from this pattern at times the Mean Chart has not wavoured so I can say with some confidence that it will be some considerable time before much in the way of change is likely.


Martin G
Kilmersdon Radstock Bath Somerset



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Shropshire
21 December 2015 09:02:03


The problem is for those looking at the development of High pressure to the East and perhaps Scandinavia the Jet flow remains riding over the top of the High due to the strong and deep trough to the NW of the UK which others have mentioned. This means that with heights still high over the Med and Iberia we have just one outcome and that maintains the generally mild and changeable theme for the foreseeable as far as I can tell today. Yesterday did show the chance of some undercutting of Atlantic Low pressure beneath the developed High over Europe but that chance has evaporated again today. I think a record December CET is inevitable now and I can see this theme lasting up to and into the New year before any significant change. 


I know some people don't rate the ECM 10 day Mean Chart but I fine it as good a guide as any and over the last month it has been 100% right in maintaining the look it still has this morning with Low pressure up to the NW and High over Southern and Eastern Europe keeping mild and balmy SW winds across the UK with rain at times. While it's own Operational model has wobbled from this pattern at times the Mean Chart has not wavoured so I can say with some confidence that it will be some considerable time before much in the way of change is likely.


Originally Posted by: GIBBY 


 


Thanks, the last bit sums up my thoughts. In terms of cold, we are down at the bottom of the pit right now.


From December 27th 2020, zonality will be banned from mixing with the UK. We appreciate that this may come as a shock to younger people and old Uncle Barty. This ban will last for a minimum of ten days.
Whether Idle
21 December 2015 09:05:22



Doesnt take much to get this in a favourable position


Originally Posted by: Gooner 


Yes, we need to be lucky and get an undercut and a trigger low.  Unlikely but not entirely impossible.


Dover, 5m asl. Half a mile from the south coast.
Gooner
21 December 2015 09:16:30


 


 


Yes the METO outlook into January backs up the ECM, if anything the METO seem to be underdoing the mildness.


Originally Posted by: Shropshire 


Shropshire, it might seem I'm having a go at you , but your posts are very misleading.


Where is the outlook for January from ECM??


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Maunder Minimum
21 December 2015 09:28:23

I fully expect the whole of January to be a continuation of the mild crud we have experienced in December, since that is our lot in life.


However, it would not take much to change the outlook to cold and snowy - we are talking about charts where a small variation could have a massive impact locally over the UK, since these are not classic zonal charts, they are meridional. The trouble with meridional is that you have to be on the right side of the equation - a few hundred miles one way or the other makes the difference between mild gunk and winter heaven in these situations.


New world order coming.
Shropshire
21 December 2015 09:34:25


 


Shropshire, it might seem I'm having a go at you , but your posts are very misleading.


Where is the outlook for January from ECM??


Originally Posted by: Gooner 


Well of course it only goes to DEC 31 but as Gibby and others have said the pattern is so poor that you can assume that the route to any cold would be a long one from the poor position, taking us well into Jan


From December 27th 2020, zonality will be banned from mixing with the UK. We appreciate that this may come as a shock to younger people and old Uncle Barty. This ban will last for a minimum of ten days.
Brian Gaze
21 December 2015 09:36:00

As Murray Walker sort of said, "anything can happen and it probably will" but in the UK you discount the mild outcome at your peril. 


Brian Gaze
Berkhamsted
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"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan
doctormog
21 December 2015 09:37:36


 


Well of course it only goes to DEC 31 but as Gibby and others have said the pattern is so poor that you can assume that the route to any cold would be a long one from the poor position, taking us well into Jan


Originally Posted by: Shropshire 


Any comment on the spread and confidence limits from day 5 or 6? You may be confident, the ECM is not and that is only in the six to ten day period never mind  beyond 10 days or up to 40 days!


doctormog
21 December 2015 09:41:55


As Murray Walker sort of said, "anything can happen and it probably will" but in the UK you discount the mild outcome at your peril. 


Originally Posted by: Brian Gaze 


I'm not sure anyone is discounting the mild outcome as it is a very realistic possibility. However despite the model output some seem to be discounting the possisilibilty of any other outcome for weeks.


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