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Ally Pally Snowman
06 January 2016 19:13:58


If this turns out correct, no shortwave is going to get through this!


 


http://www.meteociel.fr/modeles/ecmwf.php?ech=240&mode=101&map=0&type=0&archive=0


 


Originally Posted by: KevBrads1 


 


Thats just crazily good. 


Northern hemisphere view is a thing of beauty by day 10 dream charts.


http://www.wetterzentrale.de/pics/Recmnh2401.html


 


 


Bishop's Stortford 85m ASL.
doctormog
06 January 2016 19:14:01
Good positive trends from across the 12z runs this evening. A few more days of output like this would make things very interesting. Worth watching the models over the next 72hrs or so.
cultman1
06 January 2016 19:14:28
Lazy Wind your posts are such a tease!
Polar Low
06 January 2016 19:15:26

Amazing run ecm she is just leaving with her pet friend tonight 


 



 


 



More runs like ECM12z and people will start talking about 1947. Except starting 10 days earlier. 



Originally Posted by: Brian Gaze 

Arcus
06 January 2016 19:15:46

Just an observation, but the 12Z GFS ENS look like a slight easing off from the -8/-9 850s to -7/-8 for London. Probably not significant, and this sort of thing is to be expected imo but evidence that this cold spell is not nailed yet (at least in terms of uk wide snow potential), but it will almost certainly get much colder if you get my 'drift'.
Get it to +96 with all three mains in the party before dusting off the gloves.

Originally Posted by: nsrobins 


Indeed. Many, many times over the past 15 years we've seen these stellar charts moderate or even vanish completely as the timeframe marches towards us. Interesting model watching for sure, but it's still just that. Temper the excitement with realism. Chances look as good as I've seen them over the past few years,for a decent cold spell, but no bunting being hung just yet IMO.


Ben,
Nr. Easingwold, North Yorkshire
30m asl
Bertwhistle
06 January 2016 19:16:02


What a block!


http://www.meteociel.fr/modeles/ecmwf/runs/2016010612/ECH1-216.GIF?06-0


 


Originally Posted by: Maunder Minimum 


Different place, but similar shape?


http://www.wetterzentrale.de/topkarten/fsreaeur.html


Which led 4 days later to:


http://www.wetterzentrale.de/topkarten/fsreaeur.html


 


Bertie, Itchen Valley.
Retire while you can still press the 'retire now' button.
Solar Cycles
06 January 2016 19:17:32


Amazing run ecm she is just leaving with her pet friend tonight 


 



 


 


 


Originally Posted by: Polar Low 

This calls for an Ian Brown WTF moment.

Bertwhistle
06 January 2016 19:20:01


This calls for an Ian Brown WTF moment.


Originally Posted by: Solar Cycles 


Horses for courses. Most of us are excited about the models bearing all.


Bertie, Itchen Valley.
Retire while you can still press the 'retire now' button.
Gandalf The White
06 January 2016 19:20:22


 


 


Looks good enough to me. Approx 523dam 1000-850mb thickness even for me in central southern England and plenty of troughs in the flow.


Originally Posted by: Rob K 


Yes, but my point was that there was nothing there to suggest that the Met Office would be altering their forecast for next week.


On the other hand, the ECM 12z run..........


Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


squish
06 January 2016 19:22:44
My favourite chart tonight....and not from ECM!
http://www.wetterzentrale.de/pics/Rjma1921.gif 
D.E.W on Dartmoor. 300m asl
Bertwhistle
06 January 2016 19:23:19


 


Yes, but my point was that there was nothing there to suggest that the Met Office would be altering their forecast for next week.


On the other hand, the ECM 12z run..........


Originally Posted by: Gandalf The White 


They will properly alter their forecast for next week next week.


Bertie, Itchen Valley.
Retire while you can still press the 'retire now' button.
Solar Cycles
06 January 2016 19:25:06


 


Horses for courses. Most of us are excited about the models bearing all.


Originally Posted by: Bertwhistle 

It's an old joke regarding the 2009/10 cold spell over on Net Weather.


Stunning output this evening with a huge Greeny block forming and LP diving into Southern Europe. What would be amazing if we could see record breaking cold after the mildest December on record, now that would be a winter of two halves.

Polar Low
06 January 2016 19:26:59

Your point earlier Peter about the energy moving n/e is still a threat with that thrown up ridge japs shows your point very nicely



 


 


 


 


 



 


Yes, but my point was that there was nothing there to suggest that the Met Office would be altering their forecast for next week.


On the other hand, the ECM 12z run..........


Originally Posted by: Gandalf The White 

KevBrads1
06 January 2016 19:27:37

My favourite chart tonight....and not from ECM!
http://www.wetterzentrale.de/pics/Rjma1921.gif


Originally Posted by: squish 


I tell you what that is not far off the great Blizzard of 1881 chart. Needs the low to be deeper.


 


MANCHESTER SUMMER INDEX for 2021: 238
Timelapses, old weather forecasts and natural phenomena videos can be seen on this site
http://www.youtube.com/channel/UCgrSD1BwFz2feWDTydhpEhQ/playlists
The Beast from the East
06 January 2016 19:28:25

Nothing much to add other than it can only go downhill from here. Spoiler shortwaves and the curse of the Daily Express to come no doubt


As mentioned earlier Feb 2007  was the best example of an almost nailed  northerly that went t*ts up at +96


"We have some alternative facts for you"
Kelly-Ann Conway - special adviser to the President
nsrobins
06 January 2016 19:28:44
Well I've just had a decent look at the 12Z ECM +240 chart.
Bash, Bam, Boom (so they say).
I think I need to lie down for an hour - never seen a chart quite like that, virtual or otherwise.
Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Bertwhistle
06 January 2016 19:29:46


It's an old joke regarding the 2009/10 cold spell over on Net Weather.


Stunning output this evening with a huge Greeny block forming and LP diving into Southern Europe. What would be amazing if we could see record breaking cold after the mildest December on record, now that would be a winter of two halves.


Originally Posted by: Solar Cycles 


Yes very in house- but mine was a new joke regarding the homophones implied. Not very funny, I grant.  Now the split winter- now there's one to make us both chuckle.


Bertie, Itchen Valley.
Retire while you can still press the 'retire now' button.
Whether Idle
06 January 2016 19:32:41

Beware of models bearing gifts.  They say "come with me to the land of the 1060 Greenland High, the land of the undercutting channel low...da plane...da plane...."




Dover, 5m asl. Half a mile from the south coast.
GlenH
06 January 2016 19:33:11

At this stage I think it's worth comparing the GFS ensemble output to that a week or so before the nov/dec 2010 cold spell:


 


2010 (thanks Retron):



 


Now:


Polar Low
06 January 2016 19:34:35

Perhaps just perhaps extended cold to come


Embedded image permalink


 

Andy Woodcock
06 January 2016 19:34:51

Christ! Just looked at tonight's ECM and nearly fainted, the wife thought I was having a heart attack!


Should it verify we would be looking at a very special spell of weather.


Andy


Andy Woodcock
Penrith
Cumbria

Altitude 535 feet

"Why are the British so worried about climate change? Any change to their climate can only be an improvement" John Daley 2001
cultman1
06 January 2016 19:37:29
Beast ,are you teasing us, or are you on to something CONCRETE that this whole cold spell could (mostly) go down the pan and revert to/ or should I say continue with the current mild weather? We really need to post as far as we can ascertain, realistic weather expectencies based on the probable model output of the expected changes to next weeks weather rather than assume the models will flip as sometimes in the past to the last minute downgrades as I do appreciate can happen from time to time...
Bertwhistle
06 January 2016 19:38:39


At this stage I think it's worth comparing the GFS ensemble output to that a week or so before the nov/dec 2010 cold spell:


 


2010 (thanks Retron):



 


Now:



Originally Posted by: GlenH 


Love the way the mean goes up-and-down; meaning the mean means not much of use- not even an effective trend descriptor.


Bertie, Itchen Valley.
Retire while you can still press the 'retire now' button.
Fothergill
06 January 2016 19:42:13

November 27th 2010



ECM 12z day 10



Very similar aren't they?


 

Polar Low
06 January 2016 19:42:21

 But have a quick word with Steve for a quick look before everything goes *its up



Beware of models bearing gifts.  They say "come with me to the land of the 1060 Greenland High, the land of the undercutting channel low...da plane...da plane...."



Originally Posted by: Whether Idle 

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