Joe Bloggs
20 November 2017 22:04:08

Gets better and better


http://www.wetterzentrale.de/maps/GFSOPEU18_120_1.png


Saturday could be wintry, especially to high ground in western Scotland, Northern Ireland, NW England.


Uppers look conducive to snow, maybe not quite cold enough to low levels. Buxton for example looks likely to get clobbered if this run verifies. 



Manchester City Centre, 31m ASL

Joe Bloggs
20 November 2017 22:15:51

I’m talking to myself but I’ll carry on..


http://www.wetterzentrale.de/maps/GFSOPEU18_159_1.png


A potential snow risk here as a little disturbance pushes into a cold pool. No point looking any further. 


Lots to keep us on our toes. Fingers crossed for no downgrades tomorrow 😀. 


 



Manchester City Centre, 31m ASL

picturesareme
20 November 2017 22:17:32
Still nothing of interest for those South of the M4.. Enjoying the low teens in the meantime
Brian Gaze
20 November 2017 22:20:37

Originally Posted by: picturesareme 

Still nothing of interest for those South of the M4.. Enjoying the low teens in the meantime


A long feed northerly can deliver daytime temps of +7C or higher on the south coast in January so you are right. However I'm hopeful of seeing falling snow here within the next 10 days.


Brian Gaze
Berkhamsted
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picturesareme
20 November 2017 22:27:27

Originally Posted by: Brian Gaze 


 


A long feed northerly can deliver daytime temps of +7C or higher on the south coast in January so you are right. However I'm hopeful of seeing falling snow here within the next 10 days.



Easiy 7C in January and as for snow... One would be best to forget about it if you live more central to the south of the M4 - highly unlikely. Just chill winds and sunny days followed by overnight frosts.

doctormog
20 November 2017 22:31:54
Thankfully life exists in the hundreds of miles north of the M4 and it looks especially cool at times northwest of the M80. Further down the line something a bit more anticylonic seems possible
picturesareme
20 November 2017 22:37:52

Originally Posted by: doctormog 

Thankfully life exists in the hundreds of miles north of the M4 and it looks especially cool at times northwest of the M80. Further down the line something a bit more anticylonic seems possible


Don't we just know it come summer time 😎😁 

doctormog
20 November 2017 22:41:44

I didn’t realise the output went that far out.

Looks like a pub run FI reload for some eye candy http://www.wetterzentrale.de/maps/GFSOPEU18_264_1.png


http://www.wetterzentrale.de/maps/GFSOPEU18_288_1.png http://www.wetterzentrale.de/maps/GFSOPEU18_324_1.png 


Gooner
20 November 2017 22:47:04

More than happy with the 18z 


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


ballamar
20 November 2017 22:52:58
Cold spell looking more and more likely - perhaps even leading to deep cold further down the line. 15/16 Wednesday followed by maybe 10 deg drop by Saturday. North could have some snow by the weekend!
tallyho_83
20 November 2017 23:20:26

Originally Posted by: Gooner 


More than happy with the 18z 



But will they deliver what is shown or will we just see downgrades like last Winter!?


After last winter's GFS model fiasco & flips etc - This winter, I am much more skeptical about taking things seriously for anything after +120 hrs. That being said the GFS are turning colder after a few milder if not warm days until this Friday. This is also backed up by the BBC Monthly and Met Office. Let's see if this trend toward colder weather continues!?


What's different about this is that we have a strong Greenland HP block which was what we lacked last winter. Also it's very early in the season to be seeing such a block of 1045mb over Greenland is it not? Usually is more common in Jan or Feb?


Home Location - Kellands Lane, Okehampton, Devon (200m ASL)
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Gandalf The White
20 November 2017 23:26:13

Originally Posted by: ballamar 

Cold spell looking more and more likely - perhaps even leading to deep cold further down the line. 15/16 Wednesday followed by maybe 10 deg drop by Saturday. North could have some snow by the weekend!


Certainly the ECM 12z ensemble suite has moved decisively towards an extended cold spell tonight - but of course it could flip again in the medium range.


 



The main cluster predicts maxima of around 4-5C.


Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


fairweather
21 November 2017 00:12:04
After several days showing a lot of uncertainty after November 25th the 18z GFS 850 hPa ensemble is starting to show a degree of agreement for a trend to much colder weather after that. Long time to go but much closer clustering.
S.Essex, 42m ASL
David M Porter
21 November 2017 00:32:46

Models are looking not too bad re the chances of the cold spell on the face if it, but I would urge a degree of caution after all that has happened in the past week. As others have said in recent days, we can only really start being confident about a cold spell being likely once it comes within the T92/T120 range in the model output.


If the models are still looking promising in this regard come next weekend, I'll start to feel a bit more confident.


Lenzie, Glasgow

"Let us not take ourselves too seriously. None of us has a monopoly on wisdom, and we must always be ready to listen and respect other points of view."- Queen Elizabeth II 1926-2022
Rob K
21 November 2017 07:00:13

Originally Posted by: David M Porter 


Models are looking not too bad re the chances of the cold spell on the face if it, but I would urge a degree of caution after all that has happened in the past week. As others have said in recent days, we can only really start being confident about a cold spell being likely once it comes within the T92/T120 range in the model output.


If the models are still looking promising in this regard come next weekend, I'll start to feel a bit more confident.



Next weekend? If the models are right then the cold will already be here by then!


 


GFS 00Z still going to an almost nationwide snowfall on Saturday: https://www.theweatheroutlook.com/twodata/gfs.aspx?run=00&charthour=108&chartname=preciptype&chartregion=uk&charttag=Precip%20type


 


Yateley, NE Hampshire, 73m asl
"But who wants to be foretold the weather? It is bad enough when it comes, without our having the misery of knowing about it beforehand." — Jerome K. Jerome
nsrobins
21 November 2017 07:09:21
In small increments the outlook continues to look increasingly colder for the UK, with an impressive close cluster of ENS members showing 850s well below the long term mean going forward.
Then we have the small matter of Saturday and GFS and UKM developing a runner that zips across the south (ECM not so keen but this might be the chart time intervals). Snow likely across high ground especially of Wales and n England.
Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
NickR
21 November 2017 07:49:58

Originally Posted by: Rob K 


 


Next weekend? If the models are right then the cold will already be here by then!


 


GFS 00Z still going to an almost nationwide snowfall on Saturday: https://www.theweatheroutlook.com/twodata/gfs.aspx?run=00&charthour=108&chartname=preciptype&chartregion=uk&charttag=Precip%20type


 



Northward shift compared to yesterday's runs.


Nick
Durham
[email protected]
Crepuscular Ray
21 November 2017 07:55:51

Originally Posted by: ballamar 

Cold spell looking more and more likely - perhaps even leading to deep cold further down the line. 15/16 Wednesday followed by maybe 10 deg drop by Saturday. North could have some snow by the weekend!


The Highlands have done well for snow already with several bouts down to 300m. Yesterday there were images of widespread snow North of Perth. Not many TWO members up there though!


Jerry
Edinburgh, in the frost hollow below Blackford Hill
ballamar
21 November 2017 08:12:12

Originally Posted by: Crepuscular Ray 


 


The Highlands have done well for snow already with several bouts down to 300m. Yesterday there were images of widespread snow North of Perth. Not many TWO members up there though!



 


oops should have said more snow!

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