The Weather Outlook

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doctormog
01 January 2026 10:52:37
I have not much to add to what others have already said. Cold and for some the chance of snow in the short term and uncertainty in the medium to longer term with milder and cold options on the table. I wouldn’t like to say which is more likely at the moment based on current output.

The very subtle downward tweaks in the ensemble data continue in the short term with the mean t850 hPa here bottoming out at -12.0°C on Saturday night on the 06z GEFS set.


01 January 2026 10:56:46
Snow disposition in 48hrs after the 6z GFS op run.  The Gorms and the northern Highlands gobbling up much of the snow.

https://www.meteociel.fr/modeles/gfs/royaume-uni/hauteur-neige/48h.htm 

The Beast from the East
01 January 2026 11:07:30
GEFS remain poor. Can we blame lack of data?!  
Purley, Surrey, 70m ASL

"We have some alternative facts for you"

Kelly-Ann Conway - former special adviser to the President

01 January 2026 11:12:27
Fax charts  from 0z this morning

https://www.meteociel.fr/modeles/ukmo2.php?ech=24&carte=2000 

Some Pembrokeshire Dangler action so could be some copious snow totals over the Moors of the far southwest and most specifically the Preseli Hills by Sunday morning.

Ally Pally Snowman
01 January 2026 11:36:01
Another stonker from the AIFS 6z also another easterly.  
Bishop's Stortford 85m ASL.
The Beast from the East
01 January 2026 11:42:33

Another stonker from the AIFS 6z also another easterly.  

Originally Posted by: Ally Pally Snowman 

last nights one was the coldest member, which gave false hope


Purley, Surrey, 70m ASL

"We have some alternative facts for you"

Kelly-Ann Conway - former special adviser to the President

Ally Pally Snowman
01 January 2026 11:43:34
2 week freeze up from AIFS 6z multiple ice days and snow events. Doesn't get any better  than that.  
Bishop's Stortford 85m ASL.
Brian Gaze
01 January 2026 11:43:34
At a glance, the main "development" I can see this morning is the consistency between the GEFS, ECMWF IFS and ECMWF AIFS ensembles. 
Brian Gaze

Berkhamsted

TWO Buzz - get the latest news and views 

"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan

The Beast from the East
01 January 2026 11:44:00

Fax charts  from 0z this morning

https://www.meteociel.fr/modeles/ukmo2.php?ech=24&carte=2000 

Some Pembrokeshire Dangler action so could be some copious snow totals over the Moors of the far southwest and most specifically the Preseli Hills by Sunday morning.

Originally Posted by: Man For All Seasons 

GFS 06z says rain here.  Feels quite mild out there now despite being supposedly under deep cold uppers.  I guess this is the modern winter in action. 


Purley, Surrey, 70m ASL

"We have some alternative facts for you"

Kelly-Ann Conway - former special adviser to the President

Matty H
01 January 2026 11:57:03

Fax charts  from 0z this morning

https://www.meteociel.fr/modeles/ukmo2.php?ech=24&carte=2000 

Some Pembrokeshire Dangler action so could be some copious snow totals over the Moors of the far southwest and most specifically the Preseli Hills by Sunday morning.

Originally Posted by: Man For All Seasons 

Not according to yesterday’s MetO deep dive (excellent if you’ve not seen it) very little anywhere in the South West or anywhere west. Did mention the possibility of a “bit on the top of Dartmoor”


Yate, Nr Bristol

TBFTEIARBSC

tallyho_83
01 January 2026 12:38:20
The 06z GFS ENS have trended colder in short term. The 850hpa mean for London at 06:00 +72z is a very cold -11.1c and at midday it is -10.7c- just saying...

Shame there won't be any snow with this but could be the coldest winters day in several years!? - An average ENS daytime max of 0.6c for the capital?

https://www.wetterzentrale.de/en/show_diagrams.php?geoid=49068&model=gfs&var=2&run=06&lid=ENS&bw=1 


Home Location - Vixen Tor Close, Okehampton, Devon (221m ASL)

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Sean Moon

Magical Moon

www.magical-moon.com

tallyho_83
01 January 2026 12:41:42

2 week freeze up from AIFS 6z multiple ice days and snow events. Doesn't get any better  than that.  

Originally Posted by: Ally Pally Snowman 

On a serious note - how seriously does one take these AI models? - @270z the -10c over most of country and -12 to -14c uppers just to the SE.

UserPostedImage


Home Location - Vixen Tor Close, Okehampton, Devon (221m ASL)

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Sean Moon

Magical Moon

www.magical-moon.com

Ally Pally Snowman
01 January 2026 12:52:25

On a serious note - how seriously does one take these AI models? - @270z the -10c over most of country and -12 to -14c uppers just to the SE.

UserPostedImage

Originally Posted by: tallyho_83 

AIFS is the best performing model statistically.  So very seriously. 

AIFS has produced 3 snowfests in a row . Let's hope it's onto something. 


Bishop's Stortford 85m ASL.
Rob K
01 January 2026 12:55:26

The 06z GFS ENS have trended colder in short term. The 850hpa mean for London at 06:00 +72z is a very cold -11.1c and at midday it is -10.7c- just saying...

Shame there won't be any snow with this but could be the coldest winters day in several years!? - An average ENS daytime max of 0.6c for the capital?

https://www.wetterzentrale.de/en/show_diagrams.php?geoid=49068&model=gfs&var=2&run=06&lid=ENS&bw=1 

Originally Posted by: tallyho_83 

6Z GEFS have also trended colder in the longer term with several more cold runs around the 10th to 12th. Still lots of scatter but the cold runs are starting to dominate. p13 is a nice example. 


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

tallyho_83
01 January 2026 14:25:34

6Z GEFS have also trended colder in the longer term with several more cold runs around the 10th to 12th. Still lots of scatter but the cold runs are starting to dominate. p13 is a nice example. 

Originally Posted by: Rob K 

How do I find the GEFS?


Home Location - Vixen Tor Close, Okehampton, Devon (221m ASL)

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Sean Moon

Magical Moon

www.magical-moon.com

Gandalf The White
01 January 2026 14:48:30

How do I find the GEFS?

Originally Posted by: tallyho_83 

I use this:

https://www.meteociel.fr/modeles/ensembles.php 

It gives easy access to the ensembles for GFS, ECM, Mogreps and others.  You can choose any location by touching the maps.


Location: South Cambridgeshire

130 metres ASL

52.0N 0.1E



Brian Gaze
01 January 2026 14:49:22

How do I find the GEFS?

Originally Posted by: tallyho_83 

TWO GEFS viewer is:

https://www.theweatheroutlook.com/twodata/gefs.aspx 


Brian Gaze

Berkhamsted

TWO Buzz - get the latest news and views 

"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan

doctormog
01 January 2026 15:24:33
A very interesting ICON 12z run so far. I won’t take much notice of it, unless it is followed by a similar picture from the other models.
western100
01 January 2026 15:44:00
ICON 12z does keep things cold throughout with no real energy coming off the Atlantic
Worcestershire / Warwickshire Border

100m ASL

X…..@Weather4u2

squish
01 January 2026 15:58:05
ICON has been quite consistent imho. That doesn’t mean it has modelled the right outcome though.  I think it’s all on a knife edge around +108/120.  

But isn’t it always in these scenarios ?


D.E.W on Dartmoor. 300m asl
squish
01 January 2026 16:00:28
UKMO at +120 looks ok 
D.E.W on Dartmoor. 300m asl
western100
01 January 2026 16:09:15
GFS looks very different at t106
Worcestershire / Warwickshire Border

100m ASL

X…..@Weather4u2

doctormog
01 January 2026 16:11:04
There are quite significant differences in the earlyish sections of all the 12z models that are out so far. More twists and turns to come by the look of things.
Brian Gaze
01 January 2026 16:15:43
Interesting GFS 12Z today.

UserPostedImage


Brian Gaze

Berkhamsted

TWO Buzz - get the latest news and views 

"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan

Ally Pally Snowman
01 January 2026 16:15:54
Both UKMO and GFS following AIFS lead. 👍
Bishop's Stortford 85m ASL.

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