The Weather Outlook

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Rob K
02 January 2026 16:30:48
A ridiculously snowy GFS run for the Highlands, a succession of heavy snowfalls over the next 10 days
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

Ally Pally Snowman
02 January 2026 16:40:38
squish
02 January 2026 16:41:36
UKMO and GEM have a deep channel low at +168
D.E.W on Dartmoor. 300m asl
Retron
02 January 2026 16:44:52
GEM and MetO also develop a deep low near our shores around 168. GEM is wet rather than white for the south, while MetO is a classic Channel Low, dumping lots of snow south of the M4.

https://images.meteociel.fr/im/87/7736/ukmo_1_168oqu0.png 

UserPostedImage

High stakes, and I wouldn't be at all surprised if come the day the low is hundreds of miles away instead.


Leysdown, north Kent
squish
02 January 2026 16:50:52
Yes…probably further south like ICON or further north like GFS
D.E.W on Dartmoor. 300m asl
Brian Gaze
02 January 2026 16:52:44

GEM and MetO also develop a deep low near our shores around 168. GEM is wet rather than white for the south, while MetO is a classic Channel Low, dumping lots of snow south of the M4.

https://images.meteociel.fr/im/87/7736/ukmo_1_168oqu0.png 

UserPostedImage

High stakes, and I wouldn't be at all surprised if come the day the low is hundreds of miles away instead.

Originally Posted by: Retron 

UK Met looks mostly rain according to the ppt variable.

UserPostedImage


Brian Gaze

Berkhamsted

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squish
02 January 2026 16:59:53
The moors would get a pasting …. But the wind may be a more general issue later next week 
D.E.W on Dartmoor. 300m asl
The Beast from the East
02 January 2026 17:03:01
poor runs so far. looks like the change we saw this morning is now real.  
Purley, Surrey, 70m ASL

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Rob K
02 January 2026 17:06:57

poor runs so far. looks like the change we saw this morning is now real.  

Originally Posted by: The Beast from the East 

Poor runs? Which charts have you been looking at? Some of the most interesting winter charts we've seen for a long while today!


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

doctormog
02 January 2026 17:07:26

poor runs so far. looks like the change we saw this morning is now real.  

Originally Posted by: The Beast from the East 

Which version? They’re all different so far.


Retron
02 January 2026 17:17:35

UK Met looks mostly rain according to the ppt variable.

Originally Posted by: Brian Gaze 

Interesting, not what I'd have expected given the 850s and direction of flow.

The dewpoint charts (via MC, don't think they've rendered yet on TWO?) show what's happened - the lower boundary layer's cold has been shunted away a long way eastwards in the 24 hours before the low arrives, meaning it's rain rather than snow for most. 

All moot, of course, as it's ages away, but it'd be disappointing (from a snow fan's POV) if it were to happen as shown. 


Leysdown, north Kent
02 January 2026 17:23:18
Great variety of outcomes, highly marginal.  My advice is not to look beyond 120.

Liking most of the models this evening but GFS control is favoured IMBY.

Beast, have you been on the Mogadon again?

Hippydave
02 January 2026 17:30:51

Interesting, not what I'd have expected given the 850s and direction of flow.

The dewpoint charts (via MC, don't think they've rendered yet on TWO?) show what's happened - the lower boundary layer's cold has been shunted away a long way eastwards in the 24 hours before the low arrives, meaning it's rain rather than snow for most. 

All moot, of course, as it's ages away, but it'd be disappointing (from a snow fan's POV) if it were to happen as shown. 

Originally Posted by: Retron 

It's quite amusing, if you looked at the GEM and UKMO and had to pick one that would snow IMBY, it wouldn't be GEM and yet that's the one that does (albeit temporarily before it rains and then it's back to snow again as the LP starts to pull away). 

Unlikely to verify as shown anyway as you mention but nothing so far this evening is making me rethink my stance that there's a decent chance of disruptive snow for somewhere post the clean northerly phase. The ops are largely suggesting it'll be a touch further north of us (shocker) but interesting viewing nonetheless.  (The ens this morning offered much more encouragement for those further south, I'd not be surprised if they did again this evening). 


Home: Tunbridge Wells

Work: Tonbridge

Rob K
02 January 2026 17:40:29
Looks like quite a shift to colder mean on the GEFS by 240 hours, compared to the 06Z.
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

Retron
02 January 2026 18:01:46
The 12z ECM has a front crossing much of the UK around 105, with a mess of rain, sleet and a little snow mixed in. The next push is at 168, with more in the way of snow - there's a good deal of snow for more northern regions, but it turns back to rain for many of us.

https://meteologix.com/uk/model-charts/euro/europe/significant-weather/20260109-0000z.html 

There's yet another frontal system crossing the UK around 228, with more sleet/snow on its leading edge.

https://meteologix.com/uk/model-charts/euro/europe/significant-weather/20260112-0000z.html 

A very messy picture from the models this evening, I wouldn't want to have to produce a forecast for the latter half of the working week!


Leysdown, north Kent
Retron
02 January 2026 18:09:51
Here's the "snow on the ground" chart from the ECM at 240. I've done it this way so that you can save it if needs be, for reference - the northern half of the UK is absolutely buried!

https://meteologix.com/uk/model-charts/euro/united-kingdom/snow-depth/20260112-1200z.html 

https://ukwct.org.uk/weather/ecm.jpg 

UserPostedImage


Leysdown, north Kent
Hippydave
02 January 2026 18:14:45

The 12z ECM has a front crossing much of the UK around 105, with a mess of rain, sleet and a little snow mixed in. The next push is at 168, with more in the way of snow - there's a good deal of snow for more northern regions, but it turns back to rain for many of us.

https://meteologix.com/uk/model-charts/euro/europe/significant-weather/20260109-0000z.html 

There's yet another frontal system crossing the UK around 228, with more sleet/snow on its leading edge.

https://meteologix.com/uk/model-charts/euro/europe/significant-weather/20260112-0000z.html 

A very messy picture from the models this evening, I wouldn't want to have to produce a forecast for the latter half of the working week!

Originally Posted by: Retron 

My opinion on it hasn't changed but the pattern matching version is fun too:-

Snow/rain moves down the country 6th and 7th (mostly snow in our neck of the woods).

A big rain/snow event on 9th Jan - rain to snow to rain for us, stays as snow for parts of northern England and Scotland.

Another rain/snow event on the 11th - rain down here, snow for northern England and Scotland (may show it turning back to rain, bit unclear).

Another rain/snow event on the 14th, snow for parts of Scotland, rain elsewhere. 

Another rain/snow event on the 17th, this time for Wales and parts of the Midlands. (Rain for us). 

The modelling manages to keep enough cold air to the north and east of the UK that the LPs tap in to it and/or drag it back over parts of the UK ready for the next LP. 

Mostly in FI etc. but again, shows the potential in the setup providing the LP track doesn't just bathe the UK in mild air. 


Home: Tunbridge Wells

Work: Tonbridge

Brian Gaze
02 January 2026 18:43:10
Here is the raw ppt output from the UK Met Global 12Z.

UserPostedImage


Brian Gaze

Berkhamsted

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Jiries
02 January 2026 18:49:55

Here's the "snow on the ground" chart from the ECM at 240. I've done it this way so that you can save it if needs be, for reference - the northern half of the UK is absolutely buried!

https://meteologix.com/uk/model-charts/euro/united-kingdom/snow-depth/20260112-1200z.html 

https://ukwct.org.uk/weather/ecm.jpg 

UserPostedImage

Originally Posted by: Retron 

i Just in the darker blue line as I am NE of Birmingham.  I wonder why the SW to far South got nothing when France all covered? If so SW should be also dark blue as well.  12z ensembles for Nuneaton still showing cold and slight spikes Sunday evening but I cannot be excited anymore after last night failure to deliver decent covering of 5cm or more.  I mainly after subzero day temps and snowy events, not sunny and dry with less cold day temps.

Dickieboy68
02 January 2026 19:29:18
It is very interesting model watching at the moment, the north-south track of the rain-snow line (admittedly, usually the M4) is all to play for. Remember the white Christmas model forecast, that went further and further south on a day-by-day basis until it missed everyone except for Jersey (first official white Christmas for them for many years - congrats). 

So, I wouldn't be surprised to see a southerly adjustment as we go on. 

However, the Christmas day weather feature came from the east and spun south, would the features modelled from the west spin more north? Is this Coriolis in action?

Cheers all.


Dickieboy - In the deep mid-Wiltshire 85m ASL

Formerly Guest (16) since 2004

Hippydave
02 January 2026 19:33:33
So far on the ens, GEFS are decent - London set is cold, milder peak as the LP rolls through around 9th Jan, then mostly chilly although quite a lot of mild scatter particularly from 14th Jan onwards where it looks like the mild camp has more members than the chilly camp. Scottish sets have better agreement for cold to be most likely option until 14th Jan too - snow rows for Inverness for example look healthy to that point. 

Worth mentioning there's very little sign of a dartboard LP in the ens, so the GFS op is a bit isolated around the 9th.

UserPostedImage

MOGREPs set suggests a greater chance of LPs being further north than has maybe been shown over the last few runs, with a peak in 850s to 2-3c around the 8th, a few dissenters keeping it cooler, before better agreement for chilly air from there but not universal agreement and some further milder peaks:-

UserPostedImage

Fairly finely balanced I'd have said but some sort of snow events as LPs move in seems likely, location TBC but as it stands could be anywhere from the South Coast to the Highlands!

Edit: ECM extended is interesting. It's not so much because it's wintry more that's it's generally chilly IMBY or cold/very cold for Scotland. Finishes with a blocking HP over Scandi with some deep cold air which is crawling towards the NE as LP over the UK slowly sinks south. (It won't look like that on tomorrow's run but it's a nice set of pixels and looks poised to get colder). 

The ECM ens are okay but more signs of LPs tracking far enough north in the longer term for 850s to warm down here, it's a generally cold set though for Scotland. T2M temps are generally a bit lower than the 850s might suggest down here.


Home: Tunbridge Wells

Work: Tonbridge

Rob K
02 January 2026 20:48:29
Massive scatter on the MOGREPS there, almost 20C spread
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

DEW
  • DEW
  • Advanced Member
02 January 2026 21:09:18
Yet another straw to clutch hold of

https://www.severe-weather.eu/global-weather/new-stratospheric-warming-january-2026-polar-vortex-disruption-cold-united-states-canada-europe-fa/ 


War is God's way of teaching Americans geography - Ambrose Bierce

Chichester 12m asl

Ally Pally Snowman
02 January 2026 22:09:13
Finally GFS 18z has got the correct outcome. ❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️

https://www.wetterzentrale.de/en/topkarten.php?map=20&model=gfs&var=25&run=18&time=105&lid=OP&h=0&mv=0&tr=3#mapref 


Bishop's Stortford 85m ASL.
Ally Pally Snowman
02 January 2026 22:11:17

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