The Weather Outlook

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Retron
10 November 2025 05:18:54
...and on the ECM medium term outlook, the blues have deepened for next week - a very rare sight!

https://charts.ecmwf.int/products/extended-anomaly-2t?base_time=202511090000&projection=opencharts_europe&valid_time=202511240000 

The early/mid December cooler spell continues to be shown too, albeit with bits of pink nibbling away at the white "near normal" over the UK.


Leysdown, north Kent
Tim A
10 November 2025 08:09:38
I am going to Northern Lapland on 28th November and those ECM charts show negative or neutral temperature anomalies the whole time, which is fantastic.  It has been a mild and slow start to the season there with weeks of 3-5c.  Dusting of snow there now and up to 35cm this week forecast.  So hopefully that is the cold and snow locked in , and enough of it to do the winter snow activities. 


Tim

NW Leeds

187m asl

 My PWS 

Ally Pally Snowman
10 November 2025 09:17:45
Most output has a short cold spell now then back to blowtorch.  The 9.9c CET November record very much in sight. 

Ecm ensembles would likely break the record.

https://www.wetterzentrale.de/en/show_diagrams.php?geoid=49069&model=ecm&var=2&run=0&lid=ENS&bw=1 


Bishop's Stortford 85m ASL.
Quantum
10 November 2025 11:02:47

Most output has a short cold spell now then back to blowtorch.  The 9.9c CET November record very much in sight. 

Ecm ensembles would likely break the record.

https://www.wetterzentrale.de/en/show_diagrams.php?geoid=49069&model=ecm&var=2&run=0&lid=ENS&bw=1 

Originally Posted by: Ally Pally Snowman 

I always say, beware the 'heatwave' in spring or Autumn because it usually heralds a arctic blast around the corner (or of course vice versa). A subtle difference in the positioning of the anticyclones could bring a blowtorch pattern; though its not the most likely outcome. Either way the prognosis for the next few weeks, and even heading towards December is excellent. Persistent mild conditions in the Canadian Atlantic will, if nothing else, stop sea ice growth there which will make it more likely the polar vortex takes up residence in Siberia rather than the usual Canadian Archipelago. That is obviously very good for those of us that like cold here.


25/26 (850hpa temp) 11 days snow/sleet falling

18/11 (-4) 19/11 (-6) 20/11 (-6) 01/01 (-7) 04/01 (-10) 10/01 (-7) 11/01 (-3) 30/01 (-1) 13/02 (-6) 15/02 (-4) 18/02 (-6)

24/25 10d

18/11 (-6) 19/11 (-6) 23/11 (-2) 22/12 (-5) 04/01 (-5) 05/01 (0)14/02 (0) 15/02 (0)12/03 (-6) 13/03 (-6)

23/24 8d

29/11 (-6) 30/11 (-6) 02/12 (-5) 03/12 (-5) 04/12 (-3) 16/01 (-3) 18/01 (-8)08/02 (-5)

22/23 7d

18/12 (-1)06/03 (-6) 08/03 (-8) 09/03 (-6) 10/03 (-8) 11/03 (-5) 14/03 (-6)

21/22 12d

Brian Gaze
10 November 2025 11:05:05
All looks a bit iffy to me. Are we just seeing the pattern across the North Atlantic transitioning to its winter default as seems to have been the case a number of times in recent autumns? On the other hand, will the "background signals" be conducive to maintaining more interesting synoptics for much of the winter?

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Brian Gaze

Berkhamsted

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

10 November 2025 12:57:32
Autumn/November snow usually means a mild winter
Berkshire
Ally Pally Snowman
10 November 2025 13:06:34

I always say, beware the 'heatwave' in spring or Autumn because it usually heralds a arctic blast around the corner (or of course vice versa). A subtle difference in the positioning of the anticyclones could bring a blowtorch pattern; though its not the most likely outcome. Either way the prognosis for the next few weeks, and even heading towards December is excellent. Persistent mild conditions in the Canadian Atlantic will, if nothing else, stop sea ice growth there which will make it more likely the polar vortex takes up residence in Siberia rather than the usual Canadian Archipelago. That is obviously very good for those of us that like cold here.

Originally Posted by: Quantum 

Definitely rate your opinion and knowledge Q, so hope you are correct. 


Bishop's Stortford 85m ASL.
tallyho_83
10 November 2025 13:49:43
Impressive snow spikes for Aviemore appearing now from this Thursday onwards looking at 06z GFS ENS:

https://www.wetterzentrale.de/en/ens_image.php?geoid=51090&var=203&run=6&date=2025-11-10&model=gfs&member=ENS&bw=1 


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

---------------------------------------

Sean Moon

Magical Moon

www.magical-moon.com

Brian Gaze
10 November 2025 13:52:31
Not much showing up away from high ground in the north and the Welsh mountains perhaps. 

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Brian Gaze

Berkhamsted

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Chunky Pea
10 November 2025 14:59:34

Autumn/November snow usually means a mild winter

Originally Posted by: The Dub Version 

There is lore around here that frosts in October are a signal of a mild winter. We haven't had any frosts at all this autumn so far! I do think there might be something in the idea that stormy and wet Novembers (which this November isn't) can indicate a colder and snowier December. 


Patrick,

East Galway, Ireland.

DEW
  • DEW
  • Advanced Member
10 November 2025 15:04:48
"If ice in November will bear a duck / there'll be nothing thereafter but slush and muck".

These days we get the slush and muck anyway


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

Chichester 12m asl

Ally Pally Snowman
10 November 2025 16:39:48
Brian Gaze
10 November 2025 16:52:26

Fairly widespread snow on the GFS 12z. 

https://www.wetterzentrale.de/en/topkarten.php?map=20&model=gfs&var=25&run=12&time=234&lid=OP&h=0&mv=0&tr=6#mapref 

Originally Posted by: Ally Pally Snowman 

Looks like even more widespread 12 hours earlier.

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Brian Gaze

Berkhamsted

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warrenb
10 November 2025 16:55:48
Yes a very chilly 12z GFS
nsrobins
10 November 2025 17:00:56
A nationwide cool to cold spell starting this weekend looking increasingly likely. Realistically snow will be at a premium but a few ‘proper’ overnight frosts will be a literal breath of fresh air compared to the muck we’ve endured in recent winters (and it’s not even winter yet). 
Neil

Fareham, Hampshire 28m ASL (near estuary)

Stormchaser, Member TORRO

Quantum
10 November 2025 17:05:55
Also keep in mind even before the 'modern climate' kicked in snow to lower levels outside N Scotland is still unusual in early November. Even 2010, an exceptional cold spell had the snow arrive in the last week of November, the 10 days really does make a difference statistically at this time of year with the average climatological temperature dropping faster now than almost at any other time of year. 

To put it another way, its the best start to extended winter we've had in a long time.


25/26 (850hpa temp) 11 days snow/sleet falling

18/11 (-4) 19/11 (-6) 20/11 (-6) 01/01 (-7) 04/01 (-10) 10/01 (-7) 11/01 (-3) 30/01 (-1) 13/02 (-6) 15/02 (-4) 18/02 (-6)

24/25 10d

18/11 (-6) 19/11 (-6) 23/11 (-2) 22/12 (-5) 04/01 (-5) 05/01 (0)14/02 (0) 15/02 (0)12/03 (-6) 13/03 (-6)

23/24 8d

29/11 (-6) 30/11 (-6) 02/12 (-5) 03/12 (-5) 04/12 (-3) 16/01 (-3) 18/01 (-8)08/02 (-5)

22/23 7d

18/12 (-1)06/03 (-6) 08/03 (-8) 09/03 (-6) 10/03 (-8) 11/03 (-5) 14/03 (-6)

21/22 12d

Brian Gaze
10 November 2025 18:05:16

Also keep in mind even before the 'modern climate' kicked in snow to lower levels outside N Scotland is still unusual in early November. Even 2010, an exceptional cold spell had the snow arrive in the last week of November, the 10 days really does make a difference statistically at this time of year with the average climatological temperature dropping faster now than almost at any other time of year. 

To put it another way, its the best start to extended winter we've had in a long time.

Originally Posted by: Quantum 

The last three Novembers with snow cover here in Berkhamsted were:

21st November 2015

29th November 2021

20th November 2024

There may also have been a few instances of snow falling but not settling.


Brian Gaze

Berkhamsted

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Brian Gaze
10 November 2025 18:09:15
GEM snow depth charts are available on TWO for the first time this winter. (I'll thin the grid out a tad to make them more readable)

Select UK - Snow Depth on the GEM viewer:

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

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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

Brian Gaze
10 November 2025 18:17:01
Verification stats from the physics based models are interesting at the moment. ECMWF leads as usual, with the UK Met Global and GEM slugging it out for second place. GFS is in fourth place.

https://www.emc.ncep.noaa.gov/users/verification/global/gfs/prod/atmos/headline/images/evs.global_det.acc.hgt_p500.last31days.timeseries_valid00z_f120.g004_nhem.png 


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

Retron
10 November 2025 18:24:51

The last three Novembers with snow cover here in Berkhamsted were:

21st November 2015

29th November 2021

20th November 2024

There may also have been a few instances of snow falling but not settling.

Originally Posted by: Brian Gaze 

You really do have a different climate there! The last time there was snow on the ground in November here was on the 30th November 2010, when there was 6cm of level snow. And before that... you'd have to go all the way back to late November 1993, when we had a proper easterly blast and a good 6 inches of snow.

Though some of the modelling toys with snow in the mid term I'm not going to get even remotely excited. It is, however, encouraging to see such a quick response to zonal winds falling away, and I hope that for once the way we've seen weather patterns repeat again and again over the past few years works to our [cold weather fans] advantage - the same synoptics just a couple of weeks later would be much colder. 


Leysdown, north Kent
tallyho_83
10 November 2025 18:49:45
What is notable about this autumn is how wet it has been in comparison to previous autumns. Most autumns in the past have been dry and warm. Also we have not had one frost at all.
Home Location - Vixen Tor Close, Okehampton, Devon (221m ASL)

---------------------------------------

Sean Moon

Magical Moon

www.magical-moon.com

Tim A
10 November 2025 20:33:40
In 2016 we had a pretty impressive snowfall on 9th November, there was a few inches and the trees were laden with it still late morning . Have some lovely photos .  It was the earliest time I remember seeing such a good snowfall. 1996 or 1997?  has two occasions in a few days but after mid Month and 2010 was towards the end of the month. 
Tim

NW Leeds

187m asl

 My PWS 

Gandalf The White
10 November 2025 22:22:47

What is notable about this autumn is how wet it has been in comparison to previous autumns. Most autumns in the past have been dry and warm. Also we have not had one frost at all.

Originally Posted by: tallyho_83 

It’s really not been wet this side of the country.  Here the local ponds are still almost as low as they were in the recent hot dry summers.


Location: South Cambridgeshire

130 metres ASL

52.0N 0.1E



johncs2016
11 November 2025 00:18:56

It’s really not been wet this side of the country.  Here the local ponds are still almost as low as they were in the recent hot dry summers.

Originally Posted by: Gandalf The White 

It's the same here in Edinburgh as well.

A lot of what I could possibly add to that is more of a subject for the drought thread rather than here, and I don't want to go off-topic here if I can possibly help it (we all know after all, that Brian is never all that chuffed when too many people go off-topic on these threads).

Since this is the MO thread though, I will point to the fact that after an upcoming colder spell by the weekend, there is some model output which is going for a rebuild of high pressure which would bring yet more drier weather. That is something which we've been seeing far too much of this year and that is why in many areas, there has been such a massive issue regarding water scarcity although I do also recognise that this hasn't been such an issue in other areas such as the west of Scotland and where Sean (Tallyho-83) is located down in SW England.

In the NE of Scotland in particular, some areas have only just started to recover from that water scarcity situation but even here in Edinburgh, a very large rainfall deficit continues to remain in place which will only continue to grow even larger as each month keeps on being drier than average. So far this year, we have had such a long run of consecutive drier than average months in a row, that I've actually forgotten the last time that we actually had a wetter than average month.

Even during this month so far, the rainfall total at Edinburgh Gogarbank is only very slightly above the average for this stage of this particular month which means that if we do end up seeing that rebuild of high pressure from the north which some of the model output is pointing to, this month will only end up being drier than average yet again and I am now absolutely sick and tired of recording drier than average months in my area in every single month.

In order for the deficit to be reduced and for further recovery from the overall water scarcity situation to take place, it is therefore more rain which is need here, and not less rain which will only make those matters worse once again.


The north of Edinburgh, usually always missing out on snow events which occur not just within the rest of Scotland or the UK, but also within the rest of Edinburgh.

BJBlake
11 November 2025 00:34:41

What is notable about this autumn is how wet it has been in comparison to previous autumns. Most autumns in the past have been dry and warm. Also we have not had one frost at all.

Originally Posted by: tallyho_83 

Except over here in the East! We still need a deluge to refill the aquifers. My local do walking venue still has a a dry lake and chal streams with just leaves and weeds - but not a drop of water in them.  I was hoping for a wet Autumn - but still waiting. We have had a few showers, a bit of drizzle - but not enough deluges to do more than settle the summer dust and perk up the herbs.


Brecklands, South Norfolk 28m ASL

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