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[Misc] The Award-winning official "More Snow Tomorrow?" Thread [2024-25 Season]



Papa Lazarou

Living in a De Zerbi wonderland
Jul 7, 2003
19,358
Worthing
The general trend on terms of the surface temperatures is slightly down for the period 20th onwards, but there is still a decent spread. We now have a few 30%+ snow rows as well.

Ensemble Copy.png
 






Uncle Spielberg

Well-known member
Jul 6, 2003
43,093
Lancing
It looks like a non event winter again. Trends just do not support any severe or even cold weather and we are half way through winter already without a single cold day. Europe is very mild and has been all winter. This cold weather event just keep getting put back and back. Forecasts showing 7C plus for the next 2 weeks.

Worhing temperatures are below after a mild November. December day max average 10.30 c, night min average 4.04 c - 7.16 c mean, average is 5.5 c. January as of yesterday day max average 7.29 c, night min average 2.0 c - 4.645 mean, average 4.5 c, Decemner 7 nights got to 0 c min or below, January got to 0 c min or below as of yesterday
 


Giraffe

VERY part time moderator
Helpful Moderator
NSC Patron
Aug 8, 2005
27,221
It looks like a non event winter again. Trends just do not support any severe or even cold weather and we are half way through winter already without a single cold day. Europe is very mild and has been all winter. This cold weather event just keep getting put back and back. Forecasts showing 7C plus for the next 2 weeks.

Worhing temperatures are below after a mild November. December day max average 10.30 c, night min average 4.04 c - 7.16 c mean, average is 5.5 c. January as of yesterday day max average 7.29 c, night min average 2.0 c - 4.645 mean, average 4.5 c, Decemner 7 nights got to 0 c min or below, January got to 0 c min or below as of yesterday

Hooray, Uncle has spoken - I'll get the sled out and dust it down.
 


chucky1973

New member
Nov 3, 2010
8,829
Crawley
The general trend on terms of the surface temperatures is slightly down for the period 20th onwards, but there is still a decent spread. We now have a few 30%+ snow rows as well.

View attachment 103623

I'm following you and other chaps on twitter that all follow the weather and inparticular the winter weather. They all now seem to suggest a decent cold spell from the 20th with some decent chances of sustained snow. You thinking along the same lines?
 




Papa Lazarou

Living in a De Zerbi wonderland
Jul 7, 2003
19,358
Worthing
I'm following you and other chaps on twitter that all follow the weather and inparticular the winter weather. They all now seem to suggest a decent cold spell from the 20th with some decent chances of sustained snow. You thinking along the same lines?

It's looking promising, but the scatter on the ensemble still includes more moderate outcomes. The most recent GFS (other models are available) gives an Op run which never drops the surface temp below 5C during that period (thick black line below). And remember the Op run is theoretically the most accurate run, as it runs at the highest resolution. So, THAT might be the 'real' outcome. The alternative view is that the Parallel Run (which is the future Op run, being tested with some 'enhancements') is vety cold, so even the 2 high res runs are way apart in terms of surface temps.

The red line (average) is lowering with each run, and the very mild runs we saw yesterday have gone (10C +) but there's still time for it to go wrong.

It's also worth noting that there's not a huge amount of precipitation showing.... but let's get the cold in place first.

latest ens.png
 


Kalimantan Gull

Well-known member
Aug 13, 2003
13,438
Central Borneo / the Lizard
It looks like a non event winter again. Trends just do not support any severe or even cold weather and we are half way through winter already without a single cold day. Europe is very mild and has been all winter. This cold weather event just keep getting put back and back. Forecasts showing 7C plus for the next 2 weeks.

Worhing temperatures are below after a mild November. December day max average 10.30 c, night min average 4.04 c - 7.16 c mean, average is 5.5 c. January as of yesterday day max average 7.29 c, night min average 2.0 c - 4.645 mean, average 4.5 c, Decemner 7 nights got to 0 c min or below, January got to 0 c min or below as of yesterday

:bowdown:

Rare snowfall blankets Athens as temperatures across Greece hit record lows

Heavy snow prompts state of emergency in Germany
 






Drpepper

Active member
Nov 23, 2011
404
Sussex
It looks like a non event winter again. Trends just do not support any severe or even cold weather and we are half way through winter already without a single cold day. Europe is very mild and has been all winter. This cold weather event just keep getting put back and back. Forecasts showing 7C plus for the next 2 weeks.

Worhing temperatures are below after a mild November. December day max average 10.30 c, night min average 4.04 c - 7.16 c mean, average is 5.5 c. January as of yesterday day max average 7.29 c, night min average 2.0 c - 4.645 mean, average 4.5 c, Decemner 7 nights got to 0 c min or below, January got to 0 c min or below as of yesterday

Some of our harshest winters have been end of jan/feb. Very rarely do we get freezing weather before or just after Christmas so plenty of time yet if you are wanting cold weather. Although if the rest of winter is like today i would much prefer that, nice and sunny crisp day.
 


Papa Lazarou

Living in a De Zerbi wonderland
Jul 7, 2003
19,358
Worthing
Some of our harshest winters have been end of jan/feb. Very rarely do we get freezing weather before or just after Christmas so plenty of time yet if you are wanting cold weather. Although if the rest of winter is like today i would much prefer that, nice and sunny crisp day.

I'd much rather have it in Jan than Feb, at least right down here.
 


Weststander

Well-known member
Aug 25, 2011
69,271
Withdean area
Some of our harshest winters have been end of jan/feb. Very rarely do we get freezing weather before or just after Christmas so plenty of time yet if you are wanting cold weather. Although if the rest of winter is like today i would much prefer that, nice and sunny crisp day.

The metoffice’s mean daily stats have always shown the coldest dates are towards the end of January. The all important surrounding sea temperature continues to cool for a month or more after 21st Dec.
 
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Audax

Boing boing boing...
Aug 3, 2015
3,263
Uckfield
Looks like there's signs of significant shifts towards cold to start appearing in the modelling soon. Bit of chatter on Twitter amongst respected experts that some issues that were blocking downwelling of the SSW effects are clearing and that should result in a pattern change that's likely to increase the odds of UK going colder. Eventually. Late Jan, and then possibly cold side of average for rest of the winter after that.
 


Uncle Spielberg

Well-known member
Jul 6, 2003
43,093
Lancing
Yes they have had a lot of snow in hilly areas of central europe this week but we don't live there do we ? It is all rather boring really. Not mild as such, 7 c day , 2 c night but nothing on the horizon to suggest there is any likelihood of cold or snowy weather. A non event of a winter
 


Papa Lazarou

Living in a De Zerbi wonderland
Jul 7, 2003
19,358
Worthing
Looks like there's signs of significant shifts towards cold to start appearing in the modelling soon. Bit of chatter on Twitter amongst respected experts that some issues that were blocking downwelling of the SSW effects are clearing and that should result in a pattern change that's likely to increase the odds of UK going colder. Eventually. Late Jan, and then possibly cold side of average for rest of the winter after that.

Yes they have had a lot of snow in hilly areas of central europe this week but we don't live there do we ? It is all rather boring really. Not mild as such, 7 c day , 2 c night but nothing on the horizon to suggest there is any likelihood of cold or snowy weather. A non event of a winter

It is looking more hopeful, but don't get too excited just yet, as there is a signal for possible cold Northerly or even North Westerly winds with milder incursions at times in a cyclonic flow. This will be good for Northern Britain but more marginal down here.

The upside is marginal can give MASSIVE snowfalls, if your on the right side of the divide.
 






Uncle Spielberg

Well-known member
Jul 6, 2003
43,093
Lancing
The BBC trashed any idea of cold from the sudden warming event, yesterday. They said it has been a non event. The one in lat feb this year here was a big fuss over nothing as well. Most of Sussex had 1 inch of now
 


Uncle Spielberg

Well-known member
Jul 6, 2003
43,093
Lancing
Metcheck 2 c above average
 


Uncle Spielberg

Well-known member
Jul 6, 2003
43,093
Lancing
Never mind snow. When does Spring start and I don't mean the poxy equinox either :lolol:

It started in December after autumn, we have 3 seasons now
 




Papa Lazarou

Living in a De Zerbi wonderland
Jul 7, 2003
19,358
Worthing
The latest GFS ensemble doesn't help a great deal, other than slightly increasing the snow%. (circled in red), but the uncertainty is still there, as shown by the spread in the possible surface temps.

IMG_20190110_121822.jpg

Some runs give temps close to zero, whereas many other outcomes are possible.

More runs needed.
 




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