Remove ads from site

Whiteout
09 January 2024 16:33:22
That is what you want to see, stunning from 144 Met:

https://www.meteociel.fr/ukmo/runs/2024010912/UW144-7.GIF?09-17 
Home/Work - Dartmoor
240m/785 ft asl
Russwirral
09 January 2024 16:34:43
i suspect GFS will have a few more goes at a mild win out, before the fight back begins... with a battlefield winning out  somewhere over Northumblerland, then Leeds, then Brum, then Bournemouth.....then at the 11th hour is shunted into France where the battlefield really takes place. 😂

 
Joe Bloggs
09 January 2024 16:36:38

Super ICON and UKMO, GFS clearly struggling and great to see by the Met updates they are discounting it. Would be nice to see ECM follow UKMO though 🙂

Originally Posted by: Whiteout 



Always good to see MetO on board - however we need to see cross-model agreement. If GFS is throwing a wobbler we do need to take it seriously. 

Manchester City Centre, 31m ASL

Ally Pally Snowman
09 January 2024 16:37:11
Gem 12z is my run of the day significant snow for most and the cold is back at the end.

https://www.wetterzentrale.de/en/topkarten.php?map=1&model=gem&var=1&run=12&time=234&lid=OP&h=0&mv=0&tr=3#mapref 
Bishop's Stortford 85m ASL.
Retron
09 January 2024 16:37:27

Lovely snowy GEM . With legs as well.
 

Originally Posted by: Ally Pally Snowman 


Hmm - there's one snow event for areas south of say Liverpool, and that gradually melts. After that the action is further north - at least out to 210.

MC provides charts for France, but you get to see a good chunk of the UK too!

https://www.meteociel.fr/modeles/geme_cartes.php?ech=6&mode=16&carte=3 

That said, GEM, as with the 0z run, effectively extends the Eurasian lobe of the polar vortex over the UK. That's one of the memorable things about the Dec 2010 spell, as that saw a lot of deep purple over the UK on the MC charts... a "hush" due to snowfall would be quite nice!
Leysdown, north Kent
Retron
09 January 2024 16:42:42

That is what you want to see, stunning from 144 Met:

https://www.meteociel.fr/ukmo/runs/2024010912/UW144-7.GIF?09-17 

Originally Posted by: Whiteout 


Slightly less stunning from the 168, as the initial cold plunge gets shunted east. Still, I'd take it any day over the GFS dross!

It also looks like the cold would start moving southwards again afterwards...

https://images.meteociel.fr/im/83/10425/ukmo_0_168nes3.png
UserPostedImage 

 
Leysdown, north Kent
Saint Snow
09 January 2024 16:45:18

That is what you want to see, stunning from 144 Met:

https://www.meteociel.fr/ukmo/runs/2024010912/UW144-7.GIF?09-17 

Originally Posted by: Whiteout 




24 hours later it gets even better as, like Icon, it inches the Scandi Low westwards to turn the flow from a straight northerly to a very cold NW'ly

 

Martin
Home: St Helens (26m asl) Work: Manchester (75m asl)
A TWO addict since 14/12/01
"How can wealth persuade poverty to use its political freedom to keep wealth in power? Here lies the whole art of Conservative politics."
Aneurin Bevan
some faraway beach
09 January 2024 16:46:22

Always good to see MetO on board - however we need to see cross-model agreement. If GFS is throwing a wobbler we do need to take it seriously. 

Originally Posted by: Joe Bloggs 


Every aborted cold spell in the model world seems to have featured the UKMO model never quite being on board. I don't know what it is about that particular model, but when it's hesitant you know in your water that the cold spell is not going to materialize the way the other model output is suggesting.

Yet this time the UKMO operational run has been the one consistently offering us dreamland.
2 miles west of Taunton, 32 m asl, where "milder air moving in from the west" becomes SNOWMAGEDDON.
Well, two or three times a decade it does, anyway.
Ally Pally Snowman
09 January 2024 16:50:06

Hmm - there's one snow event for areas south of say Liverpool, and that gradually melts. After that the action is further north - at least out to 210.

MC provides charts for France, but you get to see a good chunk of the UK too!

https://www.meteociel.fr/modeles/geme_cartes.php?ech=6&mode=16&carte=3 

That said, GEM, as with the 0z run, effectively extends the Eurasian lobe of the polar vortex over the UK. That's one of the memorable things about the Dec 2010 spell, as that saw a lot of deep purple over the UK on the MC charts... a "hush" due to snowfall would be quite nice!

Originally Posted by: Retron 



Wetterzentrale has snow charts for GEM. Looks fairly decent even at day 10.

https://www.wetterzentrale.de/en/topkarten.php?map=20&model=gem&var=25&run=12&time=240&lid=OP&h=0&mv=0&tr=12#mapref 

 
Bishop's Stortford 85m ASL.
Joe Bloggs
09 January 2024 17:08:46

24 hours later it gets even better as, like Icon, it inches the Scandi Low westwards to turn the flow from a straight northerly to a very cold NW'ly

 

Originally Posted by: Saint Snow 



I concur! 😉 

Edit - just checked the chart. Yes it’s a NW’ly but looks like a mild sector. Icon much colder. 

Manchester City Centre, 31m ASL

Tom Oxon
09 January 2024 17:12:44
All eyes on the ECM op to hold its ground, which I think it will. I'm never on board unless the ECM is on board.
S Warwickshire countryside, c.375ft asl.
Hippydave
09 January 2024 17:16:00
UKMO is a bit questionable in the end IMO - the LP in the southern Atlantic can't get through France due to the collapsing lobe of HP, so you've got mild air pulled up from the south riding up the HP lobe hitting colder air which would presumably kick off LP development and likely lead to milder air being pulled over a chunk of the UK unless we get lucky and the HP slinking into France runs through quickly or if a renewed cold push has enough grunt in it.

I think the  00z MOGREPS had a dip circa 15th as cold air dug in and then a rise after, maybe reflecting that kind of setup. The 6z set have less of a rise so maybe suggesting any mild push is largely blocked off by renewed cold air moving south? I guess wait and see what the 12z set shows. 

Whatever way you look at it it's a lot better than the GFS though!

GEM is 'messy' which might be good for some, although down here it looks transient at best. It's good to see it's does go cold again in the end though, rather than following GFS with a raging atlantic and long fetch south westerlies.

Edit: have had another look at UKMO run and can't make my mind up if it's decent or potentially iffy (cold though). That LP may just stall and a further cold push occur and little mild air makes it. Or it might spin up etc. 


 
Home: Tunbridge Wells
Work: Tonbridge
squish
09 January 2024 17:17:34
JMA… tick ✔️ (up to +132)
D.E.W on Dartmoor. 300m asl
CField
09 January 2024 17:20:51
12z run from ECM one of the biggest of the winter so far
Favourite snowstorm
Famous channel low
Dec 31st 1978
Hastings East Sussex
Foot of level snow severe drifting
Next day max temp -4 degrees Celsius
Joe Bloggs
09 January 2024 17:27:55
“Massive ECM coming up”.

🤣🤣🤣

Massive, until all the models change again tomorrow, for good or worse. 

Manchester City Centre, 31m ASL

Zubzero
09 January 2024 17:42:48

“Massive ECM coming up”.

🤣🤣🤣

Massive, until all the models change again tomorrow, for good or worse. 

Originally Posted by: Joe Bloggs 



Or AI takes over and the models learn to control the weather 🙃 
ballamar
09 January 2024 17:45:01

“Massive ECM coming up”.

🤣🤣🤣

Massive, until all the models change again tomorrow, for good or worse. 

Originally Posted by: Joe Bloggs 



some will say most important run of winter 😂

I reckon ECM will be cold tonight but M4 keeps repeating 
squish
09 January 2024 17:49:48
At first glance there are many exciting GEFS runs 
D.E.W on Dartmoor. 300m asl
Joe Bloggs
09 January 2024 17:49:52
12z GEFS are actually quite good with plenty of cold solutions. 

Manchester City Centre, 31m ASL

Joe Bloggs
09 January 2024 17:50:52

At first glance there are many exciting GEFS runs 

Originally Posted by: squish 



Two great minds 🤣

Manchester City Centre, 31m ASL

Ally Pally Snowman
09 January 2024 18:22:36
Ecm at 120 looks pretty good. But predicting where it goes from here is basically impossible. 
 
Bishop's Stortford 85m ASL.
Chunky Pea
09 January 2024 18:25:06

some will say most important run of winter 😂

 

Originally Posted by: ballamar 


Wait till you see tomorrow's GFS 18z run!
Current Conditions
https://t.ly/MEYqg 


"You don't have to know anything to have an opinion"
--Roger P, 12/Oct/2022
Gandalf The White
09 January 2024 18:31:14

Ecm at 120 looks pretty good. But predicting where it goes from here is basically impossible. 
 

Originally Posted by: Ally Pally Snowman 



Energy driving the Arctic air mass south steadily.  Looks fine at T+144: -6c 850s reach London, -11 for northern Scotland.
Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


Hippydave
09 January 2024 18:42:03
Looks ok at T168, just a case of how that LP behaves in conjunction to the lobe of HP over France that 'fell off' the main HP. 
Home: Tunbridge Wells
Work: Tonbridge
Ally Pally Snowman
09 January 2024 18:42:16
Ecm looks nice and snowy by 192h. Very good
Bishop's Stortford 85m ASL.

Remove ads from site

Ads