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ballamar
20 November 2024 20:45:00
Quite like the ECM - temps will begin to drop under the HP and a hint of retrogression towards the end of extended run. Not the worst start to the colder season!
johncs2016
20 November 2024 20:51:26

Quite like the ECM - temps will begin to drop under the HP and a hint of retrogression towards the end of extended run. Not the worst start to the colder season!

Originally Posted by: ballamar 


If that results in the UK getting some more snow at the end of all of that, could we please have some of that here where I am?

Perhaps if we had got that on this occasion instead of missing out, I would probably not have been so unhappy with the current weather pattern even if didn't rain here.
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.
Rob K
20 November 2024 22:52:06
18Z GFS not serving up much cheer. Tomorrow’s low heads further south and then we end up with the oh so familiar ruler straight isobars stretching from the Azores to Tromso, with low pressure over Greece. 
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
Matty H
20 November 2024 23:54:37

Me too tbh, but I'd rather keep the dream alive.

Originally Posted by: Quantum 


Much as I despise cold and winter, I get that and respect it. Long way to go until spring 
DEW
  • DEW
  • Advanced Member
21 November 2024 08:20:51
WX temps with something of a shift this morning. From week 1 with a fairly cold NW Europe (being threatened yesterday with a further expansion of cold air for Russia) milder air floods in from the SW all the way up to the Baltic in week 2. The cold air escapes to the SE, to the Balkans and especially Turkey. Rain/snow fairly general across Europe in week 1 but notably heavy for Britain; in week 2 this retreats NW-wards leaving C Europe dry but Britain still wet.

GFS Op 0z - the cold LP over Scandinavia and its associated runner over France all collecting up and moving off NE-wards while a new and very deep LP moves in for the weekend with SW-ly gales (950mb Rockall Sat 23rd, drifting NE to the Hebrides Mon 25th 960mb). By Fri 29th, having delivered a shot of mild air to NW Europe, this system declines and HP develops over Germany 1030mb Sat 30th with very mild S-lies for Britain. LPs from the Atlantic then begin to run E-wards close to N Scotland and by Sat 7th there are full-on zonal W--lies sandwiched between 980mb cool and unsettled in Shetland and 1020mb fine and mild along the S coast.

JET stream - a strong streak from the NW driving this weekend's LP but then fragmentary until Thu 5th when strong W-ly and directed at Scotland.

ECM - similar to GFS though the HP towards the end of the run Sun 1st is further north, over Scandinavia with a ridge to Britain hence calmer and more settled.

GEM - Not much sign of HP later on, with a series of shallow LPs moving towards Britain from the SW from Sat 28th onwards

GEFS - briefly very mild over the weekend, dropping back to norm by Wed 27th and  very wet esp in S until then with good ens agreement. After that a long generally rather  mild period in most runs but with a number of cold outputs differing to keep the mean near norm. Rain continuing on and off in many runs at most times, heaviest in SW. 
War does not determine who is right, only who is left - Bertrand Russell

Chichester 12m asl
UncleAlbert
21 November 2024 09:05:03
A small cluster of lower 850s appearing.  This appears to be associated with the possibility of the ridge that forms around the middle of next week developing into a higher block to the east of the UK.  Just a hint on the GFS ens but ECM more bullish?
Rob K
21 November 2024 10:49:34
Yes the trend this morning seems to be for HP to develop a bit further north than the usual Euroslug which could keep things on the cooler side or even introduce a bit of easterly influence.
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
Taylor1740
21 November 2024 11:20:42

Yes the trend this morning seems to be for HP to develop a bit further north than the usual Euroslug which could keep things on the cooler side or even introduce a bit of easterly influence.

Originally Posted by: Rob K 


Not so on the GFS 6z, pressure much too high to the south and allows some extremely mild weather to develop.
NW Leeds - 150m amsl
warrenb
21 November 2024 11:38:04

Not so on the GFS 6z, pressure much too high to the south and allows some extremely mild weather to develop.

Originally Posted by: Taylor1740 


Which you would not be surprised to learn is a mild outlier toward the end of the run.
nsrobins
21 November 2024 11:43:40

Which you would not be surprised to learn is a mild outlier toward the end of the run.

Originally Posted by: warrenb 


Although I’d need GFS to get on board with the idea of a higher latitude block as per ECM to be invested in the possibility of colder than average after the Bert show.
Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
warrenb
21 November 2024 11:45:45

Although I’d need GFS to get on board with the idea of a higher latitude block as per ECM to be invested in the possibility of colder than average after the Bert show.

Originally Posted by: nsrobins 


I agree, just pointing out that looking at just the operational is not a good idea.
Saint Snow
21 November 2024 11:54:08

Not so on the GFS 6z, pressure much too high to the south and allows some extremely mild weather to develop.

Originally Posted by: Taylor1740 




ECM has a gap between Bert and the next Atlantic low. This allows the HP 'wedge' in the northern Atlantic to survive, which then moves eastwards to centre over southern Scandinavia then Germany (it does look like it's going to sink further SE, too)

GFS spins a shortwave from the following low, which gets caught in the tailwind of Bert and squeezes out any room for that HP 'wedge' to form in the northern Atlantic, and it then sits over the Med, covering much of continental Europe

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
21 November 2024 14:36:17
Amazing how quickly cold is swept away in last 10 to 15 years.

Berkshire
warrenb
21 November 2024 15:25:26

Amazing how quickly cold is swept away in last 10 to 15 years.

Originally Posted by: The Dub Version 


Not really seeing as we live on the Atlantic's doorstep. Remember many a night going to bed with Snow coming down to wake up to a slushy mess and it pouring down with rain. And that was the 80's
Saint Snow
21 November 2024 15:26:17
The Greenland High has been pretty resolute - and even GFS shows it extending far beyond.

But GFS models heights to our south to be just too strong and extensive. The UK, of course, is left between the two, slap bang in 'low pressure alley'

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
Zubzero
21 November 2024 15:53:15
Still a big scatter in ground temperature after storm Bert clears. 
https://www.meteociel.fr/cartes_obs/gens_display.php?x=303&y=104&run=6&runpara=0&type=3&ext=1  
nsrobins
21 November 2024 16:10:24
My brief input to MO discussion is at each iteration GFS puts a little more on the high behind the weekends low (called Bert for some reason). A cold week next week is not out of the question yet.
Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
The Beast from the East
21 November 2024 16:15:01

My brief input to MO discussion is at each iteration GFS puts a little more on the high behind the weekends low (called Bert for some reason). A cold week next week is not out of the question yet.

Originally Posted by: nsrobins 


UKMO will please the coldies
https://www.meteociel.fr/ukmo/runs/2024112112/UW144-21.GIF 
Purley, Surrey, 70m ASL

"We have some alternative facts for you"

Kelly-Ann Conway - former special adviser to the President
Hippydave
21 November 2024 16:16:28

My brief input to MO discussion is at each iteration GFS puts a little more on the high behind the weekends low (called Bert for some reason). A cold week next week is not out of the question yet.

Originally Posted by: nsrobins 


I took the T168 point to have a look this morning and GFS was noticeably out of step with ECM, GEM and UKM, all of which (ops) had a more defined HP area and less oomph from the Atlantic. Seemed more likely GFS would move more towards that solution than keep with it's LP dominated theme but not entirely impossible. 

Will have to see where the rest of the run goes, usually I guess and find I get it hopelessly wrong.....
Home: Tunbridge Wells
Work: Tonbridge
Russwirral
21 November 2024 16:48:13
Atlantic seems to be fighting against a growing GH towards the end of this run, cant say the signs havent been there on previous runs, they just seem a bit more amplified on this current run
Heavy Weather 2013
21 November 2024 16:59:57
Gosh, I like the 12z GFS. Greenland high looks a lot more resolute and towards end develops an easterly. 
Hopefully this is the start of the next chase. 
Mark
Beckton, E London
Less than 500m from the end of London City Airport runway.
Heavy Weather 2013
21 November 2024 17:03:04
ne for Darren as I know he likes this sort of stuff but it appears Netweather now has MOGREPS.
https://x.com/met4castuk/status/1859642347409244273?s=46&t=0CzXil3QOYbo8W1abHQyVQ 

Mark
Beckton, E London
Less than 500m from the end of London City Airport runway.
Retron
21 November 2024 17:10:08

ne for Darren as I know he likes this sort of stuff but it appears Netweather now has MOGREPS.
https://x.com/met4castuk/status/1859642347409244273?s=46&t=0CzXil3QOYbo8W1abHQyVQ 

Originally Posted by: Heavy Weather 2013 


Interesting - Brian's had MOGREPS-G on this site for a while, but I don't think MOGREPS-UK has been available before...

Mind you, I'm too stingy to pay for it (I do pay for NW's radar, but that's all over there) so I won't be seeing it. I didn't think I'd ever say it, but I think there's enough free data out there nowadays to not make it worth paying for just one model!
Leysdown, north Kent
Saint Snow
21 November 2024 17:42:26

Gosh, I like the 12z GFS. Greenland high looks a lot more resolute and towards end develops an easterly. 
Hopefully this is the start of the next chase. 

Originally Posted by: Heavy Weather 2013 



Well it's a step in the right direction, but by the end it's spun a vigorous low out of Newfoundland that inches eastwards and is in the process of toppling the high.

Long way off, mind

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
Brian Gaze
21 November 2024 18:19:48

Interesting - Brian's had MOGREPS-G on this site for a while, but I don't think MOGREPS-UK has been available before...

Mind you, I'm too stingy to pay for it (I do pay for NW's radar, but that's all over there) so I won't be seeing it. I didn't think I'd ever say it, but I think there's enough free data out there nowadays to not make it worth paying for just one model!

Originally Posted by: Retron 



MOGREPS-UK is available but at the moment I'm not sure if it's worth the cost.

MOGREPS-G link on TWO is:

https://www.theweatheroutlook.com/twodata/mogreps.aspx 
Brian Gaze
Berkhamsted
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"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan

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