Zubzero
White Meadows
26 January 2021 19:34:43

Some cheeky surprises possible at short notice after this weekend, by the look of things.
Roll on Feb... this month has been drab down south.

White Meadows
26 January 2021 19:38:27
The first SSW showing its impact on output accuracy earlier this month:
https://www.emc.ncep.noaa.gov/gmb/STATS/html/new_acz6.html 

Another warming under way after tomorrow...
Maybe this time we hit the jackpot.
JRobinson
26 January 2021 19:40:03

I’ve never seen the Control and Op match each other so closely for virtually the whole of the run in terms of 850s.


Hopefully they are setting the trend and the rest of the members will follow suit.


GEFS 12z

JRobinson
26 January 2021 19:41:26

Originally Posted by: White Meadows 

The first SSW showing its impact on output accuracy earlier this month:
https://www.emc.ncep.noaa.gov/gmb/STATS/html/new_acz6.html

Another warming under way after tomorrow...
Maybe this time we hit the jackpot.


GEM performing better than GFS and its parallel I see.


And UKMO matching it over that range

Ally Pally Snowman
26 January 2021 19:41:46

Originally Posted by: JRobinson 


I’ve never seen the Control and Op match each other so closely for virtually the whole of the run in terms of 850s.


Hopefully they are setting the trend and the rest of the members will follow suit.


GEFS 12z



That is remarkable especially when they both go so cold.


 


Bishop's Stortford 85m ASL.
JRobinson
26 January 2021 19:46:54

Originally Posted by: Ally Pally Snowman 


 


That is remarkable especially when they both go so cold.


 



Indeed. I haven’t had chance to check wether they match each other or not synoptically.


that will have to wait until I’ve eaten dinner 🍲 

The Beast from the East
26 January 2021 19:49:20

GEM has been holding the torch for this from the start. Lets all pray it has nailed this. ECM has been all over the place!


 


"We have some alternative facts for you"
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doctormog
26 January 2021 19:50:56
On the subject of ensemble data, the 12z GFS suite is the first in quite a few runs to have 20 members dipping to or below -10°C (t850hPa) here for some time.
DPower
26 January 2021 21:26:59

Another cracking run the 12z gfs although I think it can/will do better. Plenty of eye candy to enjoy in future runs I'm sure. Ecm slowly getting there.

Whether Idle
26 January 2021 21:37:23


Ive always rated the CMA  its worth looking at the 12z run as it takes the GEM route to a very tasty conclusion (seen above)


Dover, 5m asl. Half a mile from the south coast.
Heavy Weather 2013
26 January 2021 21:41:00
Is the GEM going to pull of a giant killing of FA cup proportions?
Mark
Beckton, E London
Less than 500m from the end of London City Airport runway.
David M Porter
26 January 2021 21:42:11

Originally Posted by: The Beast from the East 


GEM has been holding the torch for this from the start. Lets all pray it has nailed this. ECM has been all over the place!


 



I think many of the models, even the most trusted ones, have been all over the place at one time or another for a considerable while now, even going back to the late part of November.


The general pattern of this winter seems to have been very difficult for the models to get a proper grip of when it comes to what happens at more than a few days ahead.


Lenzie, Glasgow

"Let us not take ourselves too seriously. None of us has a monopoly on wisdom, and we must always be ready to listen and respect other points of view."- Queen Elizabeth II 1926-2022
Whether Idle
26 January 2021 21:44:22

Originally Posted by: Heavy Weather 2013 

Is the GEM going to pull of a giant killing of FA cup proportions?


I fancy a final played out in a blizzard between GEM and CMA


Dover, 5m asl. Half a mile from the south coast.
tallyho_83
26 January 2021 21:50:48

Originally Posted by: JRobinson 


I’ve never seen the Control and Op match each other so closely for virtually the whole of the run in terms of 850s.


Hopefully they are setting the trend and the rest of the members will follow suit.


GEFS 12z



That diagram of the ENS is so much clearer - could you send me the link to it please? :)


Home Location - Kellands Lane, Okehampton, Devon (200m ASL)
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Brian Gaze
26 January 2021 22:00:19

12z GEFS update looked similar to recent ones. No decisive shift into the very cold bucket yet and I'd still favour a cold or rather cold period during the first third of Feb. Snow mostly in the north.


 



Brian Gaze
Berkhamsted
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Whether Idle
26 January 2021 22:15:14

Thee 18z ICON out to 120.  Looks to be packed with slider lows that could bring snow (and cold rain ) on an axis aligned WNW - ESE. to the southern half of the UK. Fascinating.


Dover, 5m asl. Half a mile from the south coast.
Jiries
26 January 2021 22:21:34

http://www.meteociel.fr/modeles/gfse_cartes.php?&ech=72&mode=1&carte=1


Looking far ahead that really deep cold are in China and Japan covered in deep cold and the 8C uppers goes down as far to the tail shape of northern Philippines before the tropical warmth push back again. It would be classed as cold for them at 20C day time or so in north Luzon island.

ballamar
26 January 2021 22:32:50
It’s painful watching the slow demise of the low on the 18z GFS. Looks like the cold could flood in at any point
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