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idj20
22 February 2018 16:59:12

If what I'm seeing of the 12z run is to be believed, that would give my East Kent location continuous snow between Tuesday through to Thursday via a Channel streamer.


Folkestone Harbour. 
Rob K
22 February 2018 16:59:19


ARPEGE sending -16 uppers towards western France -12's up to about Lincolnshire



Originally Posted by: Gavin D 


That's only the advance party though. The deep cold pool is still making its way into the Baltic by that stage, ready to hit around T144-168 (if the alignment plays ball).


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
Quantum
22 February 2018 17:00:49

I don't have any adjectives left.


They have all just gone.


 


Twitter: @QuantumOverlord (general), @MedicaneWatch (medicane/TC stuff)
2023/2024 Snow days (approx 850hpa temp):
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)

Total: 8 days with snow/sleet falling.

2022/2023 Snow days (approx 850hpa temp):

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

Total: 7 days with snow/sleet falling.

2021/2022 Snow days (approx 850hpa temp):

26/11 (-5), 27/11 (-7), 28/11 (-6), 02/12 (-6), 06/01 (-5), 07/01 (-6), 06/02 (-5), 19/02 (-5), 24/02 (-7), 30/03 (-7), 31/03 (-8), 01/04 (-8)
Total: 12 days with snow/sleet falling.
tallyho_83
22 February 2018 17:02:33

latest 12z temps @850hpa - Quite a lot of snow to the south pushing up from channel:


Notice the warmer air never quite reaches the SE coast unlike in 06z chart for midday Friday thus prolonging the cold.


I expect more changes in the 18z but a good update for those who what cold and snow south of M4 esp for Devon.



 


06z chart



Home Location - Kellands Lane, Okehampton, Devon (200m ASL)
---------------------------------------
Sean Moon
Magical Moon
www.magical-moon.com


Gavin D
22 February 2018 17:04:35

12z ICON


some faraway beach
22 February 2018 17:05:37

An unprecedently powerful sudden stratospheric warming finally leads to unprecedented easterlies in the model output.

Makes sense really.


Edit: And unprecedented agreement for an unprecedented length of time between the models. There still hasn't been any sort of substantial downgrade.


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.
SJV
22 February 2018 17:06:27


12z ICON


Originally Posted by: Gavin D 


Very nice Gavin  Shows a number of streamers potentially setting up and the shortwave that has been consistently modelled to attack from the east on Tuesday. Happy days! 

David M Porter
22 February 2018 17:09:12


I don't have any adjectives left.


They have all just gone.


 


Originally Posted by: Quantum 


Same here Q!


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
SEMerc
22 February 2018 17:09:46

Assuming snow cover, coupled with light winds in a favoured location, there could be a new entry in this list.


https://blog.metoffice.gov.uk/2012/10/16/top-ten-coldest-recorded-temperatures-in-the-uk/

David M Porter
22 February 2018 17:10:16


12z ICON



Originally Posted by: Gavin D 


Wow!


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
kmoorman
22 February 2018 17:10:16


 


Very nice Gavin  Shows a number of streamers potentially setting up and the shortwaves that has been consistently modelled to attack from the east on Tuesday. Happy days! 


Originally Posted by: SJV 


 


I'd hope / imagine they'll be more widespread as well when we get to that time.


Home: Durrington, Worthing, West Sussex. (16 ASL)
Work: Canary Wharf, London
Follow me on Twitter @kmoorman1968
moomin75
22 February 2018 17:11:10


 


Same here Q!


Originally Posted by: David M Porter 

Well David, as you know, a Moomin ramp is a rare thing.....I did say back in December I thought we'd get something, but I confess I didn't think it'd keep us waiting quite this long.


Bring it on! 


Witney, Oxfordshire
100m ASL
Russwirral
22 February 2018 17:13:29
Ill be honest. Ive not seen charts that good before.

End of next week is a proper snowmagedon scenario.

This currently has all the ingredients we want to see, and come to these boards to patiently discuss and miss time and time again.

David M Porter
22 February 2018 17:14:09

I think it is now fair to say that, with the notable exceptions of the build-up to the freezes of winter 2009/10 and late November & December 2010, there hasn't been a period of model watching quite like this in TWO history. What we are seeing indicated in the model runs at the moment for next week is the sort of synoptics that we were told not so long ago by some members that were supposedly confined to history! Hmmmm.


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
kmoorman
22 February 2018 17:15:02

Just flicking through the GEFS and there's definitely a new 'trend' at about 192Z, so Friday lunchtime, for the low from the South to be more to the SE of the UK, meaning much colder air involved. 


Home: Durrington, Worthing, West Sussex. (16 ASL)
Work: Canary Wharf, London
Follow me on Twitter @kmoorman1968
roadrunnerajn
22 February 2018 17:16:15

[quote=David M Porter;977227]


 


Wow!


 


Can you push that channel streamer 40 miles further north


Germoe, part of the breakaway Celtic Republic.
SEMerc
22 February 2018 17:16:17


I think it is now fair to say that, with the notable exceptions of the build-up to the freezes of winter 2009/10 and late November & December 2010, there hasn't been a period of model watching quite like this in TWO history. What we are seeing indicated in the model runs at the moment for next week is the sort of synoptics that we were told not so long ago by some members that were supposedly confined to history! Hmmmm.


Originally Posted by: David M Porter 


It's down to the modern era, I'm tellin' ya.

IanT
  • IanT
  • Advanced Member
22 February 2018 17:19:45

 


I'm not sure if you 'got' Brian's joke...   he means downgrade, as in the temps are lower.  


Originally Posted by: kmoorman 


 


I don’t think you’ve got it either..!


Woking, Surrey. 40m asl.
kmoorman
22 February 2018 17:21:22


 


I don’t think you’ve got it either..!


Originally Posted by: IanT 


 


Why, is it more sophisticated than an play on words?


Home: Durrington, Worthing, West Sussex. (16 ASL)
Work: Canary Wharf, London
Follow me on Twitter @kmoorman1968
SJV
22 February 2018 17:33:38


 


 


Why, is it more sophisticated than an play on words?


Originally Posted by: kmoorman 


I'm as lost as you are now 



Anyway, GFS short ensembles looking trouble free


 


 

ballamar
22 February 2018 17:37:59
Well I suppose you could say still on track little lows could develop in that easterly flow the same as polar lows do!! Beasterlows
Solar Cycles
22 February 2018 17:42:44
I might finally start to raise an eyebrow towards next weeks potential, I’ll still wait until the weekend for a more clearer picture of snow for IMBY. All in all not a bad days model watching thus far.
tallyho_83
22 February 2018 17:47:20

Ill be honest. Ive not seen charts that good before.

End of next week is a proper snowmagedon scenario.

This currently has all the ingredients we want to see, and come to these boards to patiently discuss and miss time and time again.

Originally Posted by: Russwirral 


The great thing is that it's not of this transitional rubbish of rain to snow and showers becoming wintry or sleety snow falling on wet surfaces etc etc 


This is proper cold and because the air and ground would have had time to cool the ground will be dry so the snow will readily settle. 


Home Location - Kellands Lane, Okehampton, Devon (200m ASL)
---------------------------------------
Sean Moon
Magical Moon
www.magical-moon.com


SJV
22 February 2018 17:49:29

All in all not a bad days model watching thus far.

Originally Posted by: Solar Cycles 


Come on! Allow a little excitement in your life  'Not a bad day so far'. It's not a bad day when you find a quid down the side of the sofa, or see that your favourite brand of beer is on offer at the shop.


This, this my friend is a very good day 


 


 


(please play nice ECM!) 

Gavin D
22 February 2018 17:53:35

12z mean again going less cold during the 1st full week of March few more milder/less cold runs among the scatter.


Bulk of next week looks bitter


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