doctormog
20 November 2017 18:25:02

Originally Posted by: JACKO4EVER 


 


yes Doc I raised an eyebrow at the lunchtime forecast, who knows? If these patterns continue then we could be in for a rollercoaster ride for early winter with some lucky few having a surprise snowfall or two. 



It’s been so long since a decent snowfall here I would be more shocked than surprised. 


Here’s the ECM 12z chart for Saturday http://www.wetterzentrale.de/maps/ECMOPEU12_120_1.png 


Not overly mild but possibly not overly wintry even if it is cool (with the cooler air in about 48hrs earlier than this in northern parts)


Ally Pally Snowman
20 November 2017 18:29:00

Originally Posted by: JACKO4EVER 


 


yes Doc I raised an eyebrow at the lunchtime forecast, who knows? If these patterns continue then we could be in for a rollercoaster ride for early winter with some lucky few having a surprise snowfall or two. 



Yes it was a strange forecast seems to go against all output at the moment. and 17c reached today like you said Jacko.


Bishop's Stortford 85m ASL.
Polar Low
20 November 2017 18:29:54

EC


  feeling bitter in the strong wind



 

Polar Low
20 November 2017 18:37:06
Ally Pally Snowman
20 November 2017 18:38:28

Nice ecm up to 168h but probably not cold enough for lowland snow in England.


 


Bishop's Stortford 85m ASL.
Caz
  • Caz
  • Advanced Member
20 November 2017 18:47:41

Originally Posted by: JACKO4EVER 

Don't hold your breath Caz, the BBC at lunchtime went with the milder weather for the south and Midlands hanging on in there.
All eyes down for an interesting set of runs......

  No I won’t hold my breath, I’ve been on here long enough to know better, but I’ll keep my eye on things.  


Market Warsop, North Nottinghamshire.
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Polar Low
20 November 2017 18:48:52

take it with open arms  good start to winter


http://www.meteociel.fr/modeles/ecmwf.php?ech=192&mode=1&map=1&type=0&archive=0


 


 


Originally Posted by: Ally Pally Snowman 


Nice ecm up to 168h but probably not cold enough for lowland snow in England.


 


Ally Pally Snowman
20 November 2017 18:53:16

Originally Posted by: Polar Low 


take it with open arms  good start to winter


http://www.meteociel.fr/modeles/ecmwf.php?ech=192&mode=1&map=1&type=0&archive=0


 


 


 



 


Definitely take it but could do with being a couple of degrees colder


Bishop's Stortford 85m ASL.
Polar Low
20 November 2017 18:55:13

should get a pump up waa at 240 look at source feed


Originally Posted by: Ally Pally Snowman 


 


 


Definitely take it but could do with being a couple of degrees colder


Rob K
20 November 2017 18:58:01
Quite a stiff easterly by 216 (albeit not that cold) on the ECM then cold and slack at 240. Could be worse!
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
bledur
20 November 2017 18:59:08

Originally Posted by: Gooner 


 


 


Id be amazed to see that , 13c or 14c probably, your a tad optimistic Jas


 



 


I dont know, look at today.


 



 


 

David M Porter
20 November 2017 19:00:52

Originally Posted by: Rob K 

Quite a stiff easterly by 216 (albeit not that cold) on the ECM then cold and slack at 240. Could be worse!


Looks a pretty reasonable run to me too!


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
Polar Low
20 November 2017 19:04:53

is this moment of truth or death it looks tricky many swaves areas around grenny have done us before


http://www.meteociel.fr/modeles/ecmwf.php?ech=144&mode=1&map=1&type=0&archive=0


ukmo


http://www.meteociel.fr/modeles/ukmo2.php?nh=1&ech=144&carte=1021


 


 

Arcus
20 November 2017 19:08:51

Originally Posted by: doctormog 


 


Thats interesting. I wonder what model they are using as all the publicly available data I can see have it much cooler even further south by the weekend as does the Met Office.


Whether it likely to be cold enough for any wintry weather is a different matter. None of the current charts seem to show the milder conditions hanging on in central England at the weekend. 



The reality of that lunchtime forecast was that he stressed that there was uncertainty on how far south the colder air would get.


Ben,
Nr. Easingwold, North Yorkshire
30m asl
Gandalf The White
20 November 2017 19:30:52

Originally Posted by: Ally Pally Snowman 


 


 


Definitely take it but could do with being a couple of degrees colder



There's a large difference between UKMO and ECM at T+120 for the predicted 500-1,000 hPa Thickness over the SE. The UKMO chart has around 530-535 whilst ECM has around 10 dam lower: that's the difference between certain rain and probable snow.


Incidentally, the weather forecast on BBC N24 at 7.30 said the colder air would reach the entire country by Saturday.


Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


Ally Pally Snowman
20 November 2017 20:01:38

Originally Posted by: Gandalf The White 


 


There's a large difference between UKMO and ECM at T+120 for the predicted 500-1,000 hPa Thickness over the SE. The UKMO chart has around 530-535 whilst ECM has around 10 dam lower: that's the difference between certain rain and probable snow.


Incidentally, the weather forecast on BBC N24 at 7.30 said the colder air would reach the entire country by Saturday.



 


Yes its probably cold enough at 120 but doesn't get cold enough again until 240. The day 10 chart is stunning looks like a prolonged cold spell from there 81 esque.


 


Bishop's Stortford 85m ASL.
squish
20 November 2017 20:37:57
http://modeles.meteociel.fr/modeles/cma/runs/2017112012/cmanh-0-240.png 

CMA along the lines of 00z Gem and certainly a degree of anticipation building for me through looking at the current model output. :)

D.E.W on Dartmoor. 300m asl
tallyho_83
20 November 2017 20:53:09

This could bring some wintry potential for eastern coastal areas - a long way off - but nice to see some northerly shots even in FI:


 



Home Location - Kellands Lane, Okehampton, Devon (200m ASL)
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Joe Bloggs
20 November 2017 21:48:36

18z GFS rolling out. 


6pm Thursday. T+72 hours. Reliable territory! 


http://www.wetterzentrale.de/maps/GFSOPEU18_72_1.png


Heavy snow showers pushing into the NW Highlands. 😊



Manchester City Centre, 31m ASL

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