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David M Porter
02 February 2015 16:41:58


http://www.meteociel.fr/ukmo/runs/2015020212/UN144-21.GIF?02-17


Very different shaped high on UKMO.


Originally Posted by: The Beast from the East 


It's almost as if that High is trying to retrogress northwards, but never quite manages it due to the strength of the polar vortex.


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
Quantum
02 February 2015 16:46:04

The thing is, that HP is dying to go to greenland, it wants to do that. And its a battle of attrition between the HP and the polar vortex, with no winner well into FI. That being said this is like a chess game between two grand masters of almost identical skill, but with one player being ever so slightly superior (the HP), so even though you would expect a stalemate, the HP checkmating the polar vortex is far more likely than the converse. 


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.
Quantum
02 February 2015 16:52:07


This is an insane chart, that 1902 record is definitely threatened. Not really sure what to expect from such a potent 'anti-storm'. 


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.
Gusty
02 February 2015 16:55:00

..but just look at the trends guys..2 days ago this high was poised to sink southwards into Europe opening up the atlantic, yesterday most of the output shifted the high to the west opening us up to an anticyclonic NW'ly and now we have the high desperate to get to Greenland but keep most of the south in a cold continental, all be it dry easterly of sorts.


All the time we either have either a brutal trough digging into Scandinavia or a Siberian easterly in eastern Europe.


With the atlantic clearly moving into its more traditional quieter period things are screaming potential for the UK.


Just sayin wink


Steve - Folkestone, Kent
Current conditions from my Davis Vantage Vue
https://www.wunderground.com/dashboard/pws/IFOLKE11 
Join Kent Weather on Facebook.
https://www.facebook.com/stevewall69/ 



Jive Buddy
02 February 2015 16:56:56



This is an insane chart, that 1902 record is definitely threatened. Not really sure what to expect from such a potent 'anti-storm'. 


Originally Posted by: Quantum 


Can't be far off an Omega Block?...Darren, what say you?


It's not over, until the fat Scandy sinks.....

Location: St. Mary Cray, S.E. London border with Kent.
Gavin P
02 February 2015 16:58:24

One thing's for sure, Europe is going to be absolutely frozen during the coming week or so...


Rural West Northants 120m asl
Short, medium and long range weather forecast videos @ https://www.youtube.com/user/GavsWeatherVids
Jive Buddy
02 February 2015 16:59:09


..but just look at the trends guys..2 days ago this high was poised to sink southwards into Europe opening up the atlantic, yesterday most of the output shifted the high to the west opening us up to an anticyclonic NW'ly and now we have the high desperate to get to Greenland but keep most of the south in a cold continental, all be it dry easterly of sorts.


All the time we either have either a brutal trough digging into Scandinavia or a Siberian easterly in eastern Europe.


With the atlantic clearly moving into its more traditional quieter period things are screaming potential for the UK.


Just sayin wink


Originally Posted by: Gusty 


And the longer and stronger we get this solid cold in place, the greater the battle line when the Atlantic finally does win through (in a month or so ).


It's not over, until the fat Scandy sinks.....

Location: St. Mary Cray, S.E. London border with Kent.
Gusty
02 February 2015 17:01:54


 


And the longer and stronger we get this solid cold in place, the greater the battle line when the Atlantic finally does win through (in a month or so ).


Originally Posted by: Jive Buddy 


Well said that man ! cool


Steve - Folkestone, Kent
Current conditions from my Davis Vantage Vue
https://www.wunderground.com/dashboard/pws/IFOLKE11 
Join Kent Weather on Facebook.
https://www.facebook.com/stevewall69/ 



Retron
02 February 2015 17:02:38


Can't be far off an Omega Block?...Darren, what say you?


Originally Posted by: Jive Buddy 


It's a diffluent block (otherwise known as a Rex block in the States):


http://weatherfaqs.org.uk/book/export/html/144


 


Leysdown, north Kent
Whether Idle
02 February 2015 17:06:37


 


And the longer and stronger we get this solid cold in place, the greater the battle line when the Atlantic finally does win through (in a month or so ).


Originally Posted by: Jive Buddy 


You are getting the feeling Budz


Dover, 5m asl. Half a mile from the south coast.
Jive Buddy
02 February 2015 17:06:54


 


It's a diffluent block (otherwise known as a Rex block in the States):


http://weatherfaqs.org.uk/book/export/html/144


 


Originally Posted by: Retron 


Well I was close....I got the word "block" correct


Cheers Darren


It's not over, until the fat Scandy sinks.....

Location: St. Mary Cray, S.E. London border with Kent.
llamedos
  • llamedos
  • Advanced Member Topic Starter
02 February 2015 17:09:24


 


Well I was close....I got the word "blank" correct


Cheers Darren


Originally Posted by: Jive Buddy 

No points on a scrabble board, but very close....well done Master B


"Life with the Lions"

TWO Moderator
Jive Buddy
02 February 2015 17:11:14


 


You are getting the feeling Budz


Originally Posted by: Whether Idle 


I'm always getting the feeling, but that's just an age thing


Something else that's come to mind from days gone by, was old Ron Lobeck on Meridian TV. He used to have a saying that went something like "if a block holds for 3 days, it'll hold up to 7, if it holds after 7, it'll go on to 11"....or something like that?


It's not over, until the fat Scandy sinks.....

Location: St. Mary Cray, S.E. London border with Kent.
Gavin P
02 February 2015 17:11:57

Quite a few cold northerly shots on GFS 12z FI...


Rural West Northants 120m asl
Short, medium and long range weather forecast videos @ https://www.youtube.com/user/GavsWeatherVids
Charmhills
02 February 2015 17:17:01


..but just look at the trends guys..2 days ago this high was poised to sink southwards into Europe opening up the atlantic, yesterday most of the output shifted the high to the west opening us up to an anticyclonic NW'ly and now we have the high desperate to get to Greenland but keep most of the south in a cold continental, all be it dry easterly of sorts.


All the time we either have either a brutal trough digging into Scandinavia or a Siberian easterly in eastern Europe.


With the atlantic clearly moving into its more traditional quieter period things are screaming potential for the UK.


Just sayin wink


Originally Posted by: Gusty 


Indeed Steve.


Loughborough, EM.

Knowledge is power, ignorance is weakness.

Duane.
colin46
02 February 2015 17:17:44
I'd like to know please from which direction would we get the coldest of temperatures,i always thought it was from an ENE direction,and are the models hinting at this for the near future?
shine on you crazy diamond
192.104 m / 630.262 feet ASL
nsrobins
02 February 2015 17:22:07


Quite a few cold northerly shots on GFS 12z FI...


Originally Posted by: Gavin P 


Well you'll probably guess I'm not buying it at this time. It will take a monumental shift from the 00Z and 06Z ENS set to get that high far enough West and North to bring the Arctic in again ('again' used loosely)

Not saying it won't but it would be very unusual.


Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Russwirral
02 February 2015 17:22:12
That 12z is teetering on an awesome run. Germany is about where you need to be on this run, Looks like theyre about to go into the freezer well and truly

If that HP would be so nice as push back back a bit further West then that would be just dandy.
Russwirral
02 February 2015 17:24:27
Also - out of interest... how does the current run of the GFS model with the OPI forecast? (now theres a term i havent heard around these parts in a while)

Anyone been tracking if the OPI has been succesful so far this winter?
Whether Idle
02 February 2015 17:29:47

That 12z is teetering on an awesome run. Germany is about where you need to be on this run, Looks like theyre about to go into the freezer well and truly

If that HP would be so nice as push back back a bit further West then that would be just dandy.

Originally Posted by: Russwirral 


As Steve says, its about trends.  If the trend of positioning the block a little further N and W can be maintained then we could get that cold shot.  If time permits I look at all models rather than just the GEFS as I think over reliance on them can lead to errors of judgement.


There's a lot to look at and discuss, and snow chances for many over the next 4 days


edit: here's the GEM,@ 144 Im aware some in here don't hold it in very high esteem though



and the model of the day is UKMO - a bitter easterly @96 and then setting up for a northerly @ 144?  Fascinating times.


Modele UKMO - Carte prévisions


Modele UKMO - Carte prévisions


 


Dover, 5m asl. Half a mile from the south coast.
Russwirral
02 February 2015 17:53:40


 


 


and the model of the day is UKMO - a bitter easterly @96 and then setting up for a northerly @ 144?  Fascinating times.


Modele UKMO - Carte prévisions


Modele UKMO - Carte prévisions


 


Originally Posted by: Whether Idle 


 


Im not quite sure what you mean by the METO - to me thats just cold at the surface with very mild uppers.  That kinda setup is really bad for cold/snow, as theyre usually really really good at letting any cold slip very easlily to central europe over and over again (as the GFS shows).  Maintaining its position for long periods and slowly introducing spring.


 


Those kinda setups can be very devlish in their nature.  Id rather take Zonality TBH with the chance of a northerly.


Whether Idle
02 February 2015 17:58:15


 


 


Im not quite sure what you mean by the METO - to me thats just cold at the surface with very mild uppers.  That kinda setup is really bad for cold/snow, as theyre usually really really good at letting any cold slip very easlily to central europe over and over again (as the GFS shows).  Maintaining its position for long periods and slowly introducing spring.


 


Those kinda setups can be very devlish in their nature.  Id rather take Zonality TBH with the chance of a northerly.


Originally Posted by: Russwirral 


I mean that it could just lead to a glancing northerly by around Feb 9th.  It probably wont, but the chart shows that a high ridging N could just do that later on. It would look something like this Russ (taken from the GEFS):


 



Dover, 5m asl. Half a mile from the south coast.
Nordic Snowman
02 February 2015 18:10:22


http://www.meteociel.fr/ukmo/runs/2015020212/UN144-21.GIF?02-17


Very different shaped high on UKMO.


Originally Posted by: The Beast from the East 



A shame it is on the UKMO at T144. My views on that are well documented


Now.... if ECM can......


Bjorli, Norway

Website 
Whether Idle
02 February 2015 18:29:58

ECM in 6 days...Brrrr -14s approaching Shetland and -10s across Scotland.  Doc will be happy.



Dover, 5m asl. Half a mile from the south coast.
Gooner
02 February 2015 18:32:58


One thing's for sure,Mainland Europe is going to be absolutely frozen during the coming week or so...


Originally Posted by: Gavin P 


Just a slight edit


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


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