DPower
21 January 2019 14:49:17
Know doubt in my mind that without the strat responding you will not see big freezes as in Feb 56,winter63, 87, 09/10, Dec 10 etc. Whether this perculates from a minor strat warming or a full blown SSW. The strat at least up to 30mb is normally affected to see strong enough hlb's to deliver potent cold to our shores. There is a big difference also between splits and displacements. This time around we have had a split in quite a favorable way with the vortices displaced to either side of the pole and greater gph to our north. The only problem lies in the very slow downwelling.
Dispite a slight knee jerk reaction to the output yesterday and demise of the easterlies by the end of the working week I am convinced we will see a prolonged period of cold/very cold wintry weather to come. My money would be on the gfsp synoptic development, with high pressure to the east building over the top of a sinking trough and then strengthening heights to our north ushering in frigid continental Arctic air.
Saint Snow
21 January 2019 15:13:53

Originally Posted by: Joe Bloggs 


 


Yes I think it looks quite exciting for Scotland, especially for the west.


Plenty of opportunities over the next 2 weeks I think.



For England and Wales - I understand the lack of excitement for now. 



 



 



 


There's perhaps a degree difference (if that) in the 850's between the Ens for East Kilbride and the Ens for Manchester. If people are getting giddy about the West Scotland prospects, then they should expand that into Northern England, too.


I'm not particularly hopeful we'll get anything worth getting excited over, but there've been a number of instances over the years where a forecasted cold spell has failed to come off, but a week or so later a different cold spell seemingly comes out of nowhere (the reality is that it was showing in the models all along, but a combination of a renewed distrust over the models, the actual cold spell not being as headline-grabbing as the initial 'fail', and often not impacting the S/SE, means it's overlooked)


 


 



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
Joe Bloggs
21 January 2019 15:29:37

Originally Posted by: Saint Snow 


 


 



 



 


There's perhaps a degree difference (if that) in the 850's between the Ens for East Kilbride and the Ens for Manchester. If people are getting giddy about the West Scotland prospects, then they should expand that into Northern England, too.


I'm not particularly hopeful we'll get anything worth getting excited over, but there've been a number of instances over the years where a forecasted cold spell has failed to come off, but a week or so later a different cold spell seemingly comes out of nowhere (the reality is that it was showing in the models all along, but a combination of a renewed distrust over the models, the actual cold spell not being as headline-grabbing as the initial 'fail', and often not impacting the S/SE, means it's overlooked)


 


 



Good points Saint.


We might see something over the next fortnight or so - lots of NW'ly incursions are forecast. Cold 850's and a light drift off the Irish Sea could result in a surprise or two, with a bit of luck.


We'll see - certainly no exceptional cold in the outlook.



Manchester City Centre, 31m ASL

Russwirral
21 January 2019 15:30:27
BBC now showing wintry showers for this weekend around here... wasnt there this morning. I can see the GFS had some wintryness about on the 6z run. But the BBC wouldnt show this without perhaps a stronger hint to go on. They usually update an hour or two before the GFS runs, So I suspect the next run might show somewhat of an upgrade back to blues throughout for this weekend. We will see....

It would fall in line with previous flip/flops we have seen yrs gone by.
picturesareme
21 January 2019 15:33:04

Originally Posted by: Saint Snow 


 


 



 



 


There's perhaps a degree difference (if that) in the 850's between the Ens for East Kilbride and the Ens for Manchester. If people are getting giddy about the West Scotland prospects, then they should expand that into Northern England, too.


I'm not particularly hopeful we'll get anything worth getting excited over, but there've been a number of instances over the years where a forecasted cold spell has failed to come off, but a week or so later a different cold spell seemingly comes out of nowhere (the reality is that it was showing in the models all along, but a combination of a renewed distrust over the models, the actual cold spell not being as headline-grabbing as the initial 'fail', and often not impacting the S/SE, means it's overlooked)


 


 



NW winds don't bring anything east of the pennines either so from a snow point if view it's a fail there to.

Saint Snow
21 January 2019 15:51:57

Originally Posted by: picturesareme 


 


NW winds don't bring anything east of the pennines either so from a snow point if view it's a fail there to.



 


The Leeds & Sheffield Ens are showing no shortage of ppn.





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
Russwirral
21 January 2019 16:12:49
The more i look at the charts the more i realise the UK has become the warm front grave yard... where warm sectors come to die.
doctormog
21 January 2019 16:16:40
It is still a generally cold outlook with a milder blip on Friday. Wintry potential for some and frustration for others.

This theme continues on the 12z GFS op so far.
Gooner
21 January 2019 16:20:42

12z different again , keener on keeping a cold NWly flow by the looks 



Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


picturesareme
21 January 2019 16:24:23

Originally Posted by: Saint Snow 


 


 


The Leeds & Sheffield Ens are showing no shortage of ppn.





Neither location is particularly east either with both being very central, and sitting towards the much lower south pennine area.

Russwirral
21 January 2019 16:25:02
This weekend could be potentially quite wintry somewhere in the UK, with a number of mild features running into colder air. Snow could be the difference of 20 miles from a covering and mild rain.

Will be interesting to see this develop.
Gooner
21 January 2019 16:45:08

Originally Posted by: Russwirral 

This weekend could be potentially quite wintry somewhere in the UK, with a number of mild features running into colder air. Snow could be the difference of 20 miles from a covering and mild rain.

Will be interesting to see this develop.


Sometimes these boundary clashes can really deliver , I have missed some in the past but also had a really good dump


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Gooner
21 January 2019 16:49:41

Quite a good 12z from GFS …..…….recovered from the pants of 6z 


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Russwirral
21 January 2019 16:50:10
144 - onwards is looking very snowy -nation wide. Which is unusual on a northwesterly. Very complicated trough delivering lots of precip features which lots of heavy frontal snow for everyone.

Question is, will it be there tonight?/
ballamar
Rob K
21 January 2019 16:51:14
It’s clear that the GFSP “snow depth” charts are equally as ridiculously poor as the old GFS. According to the latest run, by midnight tonight more than three quarters of the country will have lying snow.
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
Joe Bloggs
21 January 2019 16:54:00

Originally Posted by: Russwirral 

This weekend could be potentially quite wintry somewhere in the UK, with a number of mild features running into colder air. Snow could be the difference of 20 miles from a covering and mild rain.

Will be interesting to see this develop.


You've changed your tune. 


I agree btw.  


Nice to see a more wintry 12z op run, but the potential was already there, and little has changed. 


Plenty of snow opportunities, especially for the north.



Manchester City Centre, 31m ASL

nsrobins
21 January 2019 17:00:04
It would be a cruel irony that if and when a northeasterly arrives the cold air has dissolved away (as per the jam section of GFS).

Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Russwirral
21 January 2019 17:02:05

Originally Posted by: Joe Bloggs 


 


You've changed your tune. 


I agree btw.  


Nice to see a more wintry 12z op run, but the potential was already there, and little has changed. 


Plenty of snow opportunities, especially for the north.



 


yeh its funny what a cup of tea and a walk can do for your soul.


 


Serioulsy though.  Its odd how slight changes here or there can change the perception of a chart etc.  Theres an ounce more hope on the latest run.  The beasterly isnt happening.  But there still is quite alot of potential.  Only problem is, the type of charts that are being presented are classic marginal events, so this wont be the end of the heart ache,


 


 


 


JACKO4EVER
21 January 2019 17:12:41

Originally Posted by: Rob K 

It’s clear that the GFSP “snow depth” charts are equally as ridiculously poor as the old GFS. According to the latest run, by midnight tonight more than three quarters of the country will have lying snow.


🤣


and this virtual reality winter just keeps on giving ...

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