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moomin75
12 December 2015 18:26:08


Xmas Day GEFS12z postage stamps. (Click through for full sized version)



Originally Posted by: Brian Gaze 

Blimey Brian. Perbs 16 and 20 are completely insane. Record Christmas Day if either of those verify. In fact if Perb 20 verified somewhere could top 18 degrees. They won't verify like that but crikey those two are warm. 


Witney, Oxfordshire
100m ASL
Hendon Snowman
12 December 2015 18:50:26


Blimey Brian. Perbs 16 and 20 are completely insane. Record Christmas Day if either of those verify. In fact if Perb 20 verified somewhere could top 18 degrees. They won't verify like that but crikey those two are warm. 


Originally Posted by: moomin75 


 


And what about the other 20 perbs

moomin75
12 December 2015 19:05:38


 


 


And what about the other 20 perbs


Originally Posted by: Hendon Snowman 

I was cherry picking like everyone else does.....


i concur the others are all considerably colder!! Hopefully one step forward today as there does appear to be a slow trend towards more winter like conditions at last.


Witney, Oxfordshire
100m ASL
JACKO4EVER
12 December 2015 19:14:03


Blimey Brian. Perbs 16 and 20 are completely insane. Record Christmas Day if either of those verify. In fact if Perb 20 verified somewhere could top 18 degrees. They won't verify like that but crikey those two are warm. 


Originally Posted by: moomin75 


coolyeh, bbq Christmas turkey lol

KevBrads1
12 December 2015 19:20:31


Blimey Brian. Perbs 16 and 20 are completely insane. Record Christmas Day if either of those verify. In fact if Perb 20 verified somewhere could top 18 degrees. They won't verify like that but crikey those two are warm. 


Originally Posted by: moomin75 


Did you check the pressure charts for those two perbs? No good just looking at the 850hpa at this time of the year, they could be high uppers accompanied with a high pressure . 


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moomin75
12 December 2015 19:44:50


 


Did you check the pressure charts for those two perbs? No good just looking at the 850hpa at this time of the year, they could be high uppers accompanied with a high pressure . 


Originally Posted by: KevBrads1 

I didn't to be honest but I am basing it on being a long fetch south westerly as has been the case throughout December so far. 


Edit. I have now and certainly not so warm as you say. That said, the pressure charts are showing these as long fetch southerly winds wafting up from North Africa so would think they are extremely unreliable.


Witney, Oxfordshire
100m ASL
David M Porter
12 December 2015 20:09:30

While next week certainly looks mild for virtually all of the UK, there does seem to be some consistency from the GFS and ECM op runs at the moment that it will turn at least a little colder during the week leading up to Christmas. I reckon that were what is shown at T+240 on the ECM 12z to verify, it would feel decidedly chilly in northern areas, and maybe some wintry precipitation to boot.


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
bledur
12 December 2015 20:25:26

A downward trend towards Christmas as colder air over Greenland gets picked up in the depression track


Slideshow image

Gooner
12 December 2015 20:37:40


I was cherry picking like everyone else does.....


i concur the others are all considerably colder!! Hopefully one step forward today as there does appear to be a slow trend towards more winter like conditions at last.


Originally Posted by: moomin75 


Nothing wrong with that K


Whats good for the goose eh


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Gooner
12 December 2015 20:40:51


A seasonal Xmas at least ,,,,if verified


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


moomin75
12 December 2015 20:41:32


 


Nothing wrong with that K


Whats good for the goose eh


Originally Posted by: Gooner 

Exactly Marcus.


Witney, Oxfordshire
100m ASL
Gooner
12 December 2015 20:42:49

No chart available for the selected hour. Many charts start at 3 hours ahead, so if you have 0 hours selected try stepping forward or selecting a later hour.


Certainly looks as though there will be a lowering of temps,running up to Xmas


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


JACKO4EVER
12 December 2015 21:39:27
There's been some hints in the output for a cooler snap around xmas so that wouldn't come as a surprise Marcus. One to watch for you coldies
Retron
13 December 2015 05:29:37

I've seen worse Christmas Day charts!



Leysdown, north Kent
Retron
13 December 2015 06:02:31

The first "silly season" chart of the year - member 20 of this morning's GEFS. Oh, if only this could come off!



(That's -19.2C at 850 over eastern Kent, 498dam 1000-500 thickness, -5C surface temperature!)


Obviously it's most unlikely to happen, but it does show that it's never, ever safe to write off a whole month in the first couple of weeks.


 


EDIT: And just to balance things, here's the mildest chart (at 850) from all the ensembles this morning:



Leysdown, north Kent
Polar Low
13 December 2015 06:24:55

Snow lake effect  if only or Dec heatwave



The first "silly season" chart of the year - member 20 of this morning's GEFS. Oh, if only this could come off!



(That's -19.2C at 850 over eastern Kent, 498dam 1000-500 thickness, -5C surface temperature!)


Obviously it's most unlikely to happen, but it does show that it's never, ever safe to write off a whole month in the first couple of weeks.


 


EDIT: And just to balance things, here's the mildest chart (at 850) from all the ensembles this morning:



Originally Posted by: Retron 

Nordic Snowman
13 December 2015 07:02:59

ECM Op showing some interest this morning.


 


http://www.wetterzentrale.de/pics/Recm1921.gif


Bjorli, Norway

Website 
doctormog
13 December 2015 07:09:59


ECM Op showing some interest this morning.


 


http://www.wetterzentrale.de/pics/Recm1921.gif


Originally Posted by: Nordic Snowman 


The ECM 00z output is a bit of a surprise compared with previous runs and other models. Pattern change or just a little bit more chaos thrown into the mix?


nsrobins
13 December 2015 07:33:22
Yes the prize for first premium six-pack chart of the year goes to Pert 20 this morning. Ripper!

The trend towards cooler and very noisy zonality into Christmas week continues. Rain and very strong winds will likely dominate the discussion.
Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
roger63
13 December 2015 08:03:16


ECM Op showing some interest this morning.


 


http://www.wetterzentrale.de/pics/Recm1921.gif


Originally Posted by: Nordic Snowman 


http://www.meteociel.fr/modeles/ecmwf.php?ech=216&mode=1&map=0&type=0&archive=0


Yes  ECM seem s at odds to the GFS zonality

roger63
13 December 2015 08:17:19

http://www.meteociel.fr/modeles/gefs_cartes.php?ech=300&code=4&mode=0&carte=0


Zonality seems to be the Xmas  day majority.If this ENS verified damaging winds I think.

WMB
  • WMB
  • Advanced Member
13 December 2015 08:31:17


 


http://www.meteociel.fr/modeles/ecmwf.php?ech=216&mode=1&map=0&type=0&archive=0


Yes  ECM seem s at odds to the GFS zonality


Originally Posted by: roger63 


ECM christmas party yesterday?

Retron
13 December 2015 08:44:13

ECM ensembles - mild for a week, then a good deal of scatter.



Leysdown, north Kent
marting
13 December 2015 08:45:35
There is an interesting split in the 2m temps this morning later in the GFS ensembles, mostly due to higher pressure and a few easterlies
Martin
Martin
Greasby, Wirral.
Nordic Snowman
13 December 2015 08:49:28


 


The ECM 00z output is a bit of a surprise compared with previous runs and other models. Pattern change or just a little bit more chaos thrown into the mix?


Originally Posted by: doctormog 


Let's hope that a trend to something more wintry can develop from this. As Darren showed, there is plenty of scatter beyond day 7 and it will be nice to see how GFS plays out in subsequent runs through today.


Bjorli, Norway

Website 

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