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Gooner
11 February 2016 22:49:34

Interesting from IF


12z EC delivers snow across much of northern/western/central UK by end of Thursday: all of Wales and for England, approx Scarborough down to Bournemouth as eastern boundary; western boundary approx Exmoor to Exeter (plus Dartmoor).  12z UKMO-GM broadly similar ideas (re western bias).  Much water to run under bridge before then, so very low confidence and no individual solution is trustworthy at this point.


Re this weekend, key difference is how 12z EC offers a far less wet day for the south on Saturday (thus also further reducing scope for any snow across e.g. Chilterns, Cotswolds, Downs). UKMO have modified forecast expectations towards this solution (thus also losing yellow wind warning for SW: nonetheless, a few ENS members are still potent). 


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Gooner
11 February 2016 22:54:54


Snow moving across the UK, not what S K L showed us at 21:55 .


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


squish
11 February 2016 22:57:18
Not the worst GFS run I've ever seen....
D.E.W on Dartmoor. 300m asl
Gooner
11 February 2016 22:59:49


Thats a hell of an Easterly................just no cold


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Gooner
11 February 2016 23:02:08

Cold actually does develop over us



Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


PFCSCOTTY
11 February 2016 23:03:08



Snow moving across the UK, not what S K L showed us at 21:55 .


Originally Posted by: Gooner 


 


yes and we know which one most likely to come to fruition! 

Gooner
11 February 2016 23:07:10


 


 


yes and we know which one most likely to come to fruition! 


Originally Posted by: PFCSCOTTY 


Intrestingly enough the beeb forecast doesnt match up to the post by IF,very early days to be writing snow off yet IMO


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Chiltern Blizzard
11 February 2016 23:11:12


At least it's -10c for Marcus: - ha - they said it will turn milder toward the end of next week!? hmm...


Originally Posted by: tallyho_83 


its changed now on 18z, but the 'Banbury' pixel was the coldest pixel (jointly with somewhere in the Alps) in the whole European map!  Unprecedented for winter surely!


Rendlesham, Suffolk 20m asl
Gooner
11 February 2016 23:31:31

http://www.meteociel.fr/ukmo/fax/fax96s.gif?1


96h fax


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Gooner
11 February 2016 23:33:55

http://www.meteociel.fr/ukmo/fax/fax120s.gif?1


120 fax


Fronts fast approaching from the West


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Gandalf The White
11 February 2016 23:38:11


http://www.meteociel.fr/ukmo/fax/fax120s.gif?1


120 fax


Fronts fast approaching from the West


Originally Posted by: Gooner 


The most interesting feature there is the convergence zone over the SE corner.


 


 


Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


Zubzero
11 February 2016 23:41:15


http://www.meteociel.fr/ukmo/fax/fax120s.gif?1


120 fax


Fronts fast approaching from the West


Originally Posted by: Gooner 


The South East crew would be happy with that, not often you see streamers shown on the fax charts.

tallyho_83
11 February 2016 23:59:31


Cold nights - staying well into next weekend. - Hope this materialises.


Not seen a chart like this in a looooooooooong time! - Look at the HP in the Atlantic, over Scandinavia and western Russia - 3000 odd miles of it!


 



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


Gooner
12 February 2016 00:14:03

Latest from IF


Similar themes to GloSea5. Through to (nearly mid) March, temp anomaly either indistinct from climatology or a tad below. Later Feb sees Atlantic ridging; this followed by a return to zonality (tail-end Feb into 1st week of March) with lows tracking to or across NW/N of UK and resurrection of +ve precipitation anomalies widely nationwide, with ENS suggesting a possible spike in this 'wet phase' circa d15-20 (which could of course include colder Pm or even Am incursions). By 2nd week March, almost indistinct MSLP/PPN/Temp anomalies; slight whiff of lows to N/high pressure to SW, but insignificant signal at that range. Net outcome is predominantly W-NW flow regime throughout, irrespective of cyclonic or anticyclonic bias. However, stamps offer variety of possibilities within this broad idea, as might be expected.


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Gandalf The White
12 February 2016 00:19:57


Latest from IF


Similar themes to GloSea5. Through to (nearly mid) March, temp anomaly either indistinct from climatology or a tad below. Later Feb sees Atlantic ridging; this followed by a return to zonality (tail-end Feb into 1st week of March) with lows tracking to or across NW/N of UK and resurrection of +ve precipitation anomalies widely nationwide, with ENS suggesting a possible spike in this 'wet phase' circa d15-20 (which could of course include colder Pm or even Am incursions). By 2nd week March, almost indistinct MSLP/PPN/Temp anomalies; slight whiff of lows to N/high pressure to SW, but insignificant signal at that range. Net outcome is predominantly W-NW flow regime throughout, irrespective of cyclonic or anticyclonic bias. However, stamps offer variety of possibilities within this broad idea, as might be expected.


Originally Posted by: Gooner 


So, basically more of the same with a seasonal temperature trend, i.e. gradual warming, and on the wet side.


Mind you that same model didn't pick up on this imminent cold spell.


 


Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


Ally Pally Snowman
12 February 2016 07:21:28

Very nice GFS this morning with 24 hrs of snow for EA and SE next Thursday.


id be very surprised if sunday night Monday morning didn't see some snow with charts like the one below. Looks ideal for snow showers in the East.


http://www.wetterzentrale.de/pics/Recm721.html


 


Bishop's Stortford 85m ASL.
Ally Pally Snowman
12 February 2016 07:40:59

Ecm also looking good for snow Thursday night in the SE nd EA.


http://www.wetterzentrale.de/pics/Recm1682.html


 


Bishop's Stortford 85m ASL.
Gooner
12 February 2016 07:49:10


The cold continues throughout the week



Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Retron
12 February 2016 07:49:22


Ecm also looking good for snow Thursday night in the SE nd EA.


http://www.wetterzentrale.de/pics/Recm1682.html


Originally Posted by: Ally Pally Snowman 


ECM actually shows no "total frozen precipitation" whatsoever for most of the SE and EA, even out to day 10. The snowline starts just east of Reading, with increasing amounts further west.


Leysdown, north Kent
Gooner
12 February 2016 07:51:21

Weather type GFS We 17.02.2016 12 GMT


Snow crossing the UK , gets stuck in the SE


Weather type GFS Th 18.02.2016 12 GMT


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Ally Pally Snowman
12 February 2016 07:51:52


 


ECM actually shows no "total frozen precipitation" whatsoever for most of the SE and EA, even out to day 10. The snowline starts just east of Reading, with increasing amounts further west.


Originally Posted by: Retron 


 


Ok fair enough let's hope the GFS is correct then for our locations.


Bishop's Stortford 85m ASL.
Shropshire
12 February 2016 08:00:59

Thanks for the charts Gooner, however even if the set-up plays out like this the frontal band will be a weakening feature breaking up as it heads East.


From December 27th 2020, zonality will be banned from mixing with the UK. We appreciate that this may come as a shock to younger people and old Uncle Barty. This ban will last for a minimum of ten days.
Polar Low
12 February 2016 08:16:28

No it does not Ian a small development from a short wave running s/e if gfs is correct


 


Modele GFS - Carte prévisions


 


 


 



Thanks for the charts Gooner, however even if the set-up plays out like this the frontal band will be a weakening feature breaking up as it heads East.


Originally Posted by: Shropshire 

David M Porter
12 February 2016 08:44:12


 


So, basically more of the same with a seasonal temperature trend, i.e. gradual warming, and on the wet side.


Mind you that same model didn't pick up on this imminent cold spell.


 


Originally Posted by: Gandalf The White 


Indeed.


My recollection of the model output from a week or so ago is that it was looking rather questionable for a while as to whether the quieter spell we are now going into, and which had originally been forecast by the MetO towards the end of January IIRC, would happen at all. My main hope is that the worst of this winter's wet and stormy weather is now behind us.


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
roger63
12 February 2016 08:48:46

Just looked at GEFS 0h run.


At 96h moist ens show some sort of Scandi HP.


By 144h still mostly in control but groupings emerge of ,with around 40% showing HP in good position ie further north


eg http://www.meteociel.fr/modeles/gefs_cartes.php?ech=144&code=6&mode=0&carte=0


By 192h roughly 50:50 split ,mild Atlantic v HP.


It would be nice to see stronger development of the well positioned Scandi HP's anfd that possibility cannot be ruled out.But as many have already posted so far this winter any Scandi HP has been squeezed out pretty quickly by the jet to the NW and the balance currently favours this happening yet again. 

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