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soperman
27 January 2015 17:27:29

GFS may be showing the mesoscale feature picked by by IF in the EC ENS stamps Monday night into Tuesday.  This appears to show more organised precipitation which would fall as snow to almost all the UK. Too far out to hang your hat on it.


In summary increasingly cold this week with more/most of any snowfall in the North and West


The South and East may do better into next week.


What is good is that the blowtorch in FI stays in FI at the moment and the UKMO is encouraging for prolonging the cold.


 

RobN
  • RobN
  • Advanced Member
27 January 2015 17:31:40


 


Not when combined with this precip chart it ain't!


 


http://www.theweatheroutlook.com/charts/gfs/12_135_precipratec.png?cb=680


Originally Posted by: Rob K 


Is that a classic Pembrokeshire Dangler I see in that chart? 


Rob
In the flatlands of South Cambridgeshire 15m ASL.
sizzle
27 January 2015 17:54:06

a positive post by murr over on NW -------Ive just revisited the thread - why is everyone suicidal- its looking very good, initial flurries tomorrow night then potentially the main event for the weekend-!

sizzle
27 January 2015 17:57:00

and a few intresting  fergie post from NW ------


 We are using UKV now for the higher-res PPN phase forecasting / accumulating snow likelihoods.


 


Thursday early hrs/ early AM is particularly interesting, given the continued modelling of a small-scale cold front moving south through W Midlands/Bristol Channel. Theta-W fields show this well. We suspect this could yield more organised prospect of snow showers for some districts of W Country/central-S England early Thurs but await further runs before committing to the notion with deterministic confidence.


Mendips and environs to E of there is the only part of W Country where a snow accumulation signal of any note has persisted through various recent runs of all more consistent modelling (ECMWF, UKMO-GM, E4, UKV....). Other areas yes, but Mendips has been a focus. Unsurprising given flow direction

Charmhills
27 January 2015 18:00:45

Euro 4 model shows some heavy snow showers getting into the Midlands at times on Thursday.


Loughborough, EM.

Knowledge is power, ignorance is weakness.

Duane.
Rob K
27 January 2015 18:04:17


 


Is that a classic Pembrokeshire Dangler I see in that chart? 


Originally Posted by: RobN 


Yep. I may actually be going in the right direction this weekend as I will be in a fairly elevated part of North Devon.


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
sizzle
27 January 2015 18:15:14

I hope MODS/ADMINS don't mind.   here Is another murr post from NW ---


 


Wow - UKMO 144-!!!!!!!


 


Where did the EPO- ridge appear from !!!!!! Surprised no one has noticed-


 


UKMO !


Attached File  UKMO144JAN.gif   182.91KB   0 downloads


 


GFS


Attached File  Gfs144Jan.jpg   397.78KB   0 downloads


 


The UKMO would certainly slow the eastward progression down due to the 2 wave pattern being progged.- the UKMO is the best run thus far-


 

sizzle
27 January 2015 18:18:25

 one from fergie,


We are working on any E4 accumulations showing from Midlands S'ward as overdone by about a factor of x2. Uncertainty on spatial distribution but signal for some accumulations in parts of the south, especially by/through Thurs AM, remains ok (via smallscale cold front-type feature I described earlier).  Might warrant a minor impacts ice/snow advisory but that decision won;t be made until tomorrow AM.


 

Retron
27 January 2015 18:20:42
A blue bar!

http://www.wetterzentrale.de/pics/MS_London_avn.png 

When those start to appear it's a good sign if it's snow you're after...
Leysdown, north Kent
Russwirral
27 January 2015 18:20:52

I havent seen sat24.com give a snow forecast like this before:


 



bledur
27 January 2015 18:36:15

Is this Steve Murr you refer to a qualified Meteoroligist?

doctormog
27 January 2015 18:37:13


I havent seen sat24.com give a snow forecast like this before:


 



Originally Posted by: Russwirral 


Looks about right LOL. A snowy NWly for NW parts and across the far north of England - dry in NE Scotland. Then a cool but not cold enough northerly with precipitation followed by a colder but drier northerly and then high pressure. Still, at least it looks seasonal and some people will have snow.


kmoorman
27 January 2015 18:43:07
So, following on with discussion of the accuracy of the GFS snow percentage figures, the latest ensemble for Worthing now shows 95%, 45%, 80%, 90%, 90% from late Wednesday through to late Thursday. Are they miles out, because there's no mention in the forecasters?
Home: Durrington, Worthing, West Sussex. (16 ASL)
Work: Canary Wharf, London
Follow me on Twitter @kmoorman1968
Matty H
27 January 2015 18:43:48


 one from fergie,


We are working on any E4 accumulations showing from Midlands S'ward as overdone by about a factor of x2. Uncertainty on spatial distribution but signal for some accumulations in parts of the south, especially by/through Thurs AM, remains ok (via smallscale cold front-type feature I described earlier).  Might warrant a minor impacts ice/snow advisory but that decision won;t be made until tomorrow AM.


 


Originally Posted by: sizzle 


Thrilling.


Hopefully better things to come later in the weekend for southerners


kmoorman
27 January 2015 18:44:21
So, following on with discussion of the accuracy of the GFS snow percentage figures, the latest ensemble for Worthing now shows 95%, 45%, 80%, 90%, 90% from late Wednesday through to late Thursday. Are they miles out, because there's no mention in the forecasters?
Home: Durrington, Worthing, West Sussex. (16 ASL)
Work: Canary Wharf, London
Follow me on Twitter @kmoorman1968
Matty H
27 January 2015 18:44:43

So, following on with discussion of the accuracy of the GFS snow percentage figures, the latest ensemble for Worthing now shows 95%, 45%, 80%, 90%, 90% from late Wednesday through to late Thursday. Are they miles out, because there's no mention in the forecasters?

Originally Posted by: kmoorman 


Do you have a link to these charts please?


Jonesy
27 January 2015 18:46:59


 


Do you have a link to these charts please?


Originally Posted by: Matty H 


Not worthing but London has 100% LOL


Diagramme GEFS


Medway Towns (Kent)
The Weather will do what it wants, when it wants, no matter what data is thrown at it !
doctormog
27 January 2015 18:47:44


 


Do you have a link to these charts please?


Originally Posted by: Matty H 


I think it is this type of chart, just change the latitude and longitude in the address:


http://www.meteociel.fr/cartes_obs/gens_display.php?ext=1&lat=57.2&lon=-2.3


nsrobins
27 January 2015 18:48:10
Fascinating ECM thus far. The change low due Weds quickly shuffled across the North and more ridging develops behind. Different to the 00z.
Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Rob K
27 January 2015 19:00:53
http://meteociel.fr/modeles/ecmwf/runs/2015012712/ECM1-240.GIF?27-0 
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
Matty H
27 January 2015 19:04:46

Thanks 


The Beast from the East
27 January 2015 19:26:20

Another option from ECM. Anything could happen post day 7. Even Brian's taste of Spring.


 Shannon is a busy girl tonight


 


"We have some alternative facts for you"
Kelly-Ann Conway - special adviser to the President
The Beast from the East
27 January 2015 19:28:01


 one from fergie,


We are working on any E4 accumulations showing from Midlands S'ward as overdone by about a factor of x2. Uncertainty on spatial distribution but signal for some accumulations in parts of the south, especially by/through Thurs AM, remains ok (via smallscale cold front-type feature I described earlier).  Might warrant a minor impacts ice/snow advisory but that decision won;t be made until tomorrow AM.


 


Originally Posted by: sizzle 


Translation - might snow a little


"We have some alternative facts for you"
Kelly-Ann Conway - special adviser to the President
Jim_AFCB
27 January 2015 19:32:30


Is this Steve Murr you refer to a qualified Meteoroligist?


Originally Posted by: bledur 


 


I don't believe so.. he is a renowned cold ramper though!


Jim, Bournemouth, Dorset. Home of the mighty Cherries
Bournemouth Weather Onine - Click here. 
rugzee
27 January 2015 19:33:50

Hi all,


 


i'm a complete newbie to this forum, but have enjoyed the website for many years. its fascinating watching the models, and 'learning' that anything beyond 5-7 days is in the lap of the gods. we are located in a rural area in North county Cork, in ROI. The last time(10 days ago approx) that this upcoming set up transpired, it delivered 10 cms of snow locally, with school closures etc. Our Met service here, has warned of widespread snowfall ( http://www.met.ie/nationalwarnings/default.asp) , from showers mainly. cannot wait! keep the posts comin guys, love all the differing views and opinions.

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