Remove ads from site

Gooner
08 January 2016 16:59:54

I see it is BBQ time again on the GFS.

Can we finally give up on this model please. We only follow it because it has the most public runs a day and shows us the most. The differences between the last 4 runs at 60 hours have been ridiculous.

Originally Posted by: warrenb 


Agreed


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


SJV
08 January 2016 17:01:39

The only good thing, is the odious Nathan Rao is going to be wrong for the 4,000th time.

Originally Posted by: John p 


He was wrong the entire time. Cold spell or not, his sensationalist tripe of 'worst winter in 50 years' and countrywide blizzards was never supported because he gets his information from his f buddy James Madden 


 


It is far from curtains on this cold spell though 

warrenb
08 January 2016 17:02:20
You watch the ECM throw out a corker.JMA at +84 is lovely
Tim A
08 January 2016 17:02:49
UKMO is ok at t+144. But thats at 144, its almost certainly not going to be exactly like that. Concerningly in the more reliable 120 hrs we have sw winds. Looks a risky solution .
Tim
NW Leeds
187m asl

 My PWS 
Rob K
08 January 2016 17:02:55
Just to illustrate how much the GFS has swung on the NH profile, here is the chart for the same time-frame, the current T132 hour period, on the 12Z runs...

http://modeles.meteociel.fr/modeles/gfs/runs/2016010812/gfsnh-0-132.png?12?12 

http://modeles.meteociel.fr/modeles/gfs/runs/2016010712/gfsnh-0-156.png?12?12 

http://modeles.meteociel.fr/modeles/gfs/runs/2016010612/gfsnh-0-180.png?12?12 

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
picturesareme
08 January 2016 17:03:13

Just done some very brief research looking for a good omen...

The last time a subtropical system spawned in the middle of January in the Atlantic was back in 1978 😊 note key word 'spawned'

Apparently that winter kicked off pretty well mid January and lasted through into February.

Again this was just brief research... And just for fun 😋

Gooner
08 January 2016 17:04:13


Some VERY low temps out East


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


The Beast from the East
08 January 2016 17:04:45

So far it is (UKMO,GEM) 2-1 (GFS)

Bet in play or wait for the final result.

Originally Posted by: warrenb 


I would have thought UKMO would go the same way as GFS, the high seems to be retreating to Canada


I've already given this one up.


"We have some alternative facts for you"
Kelly-Ann Conway - special adviser to the President
kmoorman
08 January 2016 17:05:06

You watch the ECM throw out a corker.JMA at +84 is lovely

Originally Posted by: warrenb 


 


JMA is good.  We just need the low to concentrate on holding itself together a getting away SE sharpish.


Home: Durrington, Worthing, West Sussex. (16 ASL)
Work: Canary Wharf, London
Follow me on Twitter @kmoorman1968
Saint Snow
08 January 2016 17:06:39


I've already given this one up.


Originally Posted by: The Beast from the East 


 


I think you had even when the stellar output was churning




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
Gandalf The White
08 January 2016 17:06:51


GEM keeps it cold right the way out... always loved that model! http://modeles.meteociel.fr/modeles/gem/runs/2016010812/gem-0-234.png?12


 


Not sure about that 960mb Baltic bomb though...


Originally Posted by: Rob K 


Yes, the GEM evolution is interesting, particularly when you compare it and the UKMO one with GFS.


GEM develops a LP system in the upper mid-west and deepens it rapidly as it hits the ocean off the eastern seaboard - but then the energy hits the block and most of it is forced north with just a tiny part spinning south under the block.


The UKMO evolution is harder to read because of the 24 hour steps but attempts something not too dissimilar.


GFS, in marked contrast, doesn't generate any WAA from the LP exiting the eastern seaboard and thereafter there is nothing to stop the jetstream coming east.


So, as early as Day 5 to Day 6 there are significant differences in the handling of the block and the next bout of energy coming out of the US.  Until the modelling of that is tied down the subsequent evolution is up in the air.


ECM will be interesting..... again......


Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


Gooner
08 January 2016 17:08:02

You watch the ECM throw out a corker.JMA at +84 is lovely

Originally Posted by: warrenb 



Yep JMA is the model


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Gandalf The White
08 January 2016 17:09:46


 


I would have thought UKMO would go the same way as GFS, the high seems to be retreating to Canada


I've already given this one up.


Originally Posted by: The Beast from the East 


Between T+120 and T+144 the high over Greenland doesn't move on UKMO?



 



Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


Arbroath 1320
08 January 2016 17:10:02

I see it is BBQ time again on the GFS.

Can we finally give up on this model please. We only follow it because it has the most public runs a day and shows us the most. The differences between the last 4 runs at 60 hours have been ridiculous.

Originally Posted by: warrenb 


I agree to an extent although the volatility must be partly due to the fact that there are 4 runs per day. If ecm produced 4 a day we would likely see it chopping and changing more as well.


GGTTH
Gooner
08 January 2016 17:10:13


Just shows how things can change so much


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


The Beast from the East
08 January 2016 17:10:17

looks curtains on GFS control as well


http://modeles7.meteociel.fr/modeles/gens/runs/2016010812/gens-0-1-126.png


 


"We have some alternative facts for you"
Kelly-Ann Conway - special adviser to the President
Gandalf The White
08 January 2016 17:10:47


 



Yep JMA is the model


Originally Posted by: Gooner 



You fickle model watcher...........



Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


SJV
08 January 2016 17:11:02

Just to help those who aren't understanding the GFS inconsistent outputs, here is a sneak peek into the current technology behind this model...



eastcoaster
08 January 2016 17:11:06


 


I agree to an extent although the volatility must be partly due to the fact that there are 4 runs per day. If ecm produced 4 a day we would likely see it chopping and changing more as well.


Originally Posted by: Arbroath 1320 

although its fair to say GFS has been consistently shite for the last 3 runs.

Gandalf The White
08 January 2016 17:12:15


 


Just shows how things can change so much


Originally Posted by: Gooner 


For me it just shows how unreliable the GFS model can be.....


 


 


Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


SJV
08 January 2016 17:12:32


looks curtains on GFS control as well


http://modeles7.meteociel.fr/modeles/gens/runs/2016010812/gens-0-1-126.png


 


Originally Posted by: The Beast from the East 


You really trust a model that seems completely unable to handle the changing patterns at the moment? There are other models you know - GFS hasn't exactly covered itself in glory these past few days.


Or are you just adding some balance? 

warrenb
08 January 2016 17:12:54
Yes but it has been a different kind of excrement each time. Look at the total northern hemisphere pattern and it has churned out 4 completely different scenarios.
Gandalf The White
08 January 2016 17:13:17


Just to help those who aren't understanding the GFS inconsistent outputs, here is a sneak peek into the current technology behind this model...




Originally Posted by: SJV 


Would that be the current operational or the new parallel model?



Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


Fothergill
08 January 2016 17:14:23

Greeny heights much lower on 12z GEFS mean vs 06z at day 6


06z



12z



Looks like this one is slipping away..

picturesareme
08 January 2016 17:15:48


Just done some very brief research looking for a good omen...

The last time a subtropical system spawned in the middle of January in the Atlantic was back in 1978 😊 note key word 'spawned'

Apparently that winter kicked off pretty well mid January and lasted through into February.

Again this was just brief research... And just for fun 😋


Originally Posted by: picturesareme 


 


hmm seeing a slight pattern of increased tropical activity late December and into January coinciding with colder snowy periods here in the UK.

Remove ads from site

Ads