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marting
31 December 2019 23:36:45

GEFS full of potential tonight out in FI, about 5 or6 easterlies of interest out there. Permutation 20 would develope nicely.


Happy new year - fingers crossed 


Martin


Martin
Greasby, Wirral.
DEW
  • DEW
  • Advanced Member
01 January 2020 00:09:01

P18 from T+300 onward!


War does not determine who is right, only who is left - Bertrand Russell

Chichester 12m asl
JACKO4EVER
01 January 2020 00:34:24
GEFS new year straws to clutch to- deep FI of course. Dire
BJBlake
01 January 2020 01:17:57
Happy New Year...

P2,6,16 - 20 all spell potential, with this delivering a 40% chance of all Ps were equal, but the op and control are probably the poorest, so straw clutches R us...lets see what a new decade will bring to our chart gazings...got to be better than 2019!! Surely!!
Brecklands, South Norfolk 28m ASL
Russwirral
01 January 2020 08:15:44

Gfs goes from watm southwesterlies to direct westerly influence... with colder segments from time to time. So things look to cool off.

Nothing crazy on the cards


 


 


Oh... and happy new year, all the best for 2020


DEW
  • DEW
  • Advanced Member
01 January 2020 08:26:42

Happy New Year...

P2,6,16 - 20 all spell potential, with this delivering a 40% chance of all Ps were equal, but the op and control are probably the poorest, so straw clutches R us...lets see what a new decade will bring to our chart gazings...got to be better than 2019!! Surely!!

Originally Posted by: BJBlake 


The MetO forecast for here for the next week isn't a good omen - no sun whatever and daytime temps in a rut at 10+/- 2C. But over to the models proper ...


 


GFS op continues with HP around the UK with W or SW winds but there's a break on Fri 10th with  trough over the UK after which the HP resumes but less strongly so the westerlies come from a colder source. 


ECM just keeps the HP going


Jetstream mostly looping around until Mon 6th then mostly running across the UK to the 17th with a tendency to weaken as soon as it leaves us and run northwards across Norway. I don't know what this signifies - westerlies keeping Siberia warm or opening the door for mid European easterlies? More straw-clutching.


GEFS temps low around the 4th, higher around the 8th, then the mean drops back to the seasonal normal though both op and control have a period below normal around the 10th and above around the 14th. On the dry side, any rain mostly in the west. Just a few glimmers of hope for cherry picking from the postage stamps, but only far out in FI.


War does not determine who is right, only who is left - Bertrand Russell

Chichester 12m asl
BJBlake
01 January 2020 08:50:01
Yep - best on offer is that the old Status Quo with a more southerly track of the jet is resumed, and those teasing little Purtibations turn into a trend, but thus far, no sign of a 1947 late winter splendour developing thus far. However, a SSW event, the tables could still turn on their head.

Does anyone know when the QBO turns negative? This is another factor that could disrupt the dragon-like pulses of jet energy that are consigning this winter to the forgettable zonal conveyor belt file.


Brecklands, South Norfolk 28m ASL
Argyle77
01 January 2020 10:51:56

Long way to go yet winter is barely two weeks old.

Brutal 2nd half of winter and possibly spring could be coming up according to some  I have heard ,something to do with.CET previous and pattern matching,might bring this forum out of hibernation for a change.

Brian Gaze
01 January 2020 10:56:07

In the short term I see that during the last 24 hours GFS has tended to water down this weekend's "northerly blast".



Brian Gaze
Berkhamsted
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"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan
Retron
01 January 2020 11:00:40


Long way to go yet winter is barely two weeks old.


Originally Posted by: Argyle77 


It's over 4 weeks old according to the meterological definition (which, as this is a weather site, is the one most of us will be using).


Interesting to see the 6z GFS has a go at inflating a Scandinavian High at the end of the run. Oddly the 6z on Christmas Day did the same thing at the same time range, but it soon vanished in the 12z output. Wonder if this one will do the same...


 


Leysdown, north Kent
doctormog
01 January 2020 11:14:55


In the short term I see that during the last 24 hours GFS has tended to water down this weekend's "northerly blast".



Originally Posted by: Brian Gaze 


There was never a “northerly blast” forecast for the weekend, just the brief advection of cold associated with an area of low pressure to the north. It was touch and go if it would even affect here never mind further south in Scotland. What was a small snow risk for northernmost parts is now an even smaller risk. The new “improved” GFS seems to be even worse at overdoing the cold from northerlies than its predecessor. The other main models have not really changed from what they showed initially (t850s at or just below-5°C up here). 


Not so much a case of watering down as much as the GFS overstating a risk. 


jhall
01 January 2020 11:19:43


...Interesting to see the 6z GFS has a go at inflating a Scandinavian High at the end of the run. Oddly the 6z on Christmas Day did the same thing at the same time range, but it soon vanished in the 12z output. Wonder if this one will do the same...


 

Originally Posted by: Retron 


Though I myself am a great one for clutching at straws, I confess that I'm struggling to see much sign of a Scandi High on that 06Z operational run.


Cranleigh, Surrey
doctormog
01 January 2020 11:24:43


 


Though I myself am a great one for clutching at straws, I confess that I'm struggling to see much sign of a Scandi High on that 06Z operational run.


Originally Posted by: jhall 


https://www.wetterzentrale.de/maps/GFSOPSC06_336_1.png 


 


tallyho_83
01 January 2020 11:59:17


 


https://www.wetterzentrale.de/maps/GFSOPSC06_336_1.png 


 


Originally Posted by: doctormog 


That's nothing and it's so far north to have any influence and it's a long way out.


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


doctormog
01 January 2020 12:00:43


 


That's nothing and it's so far north to have any influence and it's a long way out.


Originally Posted by: tallyho_83 


Nobody suggested otherwise, I was answering a question. 


ballamar
01 January 2020 12:09:50


 


That's nothing and it's so far north to have any influence and it's a long way out.


Originally Posted by: tallyho_83 


not all Scandi highs influence directly but it is one

Rob K
01 January 2020 12:13:14
GFS generates a big LP out of nowhere across the south towards the end of next week. ECM at the same time has HP in control over the UK so I have to assume it's just GFS noise!

http://modeles.meteociel.fr/modeles/gfs/runs/2020010106/gfs-0-210.png?6 

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
idj20
01 January 2020 12:31:17

GFS generates a big LP out of nowhere across the south towards the end of next week. ECM at the same time has HP in control over the UK so I have to assume it's just GFS noise!

http://modeles.meteociel.fr/modeles/gfs/runs/2020010106/gfs-0-210.png?6

Originally Posted by: Rob K 



And the sad thing is given the nature of our maritime-type climate, the GFS's current take on things is the one that has a better chance of bearing fruit than ECM's. 

Seems that after a calm benign 1st week of January, the 2nd week is likely to be picking up where November and December left off by being more typically unsettled and windy. Anything beyond that is anyone's guess, really.


Folkestone Harbour. 
Argyle77
01 January 2020 12:32:12


 


It's over 4 weeks old according to the meterological definition (which, as this is a weather site, is the one most of us will be using).


Interesting to see the 6z GFS has a go at inflating a Scandinavian High at the end of the run. Oddly the 6z on Christmas Day did the same thing at the same time range, but it soon vanished in the 12z output. Wonder if this one will do the same...


 


Originally Posted by: Retron 


Well we have till late March to see falling and lying snow,here,sometimes early April.so loads of time left.march 1891 and late march 1952 are good examples of what still can happen.


Your location had sub zero maxes in march 2018 ,which is weeks away.


Should see some signs fairly soon of this big change to a bitter 2nd half of winter in the models,if these predictions are close to being correct.

fairweather
01 January 2020 13:12:36


Long way to go yet winter is barely two weeks old.

Originally Posted by: Argyle77 


This could be the least "winter is over post of all time"!?? 31 days is 4 weeks and 3 days. Optimistic to say the least! 31/91 = is just over a third of the winter gone. Who are the "some" predicting a "brutal" late winter and Spring? The Express? But yes, a long way to go, although with the next two weeks not look promising in the South that will be over half of the winter. On a positive note March is always more likely to bring snow here than November though.


S.Essex, 42m ASL
Gandalf The White
01 January 2020 13:34:51
A few 'interesting' blocked evolutions in the latter part of the runs in the 06z ensembles.

#3 establishes a modest block over the Greenland area and the jet is heading on a more southerly track

#7 retrogresses the high to the Iceland area

#16 throws up two dollops of WAA and creates a monster block over Scandi

Other than that there are many variations on a theme of the jetstream dominating.
Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


Gooner
01 January 2020 14:32:45

Still not a lot to grab on to at the moment , I've tried to take a break from model watching but still cant resist , was hoping low solar and Easterly QBO could influence but nothing as yet .


 


Time will tell , got many weeks left yet .


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


tallyho_83
01 January 2020 14:40:37


Still not a lot to grab on to at the moment , I've tried to take a break from model watching but still cant resist , was hoping low solar and Easterly QBO could influence but nothing as yet .


 


Time will tell , got many weeks left yet .


Originally Posted by: Gooner 


 


Yes I was going to say? Just why are we not getting any northerlies or easterlies? - So it clearly isn't anything to do with the transitioning to an QBO and at least we know that Solar Minimum winters can still be exceptionally zonal and /or mild.So my guess is that there is a huge ridge in the NE Pacific and of course the warm SST's in the Atlantic which is to blame as well in combination of exceptionally cold stratospheric temperatures? What do you think??


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


Gooner
01 January 2020 15:35:49

Well Gav went for a slightly colder than average winter with Dec and Feb being the coldest ? looks a bust then …………….no negativity towards Gav if anyone knows his stuff he certainly does , just goes to show how hard it is to get a handle of a UK winter 


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


White Meadows
01 January 2020 15:49:19


Well Gav went for a slightly colder than average winter with Dec and Feb being the coldest ? looks a bust then …………….no negativity towards Gav if anyone knows his stuff he certainly does , just goes to show how hard it is to get a handle of a UK winter 


Originally Posted by: Gooner 

That’s right Gooner, a guessing game at the end of the day. Seasonal forecasting continues to prove pretty much useless. The Met office may as well relaunch their public 3 monthly outlooks and stick to the mild and wet theme every year. It would be just as worthwhile.
speaking of accuracy, it seems the model output has been no less accurate over the Christmas period, much to the surprise of some:


https://www.emc.ncep.noaa.gov/gmb/STATS/html/new_acz6.html

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