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Hippydave
04 February 2015 19:38:26

Interesting ECM run (not over us, further North!)


Goes from this:



To this:-



Canadian PV lobe waning, nice intense Siberian lobe. Now all we need is for our resident HP to back West and North and we're away


The GFS ens also show a bit of scatter later on, with a big spread of 850 temps. The majority keep the 850's up, although not overly warm at the surface (down South anyway, not looked oop North).


I guess at least it'll be useable weather, hopefully not a fogfest as that's a bit iffy for commuting by bike.


Home: Tunbridge Wells
Work: Tonbridge
White Meadows
04 February 2015 20:02:57


Interesting ECM run (not over us, further North!)


Goes from this:



To this:-



Canadian PV lobe waning, nice intense Siberian lobe. Now all we need is for our resident HP to back West and North and we're away


The GFS ens also show a bit of scatter later on, with a big spread of 850 temps. The majority keep the 850's up, although not overly warm at the surface (down South anyway, not looked oop North).


I guess at least it'll beable weather, hopefully not a fogfest as that's a bit iffy for commuting by bike.


Originally Posted by: Hippydave 

 


really struggling to see the potential there to be honest.

sizzle
04 February 2015 20:24:31

buzz update is intresting, brian goes and say don't write of winter, there could be a sting in the tail.at the end of the update  does he see something ahead or is he just teasing us.

04 February 2015 20:32:02
We are currently on holiday in Kandersteg, Switzerland...masses of snow here at elevation..atleast 2 ft..we travelled here by train from Paris last Monday...conditions were very marginal for snow...none in Paris...near Dijon where it was more hilly, lots of snow but by time got to Basel, very little snow.. A little in Bern, but masses as soon as we got to Frutigen..so in this part of Europe, again, height seems key to getting snow!
White Meadows
04 February 2015 20:55:41


buzz update is intresting, brian goes and say don't write of winter, there could be a sting in the tail.at the end of the update  does he see something ahead or is he just teasing us.


Originally Posted by: sizzle 

pure speculation, most likely taken in context with the ec32 day update yesterday which reportedly shows extensive and intense blocking from Scandinavia extending to Iceland.


None of which will happen of course.

The Beast from the East
04 February 2015 21:17:00
I think BG is looking for a quote in the Express!
"We have some alternative facts for you"
Kelly-Ann Conway - special adviser to the President
Speedy
04 February 2015 21:41:12

I've been told and I quote;


"Winter is not over by a long chalk". 


No further explanation was given, although I insisted on more detail. 


I'll work on it though!


Frustrating!

Phil G
04 February 2015 22:37:51
A notable shift with HP being shown more NW this run. Just a few more tweaks.
http://www.wetterzentrale.de/pics/Rtavn2041.gif 
Gooner
04 February 2015 22:38:24


I've been told and I quote;


"Winter is not over by a long chalk". 


No further explanation was given, although I insisted on more detail. 


I'll work on it though!


Frustrating!


Originally Posted by: Speedy 


Pretty obvious really as its only February 4th Speedy


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Phil G
04 February 2015 22:43:11
HP now back in the same place as per the 12z
http://www.wetterzentrale.de/pics/Rtavn2281.gif 
Gooner
04 February 2015 22:45:59

HP now back in the same place as per the 12z
http://www.wetterzentrale.de/pics/Rtavn2281.gif

Originally Posted by: Phil G 


Dry , dry , dry and dry then


Listening to the 21:55 it sounds like its  a cloudy high also


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Quantum
04 February 2015 23:08:32


 


Dry , dry , dry and dry then


Listening to the 21:55 it sounds like its  a cloudy high also


Originally Posted by: Gooner 


Except we have an absolutely frigid arctic airmass next door. The -15C line actually scrapes with Shetland, this is the sort of potential I refered to a few days ago when this was more common on the ensembles. 


2023/2024 Snow days (approx 850hpa temp):
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)

Total: 8 days with snow/sleet falling.

2022/2023 Snow days (approx 850hpa temp):

18/12 (-1), 06/03 (-6), 08/03 (-8), 09/03 (-6), 10/03 (-8), 11/03 (-5), 14/03 (-6)

Total: 7 days with snow/sleet falling.

2021/2022 Snow days (approx 850hpa temp):

26/11 (-5), 27/11 (-7), 28/11 (-6), 02/12 (-6), 06/01 (-5), 07/01 (-6), 06/02 (-5), 19/02 (-5), 24/02 (-7), 30/03 (-7), 31/03 (-8), 01/04 (-8)
Total: 12 days with snow/sleet falling.
Quantum
04 February 2015 23:13:28

Anyway I like the trending on the GFS today, a small upgrade to be sure, but a few more of those and we are laughing!


NAVGEM reduces the height gradient for the W atlantic at 144hr, really starting to get interesting I think. 


2023/2024 Snow days (approx 850hpa temp):
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)

Total: 8 days with snow/sleet falling.

2022/2023 Snow days (approx 850hpa temp):

18/12 (-1), 06/03 (-6), 08/03 (-8), 09/03 (-6), 10/03 (-8), 11/03 (-5), 14/03 (-6)

Total: 7 days with snow/sleet falling.

2021/2022 Snow days (approx 850hpa temp):

26/11 (-5), 27/11 (-7), 28/11 (-6), 02/12 (-6), 06/01 (-5), 07/01 (-6), 06/02 (-5), 19/02 (-5), 24/02 (-7), 30/03 (-7), 31/03 (-8), 01/04 (-8)
Total: 12 days with snow/sleet falling.
nsrobins
04 February 2015 23:28:03


Anyway I like the trending on the GFS today, a small upgrade to be sure, but a few more of those and we are laughing!


NAVGEM reduces the height gradient for the W atlantic at 144hr, really starting to get interesting I think. 


Originally Posted by: Quantum 


You keep going for it, Q.
And if little happens as seems likely, at least we've been entertained (much like the Moaning Thread, which is great fun).

And back to ground zero, the hugely overwhelming concensus is a dry. cool. at times cloudy borefest well into next week.


Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
David M Porter
04 February 2015 23:30:17


pure speculation, most likely taken in context with the ec32 day update yesterday which reportedly shows extensive and intense blocking from Scandinavia extending to Iceland.


None of which will happen of course.


Originally Posted by: White Meadows 


Hmmm, could be a bit too early to be coming away with that last line methinks. Remember that a month ago, a number of people here were writing the whole of January off as a zonal fest and given the model output at the time, in a way that was understandable. But as we've seen in the last three weeks, things can change quickly. Not saying there will be changes again that favour another wintry spell, but it can't be discounted.


About this time 10 years ago a much respected contributor to this thread said "winter is over" based on poor model output, and in the space of a few days the models did a major U-Turn. It is unwise to second-guess the models IMO.


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
Quantum
04 February 2015 23:34:48


 


You keep going for it, Q.
And if little happens as seems likely, at least we've been entertained (much like the Moaning Thread, which is great fun).

And back to ground zero, the hugely overwhelming concensus is a dry. cool. at times cloudy borefest well into next week.


Originally Posted by: nsrobins 


Thing is though ns, the ensembles have been hinting at this kind of thing for nearly 5 days now, a few have managed to keep the HP far enough west to put the arctic in a freezing airmass (and it truly is ridiuclously cold). So ensemble profiles like this have been downright common.


GEFS Ensembles Chart


Most ensembles going for normal or above normal 850s, but with a handful of ridiculous runs. I've seen -17C in the odd one! Since this has been going on for so long it tells me that the situation is very finely balanced, that although the chance of a cold incursion is low, the shift needed to produce one is tiny. And if the chance at any given time is low (the pattern is really not changing for the next week) is it low for the integrated time? This makes me less sure. What happens if the OP picks one of those -15ers and runs with it, and given that there seems to be an almost endless window of opportunity for it to happen...


2023/2024 Snow days (approx 850hpa temp):
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)

Total: 8 days with snow/sleet falling.

2022/2023 Snow days (approx 850hpa temp):

18/12 (-1), 06/03 (-6), 08/03 (-8), 09/03 (-6), 10/03 (-8), 11/03 (-5), 14/03 (-6)

Total: 7 days with snow/sleet falling.

2021/2022 Snow days (approx 850hpa temp):

26/11 (-5), 27/11 (-7), 28/11 (-6), 02/12 (-6), 06/01 (-5), 07/01 (-6), 06/02 (-5), 19/02 (-5), 24/02 (-7), 30/03 (-7), 31/03 (-8), 01/04 (-8)
Total: 12 days with snow/sleet falling.
kmoorman
04 February 2015 23:51:26


 


Thing is though ns, the ensembles have been hinting at this kind of thing for nearly 5 days now, a few have managed to keep the HP far enough west to put the arctic in a freezing airmass (and it truly is ridiuclously cold). So ensemble profiles like this have been downright common.


GEFS Ensembles Chart


Most ensembles going for normal or above normal 850s, but with a handful of ridiculous runs. I've seen -17C in the odd one! Since this has been going on for so long it tells me that the situation is very finely balanced, that although the chance of a cold incursion is low, the shift needed to produce one is tiny. And if the chance at any given time is low (the pattern is really not changing for the next week) is it low for the integrated time? This makes me less sure. What happens if the OP picks one of those -15ers and runs with it, and given that there seems to be an almost endless window of opportunity for it to happen...


Originally Posted by: Quantum 


 


I really hope that your hunch pays off.


There is some (at last)  properly cold air available not that far away,  we just need the correct synoptics to tap into it. The relative calmness of the Atlantic must help,  as it only would take a slight lull in the northern arm of the jet to allow retrogession to Greenland and then anything is possible. 


 


That said,  the odds are still against it, at least for now.


 


Kieron 


Home: Durrington, Worthing, West Sussex. (16 ASL)
Work: Canary Wharf, London
Follow me on Twitter @kmoorman1968
tallyho_83
04 February 2015 23:53:56
New low pressure or 935mb heading towards Greenland:

http://www.wetterzentrale.de/pics/Rtavn1921.gif 



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


Arbroath 1320
05 February 2015 00:21:31

An interesting shift in the GEFS 12z Aberdeen ensembles tonight in FI. Many more colder runs than recently which suggests momentum is building for retrogression of the UK high North towards mid-Feb. Whether this happens, and if so, for how long is pure conjecture this far out of course. However, given the mundane model runs over recent days, some possible optimism for coldies at last. Trends are what matters though, so forthcoming ensemble runs won't be without interest.


GGTTH
nsrobins
05 February 2015 06:10:57

Q will of course keep finding chinks of light in the future synoptics - The Q Continuum - but what we see across the board at the moment is an overwhelming signal for a week at least of stubborn high pressure sat pretty much in the worst place (no cold easterly feed and no nice balmy southwesterly. Not my cup of tea, so I'm off until things change


Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
John p
05 February 2015 07:00:38
You might want to check the ECM this morning Neil!
Camberley, Surrey
Nordic Snowman
05 February 2015 07:13:16

You might want to check the ECM this morning Neil!

Originally Posted by: John p 


Haven't checked myself yet John - but will do once I have poured another coffee  Hoping things haven't gone t-up for me re: Saturday () and with a continued risk as shown on GFS regarding the end of next week and a renewed plunge 


Bjorli, Norway

Website 
Ally Pally Snowman
05 February 2015 07:15:25

Yes something is brewing could be the coldest spell of the winter starting around the 14th.


http://www.wetterzentrale.de/pics/Recm2162.html


Bishop's Stortford 85m ASL.
Arcus
05 February 2015 07:22:33


Yes something is brewing could be the coldest spell of the winter starting around the 14th.


http://www.wetterzentrale.de/pics/Recm2162.html


Originally Posted by: Ally Pally Snowman 


... or the warmest


http://www.wetterzentrale.de/pics/Rgem2402.gif


You pays yer money, you takes yer choice at that range. 


Ben,
Nr. Easingwold, North Yorkshire
30m asl
Nordic Snowman
05 February 2015 07:39:03


Yes something is brewing could be the coldest spell of the winter starting around the 14th.


http://www.wetterzentrale.de/pics/Recm2162.html


Originally Posted by: Ally Pally Snowman 


 



Bjorli, Norway

Website 

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