The Weather Outlook

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NickR
  • NickR
  • Advanced Member Topic Starter
05 February 2014 07:58:07

"The man who has time to keep a private diary has never understood the immensity of the universe." (Renan)

What about the man (or woman) who has time to spend hours every day on TWO?

Answers on a postcard...

 

Usual rules.

 


Nick

Durham

[email protected]

Maunder Minimum
05 February 2014 08:12:17

Too soggy for postcards at the moment.

North Atlantic negative SST anomalies growing in extent - no surprise there - but just look at the depth of the anomaly off Nova Scotia:

http://www.ospo.noaa.gov/data/sst/anomaly/2014/anomnight.2.3.2014.gif

My only surprise is that the Baffin Sea is not colder than shown, given the persistent northerlies there this winter.

 


New world order coming.
Osprey
05 February 2014 08:17:10

Th only break I can see is around the 18th Feb CFS http://modeles.meteociel.fr/modeles/cfs/run1m/cfs-0-336.png?18 for a short while until the westerlies come back again


Nobody likes a smartass, especially another smartass...

If it ain't broke, don't fix it!

GIBBY
05 February 2014 08:40:56

Good morning. Here is today's report on the midnight outputs issued by the NWP for today Wednesday February 5th 2014 and copied across from my website at http://www.norton-radstockweather.co.uk/Model-Analysis(2859336).htm

All models show an intense depression near Southern Ireland moving slowly North through today and slowly filling later. Severe Westerly gales are shown wrapped around the Southern flank of the Low with damage and disruption in places as heavy rain then showers continue. Conditions ease tonight and tomorrow before a new Low centre moves up towards Southern Britain with more heavy rain later in the day while the North stay showery. Then as that system moves away NE on Friday a new Low approaches Southern Ireland late in the day with renewed gales and heavy rain for many into the start of the weekend reverting to westerly gales and showers on Sunday as the Low moves up towards Scotland.

GFS then shows very unsettled weather lasting throughout next week as pressure remains very Low over the UK. As shown today the operational run does indicate rather lighter winds which would remove one disruptive part of the weather but heavy rain will continue to be a feature at time through the week. Then in the far reaches of the run the weather remains unsettled with spell of rain and showers mixed with some drier and brighter periods developing in temperatures somewhat lower at times.

The GFS Ensembles remain disturbing with no let up shown in the Atlantic pattern as Low pressure system after system rattle into and over the UK from the West with spells of rain and showers nationwide in temperatures almost totally indicated as close to the long term mean.

UKMO shows next Tuesday as totally Low pressure dominated with individual centres all over the UK and the North Atlantic with further rain and showers at times with some snow possible over the hills at times as temperatures fall somewhat.

GEM is also very unsettled looking with Low pressure in total domination too from this model with spells of rain and showers rattling on from the West next week keeping all the disruptive issues currently present possible again then.

NAVGEM is not available this morning.

ECM today shows Low pressure well in control again next week with further spells of rain and squally showers in strong West and SW winds and temperatures close to average. Again this morning the Day 10 frame while still looking very unsettled hints at something a little drier arriving from the West albeit probably briefly as a ridge of High pressure moves across the UK in the days that follow the term of the run.

The ECM 9 and 10 Day mean Charts indicate to me that the likelihood for the weather in 9 and 10 Days time will show only modest changes with the high chance that we will remain influenced by Low pressure just to or close to Northern Britain with wet and windy weather continuing at times.

http://www.wetterzentrale.de/pics/Reem2161.gif
http://www.wetterzentrale.de/pics/Reem2401.gif 

The Jet Stream Forecast maintains a strong and relentless flow running East over the Atlantic on a collision course with France continuing to spawn large storm systems over and close to the UK. Any changes late in the run point towards a slow weakening and buckling of the flow but these are small scale hints and very distant.

In Summary today the weather remains in a very unsettled state with further spells of rain and wind for all, especially over the next week. there are modest signs of something a little quieter in Week 2 but rain will still never be far away with flooding issues still a problem for many. Temperatures remain no problem given the time of year with little frost and ice though the incidence of snowfall could increase somewhat over the hills with time.


Martin G

Kilmersdon Radstock Bath Somerset

Look up my New Facebook Weather Page  for all the latest up to the minute weather stories as they happen
roger63
05 February 2014 08:47:00

A key question.What is the anomalous  atmospheric feature which is driving the Atlantic storminess?

The cold over the east sid eof the USA has been mentioned in relation  to the intense cyclogenesis off the Atlantic coast.

But taking a further step back what has contributed to the intense cold over the Eastern USA and  Canada?

 

Osprey
05 February 2014 08:57:51

A key question.What is the anomalous  atmospheric feature which is driving the Atlantic storminess?

The cold over the east sid eof the USA has been mentioned in relation  to the intense cyclogenesis off the Atlantic coast.

But taking a further step back what has contributed to the intense cold over the Eastern USA and  Canada?

 

Originally Posted by: roger63 

Did you see Horizon last night? About solar storms and sunspots and how it thickens and heats up the our atmosphere to the north placing a drag on satellites bringing them down (Might have got some of that wrong partly listening with one ear and busy on something else)

Just a thought if this could affect or has affected the weather


Nobody likes a smartass, especially another smartass...

If it ain't broke, don't fix it!

Lionel Hutz
05 February 2014 08:57:57

A key question.What is the anomalous  atmospheric feature which is driving the Atlantic storminess?

The cold over the east sid eof the USA has been mentioned in relation  to the intense cyclogenesis off the Atlantic coast.

But taking a further step back what has contributed to the intense cold over the Eastern USA and  Canada?

 

Originally Posted by: roger63 

I may be wrong, but we do seem to have had a number of severe Northern Hemisphere cold outbreaks over the past few winters. I recall that some people were linking these outbreaks to the reduction in polar sea-ice. These cold breaks hit us in '09/'10 and again in '10/'11. This winter's cold could be seen as another episode of the same, just affecting North America this time instead of Europe.

On the other hand, it could be natural variability. Presumably, there's a strong chance that somewhere in the Northern Hemisphere will be hit by severe cold outbreaks most winters. 

 


Lionel Hutz

Nr.Waterford , S E Ireland

68m ASL



soperman
05 February 2014 09:24:10

"The man who has time to keep a private diary has never understood the immensity of the universe." (Renan)

What about the man (or woman) who has time to spend hours every day on TWO?

Answers on a postcard...

 

Usual rules.

 

Originally Posted by: NickR 

 

What about the man (or woman) who has time to spend hours every day on TWO?...................................should have moved North east.


Happily living by the sea in Brixham......but sad to leave the snowy Chiltern Hills after 35 years!
ARTzeman
05 February 2014 09:35:00

No To Post Cards.. Stamps TWO expensive....Can post more  groans about Isobars being close together with the thickness of DAM not being the One's we require and looking for in the Output Models...




Some people walk in the rain.

Others just get wet.

I Just Blow my horn or trumpet

ARTzeman
05 February 2014 09:38:26

Thank you Martin for your Output.......Of Gales for the  weekend.....




Some people walk in the rain.

Others just get wet.

I Just Blow my horn or trumpet

The Beast from the East
05 February 2014 10:04:57

The channel runner could be especially nasty. A lot of warm air wrapped up in it which is causing it to bomb

http://www.wetterzentrale.de/pics/Rtavn1081.png

Hopefully it will miss the south coast


Purley, Surrey, 70m ASL

"We have some alternative facts for you"

Kelly-Ann Conway - former special adviser to the President

The Beast from the East
05 February 2014 10:08:52

 

From Maunder in the old thread:

"What have the British Isles ever done to the weather gods to deserve such an unrelenting awfulness? Perhaps we need to make some sacrifices to the Atlantic sea god - throwing a hundred goats off Lands End might help! (That is what our Neolithic ancestors might have done anyway)."

 Throwing Owen Patterson off Lands End would be a better option!

 


Purley, Surrey, 70m ASL

"We have some alternative facts for you"

Kelly-Ann Conway - former special adviser to the President

The Beast from the East
05 February 2014 10:10:12

http://www.wetterzentrale.de/pics/Rtavn1201.png

Thankfully the Frogs get this one


Purley, Surrey, 70m ASL

"We have some alternative facts for you"

Kelly-Ann Conway - former special adviser to the President

Polar Low
05 February 2014 10:17:52

Not all of it heavy Rain  and sleety mix Southern England

http://www.meteociel.fr/modeles/gfse_cartes.php?&ech=120&mode=2

 

 

http://www.wetterzentrale.de/pics/Rtavn1201.png

Thankfully the Frogs get this one

Originally Posted by: The Beast from the East 

idj20
05 February 2014 10:31:15

Not all of it heavy Rain  and sleety mix Southern England

http://www.meteociel.fr/modeles/gfse_cartes.php?&ech=120&mode=2

 

 

http://www.wetterzentrale.de/pics/Rtavn1201.png

Thankfully the Frogs get this one

Originally Posted by: Polar Low 

Originally Posted by: The Beast from the East 



I'd bet the farm that will get progged to be further north in subsequent runs.


Home location: Folkestone Harbour.
Gooner
05 February 2014 10:40:52

http://www.wetterzentrale.de/pics/Rtavn1201.png

Thankfully the Frogs get this one

Originally Posted by: The Beast from the East 

http://www.wetterzentrale.de/pics/Rtavn1264.png

still catch some from it though


Remember anything after T120 is really Just For Fun



Marcus

Banbury

North Oxfordshire

378 feet A S L



05 February 2014 11:34:41

A key question.What is the anomalous atmospheric feature which is driving the Atlantic storminess?

The cold over the east sid eof the USA has been mentioned in relation to the intense cyclogenesis off the Atlantic coast.

But taking a further step back what has contributed to the intense cold over the Eastern USA and Canada?

Originally Posted by: Osprey 

Did you see Horizon last night? About solar storms and sunspots and how it thickens and heats up the our atmosphere to the north placing a drag on satellites bringing them down (Might have got some of that wrong partly listening with one ear and busy on something else)

Just a thought if this could affect or has affected the weather

Originally Posted by: roger63 

Yes, and the worrying element is that they are regularly heating the atmosphere to investigate the sunspots and CME's effect on the high atmosphere where alot of satellite's operate from..... eek!

Could that be effecting the weather, is their any way to prove/disprove that theory?

VSC

Russwirral
05 February 2014 11:50:55

http://www.wetterzentrale.de/pics/Rtavn1201.png

Thankfully the Frogs get this one

Originally Posted by: Gooner 

http://www.wetterzentrale.de/pics/Rtavn1264.png

still catch some from it though

Originally Posted by: The Beast from the East 

 

If that nudges enough north and no more, we could see a substantial snow event across central england.


Quantum
05 February 2014 12:36:10

Still definate signs of cyclosis in the long term on all the models, we have low latitude lows, sausage shaped lows, and eliptical shaped lows; quite different from circular occluded lows moving relentelessly NE. Also some signs of WAA in canada aswell.

I would be willing to do a friendly wager about a pattern change (i.e betting personal honour only :P) that a pattern change will be in evidence by mid month, and blocked (be it southern or northern) conditions be there by at the 20th at the absolute latest.   


25/26 (850hpa temp) 11 days snow/sleet falling

18/11 (-4) 19/11 (-6) 20/11 (-6) 01/01 (-7) 04/01 (-10) 10/01 (-7) 11/01 (-3) 30/01 (-1) 13/02 (-6) 15/02 (-4) 18/02 (-6)

24/25 10d

18/11 (-6) 19/11 (-6) 23/11 (-2) 22/12 (-5) 04/01 (-5) 05/01 (0)14/02 (0) 15/02 (0)12/03 (-6) 13/03 (-6)

23/24 8d

29/11 (-6) 30/11 (-6) 02/12 (-5) 03/12 (-5) 04/12 (-3) 16/01 (-3) 18/01 (-8)08/02 (-5)

22/23 7d

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

21/22 12d

Osprey
05 February 2014 13:02:00

Still definate signs of cyclosis in the long term on all the models, we have low latitude lows, sausage shaped lows, and eliptical shaped lows; quite different from circular occluded lows moving relentelessly NE. Also some signs of WAA in canada aswell.

I would be willing to do a friendly wager about a pattern change (i.e betting personal honour only :P) that a pattern change will be in evidence by mid month, and blocked (be it southern or northern) conditions be there by at the 20th at the absolute latest.   

Originally Posted by: Quantum 

Following CFS model around the 18th, you're betting it won't revert back to westerlies and the same old grind? I won't bet but hope you're right for a change in pattern for once


Nobody likes a smartass, especially another smartass...

If it ain't broke, don't fix it!

Gooner
05 February 2014 13:05:23

http://www.wetterzentrale.de/pics/Rtavn1201.png

Thankfully the Frogs get this one

Originally Posted by: Russwirral 

http://www.wetterzentrale.de/pics/Rtavn1264.png

still catch some from it though

Originally Posted by: Gooner 

 

If that nudges enough north and no more, we could see a substantial snow event across central england.

Originally Posted by: The Beast from the East 

http://expert-images.weatheronline.co.uk/daten/proficharts/en/2014/02/05/basis06/ukuk/rart/14021012_2_0506.gif

JFF Not a million miles from getting something

 


Remember anything after T120 is really Just For Fun



Marcus

Banbury

North Oxfordshire

378 feet A S L



RobN
  • RobN
  • Advanced Member
05 February 2014 13:20:32

Still definate signs of cyclosis in the long term on all the models, we have low latitude lows, sausage shaped lows, and eliptical shaped lows; quite different from circular occluded lows moving relentelessly NE. Also some signs of WAA in canada aswell.

I would be willing to do a friendly wager about a pattern change (i.e betting personal honour only :P) that a pattern change will be in evidence by mid month, and blocked (be it southern or northern) conditions be there by at the 20th at the absolute latest.   

Originally Posted by: Quantum 

If the cold lifts out of NE Canada and the jet loses energy as projected in the model long view, then a pattern change is possible. Whether it will save the UK winter from complete ignominy is moot.  No sign of it in the ens yet. I'm less optimistic than yesterday.


Rob

In the flatlands of South Cambridgeshire 15m ASL.

Quantum
05 February 2014 13:22:34

Still definate signs of cyclosis in the long term on all the models, we have low latitude lows, sausage shaped lows, and eliptical shaped lows; quite different from circular occluded lows moving relentelessly NE. Also some signs of WAA in canada aswell.

I would be willing to do a friendly wager about a pattern change (i.e betting personal honour only :P) that a pattern change will be in evidence by mid month, and blocked (be it southern or northern) conditions be there by at the 20th at the absolute latest.   

Originally Posted by: Osprey 

Following CFS model around the 18th, you're betting it won't revert back to westerlies and the same old grind? I won't bet but hope you're right for a change in pattern for once

Originally Posted by: Quantum 

Yeh indeed. Of course there is no guarantee I will be right, but I would go as far as to say there is a greater than 50% chance imo. Mostly my reasoning is this:

- Continued favourible conditions in the arctic, Neutral or negative AO and northern blocking been in place since Early january; no sign of letup.

- Signs of cyclosis in the atlantic, in particular the non- circular shaped lows; southerly tracks e.c.t.

- Stratospheric warming event in exactly the right place, admiatadely not propagating well, though evidence of a near vortex split even at 30hpa. Some weaker evidence of at least some propagation into the troposphere  

- Evidence of WAA in Canada at times, not 552 isopleth to greenland admitadely, but certainly above average 850s becoming more prominent, and cold pools becoming less prominent.

- Natural singularities suggest blocked conditions end of february perhaps more likely than at any other time during winter

- Sea ice expansion in Canada and low SSTS (tripole evident) acting as a negative feedback to cyclogenesis from canada, something that should become more important than a cold airmass over canada as the sun gets stronger. 

 


25/26 (850hpa temp) 11 days snow/sleet falling

18/11 (-4) 19/11 (-6) 20/11 (-6) 01/01 (-7) 04/01 (-10) 10/01 (-7) 11/01 (-3) 30/01 (-1) 13/02 (-6) 15/02 (-4) 18/02 (-6)

24/25 10d

18/11 (-6) 19/11 (-6) 23/11 (-2) 22/12 (-5) 04/01 (-5) 05/01 (0)14/02 (0) 15/02 (0)12/03 (-6) 13/03 (-6)

23/24 8d

29/11 (-6) 30/11 (-6) 02/12 (-5) 03/12 (-5) 04/12 (-3) 16/01 (-3) 18/01 (-8)08/02 (-5)

22/23 7d

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

21/22 12d

Gooner
05 February 2014 13:27:54

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