Gooner
27 January 2021 09:14:57

Originally Posted by: doctormog 


 


No, that would be high pressure north of the UK. High pressure over the north of the UK would at face value give anticyclonic conditions up here and some form of easterly over the south.



Then its got to be the narrowest of HP's if an Easterly wouldn't be across the Midlands at least ...............as I said we are just guessing anyway 


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


doctormog
27 January 2021 09:33:11

Originally Posted by: Gooner 


 


Then its got to be the narrowest of HP's if an Easterly wouldn't be across the Midlands at least ...............as I said we are just guessing anyway 



Something like this would do it:



 


Or this from the 06z ICON run for Saturday:



tallyho_83
27 January 2021 10:00:43

Originally Posted by: Gooner 


 


Does it ?


That's not how I read it yesterday 



Met O Update mentioned about a northerly spell and wintry outbreaks' - nothing about an easterly at all.


As for the ECM: - Nothing easterly about this:



 


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


tallyho_83
27 January 2021 10:03:28

Annoying how the GFS flip from cold to mild to warm to cool and to bitterly cold back to less cold every 6 hours:


Meanwhile the ENS still have some colder sub -10c uppers but so much scatter:



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


Robertski
27 January 2021 10:09:06

Originally Posted by: tallyho_83 


Annoying how the GFS flip from cold to mild to warm to cool and to bitterly cold back to less cold every 6 hours:


Meanwhile the ENS still have some colder sub -10c uppers but so much scatter:




That's a mess!

tallyho_83
27 January 2021 10:17:54

Originally Posted by: Robertski 


 


That's a mess!



I think we have to go by what the met office say "wintry outbreaks' - Met never mention about any return to prolonged mild weather. We just can't continue believing the models when they flip flop every 6 hours. As soon as you see an easterly on the GFS it get's washed away by the next run or get's pushed back, whilst another model shows an easterly and it's member run like control/para shows mild - and vice versa. It's frustrating. I don't think I have experienced a winter with such huge swings in the model output every 6 hours.


It's not even worth discussing unless there is some cross model agreement. Surely the Met are more accurate and have access to more data/computer models than we do. I mean we all know models can flip and there are set backs but this is the case every 6 hours isn't it? Or maybe we should just focus on the short to medium term models like GEM, ECM and Icon. GEM doesn't flip so wildly but at the same time , the time is ticking for us to get an easterly...?


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


Sevendust
27 January 2021 10:22:00

The proximity of southerly tracking lows and a lack of serious cold mean that the south will be under perpetual battleground synoptics for some time, with (mostly) a lot of rain. No proper easterly likely in the next ten days or so. Roll on Spring LOL


Further north, the scenario remains one of largely cold air so winter continues (away from Aberdeen) 

doctormog
27 January 2021 10:35:44

Originally Posted by: Sevendust 


The proximity of southerly tracking lows and a lack of serious cold mean that the south will be under perpetual battleground synoptics for some time, with (mostly) a lot of rain. No proper easterly likely in the next ten days or so. Roll on Spring LOL


Further north, the scenario remains one of largely cold air so winter continues (away from Aberdeen) 



You can off people really quickly you know 


(I'm not saying that you're wrong though! )


The 06z GFS op run so far epitomises what you are saying. Cool (up here) rather than cold with some "battleground" scenarios.


nsrobins
27 January 2021 10:37:39
I assume the GFSP is back on the table as the nations favourite model? πŸ˜‚πŸ˜‚
Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
ballamar
27 January 2021 10:43:19
Almost gets there on the Op run for a battleground rain to snow events
ballamar
27 January 2021 10:56:25
Another bizarre run, with a stationary low over the UK, not sinking and eventually bringing warmer 850’s into Scandi by the looks of it
Heavy Weather 2013
27 January 2021 10:57:55
Astonishing to think that GFSP, brings in an easterly in a 96hr timeframe.

Crazy. Let’s hope this is a start of a trend please.
Mark
Beckton, E London
Less than 500m from the end of London City Airport runway.
Heavy Weather 2013
27 January 2021 11:04:44

Sunday also is now becoming a serious ‘watch day’

There are a sufficient number of slider lows in the ensembles to suggest to me that this could be a good snow event for some.

Sunday now becoming the most critical day of the winter. If things go out way, I think it’s game on, if it doesn’t, more waiting required.


Mark
Beckton, E London
Less than 500m from the end of London City Airport runway.
ballamar
27 January 2021 11:05:06

Originally Posted by: Heavy Weather 2013 

Astonishing to think that GFSP, brings in an easterly in a 96hr timeframe.

Crazy. Let’s hope this is a start of a trend please.


 


Very plausible though, the weekend could spring a few surprises. As more observations of the true changes and readings the models will be flipping as we are not in a mobile pattern currently

fairweather
27 January 2021 11:06:13

People keep quoting the models "flip flopping" but that is because they still haven't learnt the lesson of relying on operational runs over a week out from current. They haven't been flip flopping at all if you only look at the ensembles! They have been consistent in showing total uncertainty in the mid to long term with a trend in the mean just drifting by a couple of degrees milder or cooler with each run. Currently the drift is towards milder, yesterday it was towards cooler but the level of uncertainty remains largely the same. The even spread of +8C to -12C pretty much tells the story. But, hey ho, people will  still grasp at whatever they want to happen.


S.Essex, 42m ASL
nsrobins
27 January 2021 11:49:15

There must be a degree of credence in the idea of an easterly as the GEFS keep throwing in easterly hybrids or even stonking classics of yesteryear (p19 or even p24 for potential).


The GEFS has a mean Scandy high at 240 and not for the first time 


Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
ballamar
27 January 2021 11:56:59
Looking through the ENS would say about 70% favour a colder more blocked scenario toward the further outreaches which is not bad for end of first week in Feb
Arbroath 1320
27 January 2021 11:57:38

Originally Posted by: tallyho_83 


Annoying how the GFS flip from cold to mild to warm to cool and to bitterly cold back to less cold every 6 hours:


Meanwhile the ENS still have some colder sub -10c uppers but so much scatter:




At 282t the majority of 6z ENS are showing a pressure rise to the NE. Here's the average at that point:


https://www.wetterzentrale.de/en/topkarten.php?map=1&model=gfs&var=1&time=282&run=6&lid=AVG&h=0&tr=6&mv=0


With so much volatility in the model runs for the medium to long term, it's really all about trends. There is clearly a trend in the ENS to a pressure build to the NE as we go through the 1st week in February. How that actually effects us in terms of the weather is open to question, although the potential for a potent cold spell is certainly there.


GGTTH
Robertski
27 January 2021 12:16:25

Originally Posted by: Arbroath 1320 


 


At 282t the majority of 6z ENS are showing a pressure rise to the NE. Here's the average at that point:


https://www.wetterzentrale.de/en/topkarten.php?map=1&model=gfs&var=1&time=282&run=6&lid=AVG&h=0&tr=6&mv=0


With so much volatility in the model runs for the medium to long term, it's really all about trends. There is clearly a trend in the ENS to a pressure build to the NE as we go through the 1st week in February. How that actually effects us in terms of the weather is open to question, although the potential for a potent cold spell is certainly there.



The POTENTIAL has been there most winter, the reality is  cool with outbreaks of snow sleet rain, and everything else tongue-out

Brian Gaze
27 January 2021 12:38:33

Still firmly in Murray Walker territory IMO.



Brian Gaze
Berkhamsted
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