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Brian Gaze
06 November 2020 16:07:40

On the GEFS data tables I've not added a percentage breakdown of the runs to show how many fall into each group for a given forecast variable (e.g. 2m max temps, MSLP etc). It is automatically displayed below the main table.


 


https://www.theweatheroutlook.com/premium/gefs-tables.aspx


 


 


 




Brian Gaze
Berkhamsted
TWO Buzz - get the latest news and views 
"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan
Gandalf The White
06 November 2020 18:22:09


On the GEFS data tables I've not added a percentage breakdown of the runs to show how many fall into each group for a given forecast variable (e.g. 2m max temps, MSLP etc). It is automatically displayed below the main table.


 


https://www.theweatheroutlook.com/premium/gefs-tables.aspx


 


 


 




Originally Posted by: Brian Gaze 


Very good, Brian.


Can't blame you for what it shows.....


😉


Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


White Meadows
06 November 2020 18:45:55
Met long ranger gives straws to clutch to in about a months time...

“ possibly turning colder than average into December with risks of overnight frosts. The chance of wintery precipitation could also be increasing into December, notably for northern higher ground.”
tallyho_83
06 November 2020 19:16:29


 


I agree it is somewhat bleak and depressing isn't it!?


Exeter reached -1c last night with a frost - I guess this could be the coldest night time min temp for the rest of the month..!?


We are coming out of solar minimum and should now have greater chances of a colder winter, we should be in an easterly QBO as well and a weak La Nina not a super strong La Nina, The IOD should go negative this winter NOT positive - the NE pacific SST's should cool down NOT warm up! Temperatures at 10hpa as well as 30hpa are colder than average as always which will help power up the PV and increase strength of zonal winds as is evident!? Everything is going against the chances of a cold winter sadly. Again! 


Seasonal festive events cancelled including outdoor ones. - Very sad!! Where do we go from here!?


 


 


Originally Posted by: tallyho_83 


Actually at the top levels of stratosphere it's very easterly, but will this infiltrate down into lower levels of the stratosphere at 30hpa? - Maybe, just maybe it could!?


 



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


DEW
  • DEW
  • Advanced Member
07 November 2020 07:00:36

GFS: broad HP settling over C/E Europe 1025 mb Mon 9th while UK plagued by shallow LP moving up the W coast before being swallowed by the Atlantic circulation. The Euro HP remains in place or a little further N until Thu 19th leaving UK sandwiched between it and large depression out on Atlantic, the latter throwing occasional troughs in our direction (Fri 13th, Mon 16th bear watching). The HP then collapses in the face of a strong W-ly flow eventually bringing LP close to N Scotland Mon 23rd.


GEFS: Mean of temp runs returning to seasonal norm with good agreement to Sat 14th, thereafter a degree or two above norm with increasing uncertainty. More rainfall spikes than yesterday,  and extra on several days for SW England/N Ireland. No good agreement between runs on timing of rainfall but some suggestion that Mon 16th/ Wed 18th may be wettest.


ECM: similar to GFS; trough on Mon 16th is more developed


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

Chichester 12m asl
DEW
  • DEW
  • Advanced Member
08 November 2020 07:42:51

Jetstream weak in the area of the UK until a trough moves in from the Atlantic  Wed 11th , which then resolves into a weak W-ly flow until Sat 14th. Then a stronger W-ly flow for a few days until another loop flips the main flow well to the N of the UK where it stays through to Tue 24th.


GFS shows HP over Baltic and LP over Atlantic with S-ly winds over UK; occasional troughs embedded in the flow affecting mostly the northwest, notably Thu 12th and Sun 15th. The HP moves W-wards and links to the Azores high Thu 19th, resolving into its centre sitting over the UK Tue 24th. To start with (the 19th), the source of the air is from the SE so dry and sunny but later from the SW so fog more likely.


GEFS mean of runs keeps temps mostly at or a little above normal throughout, with the usual increasing scatter from  a week ahead. Some chance of rain Thu 12th - Thu 19th in England (and continuing after that in Scotland) but rather more definite for N Ireland and NW Scotland, minimal for E Anglia


ECM similar to GFS but with LP encroaching on NW Scotland Wed 18th while HP develops more to the SE rather than over the UK


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

Chichester 12m asl
CField
08 November 2020 08:31:07

Pretty depressing charts if it's cold weather you are hoping for., more so if this was between Dec 1-14  which is a very crucial period on how our winter could pan out.Saying that though living in Kent seeing a snowflake come out the sky at some stage in November has been as reliable a gauge to snow through the winter months than any model or forecast so prospects could be bleak.


Favourite snowstorm
Famous channel low
Dec 31st 1978
Hastings East Sussex
Foot of level snow severe drifting
Next day max temp -4 degrees Celsius
richardabdn
08 November 2020 09:59:06


 


I agree it is somewhat bleak and depressing isn't it!?


Exeter reached -1c last night with a frost - I guess this could be the coldest night time min temp for the rest of the month..!?


We are coming out of solar minimum and should now have greater chances of a colder winter, we should be in an easterly QBO as well and a weak La Nina not a super strong La Nina, The IOD should go negative this winter NOT positive - the NE pacific SST's should cool down NOT warm up! Temperatures at 10hpa as well as 30hpa are colder than average as always which will help power up the PV and increase strength of zonal winds as is evident!? Everything is going against the chances of a cold winter sadly. Again! 


Seasonal festive events cancelled including outdoor ones. - Very sad!! Where do we go from here!?


 


 


Originally Posted by: tallyho_83 


Bleak and depressing doesn't even begin to describe the current situation if you live here. Should be much colder than Devon but haven't even come close to recording a frost. Only two nights of this autumn have been colder than the coldest night of summer: +1.9C in October and +2.2C this month. Coldest max just 8.8C.


Nothing colder on the cards with just about the worst outlook imaginable. It's grim without precedent. All we have to look forward to are days on end of the revolting, repellent muck we have today. Stupidly mild nights with almost no diurnal range. The third vile November on the trot.


That this autumn could be worse than utter dross like 2006, 2011 and 2014 should serve as a warning for those who think the coming winter couldn't be worse than last year. At the start of this year I made a prediction that December would be frost-free here and on the basis of this horror autumn the odds of that happening must surely never have been shorter.


There just isn't a floor on how how low things can sink any more 


Aberdeen: The only place that misses out on everything


2023 - The Year that's Constantly Worse than a Bad November
2024 - 2023 without the Good Bits
GezM
  • GezM
  • Advanced Member
08 November 2020 10:53:47
Personally I'm loving the current set up. Lots of dry and sunny weather after all that awful rain in October. Yesterday was absolutely glorious around here and it was great to see loads of people out walking and cycling in the countryside instead of traipsing around the shops.
Sorry for going OT!
Living in St Albans, Herts (116m asl)
Working at Luton Airport, Beds (160m asl)
moomin75
08 November 2020 11:17:52

Personally I'm loving the current set up. Lots of dry and sunny weather after all that awful rain in October. Yesterday was absolutely glorious around here and it was great to see loads of people out walking and cycling in the countryside instead of traipsing around the shops.
Sorry for going OT!

Originally Posted by: GezM 


Off topic but yes yesterday was absolutely glorious and felt wonderful in the sunshine.


Witney, Oxfordshire
100m ASL
Brian Gaze
08 November 2020 11:33:31

GEFS 35 continues to show colder conditions in late November and early December. The anomaly across the European regions has been surprisingly consistent for a while now. 


(View charts here https://www.theweatheroutlook.com/twoforecasts/gefs-europe.aspx )


PS: Remember with GEFS35 it is basically 24 hours old when published regardless of the website / app you view it on.



 



Brian Gaze
Berkhamsted
TWO Buzz - get the latest news and views 
"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan
johncs2016
08 November 2020 11:33:55


 


Bleak and depressing doesn't even begin to describe the current situation if you live here. Should be much colder than Devon but haven't even come close to recording a frost. Only two nights of this autumn have been colder than the coldest night of summer: +1.9C in October and +2.2C this month. Coldest max just 8.8C.


Nothing colder on the cards with just about the worst outlook imaginable. It's grim without precedent. All we have to look forward to are days on end of the revolting, repellent muck we have today. Stupidly mild nights with almost no diurnal range. The third vile November on the trot.


That this autumn could be worse than utter dross like 2006, 2011 and 2014 should serve as a warning for those who think the coming winter couldn't be worse than last year. At the start of this year I made a prediction that December would be frost-free here and on the basis of this horror autumn the odds of that happening must surely never have been shorter.


There just isn't a floor on how how low things can sink any more 


Originally Posted by: richardabdn 


Last year at least brought us some cold weather in October and November. That didn't deliver us any snow, but that was a period where we actually did quite wewll in terms of the number of air frosts although as it turned out, that then ended up being "it" for our "winter".


However, we haven't even been able to get any of that during this autumn, especially from October onwards. October failed to deliver a single air frost to this part of the world and we haven't even come close to getting a frost during this month either, up until now.


Once again, we have that same old story of a strongly positive AO/NAO and very cold stratospheric temperatures over the North Pole, all things which drive a strong polar vortex with strong westerlies and mild temperatures, with the only difference being that all of this has arrived much earlier this year instead of being delayed until the start of the actual winter as it was last year.


Finally, the models after playing around with easterly winds and northern blocking for a while,are now offering us virtually no hope whatsoever, of any cold weather within the foreseeable future so from that perspective, I have to say that it is all looking a bit grim just now.


 


The north of Edinburgh, usually always missing out on snow events which occur not just within the rest of Scotland or the UK, but also within the rest of Edinburgh.
DEW
  • DEW
  • Advanced Member
09 November 2020 07:06:02

GFS - HP over Europe and LP over Atlantic with UK sandwiched between the two. Atlantic more prominent than forecast yesterday, esp Thu 12th with small trough moving in; by Mon 16th the HP has collapsed and a depression is sitting over Shetland 980mb. HP then sets up over France Wed 18th and its centre moves around  in the region of the southern UK through to Wed 25th. LP never far from the NW and strong pressure gradient will give SW gales from time to time.


GEFS - a less steady temp profile than yesterday, swinging between seasonal norm and very mild (oxymoron there?), the mild peaks on Fri 13th (only in S), Sun 15th, Wed 18th after which everything from 8C above norm to 5C below appears in various runs. Not much rain for the most part towards the SE though there could be something around Mon 16th in S, in E Scotland more likely 15th and 17th. A lot more rain generally in the W and esp NW


ECM similar to GFS, if anything positions HP/LP for more of a W-ly than SW-ly aspect


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

Chichester 12m asl
johncs2016
09 November 2020 08:54:00

Looking at the latest model output, I can't help thinking that there is a bit of an "if only it were summer" element in all of this just now, with mild or very mild winds from the south playing such a major part in the proceedings.

Those winds from the south or SW are after all, the very same winds which in around July, normally brings us our highest temperatures of the year (the upper 20s°C even here in Edinburgh with that same setup producing our hottest day on record in 2019 with a temperature of 31.6°C at Edinburgh Gogarbank).

It would therefore be interesting to see just how hot it got if we had this sort of setup during the summer. My guess is that the temperatures would probably easily get into the upper 30s°C in places such as SE England with a lot of comment on forums such as this one, about a possibility a temperature of 40°C or above being reached somewhere within the UK.

That is certainly not the sort of setup which we want to be seeing at this time of the year, which is supposed to be a "cooling" period after all. Yet this is the sort of setup which occurs all too often during the winter half of the year whilst only ever really coming in very short bursts during the summer, with our weather at that time of year being dominated more by cooler and often we conditions, especially here in the northern half of the UK.


The north of Edinburgh, usually always missing out on snow events which occur not just within the rest of Scotland or the UK, but also within the rest of Edinburgh.
ballamar
09 November 2020 11:39:34
Hopefully a bigger cluster of colder members in GEFS towards last week November. Seems like we will have to look North
CField
09 November 2020 12:19:51


Looking at the latest model output, I can't help thinking that there is a bit of an "if only it were summer" element in all of this just now, with mild or very mild winds from the south playing such a major part in the proceedings.

Those winds from the south or SW are after all, the very same winds which in around July, normally brings us our highest temperatures of the year (the upper 20s°C even here in Edinburgh with that same setup producing our hottest day on record in 2019 with a temperature of 31.6°C at Edinburgh Gogarbank).

It would therefore be interesting to see just how hot it got if we had this sort of setup during the summer. My guess is that the temperatures would probably easily get into the upper 30s°C in places such as SE England with a lot of comment on forums such as this one, about a possibility a temperature of 40°C or above being reached somewhere within the UK.

That is certainly not the sort of setup which we want to be seeing at this time of the year, which is supposed to be a "cooling" period after all. Yet this is the sort of setup which occurs all too often during the winter half of the year whilst only ever really coming in very short bursts during the summer, with our weather at that time of year being dominated more by cooler and often we conditions, especially here in the northern half of the UK.


Originally Posted by: johncs2016 

very Frebruary 2019


Favourite snowstorm
Famous channel low
Dec 31st 1978
Hastings East Sussex
Foot of level snow severe drifting
Next day max temp -4 degrees Celsius
Gooner
09 November 2020 14:00:02


This is what I'm looking for HP to sit over the UK 



Hopefully we can then get it into a favourable position 



Not quite but you get the idea 


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


ballamar
09 November 2020 14:43:31



This is what I'm looking for HP to sit over the UK 



Hopefully we can then get it into a favourable position 



Not quite but you get the idea 


Originally Posted by: Gooner 


The heights over France and Spain could spoil our opportunities again this winter!

marco 79
09 November 2020 15:29:52
Winter looks likely to set in across Scandinavia in the further outlook according to GFS op...meanwhile looks quite toasty for the UK..esp in a weeks time
Home : Mid Leicestershire ...135m ASL
roadrunnerajn
09 November 2020 15:59:31

Does anyone know what the charts looked like this time in 1981? That was a lovely December/ January... spoilt by February..


Germoe, part of the breakaway Celtic Republic.
Gooner
09 November 2020 16:42:04


Does anyone know what the charts looked like this time in 1981? That was a lovely December/ January... spoilt by February..


Originally Posted by: roadrunnerajn 


Gavs Weather has a video on that winter - worth a watch 


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Gooner
09 November 2020 16:43:08


The theme continues from GFS , HP sitting over the UK 


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


mulattokid
09 November 2020 17:31:31

Just to get a quick one in for the majority of the population, the wildlife and our garden plants.


 


Thank goodness it is not freezing cold and will not be for the foreseeable and is just fairly standard 'British' weather.


Located in West London

"Everything in life is our fault, but that's not our fault!"
Anonymous friend of Quentin Crisp
tierradelfuego
09 November 2020 17:49:30


Just to get a quick one in for the majority of the population, the wildlife and our garden plants.


 


Thank goodness it is not freezing cold and will not be for the foreseeable and is just fairly standard 'British' weather.


Originally Posted by: mulattokid 


 


+5c on average temperatures for the time of year is surely/hopefully not standard 'British' weather, as much as recent winters may make us think it is?


 


Some things (garden plants especially), and not just some of us in our desire, do need cold weather to recuperate, regenerate and thrive in following seasons. 


Bucklebury
West Berkshire Downs AONB
135m ASL

VP2 with daytime FARS
Rainfall collector separated at ground level
Anemometer separated above roof level
WeatherLink Live (Byles Green Weather)
Gooner
09 November 2020 18:17:54


GFS 12z Control starts to show something interesting late on


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


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