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western100
13 February 2021 12:38:45


 


I could not disagree more, the models beyond 5 days have generally been poor from my perspective.


Originally Posted by: Robertski 


Even for picking trends?


The weather for the 18th has been consistently shown for HP to the South? obviously that’s a current example but generally I can’t recall a complete pattern change within 5 days 


Worcestershire / Warwickshire Border
100m ASL
Twitter…..@Weather4u2
Rob K
13 February 2021 12:47:59


It wouldn't surprise me if that's it for our winter. Spring seems to kick in earlier and earlier with every passing year due to global warming, so mid February seems a good bet.


Originally Posted by: briggsy6 


Earlier? Seems to be we often get northern blocking hanging on into March, although I agree we often do get a warm spell early on as well. 


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
Retron
13 February 2021 12:51:16


I could not disagree more, the models beyond 5 days have generally been poor from my perspective.


Originally Posted by: Robertski 


The models generally have performed well. Well enough in fact to call the current easterly spell from more than 10 days out!


The mistake many make is not looking at a selection of models and not looking at the ensemble suites, in particular the ECM and GEFS suites, with the GEM ensembles being worth a look too. Get all three of those on board for a pattern and it's pretty much going to happen.


Incidentally the birds seem to think spring has arrived today! All sorts of chirping and so on this afternoon, a proper racket outside (but a much nicer one than traffic, screaming kids etc).


 


Leysdown, north Kent
DPower
13 February 2021 13:02:58
Maybe clutching at straws but is the gfs making more of the shallow heights (Arctic high) to our far north on each passing run. Take the 06z gfs runs for example.
https://images.meteociel.fr/im/5667/gfsnh-0-192_ier1.png 
https://images.meteociel.fr/im/2619/gfsnh-0-168_nfl6.png 
https://images.meteociel.fr/im/28/gfsnh-0-144_rhm2.png 
May come to nothing but something to keep an eye on.
hobensotwo
13 February 2021 13:06:22
A few colder options again at the end of the 6z gefs, however they remain just low probability options at this stage. Commenting on them would be falling foul of cherry picking.

I'm still not 100% convinced that winter is over yet.
Narnia
13 February 2021 13:21:42
I don’t think that anyone would be foolish enough to think the wintry weather was over. Possibly for the next ten days but the 6zs have definitely gone colder later on from the previous run. Will be interesting to see if this increases over the next few days for a colder outlook.
fairweather
13 February 2021 15:04:20


I think the models have done well this season? A lot more consistent at showing the trend than 10 years ago

People say they flip but I think they are pretty good at providing the overall trend. Yes details always change but if anyone thinks the models are for finer detail 3-10 days out then they need to reconsider their opinion.

It’s rare to get trend changes flipping inside 72 hours from the models

72 - 144 they are pretty consistent at the pattern, the severity of cold and heat will always fluctuate. Some runs it’s colder than others but ultimately the pattern is relatively well modelled

Like we see now...pattern is clear for a HP dominated periods with HPs to the East / SE / UK high. That’s been the trend for several days as was the cold spell which showed HP to the North well in advance

If anything the ECM and GEM have done very well. GFS sways more but I still think like I’ve said before that’s because it updates every 6 hours vs 12 hours from the rest


i don’t know what I’ll be having for dinner in 7 days time, or what clothes I’ll be wearing. The only thing I could know if that I’ll probably have odd socks on. So if the models can forecast 100% 7 days out, I need to seriously reconsider my life 


Originally Posted by: western100 


Agree completely. I monitored the GFS ensemble mean closely and it was very consistent in  the 7 day range. As ever snow amounts, when and where were as poor as ever but we knew they would be.


S.Essex, 42m ASL
NDunwell
13 February 2021 17:14:58


It wouldn't surprise me if that's it for our winter. Spring seems to kick in earlier and earlier with every passing year due to global warming, so mid February seems a good bet.


Originally Posted by: briggsy6 


What an utter nonsense post. I'm not disputing global warming and I'd say it is having an impact on our winters, however i think the seasons have also slightly shifted. Winter seems to take longer to get started and goes well on into March. March has often been one of the more wintry months in recent years, and of course the 2018 BftE was in March....which rather makes a mockery of your post.


Nick
Ruislip (2 miles from the Northolt recording station)
David M Porter
13 February 2021 17:34:56


 


What an utter nonsense post. I'm not disputing global warming and I'd say it is having an impact on our winters, however i think the seasons have also slightly shifted. Winter seems to take longer to get started and goes well on into March. March has often been one of the more wintry months in recent years, and of course the 2018 BftE was in March....which rather makes a mockery of your post.


Originally Posted by: NDunwell 


Not forgetting either that March 2013 ended up being the coldest March for CET since the early 1960s. That was only a year after we had one of the warmest on record.


Sometimes one can never tell what happens next with the British climate.


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
western100
13 February 2021 18:42:38


 


What an utter nonsense post. I'm not disputing global warming and I'd say it is having an impact on our winters, however i think the seasons have also slightly shifted. Winter seems to take longer to get started and goes well on into March. March has often been one of the more wintry months in recent years, and of course the 2018 BftE was in March....which rather makes a mockery of your post.


Originally Posted by: NDunwell 


I agree. GW has impacted the world greater with its extremes. Cold and Hot


We have definitely seen a shift in our seasons... spring and autumn are much shorter now and summer / winter are longer. Obviously there’s an element of IMO as well. But the facts would show Summer starts as early as April and can last until October. In some years we’ve moved from winter to summer almost instantly. 


Winter in the UK does start later, December CETs would support this with March yielding colder months than previous winter months. 


I often see our winter weather at it’s coldest January - March but I’m not sure that’s ever been different? CET shows December has the highest average 


Brian made a very valid point a few days ago... our weather has bigger extremes. This is very true, none more than this week. -23 being the UKs lowest temperatures since 95 and next week potentially 21 degrees. 


March 2013 coldest for over 50 years 


Summer months ... well plenty of large 30+ weeks 


Rainfall floods extreme most years in at least 1 season


Our chances of cold extreme are as high as Heat extreme


Onto the models....


GFS remains consistent with HP to be S of the UK. This will most definitely lead to high temperatures vs average 


 


 


Worcestershire / Warwickshire Border
100m ASL
Twitter…..@Weather4u2
Brian Gaze
13 February 2021 18:44:58


Summer months ... well plenty of large 30+ weeks 


Originally Posted by: western100 


It's reaching the stage where you can safely take a punt on 33C or 34C being reached in the summer even if you've not given the matter much consideration.


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
Polar Low
13 February 2021 18:51:41

Next Saturday looks a decent first spring day


if it pans out like that I think I’ll give the grass its first cut it certainly needs it


http://www.meteociel.fr/modeles/gefs_table.php?x=0&y=0&lat=51.5085&lon=-0.12574&run=12&ext=1&mode=7&sort=0

Polar Low
13 February 2021 19:06:01

Yes Brian interesting what will it max out for uk this summer?.


ps


when you consider we can get 17 +ve in southern Spain in February 


http://www.meteociel.fr/modeles/ecmwf.php?ech=72&mode=0&map=4&type=0&archive=0




 


It's reaching the stage where you can safely take a punt on 33C or 34C being reached in the summer even if you've not given the matter much consideration.


Originally Posted by: Brian Gaze 

Crepuscular Ray
13 February 2021 19:22:49
Shivering today, -2 C high wind chill, 6" snow. Then i look at ECM and GFS and next Saturday I'll be getting the garden furniture out! 😲😎
Jerry
Edinburgh, in the frost hollow below Blackford Hill
Tom Oxon
13 February 2021 19:27:36


 


It's reaching the stage where you can safely take a punt on 33C or 34C being reached in the summer even if you've not given the matter much consideration.


Originally Posted by: Brian Gaze 


 


 


I'm not sure that's ever been unusual.  It's more the count that has increased.


S Warwickshire countryside, c.375ft asl.
Lionel Hutz
13 February 2021 22:22:23


 


What an utter nonsense post. I'm not disputing global warming and I'd say it is having an impact on our winters, however i think the seasons have also slightly shifted. Winter seems to take longer to get started and goes well on into March. March has often been one of the more wintry months in recent years, and of course the 2018 BftE was in March....which rather makes a mockery of your post.


Originally Posted by: NDunwell 


While I certainly wouldn't like to call Briggsy's post nonsense(a bit harsh), I would agree that it's way too early to write off winter. Regardless of recent years, March has traditionally been known in Ireland(possibly in the UK too)as "March many weathers". With the seas around us remaining cold, you can never write off cold in March.


Lionel Hutz
Nr.Waterford , S E Ireland
68m ASL



Brian Gaze
13 February 2021 22:35:11


I'm not sure that's ever been unusual.  It's more the count that has increased.


Originally Posted by: Tom Oxon 


Yes it has. Between 1977 and 1988 34C wasn't even reached once in the UK.


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
western100
13 February 2021 22:47:57
GFS keeping its consistency again with a big block to the South or over the UK

People say the models flip (I don’t think they do). If cold is what your after then there needs to be a flip as this pattern is a pattern that will not go away after a few days. 2-3 weeks potentially of a Southern placed HP once it sets in
Worcestershire / Warwickshire Border
100m ASL
Twitter…..@Weather4u2
David M Porter
13 February 2021 23:01:55


 


Yes it has. Between 1977 and 1988 34C wasn't even reached once in the UK.


Originally Posted by: Brian Gaze 


I might be wrong here, but I think during that period, only the summers of 1983 & 1984 saw numerous days throughout the season in which somewhere in the UK reached/surpassed 30C


I am fairly sure that 30C was reached/beaten in parts of Scotland at least once in each of those summers, and the all-time record for Scotland is (someone please correct me if I am wrong) 32.8C. Not even the likes of August 2003 or June/July 2018 managed to surpass this record.


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
David M Porter
13 February 2021 23:11:29

GFS keeping its consistency again with a big block to the South or over the UK

People say the models flip (I don’t think they do). If cold is what your after then there needs to be a flip as this pattern is a pattern that will not go away after a few days. 2-3 weeks potentially of a Southern placed HP once it sets in

Originally Posted by: western100 


It will largely depend upon where the HP goes, assuming it develops as GFS shows. If it stays to the south/south-east of the UK and does not retrogress northwards in time, then it is game over for another cold spell in the near future. However, if it does move north at a later time and if the upstream pattern becomes favourable, then who knows.


If this winter had had a pattern that was the same or broadly very similar to last winter, i.e total atlantic domination with very little or no divergence away from this, I would be more likely to agree that it was pretty well game over for cold anytime soon. However, the recurring theme of this winter (certainly in the post-Christmas/New Year period) seems to have been that whenever the cold weather has relinquished its grip for a while, it has never gone far away and always seems to have been fairly nearby waiting to strike again.


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
BJBlake
14 February 2021 00:30:39

GFS and ECM end in FI with many cold perts, Energy heading north to Svalbard on a stalling Atlantic front (ECM), likely to precipitate increasing heights over Scandinavia. Many perts (9 - GFS) place the heights towards the Greenland side, and unleash an Arctic blast to herald the beginning of March. This all looks plausible, and I would expect this sort of scenario to manifest for the 1st week of March. Usually more convective and snowier then too. 


Brecklands, South Norfolk 28m ASL
DEW
  • DEW
  • Advanced Member
14 February 2021 07:22:37

Jetstream in charge of the UK for the time being, though with plenty of waving about and a reluctance to run on strongly into Europe. Hints of a pattern change from Fri 26th when a larger loop than usual develops and to the souh of the UK


GFS - the previous pattern of S-ly flow between Atlantic LP/Scandia HP somewhat modified this morning, with the HP much weaker and deeper troughs in the S-ly flow Tue 16th - Fri 19th. (FAX has a good collection of fronts on display - watch those river levels!) . Drying out for a while with HP centred over S England Mon 22nd - Thu 25th then trough of LP moving across to link up with more LP centres developing from Scandia to Iberia with winds from N at first round to E by Tue 2nd.


GEFS - in the S temps near or a little above norm this week and wet; then well above average (with one brief hiccup) and dry to Fri 26th after which trend to cooler and a bit of rain re-appearing. Much the same in the N though not quite as dry and much more uncertainty towards end of run.


ECM - Similar to GFS at first but HP never really develops Mon 2nd  and the chart has a zonal feel to it instead


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

Chichester 12m asl
Whether Idle
14 February 2021 07:42:55

ECM 144


http://www.meteociel.fr/modeles/ecmwf.php?ech=144&mode=1&map=0&type=0&archive=0


The return of mild wet windy gunk.  That chart has a long fetch southwesterly look for the western upslopes, I suspect flooding will return to the agenda in the N and W now that normal service is resumed.


Dover, 5m asl. Half a mile from the south coast.
western100
14 February 2021 07:51:29
Very consistent agreement between GFS / EMC and GEM

Long SW feed with HP still anchored to the SE / S of the UK in longer term

Slight tweak to the UK High, that seems to be altered a little but general consensus remains unchanged

Above average temps throughout the period, especially in the SW.

May end up with 5+ CET for Feb which would be above average which would be a huge swing from the 2 it currently is. That is historic in many ways on a cold and warm angle
Worcestershire / Warwickshire Border
100m ASL
Twitter…..@Weather4u2
nickward_uk
14 February 2021 09:08:43


 


What an utter nonsense post. I'm not disputing global warming and I'd say it is having an impact on our winters, however i think the seasons have also slightly shifted. Winter seems to take longer to get started and goes well on into March. March has often been one of the more wintry months in recent years, and of course the 2018 BftE was in March....which rather makes a mockery of your post.


Originally Posted by: NDunwell 


Ive said this a few times on here - in fact the flaming I got last time I posited this is the main reason I rarely post any more

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