The Weather Outlook

Remove ads from site

warrenb
04 December 2024 13:23:18
Always seems to be the weekend lately doesn't it. Let's see how many events get pre-emptively cancelled for this one.
Saint Snow
04 December 2024 14:59:54

Always seems to be the weekend lately doesn't it. 

Originally Posted by: warrenb 

It's so annoying (although we've generally had rubbish Saturdays and OK Sundays)


Martin

Home: St Helens (26m asl) Work: Manchester (75m asl)

A TWO addict since 14/12/01

"How can wealth persuade poverty to use its political freedom to keep wealth in power? Here lies the whole art of Conservative politics."

Aneurin Bevan

squish
04 December 2024 15:34:12
12z ICON has track across the borders. Widespread event !
D.E.W on Dartmoor. 300m asl
Retron
04 December 2024 15:56:41

12z ICON has track across the borders. Widespread event !

Originally Posted by: squish 

The "max winds over 120 hours" chart is interesting - the peak winds are over Norfolk, at 90mph.

(The dark burgundy colour is what I look for in terms of damaging winds, it's 62-68mph.)

https://images.meteociel.fr/im/82/5096/iconeu_uk1_52_120_0jom7.png 

UserPostedImage


Leysdown, north Kent
squish
04 December 2024 16:00:49
GFS 12z similar track …looks even more intense !
D.E.W on Dartmoor. 300m asl
squish
04 December 2024 16:09:16
…GEM track also adjusted north 
D.E.W on Dartmoor. 300m asl
Retron
04 December 2024 16:10:15

GFS 12z similar track …looks even more intense !

Originally Posted by: squish 

It's actually less intense in terms of winds, the dreaded burgundy stays over the SW of England and the SW half of Wales. Not a bad thing if you're anywhere else!


Leysdown, north Kent
Chunky Pea
04 December 2024 16:20:58

It's actually less intense in terms of winds, the dreaded burgundy stays over the SW of England and the SW half of Wales. Not a bad thing if you're anywhere else!

Originally Posted by: Retron 

My preferred models when it comes to windspeed are the UKMO and the GFS. Both tend to be on the more conservative side of things, and thus, nearer the mark. Ecm, icon etc very often over inflate potential. 


Patrick,

East Galway, Ireland.

Brian Gaze
04 December 2024 16:32:28
Arpege is a horror show for parts of central and eastern England. I suspect we'll need a dedicated thread soon.

UserPostedImage


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

Retron
04 December 2024 16:35:31

Arpege is a horror show for parts of central and eastern England. I suspect we'll need a dedicated thread soon.

Originally Posted by: Brian Gaze 

...and the SE, further on. Widespread 80s across Essex and north Kent, including here.

Note the large expanse of burgundy too, pretty much the SE half of England seeing winds into the 60s or above!

https://images.meteociel.fr/im/90/20738/arpegeuk_52_101_0zso6.png 

UserPostedImage


Leysdown, north Kent
Saint Snow
04 December 2024 16:49:02

Is it just me looking at snow potential for Friday too?

Originally Posted by: Russwirral 

Latest Arpege for early hours Saturday...

UserPostedImage

Probably overdoing the snow chances away from high ground - but it definitely illustrates the risk


Martin

Home: St Helens (26m asl) Work: Manchester (75m asl)

A TWO addict since 14/12/01

"How can wealth persuade poverty to use its political freedom to keep wealth in power? Here lies the whole art of Conservative politics."

Aneurin Bevan

Retron
04 December 2024 17:00:55

Up to 47 now. Whatever model the MetO raw uses seems to update every hour, and Saturday's quite a long way away - I can't think of any models which are run hourly *and* go out that far!

Originally Posted by: Retron 

...and now 52. Impressive. Needless to say I hope this trend doesn't continue. The 12z GFS (now available on xc) is markedly quieter for most of us down in the SE, just 3 hours with winds in the 50s, compared to 36 hours in the 6z output!


Leysdown, north Kent
idj20
04 December 2024 17:33:39

Always seems to be the weekend lately doesn't it. Let's see how many events get pre-emptively cancelled for this one.

Originally Posted by: warrenb 

I can live with that as it might put off the local drunks from hanging around outside my street after the 3 am closing time at the nearby nightclub. If the weather has to turn crap, then this is a good time as any.  🤣🤣


Home location: Folkestone Harbour.
Hippydave
04 December 2024 17:42:36
Interesting GFS 12z run, which happily for Saturday IMBY would mean no issues from the wind, with the strongest winds held well to the West/South West as Darren mentions. UKMO op is similar too, pretty horrendous for the West coast from Northern England down though and particularly so for the SW across to around Wiltshire.  (Again given Darren's comments presumably some of the output the MetO use has the winds affecting the far SE more too). 

Looking at possible snowfall from the system, this reflects the uncertainty in the track - further North and it's really only higher parts of Scotland that see anything, a bit further South and Northern England and maybe even North Wales could see snowfall although again not likely to lower levels. 

Saturday's storm aside Scotland and N.England are essentially on the cold side of the jet throughout the GFS run post the brief HP interlude and whilst it's unsettled it's cold enough for hill snow for these areas as LPs cross the country (maybe at lower levels at times if it verified close to what's shown).  

Cool, very unsettled and wet and with the potential for potentially significant snowfall for higher parts of Northern England and Scotland for the longer term on this GFS run, although usual FI caveats apply. 


Home: Tunbridge Wells

Work: Tonbridge

some faraway beach
04 December 2024 18:07:49
The Met Office website forecast for Saturday in Taunton currently has 65 mph gusts for 9 am and 63 mph for midday. 

Off-hand, for Taunton, I can't think of such high gusts ever being forecast in all the time I've been using that website. And having high gusts for two consecutive three-hour periods is also quite rare.

Oh, hang on. It's just update to 66 mph and 63 mph!


2 miles west of Taunton, 32 m asl, where "milder air moving in from the west" becomes SNOWMAGEDDON.

Well, two or three times a decade it does, anyway.

Karl Guille
04 December 2024 21:52:56
Massive variance in the GFS 18z at just T60 with the nasty looking low now shown crossing the UK and Eire.

https://www.theweatheroutlook.com/charts/gfs/18_60_mslp850.png 


St. Sampson

Guernsey

idj20
04 December 2024 22:12:50
Seems a waste of that north east airflow post-low pressure on Sunday through to Tuesday. 20 years ago that would have bought the perfect Kent clippers bringing low level snow to my coastal location, but now the cold uppers just seems to get diluted every time. 

For now it's the usual wind and rain crap that we seem to have every other week. Roll on Spring.


Home location: Folkestone Harbour.
Brian Gaze
04 December 2024 22:44:39
Not sure if it was mentioned earlier, but ECM was quite interesting this evening.

UserPostedImage


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

ballamar
04 December 2024 23:24:18
Proper GFS pub run sinking lows with northern blocking! Nice to see gone tomorrow 

tallyho_83
05 December 2024 01:38:11

Proper GFS pub run sinking lows with northern blocking! Nice to see gone tomorrow 

Originally Posted by: ballamar 

But look what could happen over the N. pole? Early days to see any sort of stratospheric warming let alone to this degree (no pun intended!) But a warming over Siberia @ 10hpa seems to be a trend in every GFS run now and has been the case since Sunday...so one to keep an eye on! If not an SSW is certainly a displacement of the PV with the deep purple and blue for colder than average temperatures pushed southwards into Greenland and Canada and the warmer than average orange and red temps beginning to push in from Siberia into the n. Pole and if we were to go on for another couple of days it could have reached the top of the N Pole and will be in Pole position (No pun indented again) haha!  :)

UserPostedImage


Home Location - Vixen Tor Close, Okehampton, Devon (221m ASL)

---------------------------------------

Sean Moon

Magical Moon

www.magical-moon.com

CField
05 December 2024 05:08:19
Run of the season so far on the 00z gfs run to me....could the UK ultimately be in the sweet spot this winter?
Favourite snowstorm

Famous channel low

Dec 31st 1978

Hastings East Sussex

Foot of level snow severe drifting

Next day max temp -4 degrees Celsius

Caz
  • Caz
  • Advanced Member
05 December 2024 07:27:38
Met office forecast for wind gusts on Saturday has risen to 62 mph here. It showed 47mph last night and 58mph earlier this morning.  At what stage do they issue Amber warnings?  We’re booked on an elf train experience with our granddaughter on Saturday.  
Market Warsop, North Nottinghamshire.

Join the fun and banter of the monthly CET competition.

Ally Pally Snowman
05 December 2024 08:19:30
After the storms looks chilly but not cold enough for anything particularly interesting in the South. Scotland could do ok especially hills. 
Bishop's Stortford 85m ASL.
Retron
05 December 2024 08:25:39

Met office forecast for wind gusts on Saturday has risen to 62 mph here. It showed 47mph last night and 58mph earlier this morning.  At what stage do they issue Amber warnings?  We’re booked on an elf train experience with our granddaughter on Saturday.  

Originally Posted by: Caz 

Anywhere from 48 to 24 hours out, usually, so a good chance of them today - especially as the MetO raw is showing gusts of over 80mph in e.g. Bude.

https://weather.metoffice.gov.uk/forecast/gchc0ssk0#?date=2024-12-07 

Incidentally 36 to 82, as it currently shows, is one heck of a gust ratio! It means a more than fivefold increase in pressure/loading compared to the base... pretty disastrous if that comes off.


Leysdown, north Kent
DEW
  • DEW
  • Advanced Member
05 December 2024 08:28:18
WX temps for week 1 show NW Europe close to norm, but in week 2 colder weather intensifies over Russia and continues to spread W-ward; from fragmentary in week 1 to well-established over S Germany in week 2. The rest of the continent and Britain are also colder, just above freezing but with a small 'blue blob' over the Highlands. Pptn more or less concentrated from Britain down to Italy in week 1 but in week 2 widely distribute and not heavy anywhwere.

FAX - just a brief note on Storm Darragh which has its own thread; LP values 987mb North Sea Fri 6th for its forerunner, then on Sat 7th moving from Irish Sea 980mb to North Sea 984mb and on Sun 8th well away 993mb Adriatic though winds turning into the north slow to die down.

GFS Op - as noted above, an early trough in the N Sea followed by storm Darragh whistling through over the weekend. HP then settles over Scotland  for next week while the cold pool over continental Europe created by the N-lies from Darragh affects S England, near the SE Mon 9th and near the SW Wed 11th with NE/E-lies, pressure flattening out by Friday before new LP moves into the N Sea from the N 1005 mb Sun 15th with cold but weak N-lies. As this moves E-wards, a ridge of HP from the S sets up until Fri 20th by which stage it's being pushe aside by LP from Greenland.

ECM - very much like GFS until Sun 15th when the 'new LP' is closer and deeper 980mb Hebrides with an indication of stronger and colder N-lies to follow.

GEM - very much like GFS

GEFS - In the S, temps dropping below norm for the week beginning Sun 8th, to as much as 5C below norm in the far S, with good ens agreement, then mean recovering in the midst of a scramble of both mild and cold runs. Rain for the next few days, then mostly dry, rain re-starting in small amounts in many runs Sun 15th. In Scotland, pptn pattern similar, but temps recover quickly, by Tue 10th and stay near norm or (esp around Sun 15th) cool. Snow basically only for the Highlands this weekend.


War is God's way of teaching Americans geography - Ambrose Bierce

Chichester 12m asl

Remove ads from site