The Weather Outlook

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Snow Hoper
30 December 2024 11:12:43

Tasty set of ensembles creeping out this morning. And to think this time yesterday we were on the brink of some serious wrist slashing. 

Originally Posted by: White Meadows 

I still want ECM to tone down the Atlantic and get on board.


Going to war over religion is like killing each other to see who has the better imaginary friend.

Home : Mid Suffolk.

48m Asl

Rob K
30 December 2024 11:18:46
A few more mild options on the short 6Z GEFS than the 0Z, but also a few colder ones in the nearer term getting down to -10C in the south.
Yateley, NE Hampshire, 73m asl

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AJ*
  • AJ*
  • Advanced Member
30 December 2024 11:20:42

They issued a yellow yesterday, it covers pretty much all of England and Wales. It will be updated today, no doubt, and there's a moderate chance of an amber for the far SE I'd suggest.

As for the 6z GFS, it at long last weakens the low, turning it into an elongated trough. It remains to be seen how strong the winds are, though, as those higher-res charts aren't quite out yet.

Originally Posted by: Retron 

Wind warning for Wednesday updated at 10:57am - area covered reduced to England and Wales south of Birmingham and timing brought forward a little. Still yellow.

https://weather.metoffice.gov.uk/warnings-and-advice/uk-warnings#?date=2025-01-01 


Angus; one of the Kent crew on TWO.

Tonbridge, 40m (131ft) asl

White Meadows
30 December 2024 11:22:20

I still want ECM to tone down the Atlantic and get on board.

Originally Posted by: Snow Hoper 

Will it, won’t it… like others have discussed it will be a fascinating litmus test to see whether ECM or its younger, smarter, better looking cousin with AI wins the trust of the model watchers. 

EC is out on a limb to some extent. Its suite certainly looks the messiest today. 

Retron
30 December 2024 11:23:10

Wind warning for Wednesday updated at 10:57am - area covered reduced to England and Wales south of Birmingham and timing brought forward a little. Still yellow.

https://weather.metoffice.gov.uk/warnings-and-advice/uk-warnings#?date=2025-01-01 

Originally Posted by: AJ* 

An interesting mention there of a squally front passing through, which matches the traditional passage of a cold front: a brief, sharp rise in gusts followed by a swift return to much quieter conditions. We've not seen one of those for a while down here, with the last two windy episodes instead being prolonged warm-sector events, with the eventual cold (or rather occluded) front not being noticeable in terms of wind.

EDIT: And we have an amber rain warning over parts of Scotland, too. No mention of naming the storm though...


Leysdown, north Kent
ballamar
30 December 2024 11:37:56
GEFS are pretty stunning for January in my eyes 
Brian Gaze
30 December 2024 11:48:29
ECM ENS are significantly different to GEFS and more consistent with yesterday's 12Z updates. 

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Brian Gaze

Berkhamsted

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Saint Snow
30 December 2024 11:54:39

The GFS new years mega storm was always going to be a comedy outlier. Very typical of GFS. 

Originally Posted by: White Meadows 

Except it wasn't just GFS - and it was showing on multiple runs. The track was still TBC, but variations on the theme - a low moving across the southern half of UK on NYD - was almost across the board for a number of runs across multiple days.


Martin

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

A TWO addict since 14/12/01

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Aneurin Bevan

Brian Gaze
30 December 2024 11:55:13
I'll start a new thread at 12:00.
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
30 December 2024 11:58:52

ECM ENS are significantly different to GEFS and more consistent with yesterday's 12Z updates. 

Originally Posted by: Brian Gaze 

Yes, they're not great. The EPS suite performed a massive flip overnight, with the median (not mean) noon temperature here on Sunday going from 3C (0z yesterday) to 4.5C (12z) to 11C this morning. And that's a very certain 11C as far as it's concerned, too, with the top 50% being squidged in between 11 and 12.

Hopefully it's confidently wrong, and the evidence from the other models suggests it may well be.

Incidentally the AIFS has ensembles too, and they can be seen in meteogram form here:

https://charts.ecmwf.int/products/aifs_opencharts_meteogram?base_time=202412300000&epsgram=aifs_classical_10d&lat=51.3973&lon=0.921564&station_name=Leysdown-on-Sea 

(Type in your own town, like the main ensembles it has points all over the place).

The AIFS has a median of 6C on Sunday, with the op towards the bottom at 2C. A remarkable difference between the two suites, and I would wager the AIFS will be closer to the mark (again, given the other models).


Leysdown, north Kent
Saint Snow
30 December 2024 11:59:46
I rather like the GFS 6z!

Keeps the NYD snow for here (in fact, brings it forwards to the afternoon!)


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

White Meadows
30 December 2024 11:59:51

Except it wasn't just GFS - and it was showing on multiple runs. The track was still TBC, but variations on the theme - a low moving across the southern half of UK on NYD - was almost across the board for a number of runs across multiple days.

Originally Posted by: Saint Snow 

GFS always the one to overplay it. The ringleader in the daft OTT dartboard lows, you should know that by now. 

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