The Weather Outlook

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DEW
  • DEW
  • Advanced Member
30 May 2025 06:54:07
WX average temp charts for week 1 show most of SW/W Europe above norm, cooler for Scandinavia and Baltic & south to Turkey, with Britain straddling the divide. In week 2 cooler weather moves S-wards from Scandinavia to the Alps, much warmer to the east, Britain staying fairly warm in the S, cool in the N. Rainfall prediction is given for eighteen months beginning Jan 1st 1979!

GFS Op 00z: For the first week generally W-ly aspect to the weather so unsettled in the N, fine in the S, with more significant troughs in the flow Sun 1st (affecting mainly Scotland), Tue 3rd (most of Britain) and Fri 6th (mainly Scotland). Ridge of HP to start the week Mon 9th (1030mb E Anglia) drifting E-wards generating strong S-lies assisted by LP mid Atlantic and maybe combining with something thundery over France Wed 11th . New HP from SW Sun 15th.

ECM; similar to GFS but the trough on Fri 6th is a broad shallow affair.

GEM; like GFS but the troughs dipping somewhat further S, and that on Fri 6th slower to clear away.

GEFS; In the S temps dropping back to norm Sun 1st and staying there with good ens agreement to Fri 6th. After that, mean stays near norm with most ens members a little below that but a significant number of runs much above that (e.g. control 12C above norm on Mon 9th). Dry to Tue 3rd, small amounts of rain to Mon 9th but a few runs with big spikes in the SW, very little after that.  In the N, temps never much above norm and even slightly below around Mon 2nd, continuing near norm without the benefit of hot outliers; small amounts of rain at any time, very little in NE. 


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

Chichester 12m asl

Ally Pally Snowman
30 May 2025 07:04:49
Well the output is certainly interesting atm. Very hot air just to our south.  Unsettled to the north , the UK sandwiched between.  Still have the day 10 heatwaves but ECM most optimistic this morning gets some heat in day 7 but still has LPs smashing into the North.
Bishop's Stortford 85m ASL.
Ally Pally Snowman
30 May 2025 10:59:24
Another day 10 heatwave on the GFS 6z.  Can it ever get closer?
Bishop's Stortford 85m ASL.
Jiries
30 May 2025 11:31:38

Another day 10 heatwave on the GFS 6z.  Can it ever get closer?

Originally Posted by: Ally Pally Snowman 

They have to and it June so models have to get a grip, more accurate and closer.  This month is very important to get a heatwave while daylight longer and have this embarrassing record 35.6 smashed as it was set in non global warming years ago.  Those lows in the north to sod off to let the heat fully nationwide unlimited. Also not deep cold in the USA to cause all the lows crashing to the north which seem wrong. 

Ally Pally Snowman
30 May 2025 12:01:46

They have to and it June so models have to get a grip, more accurate and closer.  This month is very important to get a heatwave while daylight longer and have this embarrassing record 35.6 smashed as it was set in non global warming years ago.  Those lows in the north to sod off to let the heat fully nationwide unlimited. Also not deep cold in the USA to cause all the lows crashing to the north which seem wrong. 

Originally Posted by: Jiries 

Yes models really struggling atm. But a pretty consistent signal in the ensembles that SLP to rise to something decent again by the 8th.

https://www.wetterzentrale.de/en/show_diagrams.php?geoid=49069&model=gfs&var=23&run=6&lid=ENS&bw=1 


Bishop's Stortford 85m ASL.
30 May 2025 12:49:00
I do love the style of your contributions Jiries. Your indignation at how the models fail to produce what they should always makes me chuckle.
Jason

Salfords, Surrey

idj20
30 May 2025 23:55:55

Another day 10 heatwave on the GFS 6z.  Can it ever get closer?

Originally Posted by: Ally Pally Snowman 

On the other hand, it all disappears in the distant horizon on the GFS 18z run. 🤣 But as always it's not a forecast.


Home location: Folkestone Harbour.
The Beast from the East
31 May 2025 00:40:01
Potential for something nasty on Friday.  Quite rare to see at this time of year.  Not good for the Epsom races, though we will be sheltered better down here. 
Purley, Surrey, 70m ASL

"We have some alternative facts for you"

Kelly-Ann Conway - former special adviser to the President

DEW
  • DEW
  • Advanced Member
31 May 2025 08:22:45
WX summary loading yesterday's charts.

GFS Op 00z; LPs in succession passing over or close to the north of Britain; Sun 1st 995 mb Faeroes (only affects the far N), Tue 3rd 980 mb Cape Wrath (effects down to N England at first but hangs around and swings a trough across the whole of Britain Fri  6th), 995mb Hebrides Tue 10th. Then pressure rises to cover the country briefly before a passing trough appears 1010mb Wales Sat 14th  and afterwards back to HP again.

ECM; like GFS but the LP 3rd/4th is deeper at 970mb with stronger winds.

GEFS;  as yesterday  In the S temps dropping back to norm Sun 1st and staying there with good ens agreement to Fri 6th. After that, mean stays near norm with most ens members a little below that but a significant number of runs much above that (e.g. control 12C above norm on Mon 9th). Dry to Tue 3rd, small amounts of rain to Mon 9th but a few runs with big spikes in the SW, very little after that.  In the N, temps never much above norm and even slightly below around Mon 2nd, continuing near norm without the benefit of hot outliers; small amounts of rain at any time, very little in NE.


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

Chichester 12m asl

White Meadows
31 May 2025 17:04:57
GFS and EC ensembles generally hovering around the 20c mark for the foreseeable, mixed with strong winds at times throughout the period and showers. Pretty non descript and boring for June. Any heat bottled up over Iberia. 

Think I’ll keep that paddle board purchase on hold. 

Good for the farmers, mind. 

DEW
  • DEW
  • Advanced Member
01 June 2025 07:15:53

GFS Op 00z: A mainly westerly  regime this week with troughs passing close to N Scotland and sometimes extending south as far as the Channel; today 995mb (local to NW), Tue 3rd 970mb (extensive), Thu 5th 985mb (extensive but shallow), Sat 7th 1000mb (ditto). HP then sets up in the N Sea which with LP N Atlantic generates southerlies Tue 10th, rather strong on the W coast, and after a brief breakdown Sat 14th, re-appears centred over NE England 1030mb Mon 16th.

FAX confirms the timings for this week but for Tue 3rd, the fronts weaken over SE England, but for Thu 5th shows the trough more focused, dipping to 991mb Wales.

ECM: like GFS for this week though pressure tends to be higher in the south; the HP Tue 10th fails to materialise and Britain is under a broad westerly flow.

GEFS: For England, temps near norm or slightly cooler to Tue 10th, then near norm or slightly warmer with an increased spread of ens members. Some rain Thu 5th and a few days after, then mainly dry (just a couple of runs suggesting thundery downpours 13th - 15th).  For Scotland, temp profiles similar, rain likely at any time but amounts in NE are minimal.


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

Chichester 12m asl

Rob K
01 June 2025 08:36:13
I haven’t checked the models much recently but looking the GEFS look very dry still in the south (apart from brief wet spells on the 3rd and 5/6th) and with broadly increasing temperatures. 

We took a gamble and came down to Dorset for a couple of nights camping and it’s been far nicer than forecast. I think in reality the weather ok the ground will be pretty decent over the coming week despite a few showers around. 


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

fairweather
01 June 2025 11:07:12
Well the Met Office video forecast online seem to be over forecasting the rain in my opinion. Just watched this morning's one and she said on Tuesday there will be a spell of heavy rain moving across the whole of the Country. The S.E and London presumably is still part of it despite you having to have to search a lot to find any sort of mention of the region in the forecasts these days. I suppose dry, dry and dry is just too boring for them.
S.Essex, 42m ASL
The Beast from the East
01 June 2025 11:11:38

Well the Met Office video forecast online seem to be over forecasting the rain in my opinion. Just watched this morning's one and she said on Tuesday there will be a spell of heavy rain moving across the whole of the Country. The S.E and London presumably is still part of it despite you having to have to search a lot to find any sort of mention of the region in the forecasts these days. I suppose dry, dry and dry is just too boring for them.

Originally Posted by: fairweather 

We will get something on tuesday and then showers for the rest of the week, something more organised on Thursday.  Should be enough to keep the grass green anyway. Not good for Ladies day at Epsom though!


Purley, Surrey, 70m ASL

"We have some alternative facts for you"

Kelly-Ann Conway - former special adviser to the President

Ally Pally Snowman
02 June 2025 04:57:07
Sadly the output is remaining stubbornly unsettled. The heatwave to remain in Europe by the looks of it.
Bishop's Stortford 85m ASL.
DEW
  • DEW
  • Advanced Member
02 June 2025 06:42:50
GFS Op 00z; Until Sat 14th a generally cool W/NW regime. To start with LPs pass north of Scotland mostly near Faeroes, sometimes extending their influence down to the Channel (970mb Tue/Wed , 975mb Thu with small disturbance affecting England, Sat 7th ditto), later just slack LP ca 1000mb across the N Atlantic. From Tue 17th HP moves in from the SW 1040mb W of Ireland, ridging NE-wards to Scotland with LP in Biscay causing strong E-lies for the S.

FAX; fronts crossing Britain Tue but weakening as they approach the SE; a couple of minor disturbances crossing England in the W-ly flow on Thu with the second one almost developing into a proper (secondary) depression.

ECM; similar to GFS but manages to squeeze in more action next weekend with lower pressure on Monday followed by a brief ridge of HP Tue 10th

GEFS; On the cool side to Tue 10th then warming up slightly but with a bigger but even spread of ens members, op (and in the S control) being the most optimistic at 8 or 9C above norm. In the S, rain  for a day or two around Fri 6th, just a few splashes at other times. In the N, small amounts of rain at any time.


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

Chichester 12m asl

Ally Pally Snowman
02 June 2025 07:17:03
Ecm the best of the bunch this morning, HP nudging in by 168h and just about hangs on until the end of the run in the South. Becoming hot by then. LP always close by the NW though. 
Bishop's Stortford 85m ASL.
GezM
  • GezM
  • Advanced Member
02 June 2025 08:23:58

Ecm the best of the bunch this morning, HP nudging in by 168h and just about hangs on until the end of the run in the South. Becoming hot by then. LP always close by the NW though. 

Originally Posted by: Ally Pally Snowman 

All still some distance away but more general signs of an improvement, according to GFS, in about 7 days time with pressure tending to rise - initially in the south and then further north beyond 12 days. If only we could rely on this synopsis! 


Living in St Albans, Herts (116m asl)

Working at Luton Airport, Beds (160m asl)

Ally Pally Snowman
02 June 2025 09:06:29

All still some distance away but more general signs of an improvement, according to GFS, in about 7 days time with pressure tending to rise - initially in the south and then further north beyond 12 days. If only we could rely on this synopsis! 

Originally Posted by: GezM 

Yes the dangled carrott heatwave has been very frustrating. Hopefully only a 4 or 5 day unsettled blip here then  NW-SE split then generally more settled and a heatwave.  What could possibly go wrong.


Bishop's Stortford 85m ASL.
cultman1
02 June 2025 10:29:29
I hope you are right I have no exact knowledge on the medium term forecast  but am of the opinion we could be in for a protracted cooler and unsettled spell  than currently forecast looking at The Atlantic finally firing up coupled with a strengthening jet stream 
fairweather
02 June 2025 12:39:22

Sadly the output is remaining stubbornly unsettled. The heatwave to remain in Europe by the looks of it.

Originally Posted by: Ally Pally Snowman 

Wouldn't be so bad if it rained in between. Despite them keep saying heavy rain sweeping S.E tomorrow I'll be surprised if I even get 2mm !!

Gardeners and growers are suffering big time round here.


S.Essex, 42m ASL
GezM
  • GezM
  • Advanced Member
02 June 2025 12:47:03

Wouldn't be so bad if it rained in between. Despite them keep saying heavy rain sweeping S.E tomorrow I'll be surprised if I even get 2mm !!

Gardeners and growers are suffering big time round here.

Originally Posted by: fairweather 

To be fair, you are in about the driest part of the UK with typically between 525 and 600mm a year on average. If you were getting plentiful rain in South Essex, the chances are that most of the rest of the UK would be getting awful weather. 


Living in St Albans, Herts (116m asl)

Working at Luton Airport, Beds (160m asl)

Retron
02 June 2025 12:50:34

Wouldn't be so bad if it rained in between. Despite them keep saying heavy rain sweeping S.E tomorrow I'll be surprised if I even get 2mm !!

Gardeners and growers are suffering big time round here.

Originally Posted by: fairweather 

The 6z GFS has 1.5mm here tomorrow, what a washout! Then 7mm on Thursday, <1mm on Friday, 1.5mm on Saturday and 3mm on Sunday, a total of 13mm by this time next week. Thursday looks like the only genuinely wet day, and one wet day won't do much to alleviate things.


Leysdown, north Kent
NMA
  • NMA
  • Advanced Member
02 June 2025 13:30:17

Well the Met Office video forecast online seem to be over forecasting the rain in my opinion. Just watched this morning's one and she said on Tuesday there will be a spell of heavy rain moving across the whole of the Country. The S.E and London presumably is still part of it despite you having to have to search a lot to find any sort of mention of the region in the forecasts these days. I suppose dry, dry and dry is just too boring for them.

Originally Posted by: fairweather 

The heavy rain forecast even yesterday for tomorrow (here) seems to have been put to one side by the BBC. Thursday still has heavy rain but I guess it's more likely that it will fall in tiny amounts by then. I'd like to be wrong of course. The recent winds combined with sunshine aid transpiration with no restoration here. Winds have been incessant here once the suns up. Apologies to all further north who have had enough rain for the time being.


Vale of the Great Dairies

South Dorset

Elevation 60m 197ft

Matty H
02 June 2025 19:50:20

The heavy rain forecast even yesterday for tomorrow (here) seems to have been put to one side by the BBC. Thursday still has heavy rain but I guess it's more likely that it will fall in tiny amounts by then. I'd like to be wrong of course. The recent winds combined with sunshine aid transpiration with no restoration here. Winds have been incessant here once the suns up. Apologies to all further north who have had enough rain for the time being.

Originally Posted by: NMA 

Excellent and long may it continue. As a fan of extreme weather I couldn’t care less if some areas need rain. Same as old

folk don’t want 3ft of snow in winter but others do

looks more unsettled for here for a week, but not massively so, and I’m cautiously optimistic for the summer. The drier, hotter and more humid the better 


Yate, Nr Bristol

TBFTEIARBSC

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