The Weather Outlook

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Rob K
20 July 2018 13:21:21
Drought continues so far - there were some cells on the radar a few miles to the south/southwest of here earlier, but they seem to be fizzling out. The stuff to the east doesn't look like reaching here, so it will be down to any afternoon pop-ups.
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

Stewart
20 July 2018 16:43:27
Sudden heavy downpour here near Abingdon. Big drops. Good luck everyone at the Truck Festival down the road!


Stewart

Southmoor or Harwell, Oxfordshire

Arcus
24 July 2018 06:44:16

A way off yet, but Friday looks pretty good - a shallow low in the SE with a trough down the spine of the country that doesn't move much during the day. Much can change, but worth keeping an eye on:

 

 

 


Ben,

Nr. Easingwold, North Yorkshire

30m asl

TimS
  • TimS
  • Advanced Member
24 July 2018 07:14:42
Yes, I’m wondering if for once GFS is undergoing the convective rain.
Brockley, South East London 30m asl
Arcus
24 July 2018 07:26:22

Yes, I’m wondering if for once GFS is undergoing the convective rain.

Originally Posted by: TimS 

GFS more keen on Thursday afternoon than Friday itself for showers/storms over central areas, but it has been pushing the fronts in that bit quicker than ECM in recent runs. Time will tell...


Ben,

Nr. Easingwold, North Yorkshire

30m asl

LeedsLad123
24 July 2018 12:07:33
Oh no - I usually pray for thunderstorms but I wanted this month to be the second consecutive one under 10mm. That could go out of the window on Friday.
Whitkirk, Leeds - 85m ASL.
P+ve Giant
24 July 2018 13:05:09

Very murky just to the west of here - shows up well on the radar - looks to be a very localised intense downpour!

Edit: 14.12 .. it soon decayed but shows up well on the 13.50 Meto radar.

 


John.
Arcus
24 July 2018 19:47:24
Just a boost on this thread, as discussion on convective potential for Thur (low) and Fri (potentially high) is leaking into other threads.
Ben,

Nr. Easingwold, North Yorkshire

30m asl

TimS
  • TimS
  • Advanced Member
24 July 2018 19:50:31

Oh no - I usually pray for thunderstorms but I wanted this month to be the second consecutive one under 10mm. That could go out of the window on Friday.

Originally Posted by: LeedsLad123 

I’m with you. Forget comfort or aesthetics, all that matters now is the stats. The drier the better. Until September 2019 just after Dominic Raab gets made minister for drought.


Brockley, South East London 30m asl
Jiries
24 July 2018 20:01:39

Just a boost on this thread, as discussion on convective potential for Thur (low) and Fri (potentially high) is leaking into other threads.

Originally Posted by: Arcus 

That not good thing since people would be too busy discussing it while outside is hot and sunny with near record high temps.  Notice it would be 3rd Friday on the trot with hit and miss storms.

speckledjim
24 July 2018 20:05:45

Oh no - I usually pray for thunderstorms but I wanted this month to be the second consecutive one under 10mm. That could go out of the window on Friday.

Originally Posted by: LeedsLad123 

 

Just in time for my annual camping trip 


Thorner, West Yorkshire



Journalism is organised gossip

Arcus
24 July 2018 20:43:01

Changes on the faxes, as expected:

00z Friday (can see the potential storm risk on Thursday for NE Eng/E Scotland, also CS Eng, though potentially more capped here):

12z Friday (actually more of a concession to GFS rather than ECM, but matches MetO warnings quite well):

 

 


Ben,

Nr. Easingwold, North Yorkshire

30m asl

24 July 2018 21:21:09

Changes on the faxes, as expected:

00z Friday (can see the potential storm risk on Thursday for NE Eng/E Scotland, also CS Eng, though potentially more capped here):

12z Friday (actually more of a concession to GFS rather than ECM, but matches MetO warnings quite well):

 

 

Originally Posted by: Arcus 

Ben Rich was making a big thing about Friday on the 2155 forecast. His charts clearly showed a new frontal system developing in situ across central England during Friday, quite separate from the fronts associated with the low out west.

The potential is there on Friday afternoon and evening for widespread torrential thunderstorms, particularly from the Midlands northwards with some serious amounts of rain across the spine of England which could cause flash flooding. Localised disruption is expected. Central southern areas may see some isolated storms but look likely to miss out on most of the action.

The far east of England and the SE also largely miss out. That said one or two very localised but intense storms likely to develop in East Anglia both tomorrow and Thursday.

Potential for another round of significant convective activity in central areas on Monday as the next Atlantic low moves in. Again the far SE may largely miss out.

Then from midweek the heat starts to build again in the south.

Plenty of convective activity to look out for over the next few days.

Arcus
24 July 2018 21:30:21

 

Ben Rich was making a big thing about Friday on the 2155 forecast. His charts clearly showed a new frontal system developing in situ across central England during Friday, quite separate from the fronts associated with the low out west.

The potential is there on Friday afternoon and evening for widespread torrential thunderstorms, particularly from the Midlands northwards with some serious amounts of rain across the spine of England which could cause flash flooding. Localised disruption is expected. Central southern areas may see some isolated storms but look likely to miss out on most of the action.

The far east of England and the SE also largely miss out. That said one or two very localised but intense storms likely to develop in East Anglia both tomorrow and Thursday.

Potential for another round of significant convective activity in central areas on Monday as the next Atlantic low moves in. Again the far SE may largely miss out.

Then from midweek the heat starts to build again in the south.

Plenty of convective activity to look out for over the next few days.

Originally Posted by: Global Warming 

Yes I agree - matches what I said in Model Output thread about the daughter shallow low forming (ECM) and advecting the warm air westward..  I saw the same forecast and it looked very similar - but it's all about the timing on these things, and that can change rapidly in the run up with either disturbances not coming to fruition, or fronts/troughs being delayed or advancing more quickly.

 


Ben,

Nr. Easingwold, North Yorkshire

30m asl

24 July 2018 21:47:21

Agreed these things are hard to pin down at this distance.

For example the 18Z ICON shows a rather limp band of rain on Friday across central areas

http://modeles.meteociel.fr/modeles/icon/runs/2018072418/iconeu_uk1-1-69-0.png?24-23

The front becomes more active once it exits into the North Sea

http://modeles.meteociel.fr/modeles/icon/runs/2018072418/iconeu_uk1-1-81-0.png?24-23

Also shows some rather potent frontal rain for western areas on Sunday

http://modeles.meteociel.fr/modeles/icon/runs/2018072418/iconeu_uk1-1-117-0.png?24-23

Could be some welcome rain for some in the next few days.

Sadly the areas in the south and SE that need it most look likely to largely miss out with many seeing no more than 5mm at best

http://modeles.meteociel.fr/modeles/icon/runs/2018072418/iconeu_uk1-25-120-0.png?24-23

Arcus
25 July 2018 10:00:55

After a few runs of relative diffidence, GFS is finally picking upon Friday's potential. Tomorrow afternoon also still has (lower) potential for some isolated storms for some:

 

Thursday PM:

 

Friday PM:


Ben,

Nr. Easingwold, North Yorkshire

30m asl

Arcus
25 July 2018 18:07:28
MetO Auto going for 3 hours of thunderstorms for me tomorrow 15.00 to 18.00, then 9 hours of storms on Friday 10.00 to 19.00. Glad I cleared out all the gutters today (not that I believe the Meto Auto)... šŸ˜‰
Ben,

Nr. Easingwold, North Yorkshire

30m asl

Arcus
26 July 2018 06:17:42
Potential for storms later today is becoming more realistic for some central, eastern and northern parts of England and SE Scotland. MetO may well put a warning on it later this warning as well as tomorrow's warning. The progress of the cold front tomorrow is once again slowed down on the latest runs to Saturday for some eastern areas.
Ben,

Nr. Easingwold, North Yorkshire

30m asl

howham
26 July 2018 09:23:06
Chance of a glancing blow from thunderstorms here overnight? Might be able to see the lightning but not hear the thunder.
Tim A
26 July 2018 12:52:20
Just had a short sharp shower, only lasted 30 seconds but there are lots of grey clouds about.

26.4c


Tim

NW Leeds

187m asl

Ā My PWS 

Super Cell
26 July 2018 13:37:02

Just had a short sharp shower, only lasted 30 seconds but there are lots of grey clouds about.
26.4c

Originally Posted by: Tim A 

It's raining in Gildersome now and the sky is ugly looking!



Farnley/Pudsey Leeds

40m asl

Arcus
26 July 2018 13:47:18

First storm of the day has shot up very quickly between Derby and Nottingham - sferics showing already.


Ben,

Nr. Easingwold, North Yorkshire

30m asl

Crepuscular Ray
26 July 2018 14:23:35
Daughter in Ruddington, south of Nottingham has reported thunder at 1500. (I've trained her well!)
Jerry

Edinburgh, in the frost hollow below Blackford Hill

redmoons
26 July 2018 14:50:42
Seem to be a few lightening flashes south of Cambridge as well, no rain on the radar.
Arcus
26 July 2018 14:54:59
Quite healthy strike rates from those storms in Lincs now.
Ben,

Nr. Easingwold, North Yorkshire

30m asl

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