Convective / Storm Discussion - 31st July onwards 2013

[Coast]

MetO precip forecast seems keen to deliver some fairly heavy precip later this afternoon, in a linear fashion as described by the issued forecasts above.

 

Yep, NW Extra NMM going with that over a couple of hours, especially over Norfolk and some of EA:

 

 

[staplehurst]

Thunder/lightning? Estofex had us under a level 1, meto had yellow, ukasf had SLGT, Skywarn has us under a warning, so i was atleast expecting a bit of thunder.

 

Ah, the main idea was the potential for a tornado and perhaps a supercell if any decent convection could get going. A classic British low CAPE high shear setup - ingredients were there, just needed to be utilised. Thunder/lightning risk was always fairly low.

[Summer Sun]

Its not often you see a long thin band of heavy rain like is on the radar just now (circled in black)

 

[Tim Bland]

Its not often you see a long thin band of heavy rain like is on the radar just now (circled in black)

It could be this band moving north that results in the nnm charts coast posted above? Could be some storms for a lucky few along this line

[TropicThunder]

Its not often you see a long thin band of heavy rain like is on the radar just now (circled in black)

 

 

Looks like Southampton's taking a pee! 

 

Must admit the skies look quite stormy here.

Edited August 5, 2013 by TropicThunder

[Evening thunder]

Seems like a thunderstorm south of west Cornwall produced 34 sefrics on the ATD recently, but then seems to have died again pretty quick.

[Coast]

Met O severe weather warning still in place for today, mostly for SW areas:

 

 

Issued at: 

1635 on Sun 4 Aug 2013

 

Valid from: 

2000 on Sun 4 Aug 2013

 

Valid to: 

1600 on Mon 5 Aug 2013

 

Rain will turn heavy on Sunday evening, continuing overnight and into Monday before easing away eastwards. Accumulations of 20-40 mm are likely in many parts with the risk of more than 60 mm over parts of SW England. The public are advised to be aware of the risk of surface water flooding. A waving frontal zone will remain slow moving across the area before slowly clearing east on Monday, conditions improving over Wales, NW England and Scotland during the morning, though not till the afternoon further south. Rain could turn thundery at times with some intense downpours within the longer spells of rain. There is the chance that this warning may be upgraded to amber, especially for SW England.

 

 

http://www.metoffice.gov.uk/public/weather/warnings/#?tab=warnings&map=Warnings&zoom=5&lon=-3.50&lat=55.50&fcTime=1375657200&regionName=se

 

[Captain Shortwave]

Its not often you see a long thin band of heavy rain like is on the radar just now (circled in black)

 

looks like a squall line to me, the set up does scream this scenario.

[Chris.R]

Not even a lot of rain here, and not windy at all. Dry now.

[Bobby]

Rather soggy here the past 24 hours

 

 

65mm recorded so far and still lashing it down at the moment, torrential at times.

Edited August 5, 2013 by Bobby

[Coast]

If it carries on with the same intensity and direction, it could bring some high rainfall rates over a brief period to areas of the SE shortly:

 

 

There's a lot going on associated with this front sweeping West to East:

 

 

MCS out West, jet-streak fibre feature to the SW and cyclonic vorticity over the SE.

 

[Bobby]

Crazy torrential rain at the moment, garden starting to flood in places. Satellite signal dead!

The sort of rain and dark skies you'd expect thunder to come out of.

[Methuselah]

If it carries on with the same intensity and direction, it could bring some high rainfall rates over a brief period to areas of the SE shortly:

 

Meteox.png

 

There's a lot going on associated with this front sweeping West to East:

 

 

MCS out West, jet-streak fibre feature to the SW and cyclonic vorticity over the SE.

And, as per bloody usual, the Triangle get sod all!

[Coast]

Met office severe weather warning update:

 

 

Yellow warning of Rain

 

Issued at: 

1119 on Mon 5 Aug 2013

 

Valid from: 

1125 on Mon 5 Aug 2013

 

Valid to: 

2100 on Mon 5 Aug 2013

 

Further rain will affect parts of western England, Wales, northern England and southeast Scotland through today before easing away eastwards. Accumulations of 20-40 mm are likely in many parts with the risk of more than 60 mm over parts of southwest England, Wales and northern England. The public are advised to be aware of the risk of surface water flooding.

A waving frontal zone will remain slow-moving across the area before slowly clearing east later today. Rain could turn thundery at times with some intense downpours within the longer spells of rain.

 

This is an update to the warning issued on Sunday to include more of northeast England and to extend the warning until 2100 this evening. However, it should be noted that the rain is expected to clear Wales and southwest England during this afternoon.

 

 

http://www.metoffice.gov.uk/public/weather/warnings/#?tab=warnings&map=Warnings&zoom=5&lon=-3.50&lat=55.50&fcTime=1375657200&regionName=se

 

[Bobby]

Reports of landslips here in S Wales. Nearly 80mm here now and still pouring with more to come.

[Evening thunder]

Even central/west Devon seems a world away from here, dry all morning with not a spot of rain.

 

That heavy bit in the channel looks like it's going to go east of here instead.

[Coast]

That heavy bit in the channel looks like it's going to go east of here instead.

 

[Chris.R]

Dry and very sunny here for a good while, it's a lovely day now.

[Lynxus]

Quite a nice day here, Odd to think a few mines west its all flooding

[andymusic]

mega heavy downpours and finally a huge clap of thunder!

[StormChaseUK]

A couple of loud 360 rumbles of thunder here in Bridgend.

[Lynxus]

And so it begins...

 

 

[Marcus_surfer]

Pretty heavy downpours on and off here but those rumbles in Bridgend are too Far East for me to hear

[Methuselah]

Pretty heavy downpours on and off here but those rumbles in Bridgend are too Far East for me to hear

Too far west for me! 

[Summer Sun]

The grand total of 5.1mm of rain has fell since the early hours been dry for a couple of hours now and it looks like remaining so for a while yet