Convective/storm Discussion Thurs 23>>>>>>>>>

[West Sussex Kate]

Sussex here!! Black sky to my West. Can here a few distant booms of thunder...no rain!

Edited July 24, 2009 by Westsussex1

[MetWX]

Sussex here!! Black sky to my West. Can here a few distance rumbles of thunder...no rain!

It's on it's way WestSussex1, we just had the storm here and it was building all the time, I can hear frequent loud rumbles from it still as it trundles east.

[dallas]

End of this trough (oooh about 30 miles to my S) has really come to life!

Surrey, Sussex and Kent are going to get slammed in the coming hour or two unless it weakens! And I will no doubt see the pitch black skies to my S getting nothing out of it

The tail end is just one white blob, and if it keeps its current track it will go right through my post code

[West Sussex Kate]

It's on it's way WestSussex1, we just had the storm here and it was building all the time, I can hear frequent loud rumbles from it still as it trundles east.

Yes its a very impressive sky!!

[Coast]

Sussex here!! Black sky to my West. Can here a few distant booms of thunder...no rain!

Is it on its way to Burgess Hill then? I do hope so!!

[YokTok]

Huge storm overhead now, lots of CG's and torrential rain.

[West Sussex Kate]

Is it on its way to Burgess Hill then? I do hope so!!

Burgess hill is 25 mins from me! so think its heading your way......

[Coast]

Ohhhhh! Busy busy!

*** NexStorm TRAC Report generated 24/07/2009 15:11:13

Tracking 10 thunderstorms from Worthing

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Thunderstorm ID M-5141 detected 12:05

Storm location bearing 346.5 dgr distance 12 mi

Last recorded activity 15:10

Intensity class Moderate

Intensity trend Weakening

Current strikerate 20/minute

Peak strikerate 37/minute

Total recorded strikes 644

Cloud-Ground strikes 259 - 40.22%

Intracloud strikes 385 - 59.78%

-- Strike type distribution --

Positive Cloud-Ground [+CG] 72 - 11.18%

Negative Cloud-Ground [-CG] 187 - 29.04%

Positive Intracloud [+IC] 227 - 35.25%

Negative Intracloud [-IC] 158 - 24.53%

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

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Thunderstorm ID O-1642 detected 12:53

Storm location bearing 80.0 dgr distance 58 mi

Last recorded activity 15:09

Intensity class Weak

Intensity trend No change

Current strikerate 3/minute

Peak strikerate 5/minute

Total recorded strikes 146

Cloud-Ground strikes 54 - 36.99%

Intracloud strikes 92 - 63.01%

-- Strike type distribution --

Positive Cloud-Ground [+CG] 6 - 4.11%

Negative Cloud-Ground [-CG] 48 - 32.88%

Positive Intracloud [+IC] 61 - 41.78%

Negative Intracloud [-IC] 31 - 21.23%

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

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Thunderstorm ID G-2352 detected 13:05

Storm location bearing 27.9 dgr distance 21 mi

Last recorded activity 15:10

Intensity class Weak

Intensity trend Weakening

Current strikerate 7/minute

Peak strikerate 24/minute

Total recorded strikes 793

Cloud-Ground strikes 361 - 45.52%

Intracloud strikes 432 - 54.48%

-- Strike type distribution --

Positive Cloud-Ground [+CG] 32 - 4.04%

Negative Cloud-Ground [-CG] 329 - 41.49%

Positive Intracloud [+IC] 306 - 38.59%

Negative Intracloud [-IC] 126 - 15.89%

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

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Thunderstorm ID H-5461 detected 13:57

Storm location bearing 151.2 dgr distance 90 mi

Last recorded activity 15:10

Intensity class Weak

Intensity trend No change

Current strikerate 2/minute

Peak strikerate 5/minute

Total recorded strikes 60

Cloud-Ground strikes 18 - 30.00%

Intracloud strikes 42 - 70.00%

-- Strike type distribution --

Positive Cloud-Ground [+CG] 3 - 5.00%

Negative Cloud-Ground [-CG] 15 - 25.00%

Positive Intracloud [+IC] 29 - 48.33%

Negative Intracloud [-IC] 13 - 21.67%

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

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Thunderstorm ID S-1863 detected 14:44

Storm location bearing 93.0 dgr distance 60 mi

Last recorded activity 15:09

Intensity class Weak

Intensity trend No change

Current strikerate 1/minute

Peak strikerate 3/minute

Total recorded strikes 20

Cloud-Ground strikes 9 - 45.00%

Intracloud strikes 11 - 55.00%

-- Strike type distribution --

Positive Cloud-Ground [+CG] 1 - 5.00%

Negative Cloud-Ground [-CG] 8 - 40.00%

Positive Intracloud [+IC] 8 - 40.00%

Negative Intracloud [-IC] 3 - 15.00%

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

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Thunderstorm ID B-1861 detected 14:44

Storm location bearing 53.4 dgr distance 32 mi

Last recorded activity 15:10

Intensity class Weak

Intensity trend No change

Current strikerate 2/minute

Peak strikerate 7/minute

Total recorded strikes 41

Cloud-Ground strikes 8 - 19.51%

Intracloud strikes 33 - 80.49%

-- Strike type distribution --

Positive Cloud-Ground [+CG] 2 - 4.88%

Negative Cloud-Ground [-CG] 6 - 14.63%

Positive Intracloud [+IC] 25 - 60.98%

Negative Intracloud [-IC] 8 - 19.51%

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

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Thunderstorm ID F-982 detected 14:29

Storm location bearing 311.5 dgr distance 46 mi

Last recorded activity 15:10

Intensity class Weak

Intensity trend Weakening

Current strikerate 1/minute

Peak strikerate 7/minute

Total recorded strikes 80

Cloud-Ground strikes 26 - 32.50%

Intracloud strikes 54 - 67.50%

-- Strike type distribution --

Positive Cloud-Ground [+CG] 8 - 10.00%

Negative Cloud-Ground [-CG] 18 - 22.50%

Positive Intracloud [+IC] 24 - 30.00%

Negative Intracloud [-IC] 30 - 37.50%

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

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Thunderstorm ID O-694 detected 14:24

Storm location bearing 165.2 dgr distance 74 mi

Last recorded activity 15:11

Intensity class Weak

Intensity trend No change

Current strikerate 2/minute

Peak strikerate 9/minute

Total recorded strikes 79

Cloud-Ground strikes 27 - 34.18%

Intracloud strikes 52 - 65.82%

-- Strike type distribution --

Positive Cloud-Ground [+CG] 5 - 6.33%

Negative Cloud-Ground [-CG] 22 - 27.85%

Positive Intracloud [+IC] 35 - 44.30%

Negative Intracloud [-IC] 17 - 21.52%

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

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Thunderstorm ID Y-2659 detected 14:57

Storm location bearing 124.6 dgr distance 174 mi

Last recorded activity 15:08

Intensity class Weak

Intensity trend No change

Current strikerate 2/minute

Peak strikerate 3/minute

Total recorded strikes 16

Cloud-Ground strikes 4 - 25.00%

Intracloud strikes 12 - 75.00%

-- Strike type distribution --

Positive Cloud-Ground [+CG] 0 - 0.00%

Negative Cloud-Ground [-CG] 4 - 25.00%

Positive Intracloud [+IC] 9 - 56.25%

Negative Intracloud [-IC] 3 - 18.75%

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

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Thunderstorm ID J-1774 detected 14:42

Storm location bearing 0.8 dgr distance 13 mi

Last recorded activity 15:08

Intensity class Weak

Intensity trend Intensifying

Current strikerate 2/minute

Peak strikerate 9/minute

Total recorded strikes 95

Cloud-Ground strikes 51 - 53.68%

Intracloud strikes 44 - 46.32%

-- Strike type distribution --

Positive Cloud-Ground [+CG] 11 - 11.58%

Negative Cloud-Ground [-CG] 40 - 42.11%

Positive Intracloud [+IC] 22 - 23.16%

Negative Intracloud [-IC] 22 - 23.16%

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

*** TRAC Report end - NexStorm V1.6.0.2553:PCI

[West Sussex Kate]

Storms going past me on the horizon, not coming here, looks like its heading, north!

[Thundery wintry showers]

Strangely nothing showing up on N-W's lightning detector at the moment, but a line of showers passing just south and east of Norwich has taken off into a thunderstorm- frequent rumbles and I somewhat fortuitously caught 5 flashes of lightning on camera! (Using video mode of course)

[Harry]

As I am about to watch that line run along my S - it hurts! Even more so knowing it will slam my home area in about the next two hours

[SnowJoke]

New storms going up near MK, one to the west one to the NE, can hear thunder from both now.

[West Sussex Kate]

I saw loads of lightning on the horizon, but it didn't come here, good luck to everyone else - fingers crossed might get something good later.

bye for now xx

[tcc]

Can see lightning over Redhill way and the north of the airport. Just a long train of dark cloud from north east to my north west! No sure if any of them are going to hit here but it's nice to view them!

[tornadomanuk]

Well the showers down here are certainly weakening now and becoming well scattered. Good fun this morning in Taunton. At around 11:30 in Homebase - the evil sky opened its doors to let the monsoon type rain fall. Its bliming loud when torrential rain and small hail fall onto a metal roof! Roads were awash with localised flooding too.

You know its going to be torrential when the sky stays black/purple even when the sun goes 'in'.

Slowly settling down here now and I expect that to spread slowly Eastwards.

[kerensa]

we are having a torrential downpour here at mo, cant hear any thunder but the rain is really loud!!!

[YokTok]

Storm is just moving away now, best one so far this year.

[A.J]

Tbh, it doesn't look like you'll be missing much judging by Radar, has it got any sferics, this line of showers? Just that the NW lightning detector is stuck again. To me, it looks like you'll be missing thundery showers.

Yep, I posted about the lack of sferics on the NW Radar earlier, wondering if the trough was dying out, but evidently not!...IOW detector is tracking 4 storms in the SE of England

[Harry]

Sky is black to the SE - so painful!

I can confirm - this black sky just lit up like Hiroshima!!!!

Edited July 24, 2009 by Harry

[A.J]

Another line of showers with intense echoes now drifting SE down through Cheshire into North Staffs just about to hit stoke, also more discrete cells firing up to the west of me, round 3 perhaps?..

[dallas]

It looks like its taken a jog south on the radar, will wait maybe change

[sunny starry skies]

yet another afternoon torrential downpour here. Really heavy rain, no thunder yet (unless you count the rumbling from the drains outside my office window ), think we're up to 9 or 10 consecutive days of this now

sss

[chrisbell-nottheweatherman]

Back now - late luch and then distracted by other matters.

Fairly impressive storm passed to the SE of us - first thunder heard at 14:27, heavy rain and some bright lightning flashes observed (from my vantage point I was unable to see whether they were CG or IC. A lot of turbulent clouds still hanging around and the occasional faint rumble heard still.

[Godot]

Yep, I posted about the lack of sferics on the NW Radar earlier

None of the 4 I saw here this morning showed up either.

[Severe Blizzard]

Thunder continuing to south and S.E. from slow moving Cb (Redhill direction).

Third lot of thunder this month at Guildford.

First rumble was at 12:46 pm and increased after 1 pm as the Cb cell moved E.N.E. over the Guildford area. Although raining steadily, there was a very heavy burst at 1:15 ~ 1:17 pm. Thunder quickly became infrequent after 1:20 pm then there was renewed activity to the west at 2:06 pm with especially loud booms at 2:29 pm and 2:33 pm. Rumbles continued periodically to 3:14 pm. No lightning was seen in these two outbreaks. There were short heavy showers with the heaviest rain at 2:15 pm. About 9 mm rain has fallen today, 7 mm from these thundery showers.

2 mm had fallen before Noon in morning showers where no thunder was heard. I cycled from Guildford to the Cranleigh area and was caught in a heavy prolonged shower at 7:10 am to 7:55 am (Winterfold Hill) and 10:10 am to 11:10 am, very heavy rain at 10:48 am to 10:55 am (Run Common). More than 2 mm fell in these showers.

There was an impressive Cb anvil to the east on leaving at 4:30 am. Met Office radar showed this to be over North Kent at the time. A developing Cb to the south and S.W. seemed to be producing rain over the Haselmere area as seen from Pewley Hill at 5:10 am. This area of showers had a clearly defined edge which seemed to be over the Albury and Blackheath area just before passing thorugh, where dry ground changed to wet ferns and then puddles in the road about 100 metres further on. A second pulse from this development brought the soaking just after 7 am. I may upload the cloud photos when sorted the camera out.