Thunderstorm/Convective Watch: Summer 2010

M.T. Cranium

It's almost like a tropical storm formed southeast of Wexford and headed north into the Irish Sea, and as a result winds are going to back from NE to NW then W and increase to about 30-45 mph in some coastal sections of Wicklow and Dublin next 2-3 hours as the small low heads north towards Down. Expect the thunder and lightning to continue sporadically in the sort of "eyewall" feature of this storm as well as in the next ring out in the circulation around it. (this of course is an analogue, structurally it's not quite a tropical storm, but winds over Wales and southwest England on the forward side have been gusting as high as 60 knots.)

The effects on the weather over large sections of Ireland further west and northwest will be indirect, just pulling in a 15-30 mph flow from the WNW overnight. The upper low appears to have swung around to a position just south of Valentia heading northeast. It was the energy from this rather deep upper low that forced all these other things to happen, so give it a clap as it drifts by overnight. Or maybe it will give you a clap (of thunder) because near that upper circulation there could be the odd weak thundershower in the hangback feature from the surface low.

Certainly an interesting day and night, thanks to everyone who posted obs, it was very helpful in tracking the developments.

Iancar29

It's gettin closer!
Another flash and clap!

highdef

Baldoyle, D 13.....Lightning followed by a loud crash of thunder about 3 seconds later. Indoors so not sure where it came from....00:28

darkman2

Massive flash and rumble just now.

plein de force

few minutes ago got a huge flash and a huge long lasting rumble, hope for some more!

lord lucan

Got some rumbles but no lightning.:(

Ghost Train

Heard it too (south dublin), was surprised how long it went on for, and how theres only been the one instance of it

Mr Benevolent

Yep D13 here, lightning was about a km away out to sea.

lord lucan

Feck it,sleep can wait,i'm staying up a bit later just in case!:D

Elmer Blooker

plein de force wrote: »

few minutes ago got a huge flash and a huge long lasting rumble, hope for some more!

It was a long lasting rumble wasn't it, it seem to go on for ages.
I think we're in for thundery rain rather than thunderstorms tonight

Redsunset

darkman2 wrote: »

Massive flash and rumble just now.

Yep folks heres your new flash (WHITE ONE IN IRISH SEA)

IvySlayer

Is it coming back towards Dublin? :eek:

Elmo5

No fair, was in the O2 at cirque du soleil and missed it! no rumbles to be heard in Celbridge, hopefully a few saved for me!

delw

yeah that was some flash&bang of thunder ,MT has got it right so far so lets hope ders more to come

Stevek101

redsunset is that radar freely available?

Redsunset

posted it earlier too

http://www.blitzortung.org/Webpages/index.php?lang=en&page=1&subpage_3=3

snaps

No its going to Coleraine......LOL!!!!

Stevek101

redsunset wrote: »

posted it earlier too

http://www.blitzortung.org/Webpages/index.php?lang=en&page=1&subpage_3=3

Thanks, I must of missed it.

delw

snaps wrote: »

No its going to Coleraine......LOL!!!!

hpe owen's not asleep&misses it :eek:

lord lucan

All gone quiet now(apart from the lashing rain!),think i'll pack it in for tonight. Great to see some action though.:)

M.T. Cranium

23z obs for Aberdaron, Wales ... winds S 48 mph gusting to 72 mph :eek:

as of 00z (01h daylight time) the low appears to be about 987 mbs 30 miles east of Dublin heading almost due north.

there may be a bit more lightning in Dublin but would now expect the reports to come in from further north mostly.

delw

raining heavy &winds picked up but no more thunder&lighting (at moment)

Deep Easterly

Has turned into quite a wet night here now with heavy driving rain. 14.0mm/ph rain rat currently with an increasing and whistling NNW wind.

Deep Easterly

Top five wettest stations in the 24 hr period up to 1.00am according to Ogimet:

Johnstown Castle: 31.2mm
Mullingar: 24.0mm
Claremorris: 15.8mm
Knock: 15.0mm
Gurteen: 14.8mm.


Looks like summer is in full swing!

M.T. Cranium

0100h (00z) obs for Aberdaron, Wales is SSW 60 mph gusting 84 mph.

okay, granted they are at the end of a long point of land in the middle of the Irish Sea but that is quite some wind for July (non-convective).

RobAMerc

I was told Bristol airport was closed last night due to bad weather - must have something to do with the winds MT Cranium was on about ?

VeVeX

Its quite sunny and warm here in Blanchardstown at the moment.

Keith

A lot of sheet lightning here last night with nothing much audible after the first half hour except for one ot two low long muffled bangs.
From about 10pm untill 1am I'd say before my eyelids defeated me.

Twas a very mild mannered affair apart from the initial half hour or so.
Very heavy rain throughout and through the night.
As I'm not recording,I'm not sure how much.

torrentum

Deleted User wrote: »

A lot of sheet lightning here last night with nothing much audible after the first half hour except for one ot two low long muffled bangs.
From about 10pm untill 1am I'd say before my eyelids defeated me.

Twas a very mild mannered affair apart from the initial half hour or so.
Very heavy rain throughout and through the night.
As I'm not recording,I'm not sure how much.

Almost the same scenario as me Black Briar. Lightning was strong to my SE at 10pm, bit it was still relatively bright then. By the time it got dark the lightning was mostly sheet lightning, and very faint with almost inaudible thunder if any. Rain was very heavy and the wind strengthened noticeably after 11.30pm

owenc

VeVeX wrote: »

Its quite sunny and warm here in Blanchardstown at the moment.

Keith

Well its quite cold here at 10c! Brr!