Convective/Thunderstorm Discussion : Summer/Autumn 2021

teddybones · 08-09-2021 07:05AM

9E6FA434-1EC7-47D8-A354-0602181F47F8.jpeg

interesting sky, clear sky out the back, went out the front with the dogs and saw these cool clouds. Raining now. Very balmy and thundery feeling.

Kermit.de.frog · 08-09-2021 07:11AM

There are storms in this airmass. Might need a bit of sun, some inland or close to land convection but there is potential today and tonight.

Indeed right now a line of thunderstorms sparked off south Clare/Limerick/Kerry.

The focus today is very much in the east (extending further northwest tonight). I think this evening is max chance for developing imports from Wales.

TheMilkyPirate · 08-09-2021 07:47AM

Rumbles of thunder here on the southeastern tip of the Wexford coast

Cooljaybeans · 08-09-2021 07:49AM

Thunder and lightning in wexford now

Kermit.de.frog · 08-09-2021 07:52AM

Not surprising. Instability and storms approaching the southeast coast. A weak trough line but enough to spark activity, moving up the coast through the day. Not always sparking but much more likely to be active as the day goes on, particularly early tonight.

I can tell straight away just looking out the window. The sky in charred here. Potential.

PukkaStukka · 08-09-2021 08:06AM

Sky is misty and featureless looking here in north county Dublin. A whiff of 1986 about it .....

Kermit.de.frog · 08-09-2021 08:15AM

Storms off the west coast are back building now to the extent they may effect west Galway and Mayo.

Cooljaybeans · 08-09-2021 08:24AM

Continuous rumbles of thunder to the east of me up the coast of wexford, sun is back out where I am

monster1 · 08-09-2021 08:45AM

Can here thunder now in Galway city

08-09-2021 08:46AM

I can see the storms to the south over Wexford

Here's some building cb's on the northern flank of the cloud bank

Then slightly to the left looking Southeast into NE wexford,the disturbed cloudbank starts

Danno · 08-09-2021 08:58AM

That Wexford storm looks lively, track through west Carlow, East Kilkenny, west Laois, West Offaly and North Tipp over the next 2hrs to 3hrs likely before moving in over east Galway and southern Mayo later if it holds.

Gaoth Laidir · 08-09-2021 08:59AM

This morning's 06Z sounding from Aberporth, across the water in Wales. The altocumulus sheet is evident from that saturated layer from 550-490 hPa. Also evident is the still very warm but dry lower levels, which would support surface temperatures of 30 °C today in the absence of cloud.

Since then a large cluster of lightning has moved up from Brest and is currently over Plymouth. Cloud bases there are from 8000 ft upwards, and Johnstown Castle from 6000-7000 ft, so it's all elevated convection. Most of the precipitation is evaporating in that dry surface layer, which is why the radar has been painting a much wetter picture than what has been felt on the ground.

monster1 · 08-09-2021 09:00AM

A lot of lightning now in Galway

08-09-2021 09:01AM

Big flash somewhere to the west of Galway rattled my house about 18 seconds later.

JCX BXC · 08-09-2021 09:08AM

Banging away in Galway city, some big cells and interesting sky scapes around.

Mad walking around hearing the near constant thunder, it's like 5 trucks trundling down the next street over.

Big flash about 10mins ago

08-09-2021 09:13AM

Approaching here near Arklow

Hearing thunder

JCX BXC · 08-09-2021 09:20AM

https://www.boards.ie/discussion/comment/117862186#Comment_117862186

Fe*k sake, it went from perfectly dry to the most intense downfall I've ever witnessed in 30 seconds. Lasted about 5 minutes, lots of spot flooding.

I got absolutely soaked in the 20 seconds between the rain starting and me finding somewhere to stand in.

IMG_20210908_101904.jpg

pad199207 · 08-09-2021 09:23AM

Sky this morning over Naas showing plenty of mid level instability

08-09-2021 09:28AM

https://www.boards.ie/discussion/comment/117862186#Comment_117862186

Thats nearer than you'd think

High cloud to cloud lightning,hence the constant thunder but low volume as its maybe 20kms away or more above you

Louder when there's a CG

Oneiric 3 · 08-09-2021 09:34AM

https://www.boards.ie/discussion/comment/117862242#Comment_117862242

Same here. Short little intense bursts that don't last long but drop a lot of rain and all falling form a nicely structured mid-level cloud base:

The odd low frequency boom at times too that sounds like cannons going off under the deep ocean.

08-09-2021 09:35AM

https://www.boards.ie/discussion/comment/117862134#Comment_117862134

Its actually tracked further east than that mainly through wexford

Its reaching me now with so far mainly light rain but big drops and occasional high above us intra cloud rolls of thunder

Danno · 08-09-2021 09:40AM

https://www.boards.ie/discussion/comment/117862329#Comment_117862329

Yeah, I put a jynx on it. Lightning activity has petered out also.

Oneiric 3 · 08-09-2021 09:40AM

https://www.boards.ie/discussion/comment/117862286#Comment_117862286

That cannon effect/gun shot sort of low frequency boom thunder always seems to occur more in the morning time for some reason, at least in my observations.

Oneiric 3 · 08-09-2021 09:46AM

Thunder isn't that frequent here but it has one of most peculiar and unnerving sounds I have ever heard thunder to have. Distant but savage sounding.

08-09-2021 09:49AM

https://www.boards.ie/discussion/comment/117862351#Comment_117862351

Its what we had in the hour long storm here a fortnight ago last Saturday, that was at 7pm

My description was that it was like fighter jets tearing across the sky constantly or an arm of people in the sky shaking sheets of thin

Really high basically

Could be overhead but several or 10s of kilometres away upwards

08-09-2021 10:13AM

2 impressive looking yokes springing up off SW Wales heading NNW

@Kermit.de.frog perhaps you could get out your spectrum analyser...

Danno · 08-09-2021 10:30AM

Plenty of insolation across the SE, South midlands, extending into the MidWest. Temperatures 23c here at present. Some fuel for storms as we approach the midday sun. Bit of a breeze though, so these storms will be moving on through promptly.

Kermit.de.frog · 08-09-2021 10:34AM

https://www.boards.ie/discussion/comment/117862507#Comment_117862507

Convective - quick up shoots. Assuming the image is not a dud there is already lightning.

The problem with eyeing this is it could be land based convection that has drifted to sea. In this case gone over Cornwall and Devon.

Hard to know.

I do know the trough moving in to the Irish Sea is potentially explosive. But we have been here many times...

Oneiric 3 · 08-09-2021 10:36AM

Above any other part of the mainland, the Aran Islands seem to be getting battered as it gets its third wave of thunder and lightning so far this morning.

Would be great to be sitting on the beach in Barna right now listening to those Aran booms.

08-09-2021 10:41AM

https://www.boards.ie/discussion/comment/117862591#Comment_117862591

On the loop,they popped up at sea and met Eireann is recording lightning

They're taking the same route as the effort earlier

Convective/Thunderstorm Discussion : Summer/Autumn 2021

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