Convective/Thunderstorm Discussion: Autumn/Winter 2016-17

JCX BXC · 01-09-2016 12:34pm #1

Lightning in west clare, loud bangs with torrential rain.

Trogdor · 01-09-2016 12:41pm

Carnacalla wrote: »

Lightening in west clare, loud bangs with torrential rain.

Can confirm also, down in Kilkee at the moment and there were a good few flashes and bangs. Lost power briefly as well.

Iancar29 · 02-09-2016 12:21pm

One to watch for tomorrow evening if the preceding frontal system clears well enough.

Also some strong shear in place so could line out into a shelf cloud type system like the north had last week.

Jpmarn · 02-09-2016 12:56pm

Natural fireworks for Electric Picnic anyone?

Meteorite58 · 02-09-2016 7:40pm

Could make for an interesting day weather watching with quite a mix of weather across the country.

02-09-2016 9:15pm

Looks like another Autumn weather system ? wind and rain , nothing special I'd say.

Meteorite58 · 02-09-2016 10:27pm

Day 2 Convective Outlook
VALID 06:00 UTC Sat 03 Sep 2016 - 05:59 UTC Sun 04 Sep 2016

ISSUED 20:34 UTC Fri 02 Sep 2016

ISSUED BY: Chris

A complex low pressure and associated fronts will cross southern Britain during Saturday bringing heavy rain to places and the potential of some strong gusts to coastal areas in Wales and SW England. Some embedded convection cant be ruled out in the heavy rain as it moves through, but lightning seems unlikely. Once its cleared to the east later in the afternoon and into the evening a highly sheared (40-50kts DLS) and weakly unstable (200 j/kg CAPE) airmass will overspread southern Britain. During this time isolated fast moving sharp showers or a few thunderstorms will be possible. Narrow lines of more intense convection may develop through the evening and first part of the night in a zone from southern Ireland, across north Wales, Liverpool Bay and over to the Humber estuary. Given the shear in this zone a few weak tornadoes cannot be ruled out.

Meteorite58 · 03-09-2016 11:26am

18.5C here near Tralee already with some clear patches developing letting sunshine through, humid. So I wonder is the general SE area most likely to get the most conducive conditions for activity today given that it is in an area with the most wind sheer and with the highest lifted Index reading or is it more likely for a wider distribution of some activity if favorable conditions materializes ?

Some early morning sferics off the W coast and a couple of recent ones in the last couple of hours...

Iancar29 · 03-09-2016 11:37am

Yeah it'll be interesting to see as even though the best instability and shear is there in the SE , the PPN seems to be more northwards... If its up this way ill be out keeping an eye on it

Makapakka · 03-09-2016 12:43pm

Absolutely horrible in Dublin5! Love it :P

Iancar29 · 03-09-2016 1:05pm

This is the area of interest.

Oscar Bravo · 03-09-2016 2:16pm

An updated forecast for Knock airport is now forecasting thunderstorms between 4pm and 6pm,with Dublin airport forecasting them between 6pm and 8pm

km79 · 03-09-2016 2:18pm

Some potent looking cells close to moving ashore west of galway/mayo
Hope they keeping tracking north as they well drop a LOT of rain
One of has a white dot in the middle !

Oscar Bravo · 03-09-2016 3:18pm

Very black out towards croagh Patrick now, very heavy showers on the way

Storm 10 · 03-09-2016 3:45pm

Gone very dark to the West of Galway City now, waiting !!!

Meteorite58 · 03-09-2016 3:51pm

Sparks off the SE coast , seems to be heading for Wales though.

Storm 10 · 03-09-2016 3:59pm

Damp squib very heavy rain but no sparks

squarecircles · 03-09-2016 4:02pm

Thunderstorm now in louisburgh co mayo

sunbeam · 03-09-2016 4:02pm

Very dark here in Achill with rumbles in the distance. Rain is just starting.

AirBiscuit · 03-09-2016 4:13pm

Had a clap of thunder that rattled the windows near Achill

km79 · 03-09-2016 4:37pm

The ominous looking squall line whipped through east Galway without much rain
Just escaped the worst of it thankfully

Iancar29 · 03-09-2016 4:53pm

km79 wrote: »

The ominous looking squall line whipped through east Galway without much rain
Just escaped the worst of it thankfully

Did it have any photogenic structure to it?

km79 · 03-09-2016 4:58pm

Iancar29 wrote: »

Did it have any photogenic structure to it?

Not really I think we got the "skinny" bit in the middle so not much to see
I could make out the actually cloud bringing the rain . It was distinct from the wall of cloud around the rest of the sky.
There was a tiny bit of a "tail" on it which was quite cool
Moved through quick

Oscar Bravo · 03-09-2016 5:03pm

recent strike near mountbellew

Oscar Bravo · 03-09-2016 5:03pm

torrential rain/spot flooding in Castlebar

Oscar Bravo · 03-09-2016 5:09pm

Whole load of new strikes down towards Achill

Oscar Bravo · 03-09-2016 5:26pm

Thunderstorm down towards Belmullet

Darwin · 03-09-2016 5:34pm

Squall line just passed though here (west Laois), very intense rain and extremely gusty wind but no lightning. Lasted all of 3 minutes!

Oneiric 3 · 03-09-2016 5:41pm

Very intense rain in Tuam earlier with flash flooding. Can just about make out an anvil to my north but clouds closing in rapidly again.

Oneiric 3 · 03-09-2016 5:50pm

And here we go again. Heavens have just opened with a rainfall rate of 103mm/ph.

robclay26 · 03-09-2016 5:59pm

Flash lightning 18:55 and 3 rumbles of thunder since. Delvin co Westmeath

Bsal · 03-09-2016 6:21pm

I Can't see the cells to the west of Dublin due to the low cloud base

PauloMN · 03-09-2016 6:22pm

Lots of flashes and thunder in Trim.

Bsal · 03-09-2016 6:25pm

Rock Lesnar · 03-09-2016 6:27pm

Thunder and Lightening overhead here in north meath now, no rain with it yet

03-09-2016 6:28pm

Is there a low pressure area developing over the west? The line of showers appears to be bending back in on itself west of Mayo on the Met E radar.

Rock Lesnar · 03-09-2016 6:33pm

Its just opened the heavens here

Meteorite58 · 03-09-2016 6:33pm

Deleted User wrote: »

Is there a low pressure area developing over the west? The line of showers appears to be bending back in on itself west of Mayo on the Met E radar.