Convective/Thunderstorm Discussion : Summer/Autumn 2021

PukkaStukka · 23-07-2021 10:45am

https://boards.ie/discussion/comment/117650428#Comment_117650428

That makes me sad realising I am missing something epic by a few miles 🙄

23-07-2021 11:09am

Looking due south from Arklow presently

Plenty convection building

23-07-2021 11:14am

Lovely weather just south of Tuam..

er1983 · 23-07-2021 11:34am

Will we see anything in Waterford? My head is splitting since I woke up. Sky here has clouds like the few posts above

23-07-2021 12:09pm

Looking towards the Wicklow mountains from Arklow

Gaoth Laidir · 23-07-2021 12:12pm

https://boards.ie/discussion/comment/117650893#Comment_117650893

Nothing mentioned on the latest TAF for Waterford (valid to 10 pm). For the other airports, a slight chance of thunderstorms is mentioned this evening for Cork, Shannon and Knock, with showers at Kerry and Sligo.

23-07-2021 12:13pm

Literally 3 mins after the other photo

Same cloud

Gaoth Laidir · 23-07-2021 12:16pm

https://boards.ie/discussion/comment/117651100#Comment_117651100

I'm in Sardinia now and I regularly see that same picture inland in the afternoons. From zero to hero in about 10-15 minutes. Very complex combination of terrain and sea breeze fronts, but 9 out of 10 times these clouds form in the same location, like clockwork.

23-07-2021 1:00pm

https://boards.ie/discussion/comment/117651114#Comment_117651114

They're showing up bright white on the latent sat pic via met E

pad199207 · 23-07-2021 1:03pm

Thunder heard in Kildare

Meteorite58 · 23-07-2021 1:09pm

No Cb's showing up yet on the last ob's but can see Marine Layers cloud bubbling up😁 I do believe it is sparking now.

Can see the size of the cells bubbling up off the coast of Brittany.

fryup · 23-07-2021 1:11pm

^^^ so what time hitting irish shores?

Storm 10 · 23-07-2021 1:15pm

In Galway and can see the cloud building over the Bay had a look at them thought binoculars and the tops are twisting and turning

23-07-2021 1:21pm

https://boards.ie/discussion/comment/117651114#Comment_117651114

Looks like they've become super hero

Same cbs I was looking at have now sparked in West wicklow

Meteorite58 · 23-07-2021 1:27pm

https://boards.ie/discussion/comment/117651434#Comment_117651434

The storm off the coast of France wont make it this far, the storms that might occur over Ireland will form over the land in the afternoon, probably peaking later in the afternoon / early evening in the areas highlighted in the posts above. The chart below might be an indication where storms would mostly break out , maybe the strongest towards Clare /Galway / Offaly /Tipp maybe Laois too will see some action but would think peaking towards the W later

xx_model-en-318-0_modfrahd_2021072306_15_949_157 (1).png

coffee to go · 23-07-2021 1:28pm

Constant rolling thunder here in S Kildare for past 15 mins

12B8404A-1C40-473B-BE96-19F2FEB5A432.jpeg

Weather BOFH · 23-07-2021 1:33pm

https://boards.ie/discussion/comment/117651536#Comment_117651536

Same here, seems to be towards Moone/Timolin direction.

Meteorite58 · 23-07-2021 1:33pm

Heavy rain being produced from the first storm of the day.

Sparks near Kilkenny now too.

NETWEATHER

Meteorite58 · 23-07-2021 1:35pm

Met Eireann

Status Yellow - Thunderstorm and rain warning for Ireland

Met Éireann Weather Warning
Thunderstorms in places this afternoon and evening with lightning, hail and heavy downpours resulting in localised flooding and hazardous driving conditions.
Counties most at risk are Wicklow, Kildare, Laois, Offaly, Tipperary, Clare, Galway, Mayo and Roscommon.
Valid: 13:13 Friday 23/07/2021 to 20:00 Friday 23/07/2021
Issued: 13:13 Friday 23/07/2021

Meteorite58 · 23-07-2021 1:44pm

Convection getting going, could be quite an active day , storm near Carlow /Portlaois firing away .

Reports of hailstone from tabby aspreme on the current weather thread 'Thunder, rain hailstones and lightning, here in south Kildare for the last 30 minutes, the thunder is almost continous'.

Weather BOFH · 23-07-2021 1:46pm

View of the storm to my north, towards Athy. Constant rumbles the last 30 minutes now or so.

Gaoth Laidir · 23-07-2021 1:47pm

12Z Valentia sounding shows no CAPE for that area due to a dewpoint of only 10°C, however dewpoints further north more widely in the mid-high teens should provide >1000 J/kg of SBCAPE this afternoon.

sounding_03953_2021072312_3ea2d92b0e78411a6bb0effcd8a944e8.png

The 12Z sounding from Camborne (SW England) shows a much more stable picture, with elevated convection at around 600 hPa (hence the Ac floccus reported by Marine Layer earlier). That cell over Kildare was formed by upslope flow over the Wicklow mountains, so expect that to be the trigger for cells in other areas.

pad199207 · 23-07-2021 1:52pm

Constant thunder in Kildare the last while

Supercell · 23-07-2021 1:54pm

Clouds bubbling up near here in Athenry, sky looking thundery. Hoping for fireworks later.

DOCARCH · 23-07-2021 2:12pm

Just drove up the N/M11 and could see lots of towering cumulus developing to the west.

Gonzo · 23-07-2021 2:16pm

This mornings GFS 6z already toying about with more heat towards the end of it's run in August. This is a hot outlier but this current heatwave also began as an outlier in the models. The GFS kept adding and dropping the heatwave up to 3 weeks prior to when it started. Even on the first day of this heatwave, it looked like a 3 to 5 day event at most and we're getting almost 10 days out of it.

CirrusBusiness · 23-07-2021 2:18pm

I'm up in south Galway on business and there are lots of towering cumulus, one in particular looks close to sparking in the Gort direction. A very interesting day ahead for storms.

23-07-2021 2:19pm

https://boards.ie/discussion/comment/117651870#Comment_117651870

You should start to look east and southeast on the trip home !

Seems your new front window might get a rattle at some stage

DOCARCH · 23-07-2021 2:23pm

https://boards.ie/discussion/comment/117651942#Comment_117651942

Just back after a couple of days in Cork. Quite misty out front, over Irish Sea. Visibility only around 1km.

23-07-2021 2:25pm

Looks like something is firing up near Lough Derg. I'm in Tuam at the moment just about to head home to Limerick. Hopefully I see something exciting.

Weather BOFH · 23-07-2021 2:36pm

Constant rumbles again here in South Kildare the last 20 minutes or so, this time off to the west towards Abbeyleix/Durrow.

RobertKK · 23-07-2021 2:38pm

Can hear all the thunder and see all the structure of the clouds here in Kilkenny.

CirrusBusiness · 23-07-2021 2:38pm

Constant thunder rumbling south Galway

Chicken Run · 23-07-2021 2:38pm

Yep - constant rumbles of thunder now around Lough Graney (near Gort, S. Galway)

Supercell · 23-07-2021 2:39pm

Frequent roles of distant thunder here near Athenry

Supercell · 23-07-2021 2:43pm

Unbelievable how fast the clouds are bubbling up, haven't seen that since my last time in Germany. Thunder is pretty much constant and getting louder, excited!

redsteveireland · 23-07-2021 2:44pm

I can see some big convection near by, if only the person beside me would turn off the car I might hear something.

Danno · 23-07-2021 2:44pm

Constantly booming here just north of Durrow... 28c also!

Storm 10 · 23-07-2021 2:46pm

Thunder rumbling Galway City very dark to South

Gaoth Laidir · 23-07-2021 2:52pm

The latest SIGMETs have those Biscay storms in a weakening phase at the moment. Probably not much to be had from them, so it's all eyes on the homegrown stuff.

EGGX SIGMET 07 VALID 231330/231530 EGRR- EGGX SHANWICK FIR EMBD TS OBS WI N4852 W00823 - N4846 W00953 - N5004 W00956 - N5006 W00810 - N4852 W00823 TOP FL300 STNR WKN=

CirrusBusiness · 23-07-2021 2:54pm

Gaoth Laidir · 23-07-2021 2:58pm

Woooosh!

dexter647 · 23-07-2021 3:05pm

The best thunder and lightning in many a year in my part of south west Laois. Constant booms and fork lightning everywhere with torrential rain and hail...Loving it😁

Gaoth Laidir · 23-07-2021 3:05pm

A new SIGMET has popped up for those storms over Ireland. Tops at 37,000 ft, which is very high for Ireland.

EISN SIGMET 01 VALID 231345/231545 EINN- EISN SHANNON FIR FRQ TSGR FCST WI N5310 W00700 - N5245 W00700 - N5245 W00930 - N5315 W00945 - N5310 W00700 TOP FL370 MOV WNW 10KT NC=

Shannon Airport expecting thunderstorms imminently.

METAR EINN 231400Z 14008KT 9999 FEW035CB 28/16 Q1013 TEMPO 3000 TSRA=

Calahonda52 · 23-07-2021 3:08pm

Just had a good blast see in nenagh

tromtipp · 23-07-2021 3:09pm

Rumbling noises round the Lough Derg side of the Arra mountains for the last half hour, now a little light rain. still sunny, hot and humid, but clouds converging.