Convective/Thunderstorm Discussion : Spring/Summer 2017

JCX BXC

STATUS YELLOW

Rainfall Warning for Galway, Mayo, Clare and Kerry
Thundery rain leading to possible accumulations of 30 to 50mm in these areas.

Issued:Thursday 20 July 2017 07:00
Valid:Thursday 20 July 2017 21:00 to Friday 21 July 2017 21:00

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May be of some interest tomorrow.

diceyd

Sky gone black here in finglas

lolie

thomasj wrote: »

Cool tweet from the UK met office about the fireworks from Tuesday night/Wednesday morning

https://twitter.com/metoffice/status/887591409783648256?s=09

If only that was accurate.
Shows lots of lightning moving up overhead here which did not happen.
Only lightning i seen was faint stuff in the distance over galway.

Psychologeeee

Rumbles in Louth!

pedigree 6

Thunder and heavy rain in Wexford.

Psychologeeee

Okay, maybe its just "rumble" in Louth... Sky is clearing already

Brown Podzol

BBC forecast for Cork tomorrow evening,Friday, showing lightning from 7 to 10. Only checking the BBC forecast with the last month so don't know much about their accuracy or otherwise. Wonder how this will turn out.


http://www.bbc.com/weather/2965140?day=1

George Sunsnow

Quite a few strikes in the south east now
Still sunny and dry here in Arklow but we can see the ominous approaching cloud tops

George Sunsnow

A few strikes south of Gorey
I can hear the thunder
Here's my view of the storm,it's heading directly for me,looking SW

er1983

Anything for Waterford? Clouds coming in here now are really blue black colour and dogs have started barking

George Sunsnow

Overhead thunder now near Arklow

George Sunsnow

er1983 wrote: »

Anything for Waterford? Clouds coming in here now are really blue black colour and dogs have started barking

Yes you could easily
It's near you,a strike in Glenmore

2nd clatter here

pad199207

Decent cells now over Wexford. Particular one near Gorey

DOCARCH

Heavy rain shower just passed through Dublin 16. No sign of any thunder, but amazing cloudscape all round this afternoon, with lots of anvils to be seen.

George Sunsnow

Beautiful forked lightning just now
Wish I had camera for it!

Gaoth Laidir

glightning wrote: »

Yeah, I remember that SIGMET but does that cover part of the English Channel or southern Celtic Sea? Because there were no white cloud tips on the Sat images. Perhaps there were a few small white tops at times?

The EUMETSAT Nowcast site shows up to date cloud top heights and temperatures. The other night it was showing cloud tops of 10,000-11,000 m over Ireland.

http://www.nwcsaf.org/

George Sunsnow

Gaoth Laidir wrote: »

The EUMETSAT Nowcast site shows up to date cloud top heights and temperatures. The other night it was showing cloud tops of 10,000-11,000 m over Ireland.

http://www.nwcsaf.org/

Out of curiosity,what cloud heights did my little belter have here north of Gorey in the past 15 minutes?

pad199207

Rumbles of thunder to my south now

Deatr

I operated a flight from Dubrovnik last night took us an hour to pick our way through the storms over Germany. We were at FL360 and still sitting in the tops. Some of the cloud heights were at FL410. Did get a nice noctilucent display the closer to DUB we got though.

Oneiric 3

glightning wrote: »

This suggests that the cloud tops didn't get very high at all. So certainly not the best outcome considering the heat and humidity we had in place at the time.

Cloud top temps during the height of the storm:



Scale:


I recorded a rain rate of almost 200mm/h during its peak, not something you get everyday from ordinary convective events. Cloud tops may not have been high as over the S of UK, but none the less, we got torrential rain and intense thunder and lightning, so there is something more than cloud height alone at play here. And as far as I can gather, (judging from IR cloud imagery alone so may well be wrong) cloud heights were higher during the passage of the cold front yesterday morning, yet rain rates were lower (51.7mm/h peak) with no thunder and lightning.

dublincelt

Large rumble of thunder following heavy shower just passed over Carlow Town.

Psychologeeee

Heavy rain now in Louth!

pad199207

More thunder in South Kildare

Soccarboy11

No thunder, but heavy rain showers and dark, tallish clouds (not great with weather terms!), definitely look different then the others. Cork City, bishopstown area

Gaoth Laidir

George Sunsnow wrote: »

Out of curiosity,what cloud heights did my little belter have here north of Gorey in the past 15 minutes?

About 7,000 metres (~FL230).

spoonerhead

Large cell approaching just outside Prague, temperature dropped from 29C to 21C in seconds!

PukkaStukka

A friend reported strikes near the East County Meath coast

Simon Gruber Says

Nice anvils down towards Kildare

OldRio

Very loud thunder in Leitrim.
Looks like things are moving further north.
Heavy rain.

pad199207

Plenty of convection in the Low Pressure system moving down from the NW