Convective/Thunderstorm Discussion Spring/Summer 2024

.Donegal.

Having issue posting tweets

Dan Harris a UK Met office meteorologist just tweeted this

Although in all likelihood hail contaminated, a stationary storm over NW #Donegal produced an estimated >100mm of rain in 3 hours on my integrated radar output, before slowly backbuilding to the SE.

Sadly no gauges (either public or private) that I could find to verify.

Ros4Sam24

In North Ros sky is scary dark.. downpour imminent

Dazler97

This is to the west of me 20km away and growing in height

miamee

Just back from supermarket trip in Sligo, drove through a heavy downpour on the way but home village is still dry as a bone with some thunder and lightning now. This is out in front of the house facing towards south/se Sligo (ish), the worst of it is behind me

pauldry

Yikes. Huge Lightning flash n POURING Sligo

pauldry

Now

squarecircles

THUNDERSTORM WATCH - MON 20 MAY 2024

Issued 2024-05-20 09:47:51
Valid: 20/05/2024 1000 - 21/05/2024 0600

Forecast Details

Quite a complex upper and surface pattern over the next 24 hours, with an upper low over western France slowly drifting north while an upper level high over Scandinavia strengthens – this will serve to strength the cyclonic flow across central Europe into Tuesday. But for Monday, a generally slack pressure pattern prevails – which will encourage breeze convergence zones to set up – particularly across western Rep of Ireland along with western coastal areas of mainland UK. Surface airmass will be most moist across the island of Ireland, where dew points are forecast to reach 15-16C, this will yield around 500-1000 j/kg CAPE this afternoon with surface heating. This instability and the trigger of lift created by breeze convergence will support the development of heavy showers and some thunderstorms over the Rep. of Ireland and perhaps into western N. Ireland. There is a risk of localised flash-flooding along with hail where storms pass.

Elsewhere, airmass of mainland UK won’t be so moist as across Ireland, nevertheless, surface breeze convergence just inland across western and southern coastal areas could trigger some isolated heavy showers and perhaps a thunderstorm or too. Tonight, an area of mid-level instability is forecast to cross the North Sea from Netherlands / N Germany and spread across E England on the nose of an elevated warm moist plume pulled northwest and lifted through differential thermal advection, as upper flow strengthens – bringing some elevated heavy showers and perhaps isolated thunderstorms overnight.

rovers_runner

Bang in the middle of this south of Sligo town.

Not a drop of rain yet, lightening for the last hour and a half, pretty much constant. Unrale.

pauldry

Wev had 14mmof rain in past 30 minutes in Sligo town.

Dazler97

It's just to my west can hear thunder ⛈️ no rain yet

kkontour

Coolaney, Sligo. Been wild here for the last few hours. Getting quiet now. Some serious rattles overhead. Made the house shake. This was taken from an iPhone video.

Dazler97

Have a flash of lightning 🌩 now rain has started

pauldry

16.5mm of rain in 1 hour still raining but lighter

Banarol

Re

Banarol

They were added after the fact, Met Eireann only decided to add them after a 2hr hammering, I’m talking about Offaly and Westmeath, the quote button isn’t working

pauldry

Strandhill had nearly 25mm in an hour but it was raining there since after 6 so have to check that.

Dazler97

Had a few flashes of lightning 🌩 but heavy rain which was well needed

Oscar Bravo

Sligo Airport reporting a Thunderstorm at 7.30 and 8pm. Coastguard helicopter Rescue 118 was out to Croagh Patrick on a tasking and is heading to Shannon now until the weather passes at Sligo

Metar

EISG 201900Z 10006KT 6000 -TSRA FEW013 BKN019 OVC030 14/// Q1013

EISG 201830Z VRB03KT 3100 TSRA BKN017 OVC023 14/// Q1013

appledrop

That's mad all the thunder and rain, still lovely here in NCD!

It might skip us altogether.

highdef

https://www.boards.ie/discussion/comment/122162606#Comment_122162606

Stayed dry and it's still calm and sunny about 10km southeast of longford town.

Beautiful evening.

squonk

Fog is starting to roll in off the coast here in North Clare

Storm 10

https://www.boards.ie/discussion/comment/122162639#Comment_122162639

Lifted from Galway Hospital after tasking from Croke Patrick headed for Shannon for fuel but looking at Sligo weather I guess he will wait till it clears, Air Corps 112 was into Galway as well and held off returning to base due weather in Athlone

Dazler97

Think the short lived thunderstorm is over but it has gotten cooler was 21c now down to 15c ,wonder if that's all now or will we see some more flashes , I love thunderstorms but mostly at night, beggers can't be choosers though 😀

JCX BXC

Big thunderstorm kicking off in Bundoran now I see. Really getting hammered in Sligo/Donegal today.

pureza

Took this of what must have been the roof of one of the midlands storms as seen from all the way over here near Arklow 😱 around 6pm

Some height on it ! These homegrown storms are as good as Florida or southeast Aisa

Ros4Sam24

Torrential downpours in North Ros fairly local but could have dropped 20mm in a flash in spots

pauldry

Final totals I think from Sligo and Strandhill

Sligo 18.9mm

Strandhiĺl 28.8mm

Oscar Bravo

Tomorrow could be interesting

Meteorite58

Passage of a shortwave trough tomorrow and associated upper trough, surface winds light and variable setting up convergence zones again, temps into the high teens or touching 20C, high Dps into the mid teens, plenty of moisture in the atmosphere, upper shear lighter tomorrow. Slow moving convection and thunderstorms with locally very heavy rain or hail, could get some isolated storms through the night and early tomorrow morning, could see widespread thunderstorms breaking out early afternoon over much of Ireland probably more so away from the SW, and W.

Meteorite58

More pictures of the reported funnel or tornado today near Derry.

https://twitter.com/i/status/1792591229776969765