Convective/Thunderstorm Discussion Spring /Summer 2025

Meteorite58

https://www.boards.ie/discussion/comment/123654295#Comment_123654295

Looks quite likely , huge rainfall totals in the next 24hrs, much of it overnight into early morning.

Nice convergence zone aiding lift this evening.

So far today.

Elmer Blooker

above post: I’ve no idea why lightning just doesn’t happen over the Irish Sea. There has to be some reason? baffling!

Reckless Abandonment

Uk met gone amber(rain) for parts of Northern Ireland. They don't do that to often.

Dazler97

Eastern northern Ireland has gone into an orange warning

Meteorite58

https://www.boards.ie/discussion/comment/123654368#Comment_123654368

The Irish sea often sees imports from the UK in the right set up especially moving across from Wales where they have powered up over the warm land airmass and get a bit of lift over the Welsh Mountains, more often see storms in the Irish sea in winter when the seas are still relatively mild and plenty of cold air aloft moving in from the NE or continental Europe creating the instability. In the South often it is associated with warm plumes coming up from Spain /Southern Europe. The West and NW often more associated with the long fetch of cold airmass over relatively warm seas in Winter and during other months also. Often along the West would think there is more dynamics at play from LP systems and upper troughs / LPs and winds are more free to aid lift. Storms coming in from the West often dissipates before moving too far inland but sometimes peaks inland depending on the timing with diurnal heating. I think there is more thunderstorm activity in general in Winter along the W, NW associated with cold NW'lys especially after frontal systems.

tromtipp

Thunder North Tipp, vicinity of L Derg/Nenagh.

sumtings

Lashing in Limerick, looking like we could be under this squall line for a while the way it's moving. Could be localised flooding the way it's moving on the radar

gipi

https://www.boards.ie/discussion/comment/123654450#Comment_123654450

That's just the fans coming home from Croker....😄

Oscar Bravo

Status Orange - Rain and thunderstorm warning for Dublin, Louth and Meath

Met Éireann Weather Warning

Persistent and heavy rain with a chance of thunderstorms.

Impacts:
• Widespread surface flooding
• Very difficult travelling conditions
• Lightning damage
• Very poor visibility

Valid: 00:00 Monday 21/07/2025 to 14:00 Monday 21/07/2025

Issued: 20:13 Sunday 20/07/2025

dacogawa

https://www.boards.ie/discussion/comment/123654572#Comment_123654572

It's not on the website yet. But just saw an update on the news. It's Orange up north on the website, but no orange along the East coast, nearly an hour later…

Pacing Mule

They updated rté website just before you posted here.

dacogawa

https://www.boards.ie/discussion/comment/123654634#Comment_123654634

I meant the Met Eireann website, still no update. https://www.met.ie/warnings-today.html

Larbre34

https://www.boards.ie/discussion/comment/123654368#Comment_123654368

It does. About as often as it happens anywhere else on or near Ireland. I've been treated to many light shows out to sea from activity that never got near to landfall.

And remember the famous lake-effect snow of 2010 coming in off the Irish Sea?

Meteorite explained it well above, but the bottom line is that the Irish Sea is between 80 and 150 kilometres wide, it just isn't big enough, or warm enough, to contribute to convection and feed instability, unless you get those sudden disparities in temperature between sea surface and airmass or unusual seasonal warmth at the sea surface.

dacogawa

https://www.boards.ie/discussion/comment/123654180#Comment_123654180

It definitely does, I've seen it many times, and have been lucky enough to catch a few shots.

https://twitter.com/DavidCostelloDC/status/1582869030687297536

https://twitter.com/DavidCostelloDC/status/1276399264294416384

Pacing Mule

If you click on Monday, it's been Orange warnings there for Dublin since 8:30ish.

Warning is only kicking in at midnight so it's not showing for today.

dacogawa

https://www.boards.ie/discussion/comment/123654835#Comment_123654835

Thanks Pacing Mule! I did have a look a few times earlier, but there was nothing there.
It's there now and has an "Issued" at 22:23.

They've really have got to sort that website out, I've posted before with screengrabs at the same time on mobile & desktop with completely different forecasts.

Anyway, that's for the dedicated thread. I might pop over there when I get a bit of time. Thanks again!

Pacing Mule

The issued at 22:23 is when they added Wicklow to the warning.

pnott

I really hope for some good sparks tonight. Not very confident though. Last intense thunderstorm I can recall in Greystones was in the early hours of June 26th 2020. That storm moved up from the south along the coast. The thunder was deafening that time

dacogawa

https://www.boards.ie/discussion/comment/123654986#Comment_123654986

I remember that one well. It stopped dead in the centre of Dublin Bay between Dun Laoghaire and Howth, it wouldn't go any further. (Twitter pic above)

pad199207

Power gone in Kildare due to lightning strike. I didn’t see any though or hear thunder.

PixelCrafter

That one didn't seem to register on Blitzortung

pad199207

https://www.boards.ie/discussion/comment/123655050#Comment_123655050

Yeah I’d say it was a transformer

PixelCrafter

https://www.boards.ie/discussion/comment/123655051#Comment_123655051

Brief outage reported on ESB's power check map, seems to have been restored relatively quickly.

dacogawa

Temps seem a lot cooler here now (South Dublin Coast). Just medium/heavy rain. I can't see sparks kicking off at the moment in these conditions. A westerly wind with heavy precipitation moving south will keep me interested for an hour or so though 😂

geographica

https://www.boards.ie/discussion/comment/123654450#Comment_123654450

Not fireworks no? 😜

PukkaStukka

Every time a thunder warning is issued for Dublin, there's n'er a strike 😟

Meteorite58

Nice convergence along S and SE coasts this afternoon, chance of a few heavy convective showers near the coasts maybe slight chance of isolated thunderstorm.

Meteorite58

Bit of activity detected around Clonakilty late afternoon.