Convective/Thunderstorm Discussion : Winter 2020/Spring 2021

Meteorite58 · 18-05-2021 10:15pm

Active day. Some very big hail showers reported today , look at the ground coating in the video from Kilkenny.

https://twitter.com/AndyJamesRyan/status/1394668478989312007?s=20

https://twitter.com/StevieCahill/status/1394669752845586432?s=20

jackrussel · 19-05-2021 3:13pm

Rumbles to the north of cork city?

Gamma Flash · 19-05-2021 4:55pm

Had a few rumbles over lunchtime in dungarvan too today, nothing much

Oneiric 3 · 19-05-2021 6:46pm

Sunday (chart below) and Monday could be another couple of days to watch for the eastern half the country for some pulse storms as another polar sourced (slack) low hovers close to the county. Sunday itself will depend on how quickly the initial front clears through.

19-05-2021 8:10pm

JCX BXC wrote: »

While I'm enjoying the marginally drier conditions here on the West Coast, I'm getting quite envious of these daily thunderstorms.

Sadly cattle were killed by lightning in the late afternoon storm near Tinahely in South Wicklow yesterday,we could hear the storm and see the lightning here about 20kms SE of it
It must have been ferocious underneath it

smuggler.ie · 19-05-2021 10:33pm

This was shared from source to whom shared to me. Unfortunately, cannot verify legitimacy, but people not likely in "Photoshop business".
Image taken by the phone.
Stunning
18 May 2021 @~17:30, midlands

Gaoth Laidir · 19-05-2021 11:44pm

Marine Layer wrote: »

Sadly cattle were killed by lightning in the late afternoon storm near Tinahely in South Wicklow yesterday,we could hear the storm and see the lightning here about 20kms SE of it
It must have been ferocious underneath it

It only takes one strike to take out a whole herd of cattle. Because they stand on all fours, the potential difference between their front and hind hooves causes a current to flow through their body and heart. I remember hearing old wives' tales about staying well clear of animals during a thunderstorm as they "attract" lightning, but this false conclusion most likely came about due to the above.

Having said that, there was a good bit of action there alright.

Meteorite58 · 19-05-2021 11:48pm

Marine Layer wrote: »

Sadly cattle were killed by lightning in the late afternoon storm near Tinahely in South Wicklow yesterday,we could hear the storm and see the lightning here about 20kms SE of it
It must have been ferocious underneath it

Saw that there were calves killed near Tullow on the 15th as well , reported by Carlow Weather. Looking through Twitter there were a lot of CG strikes recorded, and a fair share of funnels over the few days ,the storms were quite potent at times.

As highlighted by Oneric Sunday is looking like giving thunderstorm potential post frontal airmass, a bit away but models showing a very cold upper pool of air over Ireland, possibly even colder than yesterday but surface temps look cool. Will be interesting watching this evolve and to see if it coincides with afternoon heating , might be more shear available also.

20-05-2021 11:38am

Gaoth Laidir wrote: »

It only takes one strike to take out a whole herd of cattle. Because they stand on all fours, the potential difference between their front and hind hooves causes a current to flow through their body and heart. I remember hearing old wives' tales about staying well clear of animals during a thunderstorm as they "attract" lightning, but this false conclusion most likely came about due to the above.

Having said that, there was a good bit of action there alright.

What kills them aswell is if they are standing in a pool of water during a lighning strike and heavy rain
Sheep during thunde stand dead still in a field like statued,it is a strange wonder to ser

redsteveireland · 20-05-2021 5:20pm

Lone sferic showing up off the Clare Coast as some heavier showers make progress towards land.

Oneiric 3 · 20-05-2021 7:41pm

redsteveireland wrote: »

Lone sferic showing up off the Clare Coast .

This evening (20th) back in 2014 had just a little bit more to offer :rolleyes:

Meteorite58 · 21-05-2021 10:39pm

Consistently showing very cold uppers on Sunday in the post frontal unstable airmass . Should be some fairly ok shear available with some convergence aiding the instability giving decent lapse rates. Temps fairly low , would expect quite a few heavy hail showers again and thunderstorm potential could be widespread. Cold night following into Monday with more hail and thunderstorm potential

Oneiric 3 · 22-05-2021 7:41pm

Nice write up here (for those that might have an interest) on the 10 year anniversary of what was one of the most severe tornado outbreaks in modern US history (May 22nd 2011)

https://blog.weather.us/a-most-disastrous-tornado-ten-years-ago/

And came across this real time footage from this event which does nothing but show just how terrifying it is to be in the direct path of an F5:

https://www.youtube.com/watch?v=cQnvxJZucds

https://www.youtube.com/watch?v=cQnvxJZucds

Incredible to see how dark it is outside in that vid and it only the late afternoon, not to mention the unnerving sound of the tornado before it hits...

Donegal Storm · 22-05-2021 9:15pm

I remember watching live news coverage of that storm as it was happening, a reporter showed up to film the aftermath and was in total disbelief at what he came across, the town looked like the aftermath of a nuclear explosion

I think this might have been it
https://www.youtube.com/watch?v=__o5elS566U

The One Doctor · 22-05-2021 9:56pm

Donegal Storm wrote: »

I remember watching live news coverage of that storm as it was happening, a reporter showed up to film the aftermath and was in total disbelief at what he came across, the town looked like the aftermath of a nuclear explosion

I think this might have been it
https://www.youtube.com/watch?v=__o5elS566U

And people complain about Irish weather. They actually whine about how bad Irish weather is. Most of them have never seen an MCS right above their heads, unlimited energy right there. And they complain about a bit of rain and few puffs of wind.

Donegal Ken · 23-05-2021 9:35am

Convective weather overview for Sunday 23rd of May 2021

The post-frontal environment will be characterised by cold air aloft overspreading SSTs and diurnal heating inland. Scattered showers are likely to develop over Ireland, and given 300-500 J/kg CAPE and modest cloud-layer shear then some sporadic lightning seems likely. The strongest cells may produce hail 1.0-1.5cm in diameter and wind gusts of 40-50mph. Overnight, the risk of showers expands eastwards into southern and western Britain with an ongoing risk of a few lightning strikes near coasts and offshore primarily (10-15% chance).

http://convectiveweather.co.uk/forecast.php?date=2021-05-23

Jimbob1977 · 23-05-2021 2:03pm

Rumble of thunder over Doneraile Forest Park in North Cork

spookwoman · 23-05-2021 2:07pm

Jimbob1977 wrote: »

Rumble of thunder over Doneraile Forest Park in North Cork

You have 2 nice cells up there

Gaoth Laidir · 23-05-2021 2:18pm

The Valentia sounding (launched 11Z) shows a few hundred J/kg of CAPE already present down there at that early time. With some further surface heating inland during the afternoon we could see 1000 J in some spots of the south midlands and east. Strong shear too.

sumtings · 23-05-2021 2:24pm

Nice bit of thunder in Limerick, met eireann app showing strike by motorway half way to Nenagh, and looks like treacherous conditions along it

WWMRD · 23-05-2021 2:25pm

The loudest thunder I've heard in my life in Limerick City at the moment!

acalmenvoy · 23-05-2021 2:26pm

WWMRD wrote: »

The loudest thunder I've heard in my life in Limerick City at the moment!

Some amount of hail too..

spookwoman · 23-05-2021 2:26pm

Blitzortung.org used to be very good for showing strikes but lately doesn't seem to be detecting much. Anyone know why?

pad199207 · 23-05-2021 2:27pm

Status Yellow - Thunderstorm warning for Leinster, Munster

Met Éireann Weather Warning

Locailised thunderstorms with possible hail and spot flooding.

Valid: 14:20 Sunday 23/05/2021 to 21:00 Sunday 23/05/2021

Issued: 14:21 Sunday 23/05/2021

WWMRD · 23-05-2021 2:31pm

acalmenvoy wrote: »

Some amount of hail too..

Yeah...wouldnt like to have gotten caught out in that shower!

md323 · 23-05-2021 2:35pm

Still getting some big rumbles here in East Limerick , very loud

igCorcaigh · 23-05-2021 2:39pm

spookwoman wrote: »

Blitzortung.org used to be very good for showing strikes but lately doesn't seem to be detecting much. Anyone know why?

There seems to be a delay. Some are showing up now.

Jpmarn · 23-05-2021 2:39pm

Camera rolling near Limerick City. if anything interesting comes out of it will go up on youtube and linked to this thread.

fryup · 23-05-2021 2:42pm

all kicking off in the mid-west begob!

Sierra Oscar · 23-05-2021 2:44pm

Pretty intense thunder North Tipperary at the minute. Heavy hail showers.

Comhrá · 23-05-2021 2:52pm

spookwoman wrote: »

Blitzortung.org used to be very good for showing strikes but lately doesn't seem to be detecting much. Anyone know why?

I noticed the same thing. Their coverage seems to have disimproved a lot in recent times. I now find https://www.netweather.tv/live-weather/lightning much better.

Comhrá · 23-05-2021 2:56pm

A second cell kicking off over Limerick City just now, 14.55

fryup · 23-05-2021 3:22pm

getting dark again in east-clare

sumtings · 23-05-2021 3:49pm

sumtings wrote: »

Nice bit of thunder in Limerick, met eireann app showing strike by motorway half way to Nenagh, and looks like treacherous conditions along it

Seems like there was a collision coming westwards according to aaroadwatch

KanyeSouthEast · 23-05-2021 3:59pm

Thunder in Clonmel now pitch dark.

cml387 · 23-05-2021 4:00pm

Much rumbling in Clonmel. Too bright to see any lightning though.

lucalux · 23-05-2021 4:01pm

Thunder and lightning in south Roscommon now.

the hail moved in first, a decent covering of that on the ground and just easing off now.

Nothing on netweather/blitzortung yet (have definitely noticed they are not as up to the minute in the past year or so. Used to be instantaneous coming up on the map)

Edited to add Blitzortung has one strike marked west of Lough Ree

sunbabe08 · 23-05-2021 5:33pm

Nice rumbles of thunder passing through youghal

Beechwoodspark · 23-05-2021 5:40pm

Heavy hail fall N kildare

Gaoth Laidir · 23-05-2021 6:16pm

Thunderstorm warnings for Dublin and Casement airports up to 8 pm.

EIDW AD WRNG 01 VALID 231715/231900 TS FCST=
EIME AD WRNG 01 VALID 231715/231900 TS FCST=

Danno · 23-05-2021 7:18pm

sumtings wrote: »

Nice bit of thunder in Limerick, met eireann app showing strike by motorway half way to Nenagh, and looks like treacherous conditions along it

https://fb.watch/5GlwS_MlEB/

Meteorite58 · 23-05-2021 8:52pm

Todays detection for the record.

Netweather

ATD Lightning Detection System

From Met Eireann 'The ATDnet Lightning Detection System is optimised for detecting cloud-to-ground lightning strokes and flashes rather than cloud lightning (inter-cloud and intra-cloud lightning). The majority of lightning occurs in the storm cloud itself or between clouds. On average approximately 10 to 20 percent of all lightning over Ireland are cloud-to-ground strikes'.

Meteorite58 · 23-05-2021 9:09pm

Maybe E Munster, Leinster especially around the SE perhaps with the most risk of Thunderstorms and hail tomorrow afternoon during peak diurnal heating as convection builds over land on its track from the NW to the SE, Temps up around 13 / 14C in good sunny spells.

lolie · 23-05-2021 11:49pm

We had a nice thunderstorm this afternoon moving up west of here that unfortunately died out before i got into a decent viewing spot, similar to last Tuesday evening.
Some nice but distant cloud to ground strikes.
A friend sent me a screenshot of a strike, quality not great.

Screenshot-20210523-173630-com-mxtech-videoplayer-ad-edit-7694872365492.jpg

stooge · 24-05-2021 2:16pm

Took a small video but unsure how to upload (it's MP4 format and would rather not use external website). Here is a screenshot of touchdown

Have a few other videos and photos of this passing through south Roscommon/Lough Ree.

strike.JPG

Oneiric 3 · 24-05-2021 10:54pm

Live stream of a nice storm coming in over Kansas right now:

https://www.youtube.com/watch?v=OHEdMR7yiwc

Jpmarn · 24-05-2021 11:49pm

https://youtu.be/C3YLOiJTAbs

Here is my video covering thunderstorms around Limerick last Sunday.

Meteorite58 · 25-05-2021 12:20pm

Quiet day convective wise yesterday , just a few strikes picked up on the ATD , 1 near Borris in Ossary, 1 near Killkenny and 1 just off Rosslare.

PukkaStukka · 25-05-2021 5:54pm

Surprised there were no sparks over north Dublin today. Several heavy hail showers before lunch culminated in a near tropical downpour around 4pm. M1 was a washout, and spot flooding on minor roads.

Oneiric 3 · 26-05-2021 9:11am

Oneiric 3 wrote: »

Live stream of a nice storm coming in over Kansas right now:

https://www.youtube.com/watch?v=OHEdMR7yiwc

Not sure if this footage is from that exact storm, but captured in Kansas on the 24th:

https://www.youtube.com/watch?v=N6Z34pr1kHk

https://www.youtube.com/watch?v=N6Z34pr1kHk

Great footage, but a strange tornado. It continual forms, dissipates and reforms in different regions of the same small area, all while appearing to be rapidly moving... which it actually isn't.

Convective/Thunderstorm Discussion : Winter 2020/Spring 2021

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