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Convective/Thunderstorm Discussion : 2019 and Winter 2020

Meteorite58 · 2019-03-04 19:17:54

Thanks to JCX BXC for pointing out need to start a Spring / Summer thread. A few clatters of Thunder here near Tralee this evening and some big showers of hail . A lot of activity today .

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#102 12-03-2019 10:01pm

Meteorite58

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The main area of thunderstorms seems to be pulling away from N Ire towards Scotland , EUMETSTAT showing an area that might produce sparks moving into the W/ NW .

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#103 13-03-2019 10:42am

Graces7

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rarely seen as much lightning as these last days pre and during gareth. Also never seen bright blue lightning before either . Could hardly hear the thunder for the gale gusts.
west mayo offshore outpost

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#104 13-03-2019 10:45am

Graces7

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dmc17 wrote: »

Where are the pics? If on your computer, just need to click the attach file icon (paperclip icon) when composing your post.

I have dozens of photos on my phone but this laptop it emerges ( google ) does not have the files it needs to send to computer.

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#105 13-03-2019 10:55am

highdef

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Graces7 wrote: »

I have dozens of photos on my phone but this laptop it emerges ( google ) does not have the files it needs to send to computer.

If you email the photos to yourself, then you can access the photos on your laptop.

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#106 17-03-2019 2:55pm

pad199207

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Ridiculous Hail here in Naas from this. Set alarms off everywhere!

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#107 30-03-2019 6:59pm

Meteorite58

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Tues shaping up to produce a fair share of convective weather it would seem. With the passage of an upper Low and quite cold uppers , plenty of moisture in the atmosphere and some shear available and with the sun getting stronger - all together looks like producing quite an amount of heavy showers of rain and hail and at this stage looks like a few could produce lightning. One to keep an eye on.

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#108 30-03-2019 8:53pm

Meteorite58

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Not a huge amount of shear but Cape levels looking good enough for a fairly lively thunderstorm on Tues perhaps as diurnal heating takes effect during the day. Strong Jet nearby.

Could be some locally very heavy gusty showers of rain and hail.

Thunderstorms could occur anywhere but could see some maturing as they move well inland towards Ireland's 'Thunderstorm alley' :pac:.

Maybe I am jumping the gun but thinking we could be seeing some good reports and Pics from highdef and Pad and others on Tuesday.

ECM normally conservative showing increasing amounts of Cape and potential these last few runs.

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#109 30-03-2019 9:55pm

Meteorite58

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Will be interesting to see what type of convective activity develops on Tuesday.

Lapse rates look steep enough if there are enough breaks in the cloud perhaps .

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#110 31-03-2019 3:27am

SlowBlowin

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I used to like lightening, until I moved to the mountains. We have had 2 direct strikes in 8 years, one of which was quite bizarre.

I lost EVERY electrical item in the house, including a 2 month old 48 inch Samsung TV, now I buy the cheapest I can. Now when these is a storm the power get switched off at the box, but we have still heard arcs from the consumer unit.

Please no more.

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#111 31-03-2019 4:20am

ZX7R

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SlowBlowin wrote: »

I used to like lightening, until I moved to the mountains. We have had 2 direct strikes in 8 years, one of which was quite bizarre.

I lost EVERY electrical item in the house, including a 2 month old 48 inch Samsung TV, now I buy the cheapest I can. Now when these is a storm the power get switched off at the box, but we have still heard arcs from the consumer unit.

Please no more.

Why don't you get a lightning conductor installed,not cheap but in your case worth the cost

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#112 31-03-2019 2:51pm

PukkaStukka

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ZX7R wrote: »

SlowBlowin wrote: »

I used to like lightening, until I moved to the mountains. We have had 2 direct strikes in 8 years, one of which was quite bizarre.

I lost EVERY electrical item in the house, including a 2 month old 48 inch Samsung TV, now I buy the cheapest I can. Now when these is a storm the power get switched off at the box, but we have still heard arcs from the consumer unit.

Please no more.

Why don't you get a lightning conductor installed,not cheap but in your case worth the cost

Unfortunately that wouldn't protect against mains-bourne lightning, only against a direct strike.

In a past life, I used to repair brown goods and every time there was a significant electrical storm in our area, my bench would be full for the next week because mains-bourne lightning would've taken out a swathe of sets and appliances. Even worse, a third of the stuff would be binned because the cost of repair was uneconomic, or the damage too severe to repair. In one house, I found bits of a blown tuner stuck in the TV sets case because the outside aerial was struck. Mercifully nobody hurt and nothing else damaged.

Anti surge protection devices would be a help, but mass disconnection of everything - as the OP has done here - is the best course of action.

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#113 31-03-2019 10:01pm

SlowBlowin

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Its not just the immediate aftermath, anything that does not fail, WILL FAIL in the next month. I lost stuff that was not plugged in !

When we had the last strike, which I am sure was ball lightening, there were dull thuds though out the house as various electrical devices exploded. It lasted about 20 seconds, I was in the loo when it started, no sound, just an extremely bright light,, I remember the edge of the light as it came though the door, sharp edged, bright as anything I had ever seen. I walked into the kitchen and it was too bright to see anything, then an enormous explosion, later found a hole in the ground outside the kitchen window about a two foot wide and a foot deep.

The neighbouring farmer came up and said he saw my place "full of sparks" and heard the bang so he came up. He lost his TV and phone etc. One by one I changed the satellite dish the LNB, the receiver and the TV, and it still did not work. After a lot of fiddling I found the inner conductor of the coax cable was gone, melted away, just little beads of copper left.

Most of our issues come from the mains though, we are 80% off grid, but still have that connection, which is a major source of trouble. I have some jelly filled fast acting power filters, they are meant to be the best and the seem to help.

So NO, I dont want lightening on Tuesday.

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#114 31-03-2019 10:07pm

SlowBlowin

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I know someone is going to pull me up on the 80% off grid thing, let me clarify.

In the summer we survive on renewables, in the winter we use the mains to charge the batteries, and run the freezer and fridge.

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#115 31-03-2019 10:19pm

Storm 10

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Many years ago I worked in a City main telephone exchange in the UK, when ever there were thunderstorms in the local area we would place bets to see which of the local exchanges would get knocked out first by lightning strike.

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#116 31-03-2019 10:30pm

PukkaStukka

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Storm 10 wrote: »

Many years ago I worked in a City main telephone exchange in the UK, when ever there were thunderstorms in the local area we would place bets to see which of the local exchanges would get knocked out first by lightning strike.

I spoke about mains borne lightning and anything metal can conduct it. Aerial down leads, satellite cables, phone lines and even metal pipes can be lethal.

Lightning over a phone line is 100% lethal to anything plugged into it. The phone instrument itself, modems, fax machines were always guaranteed irreparable by lightning.

Also saw the aftermath of a chimney breast ilightning strike n a house hit not far from the family homestead. The chimney stack outside was obliterated from the roof and the breast had a massive crack in the bedroom forged by the lightning heading to earth.

It's an amazing phenomenon in the sky but a frightening one once it comes to.ground

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#117 31-03-2019 10:34pm

SlowBlowin

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I am planning to buy/make a field mill in the next year. I am hoping that will give me enough time to disconnect.

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#118 31-03-2019 10:36pm

Storm 10

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SlowBlowin wrote: »

I am planning to buy/make a field mill in the next year. I am hoping that will give me enough time to disconnect.

Can I ask you where are you located

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#119 31-03-2019 10:46pm

SlowBlowin

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drive.jpg

I am very high up in the Macgillycuddy Reeks in Kerry.

Heres a shot from my drive CCTV earlier today.

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#120 31-03-2019 10:57pm

PukkaStukka

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That looks a very beautiful place!

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#121 31-03-2019 11:00pm

SlowBlowin

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PukkaStukka wrote: »

That looks a very beautiful place!

Thanks, its is, but you can probably understand why I always on the weather forums...

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#122 01-04-2019 6:42pm

highdef

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A line of very heavy precipitation had developed in the past half hour, stretching from just south of portlaoise northeastwards to Balbriggan and out to the Irish sea. Recent sferic in North Kildare.

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#123 01-04-2019 6:45pm

pad199207

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Thunder here in kildare

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#124 01-04-2019 6:48pm

Weather BOFH

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Torrential hail here near the Hill of Allen with 4 or 5 rumbles of thunder.

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#125 01-04-2019 7:04pm

Danno

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https://twitter.com/LaoisWeather/status/1112775995461980161

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#126 01-04-2019 7:10pm

pad199207

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Stunning shelf cloud just went over here in Naas

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#127 01-04-2019 7:20pm

jimmynokia

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pad199207 wrote: »

Stunning shelf cloud just went over here in Naas

Nice pic getting dark here in DN22 lets hope for some action might head out for a look with the camera

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#128 01-04-2019 7:31pm

jimmynokia

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Just got into Car heard rumble

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#129 01-04-2019 8:16pm

Meteorite58

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Tomorrow could be a fairly lively day with scattered thunderstorms and squally hail showers with a fair amount of instability in the atmosphere. Cold uppers with plenty of moisture and sunny internals, good low level shear but not so good deep level sheer , good lapse rates . Thunderstorms could occur anywhere but thinking the midlands / East could see a shot of them in the afternoon perhaps. Any other thoughts ?

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#130 01-04-2019 8:18pm

Meteorite58

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Big convective gusts from those squally showers tomorrow.

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#131 01-04-2019 8:27pm

DOCARCH

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Distant rumble in Dublin 16.

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#132 01-04-2019 8:32pm

kittyn

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DOCARCH wrote: »

Distant rumble in Dublin 16.

Damn I missed it 🙈

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#133 01-04-2019 8:43pm

q85dw7osi4lebg

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Meath coast a little earlier.

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#134 01-04-2019 10:46pm

Meteorite58

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Convective Weather

Day 2 Convective Outlook
VALID 06:00 UTC Tue 02 Apr 2019 - 05:59 UTC Wed 03 Apr 2019

ISSUED 20:25 UTC Mon 01 Apr 2019

ISSUED BY: Dan

Elevated showers may be ongoing across coastal parts of East Anglia and Kent at the beginning of this forecast period, posing a low risk of lighting. These will soon clear, and thereafter the attention turns to the post-frontal environment already over Ireland and western Scotland, and extending across the remainder of the British Isles through Tuesday.

A potent upper trough will extend southwards across the British Isles, with notably cold mid/upper levels creating very steep lapse rates and a few hundred J/kg CAPE. Numerous wintry showers will develop, both in response to relatively warm SSTs and diurnal heating inland. The strongest cells may produce a few lightning strikes and some small hail.

Beneath the trough axis, shear will tend to be weak due to both similar speed and direction with height. However, around the periphery stronger shear will be present, particularly across southern and western Ireland and also E/SE England. Tricky attempting to be more specific to areas with a greater lightning potential given the extensive nature of somewhat marginal instability, but perhaps the best overlap of favourable conditions will exist in S + E Ireland and across the Celtic Sea towards SW England - these areas may require an upgrade to a low-end SLGT if confidence improves.

Showers inland will tend to become more isolated overnight as nocturnal cooling of the boundary layer commences, but some will likely persist aided by both upper forcing and relatively warm seas around western coasts.

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#135 02-04-2019 8:40am

sryanbruen

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Did get quite dark yesterday evening. The odd rumble of thunder.

https://twitter.com/photographywx/status/1112970646143762432?s=21

Photography site - https://www.sryanbruenphoto.com/
Weather photo portfolio - https://sryanbruen.myportfolio.com/weather-1

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#136 02-04-2019 12:24pm

jimmynokia

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Over the Dublin mountains..

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#137 02-04-2019 7:01pm

Meteorite58

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Cork and Limerick had a fair few sferics detected today.

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#138 02-04-2019 7:07pm

jimmynokia

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jimmynokia wrote: »

Over the Dublin mountains..

Another one I got today, some epic cloud formations out there today

https://www.boards.ie/vbulletin/showpost.php?p=109834357&postcount=65

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#139 02-04-2019 10:29pm

Meteorite58

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Quite a few sferics showing up a while in Kerry tonight. Big squally showers of hail still going through here near Tralee. Still a chance of some thunder overnight .

IMO Thurs a lot of CAPE available with diurnal heating , low level shear and cold uppers. Not much DLS but lapse rates steep. Less wind on Thurs coming from a NE /E direction with slow moving cloud perhaps giving more of a chance for cells to form. These could produce some heavy localised downpours with hail also perhaps and am wondering if a few places could experience a proper thunderstorm overhead for a time.

Just trying to build a picture from the charts to better understand and for me personally hopefully to be better able to anticipate when the conditions are more favourable for thunderstorm development.

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#140 03-04-2019 9:00pm

Meteorite58

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Watching out for thunderstorms tomorrow . Will see what happens.

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#141 04-04-2019 1:13pm

Meteorite58

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Nice sunny day in Tralee, dry so far but huge convection going up, wonder will it spark ?

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#142 04-04-2019 3:16pm

JCX BXC

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Some beautiful convection around Galway with a few hail showers.

Scene from NUIG just now :

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#143 04-04-2019 3:31pm

Gary Owen

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Couple of claps of thunder here in Limerick now .

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#144 04-04-2019 3:37pm

Tacklebox

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Thunder near minister's cross, Sixmilebridge area now, very loud

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#145 04-04-2019 4:16pm

JCX BXC

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Shannon Airport reporting light thunderstorm hail (-TRGR), temperature 4°c dewpoint 0°c

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#146 04-04-2019 4:32pm

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JCX BXC wrote: »

Shannon Airport reporting light thunderstorm hail (-TRGR), temperature 4°c dewpoint 0°c

Vicious thunderstorm just passed through Ennis with hailstones up to 1cm & frequent lightning. Surface a carpet of white.

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#147 04-04-2019 4:48pm

SleetAndSnow

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high topped clouds in Cork, Just had a hail shower aswell. Light but very big stones. Sleeting now

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#148 04-04-2019 7:11pm

redsteveireland

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Lightning overhead and large teardrop shaped graupel in Monivea in the last 20minutes, heading towards the east of Galway city.

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#149 04-04-2019 8:18pm

Meteorite58

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Todays crop of detected sferics , clouds matured and became weakly electrified as they crossed the country in clearer less messy air aided by the bit of diurnal heating it would seem.

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#150 04-04-2019 11:42pm

redsteveireland

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Meteorite58 wrote: »

Todays crop of detected sferics , clouds matured and became weakly electrified as they crossed the country in clearer less messy air aided by the bit of diurnal heating it would seem.

Some missing from Galway and Clare on that. How many detectors do we actually have?

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#151 05-04-2019 12:02am

Meteorite58

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Yeah the Met office is showing more including Galway but they dont pick them all up , I believe they might miss around a third of sferics from lightning discharges. Often notice when reports come in that they might not show up on the radar or not as intense as being reported.

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