Convective/Thunderstorm Discussion 2013/14

Video · 22-05-2014 11:43pm

Hal1 wrote: »

There's a good ole storm over Denmark at the moment. I can find a live webcam though, only the 60 second stills. We haven't had a good night storm in fookin years.:(

In december there was an incredible storm one night... most probably slept through it though

http://www.met.ie/images/lightning/sferic_20131221.gif

highdef · 25-05-2014 1:21pm

It might be just anaprop but it looks like a small but intense cell has popped up around the Dunboyne area, heading in a SSW direction towards Maynooth.

highdef · 25-05-2014 1:31pm

There appears to be a line of north - south orientated showers developing a little way in from the east coast. Convergence???

highdef · 25-05-2014 1:48pm

Looking at some east coast PWSs, it looks like some sea breezes have kicked off with winds between north and northwest a little way inland. I'd say the same is occurring in Co Down where sparks have begun along with very heavy showers.
In the short term, I would expect some lightning or at least torrential showers in a north - south line between around Navan to around Naas and a little bit to the east and west of that line.

Strike just picked up NE of Kilcock/NW of Maynooth

DOCARCH · 25-05-2014 1:48pm

highdef wrote: »

There appears to be a line of north - south orientated showers developing a little way in from the east coast. Convergence???

Seems to be an element of convergence alright. Those showers not really moving. Some places could get very wet!

Duiske · 25-05-2014 2:02pm

highdef wrote: »

There appears to be a line of north - south orientated showers developing a little way in from the east coast. Convergence???

Just noticed that on radar and popped in to see was anyone discussing it. As DOCARCH says, some torrential downpours going to hit some areas through the afternoon. A slow moving line that looks like it won't break up until well into evening.

highdef · 25-05-2014 2:10pm

I'm between Kilcock and Enfield and can see the solid canvass of black just to my east, creeping so slowly this way. Was going to go for a jog but I think I will stay put. I reckon it's gonna get very wet soon and I don't think it's going to be a short shower either.

maquiladora · 25-05-2014 3:19pm

highdef wrote: »

There appears to be a line of north - south orientated showers developing a little way in from the east coast. Convergence???

Yep.

Gonzo · 25-05-2014 5:23pm

just had a few loud cracks of thunder, sky very dark.

Larbre34 · 25-05-2014 6:20pm

As heavy a shower as I have seen in Ireland lasting 10 mins just passing thru Dublin 15, flash flooding certain I would say. No idea if there was thunder, the rain was making too much noise

Super-Rush · 25-05-2014 6:27pm

Holy crap the last hour of rain has been insane. Some major flooding on the back roads here in Carlow. No convection thought.

Video · 25-05-2014 6:39pm

Larbre34 wrote: »

As heavy a shower as I have seen in Ireland lasting 10 mins just passing thru Dublin 15, flash flooding certain I would say. No idea if there was thunder, the rain was making too much noise

Trust me there has been a lot heavier elsewhere over the past few weeks.

highdef · 25-05-2014 6:39pm

It might be just the way it looked on radar but it looked like one shower approached the D15 area from the northwest whilst another developed around the Red Cow area and moved in a northeast direction. On radar, it looks like they actually "collided" and merged right over the Blanchardstown/East Lucan/Leixlip area.
if this did happen, i wouldn't be surprised if there reports of funnels

OneEightSeven · 25-05-2014 7:02pm

highdef wrote: »

It might be just the way it looked on radar but it looked like one shower approached the D15 area from the northwest whilst another developed around the Red Cow area and moved in a northeast direction. On radar, it looks like they actually "collided" and merged right over the Blanchardstown/East Lucan/Leixlip area.
if this did happen, i wouldn't be surprised if there reports of funnels

Tornadoes form at the jet stream, which is hundreds of kilometers away from us at the moment, thankfully.

highdef · 25-05-2014 7:06pm

OneEightSeven wrote: »

Tornadoes form at the jet stream, which is hundreds of kilometers away from us at the moment, thankfully.

Sorry but that is simply not correct. You should try a bit of googling to obtain the correct information. Incidentally, can you point me to your source that informed you that tornadoes form at the jet stream?

OneEightSeven · 25-05-2014 7:10pm

Here: https://www.uwec.edu/jolhm/EH/Barnier/tornado.htm

The last factor needed to produce the tornado is the jet stream to be moving at least 150 mph. This sheering action of the three air masses colliding forms the tornado in the part of the storm known as the mesocyclone. If, in this area of the tornado, the wind that is rising up in the mesocyclone starts to change direction the chances of a tornado forming are very likely since this is the main force which causes the spinning action of the tornado. This directional change in wind is known as the vertical wind sheer. The more developed and faster these winds rotate the more compact they become. As they become very compact they will spin faster and faster like a figure skater, who holds her arms close to her body to increase her rotation speed. Most tornadoes spin counterclockwise in the northern hemisphere and clockwise in the southern hemisphere, although they can also reverse these by spinning anticyclonically. Because of this tendency to spin in different directions and relatively small size of a tornado most believe that the coriolos affect has very little to do with the directional spin of a tornado. Although these super cell storms with or without producing tornados are extremely destructive they are the least common of all of the storms.

highdef · 25-05-2014 7:17pm

OK, fair enough, you were misinformed. That particular source did misinform you

OneEightSeven · 25-05-2014 7:23pm

This article says the jet stream is responsible for some of the most violent storms and tornadoes:

http://www.tornadochaser.net/jet.html

Can violent tornadoes form away from the jet stream then?

Video · 25-05-2014 7:30pm

OneEightSeven wrote: »

This article says the jet stream is responsible for some of the most violent storms and tornadoes:

http://www.tornadochaser.net/jet.html

Can violent tornadoes form away from the jet stream then?

We get small tornados... no one ever said a violent tornado.

highdef · 25-05-2014 7:33pm

OneEightSeven wrote: »

This article says the jet stream is responsible for some of the most violent storms and tornadoes:

http://www.tornadochaser.net/jet.html

Can violent tornadoes form away from the jet stream then?

A tornado would not affect the jet stream. Whilst it is true that the jet stream can be partly responsible for tornado formation, it is not necessary for their development.

I shot the following video on a calm evening a couple of years ago. Whilst still very weak, it was officially recorded as a tornado -

maquiladora · 25-05-2014 10:40pm

Chance of some thundery showers tomorrow, northeast most at risk.

hawkwing · 26-05-2014 8:27am

"However, showers over the midlands and north-Leinster will become widespread today and many will turn heavy this afternoon. A few thunderstorms are likely later as well. " Met É going for some action later today.

ThisRegard · 26-05-2014 11:33am

Larbre34 wrote: »

As heavy a shower as I have seen in Ireland lasting 10 mins just passing thru Dublin 15, flash flooding certain I would say. No idea if there was thunder, the rain was making too much noise

It was pretty miserable around D15 yesterday, raining pretty much all day. During that shower you mention our local park got flooded, there's an all weather pitch in it that never holds water, the kids were looking at it trying to figure out if they should go for a swim or go home. I spotted my neighbours garden was flooded so went out to check mine out, our French drain was overwhelmed and the water started to over flow as it was completely backed up.

Duiske · 26-05-2014 11:37am

Nasty looking shower getting into South Dublin at the moment.

edit : I'm obviously talking about weather here, not local elections.

Supercell · 26-05-2014 11:38am

Can see that heavy shower on the radar, must be just north of here , just a few spots of rain in the breeze, not even enough to wet the ground. Impressive CB cells visible to the north.

Supercell · 26-05-2014 12:02pm

Spoke too soon, belting it down now.

maquiladora · 26-05-2014 12:03pm

Enough for a few thunderstorms to kick off later, but probably nothing too severe today.

vickers209 · 26-05-2014 1:44pm

Yellow warning from met.ie

National Weather Warnings

STATUS YELLOW

Thunderstorm Warning for Munster, Leinster, Connacht, Donegal, Monaghan and Cavan

Some thunderstorms are expected this afternoon and early evening. These will give some downpours in places at times and may lead to local spot flooding.
Issued:
Monday 26 May 2014 12:00
Valid:
Monday 26 May 2014 12:00 to Monday 26 May 2014 20:00

maquiladora · 26-05-2014 1:51pm

There's been a few sparks up in the northwest.

homer simpson · 26-05-2014 2:13pm

Fairly intense thunderstorm up here at the minute, I have a go pro type camera set at my door recording it all, although my DSLR is in the boot of my car which my missus took to work with her today

homer simpson · 26-05-2014 2:20pm

Phone pic of the storm cloud, also is that a funnel forming / trying to form to the left of the hill top :eek:

Super-Rush · 26-05-2014 2:38pm

homer simpson wrote: »

Fairly intense thunderstorm up here at the minute, I have a go pro type camera set at my door recording it all, although my DSLR is in the boot of my car which my missus took to work with her today

Wheres here?

Ballylad · 26-05-2014 2:44pm

Intense rainfall south of Tullow Carlow , few claps of thunder too

homer simpson · 26-05-2014 2:49pm

Super-Rush wrote: »

Wheres here?

Sorry my location used to be there, Newtowncunningham in Donegal. Where I am is looking right up lough Swilly NE direction right at the thunderstorm, unfortunately its happening mostly behind the rain now so cannot see. Its still fairly intense with claps of thunder every few minutes, getting louder too.

Video · 26-05-2014 3:14pm

vickers209 wrote: »

Yellow warning from met.ie

So that means there's gonna be thunder in dublin and nowhere else

homer simpson · 26-05-2014 3:19pm

Video wrote: »

So that means there's gonna be thunder in dublin and nowhere else

Except for the fact that there has been a fairly intense storm up here in Donegal / Derry for the past 2 odd hours! :pac:

Video · 26-05-2014 3:27pm

homer simpson wrote: »

Except for the fact that there has been a fairly intense storm up here in Donegal / Derry for the past 2 odd hours! :pac:

Yes but you fail to see my sarcasm... if dublin was unaffected and the storms were all over the country except around met eireann headquarters , no warnings would be issued.

Iancar29 · 26-05-2014 3:36pm

homer simpson wrote: »

Phone pic of the storm cloud, also is that a funnel forming / trying to form to the left of the hill top :eek:

Nice shot but looks more like scud , from that view anyways .

Alot pulse storms today , no organization... so might just do a timelapse and leave it at that . Not a day for photogenic storms with the extra moisture and cloud about .

homer simpson · 26-05-2014 3:40pm

Iancar29 wrote: »

Nice shot but looks more like scud , from that view anyways .

Alot pulse storms today , no organization... so might just do a timelapse and leave it at that . Not a day for photogenic storms with the extra moisture and cloud about .

The storm up here has just kicked off big time a bit far away from me but I can still see faint flashes and hear massive rumbles! Seems fairly organised to me, going on since around noon now!

Iancar29 · 26-05-2014 3:46pm

Yup ... but no shear to keep it going for long . That is right over Tyler Collins .... Lets hope he caught something nice!!

John2009 · 26-05-2014 3:53pm

Funnel cloud in the outskirts of Cork City

Reiketsu · 26-05-2014 3:59pm

Thunder here in Dungiven, Co. Derry now. Getting dark.

chris2007 · 26-05-2014 4:01pm

What's the chances of Dublin seeing some action today?

Iancar29 · 26-05-2014 4:17pm

John2009 wrote: »

Funnel cloud in the outskirts of Cork City

Now thats more like it !! What time was it at?

Did u take the shot John?

tylercollins · 26-05-2014 4:20pm

I've been stuck in the house today doing work although been nipping in and out.

Lots of thunder, torrential rain, and lots of flashes but unfortunately nothing photogenic. Setup a timelapse to try catch a bolt or three but nothing

Still quite enjoyable today though

MikeD22 · 26-05-2014 4:25pm

Funnel cloud taken over tolerton carlow area. Near rossmore for those you may know it.

John2009 · 26-05-2014 4:28pm

Iancar29 wrote: »

Now thats more like it !! What time was it at?

Did u take the shot John?

Hi Ian ya I took those shots, roughly about 3:40pm or so looking north towards the Nagle Mountains I think that's what they are,

Rikand · 26-05-2014 4:34pm

A lot of dark stuff building north west and south east of Athlone. Hopefully come together right over the house for some booms!

tylercollins · 27-05-2014 8:49am

I had a fantastic day weather wise, and I barely left the house, everything came to me!

Thunder, lightning, torrential rain in the afternoon.

And 2 funnels in the same place yesterday evening!

I have to say I'm quite pleased!

Torrenial Rain

https://www.youtube.com/watch?v=4q79kqngEpY

Funnel Cloud (ignore the music, I was actually out on a date with a girl and was chatting about something completely different, plus she thought I was mad haha)

https://www.youtube.com/watch?v=D5AqKNVKzKo

Hal1 · 27-05-2014 11:06am

Hey Tyler, get some gtechniq g1 on you're windscreen. It's better than rainx and the water just beads off it. It's supposed to last up to 30k km.

http://gtechniq.com/shop/3s-for-cars/kits/g1-g4-clearvision-screen-kit/

Better visibility in rain, sleet, fog and snow is all about safety. And the safety benefits are not just the obvious ones that self clearing screens bring. Rain and grime free screens also means greatly reduced eye fatigue, which can lead to drowsiness and loss of concentration whilst driving.

Convective/Thunderstorm Discussion 2013/14

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