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Convective/Thunderstorm Discussion : 2019 and Winter 2020

1568101135

Comments

  • Registered Users Posts: 932 ✭✭✭snowstorm445


    Two cracks of thunder there in Ringsend over the last few minutes. Can’t see the lightning though.

    Edit: make that three!


  • Registered Users Posts: 316 ✭✭ROAAAR


    May god help us all


  • Moderators, Home & Garden Moderators, Science, Health & Environment Moderators Posts: 18,155 Mod ✭✭✭✭DOCARCH


    Edit: make that three!

    I heard 3 as well....and now 4.

    Edit: Now 5.

    Decent little storm.


  • Registered Users Posts: 1,920 ✭✭✭The Floyd p


    Dublin 3, claps occuring at faster rates


  • Moderators, Home & Garden Moderators, Science, Health & Environment Moderators Posts: 18,155 Mod ✭✭✭✭DOCARCH


    I have counted 7 (separate) rumbles of thunder now.


  • Registered Users, Registered Users 2 Posts: 13,666 ✭✭✭✭sryanbruen


    Lightning strike in Dublin 3 just now and more thunder.

    EDIT: and another two strikes.


  • Registered Users, Registered Users 2 Posts: 23,918 ✭✭✭✭Kermit.de.frog


    Frequent enough thunder now near Dublin Airport


  • Registered Users, Registered Users 2 Posts: 6,467 ✭✭✭jimmynokia


    I'm getting some footage now.


  • Registered Users, Registered Users 2 Posts: 6,184 ✭✭✭Elmer Blooker


    east of me now, over Clontarf area I'd say and heading towards Howth.
    Decent little storm alright, 20+ rumbles so far.


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  • Registered Users, Registered Users 2 Posts: 6,467 ✭✭✭jimmynokia


    Recorded several strikes going home now will cut and stitch clips together


  • Registered Users, Registered Users 2 Posts: 2,867 ✭✭✭sparrowcar


    Thunder and lightning Swords


  • Registered Users, Registered Users 2 Posts: 254 ✭✭barrier86


    Dublin 1 and Dublin 7 few claps witching the last 10 minutes


  • Registered Users Posts: 227 ✭✭diceyd


    Excellent fork lightning over Dublin Airport


  • Moderators, Recreation & Hobbies Moderators Posts: 11,648 Mod ✭✭✭✭igCorcaigh


    Jealous. Any chance of some sparks down here?


  • Registered Users, Registered Users 2 Posts: 3,801 ✭✭✭iamtony


    Fork lightning over Dublin 17 moving northeast I think. Really long rolling thunder followed between 3 and 7 seconds after the strikes. I could see heavy rain below the cloud but it never fell were I was.
    Have only ever seen forks of lightning 3 or 4 times in my life, it was fierce exciting:)


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  • Registered Users, Registered Users 2 Posts: 7,220 ✭✭✭pad199207


    Tornado alley style skies in Kildare now. Plenty of rotation.


  • Registered Users, Registered Users 2 Posts: 23,918 ✭✭✭✭Kermit.de.frog


    A little more development in the Wicklow Mountains in the last 30 mins might see further late evening storm potential over Dublin.

    Some sparks now southwest of Kilkenny as well.


  • Registered Users, Registered Users 2 Posts: 10,207 ✭✭✭✭Oscar Bravo


    Dublin Airport Metar reporting Thunderstorm at 1730. Temperature at 1700 was 15 degrees. Down to 12 degrees @ 1730


  • Registered Users Posts: 227 ✭✭diceyd


    Just before lightning



    d4yi3sQ.jpg?3


  • Registered Users, Registered Users 2 Posts: 23,918 ✭✭✭✭Kermit.de.frog


    diceyd wrote: »
    Just before lightning



    il_794xN.655683501_2vwq.jpg


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  • Registered Users Posts: 3,415 ✭✭✭Trebor176


    Apart from a shower, it has been sunny in Clondalkin for the last while. No thunder at all.


  • Registered Users, Registered Users 2 Posts: 7,220 ✭✭✭pad199207


    Torrential rain and hail in Kildare now.


  • Registered Users, Registered Users 2 Posts: 6,467 ✭✭✭jimmynokia


    https://i.imgur.com/xYtIFor.png

    Video of some strikes I caught not great but something https://youtu.be/zF9PyRsDs1Y


  • Moderators, Recreation & Hobbies Moderators Posts: 11,648 Mod ✭✭✭✭igCorcaigh


    🀔

    I wonder, how does hail happen during these storms?

    I'm guessing it has to do with the convection that lifts moisture up so high in the clouds?


  • Registered Users, Registered Users 2 Posts: 18,229 ✭✭✭✭JCX BXC


    igCorcaigh wrote: »
    🀔

    I wonder, how does hail happen during these storms?

    I'm guessing it has to do with the convection that lifts moisture up so high in the clouds?

    Exactly that. Winter or summer, it's still subzero high up!


  • Moderators, Recreation & Hobbies Moderators Posts: 11,648 Mod ✭✭✭✭igCorcaigh


    JCX BXC wrote: »
    Exactly that. Winter or summer, it's still subzero high up!

    So, with strong convective upflow, it comes down as hail, or jiggled around to make bigger hail, until it falls out? Even though it's warm down here, yeah?


  • Moderators, Recreation & Hobbies Moderators Posts: 11,648 Mod ✭✭✭✭igCorcaigh


    So is that why in America, they get big hail near tornados...

    Big up draft.

    Is it also the size of the particles in the atmosphere that makes the ominous green or nearly purple colour in the clouds near tornados?

    I know there is such a thing as CAPE, and it is a measure of energy, but not quite sure how or what it means.

    I have an intuitive understanding of shear, it seems to me like a twisting force, or winds shearing against each other. Going in opposite directions, but the meeting point of difference between them.

    I like to think of weather as a way of energy balance. The forces in the atmosphere build up potential (a gradient of energy like a battery), then it releases the excess of energy to bring the system back into balance. Which is weather?


  • Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    Vigorous system moving up through Biscay tonight with convection cleary seen producing thunderstorms. Very heavy rain.

    Qw9mfQG.gif

    PCSboEW.gif

    kCjqiO6.png


  • Registered Users, Registered Users 2 Posts: 7,220 ✭✭✭pad199207


    Fantastic system indeed Meteorite. You can bet though if it was on track for Ireland there would be no sferics/convection just plain old frontal rain.


  • Moderators, Recreation & Hobbies Moderators Posts: 11,648 Mod ✭✭✭✭igCorcaigh


    pad199207 wrote: »
    Fantastic system indeed Meteorite. You can bet though if it was on track for Ireland there would be no sferics/convection just plain old frontal rain.

    I wish I were in Britanny right now :(


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  • Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    pad199207 wrote: »
    Fantastic system indeed Meteorite. You can bet though if it was on track for Ireland there would be no sferics/convection just plain old frontal rain.

    Indeed.

    So hard to get a decent storm here in Ireland, landmass too small in general for good heat to get going and too far from the plumes . One of these days though!



    Tweet below shows just how hard it is to get thunderstorms here.


    https://twitter.com/severeweatherEU/status/1136746217692700691


  • Moderators, Recreation & Hobbies Moderators Posts: 11,648 Mod ✭✭✭✭igCorcaigh


    Indeed.

    So hard to get a decent storm here in Ireland, landmass too small in general for good heat to get going and too far from the plumes . One of these days though !

    I have hope!


  • Registered Users, Registered Users 2 Posts: 7,220 ✭✭✭pad199207


    Indeed.

    So hard to get a decent storm here in Ireland, landmass too small in general for good heat to get going and too far from the plumes . One of these days though!



    Tweet below shows just how hard it is to get thunderstorms here.


    https://twitter.com/severeweatherEU/status/1136746217692700691

    Exactly. Those sferics all the way into North Norway breaks my heart.

    “Sure Ireland is too far away from the continent and too far north from the heat for storms”


  • Moderators, Recreation & Hobbies Moderators Posts: 11,648 Mod ✭✭✭✭igCorcaigh


    Maybe just my age, but I remember a lot of lightning storms as a kid in the early 80's.

    Remember being woken up by not the thunder but the lightning.

    Remember looking out my window, and fork lightning hit my back garden (metal clothes yard)

    And 10 minutes later, it hit it again.

    Lightning does strike twice, it was fascinating!

    And i also remember that night of fork lightning, for hours... 82, maybe 83 or so?


  • Registered Users, Registered Users 2 Posts: 10,207 ✭✭✭✭Oscar Bravo


    Some rough weather on the way over in France, heres a TAF for Les Ajoncs Airport,high winds and thunderstorms

    LFRI 061700Z 0618/0718 11010KT 9999 SCT040
    BECMG 0620/0622 -RA SCT040TCU TEMPO 0622/0702 12015G30KT 4000 RA SCT050CB BKN060 PROB30 0622/0702 TSRA

    BECMG 0702/0705 19015G30KT -SHRA SCT030CB TEMPO 0707/0713 22030G50KT 2000 TSRA BKN018CB

    BECMG 0713/0715 25018G40KT


  • Registered Users, Registered Users 2 Posts: 7,220 ✭✭✭pad199207


    Funnel Cloud, West Cork today

    CA2-CF655-FABE-4685-9-E56-97494734378-C.jpg


  • Moderators, Recreation & Hobbies Moderators Posts: 11,648 Mod ✭✭✭✭igCorcaigh


    pad199207 wrote: »
    Funnel Cloud, West Cork today

    Tornado on the ground! Take cover!

    Jk.

    Beautiful photo!


  • Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    Little or no shear tomorrow but some low level local convergence and cool air aloft creating convection along Atlantic counties with some localized heavy showers. Upper trough becoming negatively tilted during the day.

    Will we see some more short lived pulse type storms ?

    zFgyN6e.png

    T8B4j4X.png

    anim_hpm3.gif

    AiM7TOP.png

    anim_upx1.gif


  • Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    A bit further afield

    Mesmerizing

    Great example of wind shear also.


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  • Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58




  • Registered Users, Registered Users 2 Posts: 1,829 ✭✭✭hawkwing


    2-3 Flashes and loud claps in SE Tipp about 45 mins ago,raining since.


  • Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    Nice line of convection running the length of the country in the brightest warmest middle third and also in a convergence zone.

    GAUetVC.png

    nmm_uk1-3-6-4_qsx2.png


  • Registered Users, Registered Users 2 Posts: 2,381 ✭✭✭lolie


    Nice line of convection running the length of the country in the brightest warmest middle third and also in a convergence zone.

    GAUetVC.

    nmm_uk1-3-6-4_qsx2

    I could see nice convection building up earlier and had a quick look at the radar so went to a good viewing spot.
    Seen 3 distance flashes followed by 3 low rumbles then spotted a nice little funnel cloud which kept changing shape and hung around for nearly 20 minutes.
    482217.jpg
    The cell before the funnel cloud formed to the left of the rain. 482218.jpg

    482219.jpg


  • Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    Fantastic pictures lolie, great representation of the radar returns. Great clear shot of the funnel.


  • Registered Users, Registered Users 2 Posts: 2,381 ✭✭✭lolie


    Fantastic pictures lolie, great representation of the radar returns. Great clear shot of the funnel.

    Thanks, judging by the radar I'd say i was nearly 20km from the funnel cloud.
    I'll upload a video and put a post in the picture forum.

    I'm nearly full sure another smaller funnel cloud formed a few minutes before in the middle of the rain falling from that cell.
    Hard to tell for sure through the rain but i think it was one.
    482228.jpg


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  • Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    Parameters present for thunderstorms tomorrow. Could be fairly widespread too. Passage of a trough with a cold pool of air aloft. Diurnal heating and convergence with reasonable LLS , limited amount of DLS bu some available. Clouds bubbling up in the morning moving in From the Western side of the country and locally heavy showers in the early afternoon , possibly lasting well into the evening as the move to the East of the country.

    PtXYw2l.png

    s61Tuvy.png

    ixwR6xQ.png

    IaROs7J.png

    pR75REw.png

    XZSDQb6.png

    xYSZINw.png


  • Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    I0bh3Cq.gif

    anim_mhs7.gif

    anim_sqs2.gif


  • Registered Users, Registered Users 2 Posts: 6,467 ✭✭✭jimmynokia


    Looks like a line of showers coming from naas heading to Dublin wonder if that will kick off like other day. Some convection out there


  • Closed Accounts Posts: 1,576 ✭✭✭patneve2


    Moderate shower just over here. Loud rumble atm


  • Registered Users, Registered Users 2 Posts: 7,220 ✭✭✭pad199207


    Very heavy rain and hail in Kildare now

    Few rumbles of thunder too


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