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Convective/Thunderstorm Discussion : 2019 and Winter 2020

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Comments

  • Registered Users, Registered Users 2 Posts: 668 ✭✭✭Dank Janniels


    Lovely thick grey clouds around Roscommon direction, I wonder will they traverse the Galway boundary?


  • Moderators, Science, Health & Environment Moderators Posts: 12,066 Mod ✭✭✭✭Meteorite58


    Detected Sferics today

    Lightning Maps.org

    e9CfP9C.png?1


  • Moderators, Science, Health & Environment Moderators Posts: 12,066 Mod ✭✭✭✭Meteorite58


    Possible to get some heavy thundery showers tomorrow more so in the Northern half of the country . Parameters not too good but the moisture is there with diurnal heating , low level convergence and cold temperatures aloft might produce some sporadic lightning in the afternoon. Quite marginal again.


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  • Registered Users, Registered Users 2 Posts: 7,219 ✭✭✭pad199207


    Funnel cloud near Portlaoise today

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  • Moderators, Science, Health & Environment Moderators Posts: 12,066 Mod ✭✭✭✭Meteorite58


    pad199207 wrote: »
    Funnel cloud near Portlaoise today

    Great shot !


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


    Under a huge dark cloud heading for airport its dropping hail.


  • Registered Users, Registered Users 2 Posts: 48,254 ✭✭✭✭km79


    Huge hail in athenry


  • Registered Users, Registered Users 2 Posts: 3,039 ✭✭✭redsteveireland


    km79 wrote: »
    Huge hail in athenry

    Slow moving cell passing over, was hoping for some sparks, appears to be growing on the radar too.


  • Registered Users, Registered Users 2 Posts: 23,898 ✭✭✭✭Kermit.de.frog


    Bubbling up in west Dublin. Could get a rumble of thunder from that.


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  • Registered Users, Registered Users 2 Posts: 48,254 ✭✭✭✭km79


    That shower went on for nearly half an hour in athenry
    Temp dropped 5/6 degrees as well


  • Registered Users, Registered Users 2 Posts: 6,238 ✭✭✭Oneiric 3


    Just looking back at the radar sequence, and apparently I have been under a deluge over the last couple of hours, yet not one single drop of rain has fallen. :confused:
    Sunny, bright 'n' breezy all day.

    New Moon



  • Registered Users, Registered Users 2 Posts: 3,039 ✭✭✭redsteveireland


    Oneiric 3 wrote: »
    Just looking back at the radar sequence, and apparently I have been under a deluge over the last couple of hours, yet not one single drop of rain has fallen. :confused:
    Sunny, bright 'n' breezy all day.

    Are you inside by any chance?


  • Registered Users, Registered Users 2 Posts: 6,238 ✭✭✭Oneiric 3


    Are you inside by any chance?
    I am now. Watching the dust blowing on the roads outside.

    New Moon



  • Closed Accounts Posts: 4,431 ✭✭✭Mortelaro




  • Registered Users, Registered Users 2 Posts: 3,039 ✭✭✭redsteveireland


    Oneiric 3 wrote: »
    I am now. Watching the dust blowing on the roads outside.

    What I wouldn't do for a bit of dust now :)


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  • Registered Users, Registered Users 2 Posts: 6,323 ✭✭✭highdef


    Oneiric 3 wrote: »
    Just looking back at the radar sequence, and apparently I have been under a deluge over the last couple of hours, yet not one single drop of rain has fallen. :confused:
    Sunny, bright 'n' breezy all day.
    Which radar site where you using? Netweather is very often horrifically inaccurate. Met Eireann is the best, IMO. UK met office is not too bad either.


  • Registered Users, Registered Users 2 Posts: 6,238 ✭✭✭Oneiric 3


    highdef wrote: »
    Which radar site where you using? Netweather is very often horrifically inaccurate. Met Eireann is the best, IMO. UK met office is not too bad either.

    'Rain Today' radar (mobile app) and double checked it on the Met Eireann mobile map. Both showed the same, with the former telling me that 'rain will end in 20 mins' when the sun was shining outside!

    There was some shower clouds around the area yesterday but they were way off in terms of positioning on the radar. Not the first time I have seen this happening though and no doubt, the next time we do get a downpour here it'll show just the lightest blue possible on the radar.. as usual. :rolleyes:

    New Moon



  • Moderators, Science, Health & Environment Moderators Posts: 12,066 Mod ✭✭✭✭Meteorite58


    Some convection showing up on Satellite in the SW / W with possible heavy showers in the afternoon. Convergence and afternoon heating might produce a few sporadic sparks especially along coasts.
    Not overly warm here in Tralee but can feel the strength of the sun when clouds open up a bit. More humidity today.


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


    Looks like serious rain in Killarney


  • Moderators, Science, Health & Environment Moderators Posts: 12,066 Mod ✭✭✭✭Meteorite58


    Sure does, skies getting dark here in Tralee, the wind is cooler with a few drops in it .


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  • Registered Users, Registered Users 2 Posts: 1,891 ✭✭✭SlowBlowin


    Heavens opened in Sneem...


  • Closed Accounts Posts: 4,431 ✭✭✭Mortelaro




  • Moderators, Science, Health & Environment Moderators Posts: 12,066 Mod ✭✭✭✭Meteorite58


    Shower formation increasing in the afternoon with diurnal heating , paramaters not ideal for clouds becoming electrified but if they did it would mainly be in the N and E I think.

    vxHDSu8.png


    I would hazard a guess and say if sferics show up it would be mainly in the highlighted circle. Looking on the wrong side of marginal though.


    eRyzlfQ.png


  • Registered Users, Registered Users 2 Posts: 5,970 ✭✭✭Storm 10


    Clap of Thunder over Galway Bay very dark cloud formation


  • Moderators, Science, Health & Environment Moderators Posts: 12,066 Mod ✭✭✭✭Meteorite58


    No sferics detected , scattering of showers . Remained dry here near Tralee and became increasingly bright and sunny as the day went on.


  • Moderators, Science, Health & Environment Moderators Posts: 12,066 Mod ✭✭✭✭Meteorite58


    ECM I reckon ( amateur, but trying !! ) showing the parameters for widespread convective showers, some locally heavy and prolonged and a fair chance of thunderstorms on Monday. A longwave trough approaches from the NW in an increasingly unstable airflow with good low level and deep layer shear and increasing cold air aloft. A day for possibly spotting funnels given the level of shear and vorticity in the atmosphere and the strength of the sun at this time of the year. Looks fairly countrywide too.

    Worth keeping an eye on perhaps.

    ILnMzsK.png


  • Moderators, Science, Health & Environment Moderators Posts: 12,066 Mod ✭✭✭✭Meteorite58


    Monday could be lively. A far cry from the recent quite weather. Should get reports of some locally heavy downpours.

    ECM now forecasting colder air aloft coinciding with peak diurnal heating , trough crossing the country , fresh blustery day with good amounts of low level shear and quite a bit of deep layer shear. Thinking thunderstorms could happen just about anywhere but maybe best in the Northern half of the country where the colder upper air could produce steeper lapse rates. Storms could be big enough to carry on for some distance with heavy rain and hail. Convective gusts locally.



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  • Registered Users Posts: 2,023 ✭✭✭Donegal Storm


    Here's hoping, it's predictably been yet another totally featureless season for thunderstorms, barely a convective shower here never mind a flash of lightning!

    CAPE and LI are low going by GFS but hopefully a few might get lucky on Monday, usually don't see much here from a north westerly at this time of year but hopefully some nice convective cloudscapes at least


  • Registered Users, Registered Users 2 Posts: 3,194 ✭✭✭foxy farmer


    Was it this night last year that we had a brilliant lightning storm in the south?


  • Registered Users, Registered Users 2 Posts: 7,219 ✭✭✭pad199207


    Was it this night last year that we had a brilliant lightning storm in the south?

    Yup 26-27th


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  • Moderators, Science, Health & Environment Moderators Posts: 12,066 Mod ✭✭✭✭Meteorite58


    Plenty of big convective showers tomorrow , quite a blustery day especially in some of those big showers. Hail possible and would expect a sizeable drop in temperature in the showers. Parameters good for thunderstorms with plenty of DLS and LLS, CAPE from 200 J/Kg into the 500 J/Kg in parts, more so in the Northern half of the country all lining up with peak diurnal heating. Wouldn't be surprised if there was a funnel spotted also, plenty of vorticity in the atmosphere over Ireland tomorrow.



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  • Moderators, Science, Health & Environment Moderators Posts: 12,066 Mod ✭✭✭✭Meteorite58


    Was it this night last year that we had a brilliant lightning storm in the south?

    pad199207 wrote: »
    Yup 26-27th



    https://twitter.com/Official_WXUK/status/1132743425328128006


  • Moderators, Science, Health & Environment Moderators Posts: 12,066 Mod ✭✭✭✭Meteorite58


    Thinking that as convection matures whilst crossing the country in the afternoon there could be widespread thunderstorms in the area highlighted , from about 2 to 7 perhaps , starting in the midlands and possible getting stronger as it heads E.

    35p4ih5.png


  • Moderators, Science, Health & Environment Moderators Posts: 12,066 Mod ✭✭✭✭Meteorite58


    Looks like a lot of convergence along the E coast in the afternoon, will see if this translates to more thunderstorms here. Should get up around 16C in the Dublin area.

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


    Teeming in blanch


  • Registered Users, Registered Users 2 Posts: 1,473 ✭✭✭vickers209


    had a heavy shower of rain in wicklow 30 mins ago big dark clouds sun back out now and lots of steam comming off the wet ground.


  • Registered Users, Registered Users 2 Posts: 7,219 ✭✭✭pad199207


    Thundery cell over Wicklow Mountains


  • Registered Users Posts: 205 ✭✭CirrusBusiness


    Thundery cell just passed over Mt Leinster. Nice few flashes out of it. Very heavy rain.


  • Registered Users, Registered Users 2 Posts: 7,219 ✭✭✭pad199207


    Bangs of thunder in the distance here in Kildare now. Getting louder.


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  • Registered Users, Registered Users 2 Posts: 20,421 ✭✭✭✭Rikand


    2 nice storms after rolling through Athlone so far. One around half 12 and another one there now. Few rumbles. Sadly I was stuck inside chained to a desk for both of them :(


  • Registered Users, Registered Users 2 Posts: 7,219 ✭✭✭pad199207


    Some impressive fork lightning visible here now in kildare


  • Moderators, Science, Health & Environment Moderators Posts: 12,066 Mod ✭✭✭✭Meteorite58


    Cell getting going between Nass and Tallaght /Clondalkin


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  • Registered Users, Registered Users 2 Posts: 43,028 ✭✭✭✭SEPT 23 1989


    Overhead Newcastle Dublin


  • Moderators, Home & Garden Moderators, Science, Health & Environment Moderators Posts: 18,150 Mod ✭✭✭✭DOCARCH


    Just heard some distant thunder in Dublin 16.


  • Moderators, Science, Health & Environment Moderators Posts: 12,066 Mod ✭✭✭✭Meteorite58


    Decent Tally so far.

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  • Closed Accounts Posts: 4,431 ✭✭✭Mortelaro


    Long loud thunder just now here near Arklow
    The dogs are not impressed!


  • Moderators, Home & Garden Moderators, Science, Health & Environment Moderators Posts: 18,150 Mod ✭✭✭✭DOCARCH


    Thunder overhead in Dublin 16. Loudest crack of thunder I have heard in years! Scared the bejaysus out of me!!! :)


  • Moderators, Science, Health & Environment Moderators Posts: 12,066 Mod ✭✭✭✭Meteorite58


    Cluster of strikes just now



    wIpQtXO.png


  • Registered Users Posts: 366 ✭✭kittyn


    DOCARCH wrote: »
    Thunder overhead in Dublin 16. Loudest crack of thunder I have heard in years! Scared the bejaysus out of me!!! :)

    And a second lol


  • Registered Users, Registered Users 2 Posts: 1,509 ✭✭✭Reckless Abandonment


    That shower in south Dublin is producing the good. Worst of it just to my south d12 here.


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