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Convective/Thunderstorm Discussion: Autumn/Winter 2016-17

  • 01-09-2016 1:34pm
    #1
    Registered Users Posts: 17,664 ✭✭✭✭ JCX BXC


    Lightning in west clare, loud bangs with torrential rain.


«13456717

Comments

  • Registered Users Posts: 2,310 ✭✭✭ Trogdor


    Carnacalla wrote: »
    Lightening in west clare, loud bangs with torrential rain.

    Can confirm also, down in Kilkee at the moment and there were a good few flashes and bangs. Lost power briefly as well.


  • Registered Users Posts: 5,068 ✭✭✭ Iancar29


    One to watch for tomorrow evening if the preceding frontal system clears well enough.

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    396023.png

    Also some strong shear in place so could line out into a shelf cloud type system like the north had last week.


  • Registered Users Posts: 1,408 ✭✭✭ Jpmarn


    Natural fireworks for Electric Picnic anyone?


  • Moderators, Science, Health & Environment Moderators Posts: 10,455 Mod ✭✭✭✭ Meteorite58


    Could make for an interesting day weather watching with quite a mix of weather across the country.

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  • Registered Users Posts: 21,350 ✭✭✭✭ Mad_Lad


    Looks like another Autumn weather system ? wind and rain , nothing special I'd say.


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  • Moderators, Science, Health & Environment Moderators Posts: 10,455 Mod ✭✭✭✭ Meteorite58


    hECkGCN.png?1

    Day 2 Convective Outlook
    VALID 06:00 UTC Sat 03 Sep 2016 - 05:59 UTC Sun 04 Sep 2016

    ISSUED 20:34 UTC Fri 02 Sep 2016

    ISSUED BY: Chris

    A complex low pressure and associated fronts will cross southern Britain during Saturday bringing heavy rain to places and the potential of some strong gusts to coastal areas in Wales and SW England. Some embedded convection cant be ruled out in the heavy rain as it moves through, but lightning seems unlikely. Once its cleared to the east later in the afternoon and into the evening a highly sheared (40-50kts DLS) and weakly unstable (200 j/kg CAPE) airmass will overspread southern Britain. During this time isolated fast moving sharp showers or a few thunderstorms will be possible. Narrow lines of more intense convection may develop through the evening and first part of the night in a zone from southern Ireland, across north Wales, Liverpool Bay and over to the Humber estuary. Given the shear in this zone a few weak tornadoes cannot be ruled out.


  • Moderators, Science, Health & Environment Moderators Posts: 10,455 Mod ✭✭✭✭ Meteorite58


    18.5C here near Tralee already with some clear patches developing letting sunshine through, humid. So I wonder is the general SE area most likely to get the most conducive conditions for activity today given that it is in an area with the most wind sheer and with the highest lifted Index reading or is it more likely for a wider distribution of some activity if favorable conditions materializes ?


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    Some early morning sferics off the W coast and a couple of recent ones in the last couple of hours...

    sB2Jzs0.gif

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  • Registered Users Posts: 5,068 ✭✭✭ Iancar29


    Yeah it'll be interesting to see as even though the best instability and shear is there in the SE , the PPN seems to be more northwards... If its up this way ill be out keeping an eye on it :)
    396062.png


  • Registered Users Posts: 312 ✭✭ Makapakka


    Absolutely horrible in Dublin5! Love it :P


  • Registered Users Posts: 5,068 ✭✭✭ Iancar29


    This is the area of interest.

    396065.jpg


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  • Registered Users Posts: 9,391 ✭✭✭ Oscar Bravo


    An updated forecast for Knock airport is now forecasting thunderstorms between 4pm and 6pm,with Dublin airport forecasting them between 6pm and 8pm


  • Registered Users Posts: 47,641 ✭✭✭✭ km79


    Some potent looking cells close to moving ashore west of galway/mayo
    Hope they keeping tracking north as they well drop a LOT of rain
    One of has a white dot in the middle !


  • Registered Users Posts: 9,391 ✭✭✭ Oscar Bravo


    Very black out towards croagh Patrick now, very heavy showers on the way


  • Registered Users Posts: 5,454 ✭✭✭ Storm 10


    Gone very dark to the West of Galway City now, waiting !!!


  • Moderators, Science, Health & Environment Moderators Posts: 10,455 Mod ✭✭✭✭ Meteorite58


    Sparks off the SE coast , seems to be heading for Wales though.


  • Registered Users Posts: 5,454 ✭✭✭ Storm 10


    Damp squib very heavy rain but no sparks


  • Registered Users Posts: 1,789 ✭✭✭ squarecircles


    Thunderstorm now in louisburgh co mayo


  • Registered Users Posts: 1,733 ✭✭✭ sunbeam


    Very dark here in Achill with rumbles in the distance. Rain is just starting.


  • Registered Users Posts: 1,046 ✭✭✭ AirBiscuit


    Had a clap of thunder that rattled the windows near Achill


  • Registered Users Posts: 47,641 ✭✭✭✭ km79


    The ominous looking squall line whipped through east Galway without much rain
    Just escaped the worst of it thankfully


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  • Registered Users Posts: 5,068 ✭✭✭ Iancar29


    km79 wrote: »
    The ominous looking squall line whipped through east Galway without much rain
    Just escaped the worst of it thankfully

    Did it have any photogenic structure to it?


  • Registered Users Posts: 47,641 ✭✭✭✭ km79


    Iancar29 wrote: »
    Did it have any photogenic structure to it?

    Not really I think we got the "skinny" bit in the middle so not much to see
    I could make out the actually cloud bringing the rain . It was distinct from the wall of cloud around the rest of the sky.
    There was a tiny bit of a "tail" on it which was quite cool
    Moved through quick


  • Registered Users Posts: 9,391 ✭✭✭ Oscar Bravo


    recent strike near mountbellew


  • Registered Users Posts: 9,391 ✭✭✭ Oscar Bravo


    torrential rain/spot flooding in Castlebar


  • Registered Users Posts: 9,391 ✭✭✭ Oscar Bravo


    Whole load of new strikes down towards Achill


  • Registered Users Posts: 9,391 ✭✭✭ Oscar Bravo


    Thunderstorm down towards Belmullet


  • Registered Users Posts: 2,524 ✭✭✭ Darwin


    Squall line just passed though here (west Laois), very intense rain and extremely gusty wind but no lightning. Lasted all of 3 minutes!


  • Registered Users Posts: 6,030 ✭✭✭ Oneiric 3


    Very intense rain in Tuam earlier with flash flooding. Can just about make out an anvil to my north but clouds closing in rapidly again.

    New Moon



  • Registered Users Posts: 6,030 ✭✭✭ Oneiric 3


    And here we go again. Heavens have just opened with a rainfall rate of 103mm/ph.

    New Moon



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  • Registered Users Posts: 539 ✭✭✭ robclay26


    Flash lightning 18:55 and 3 rumbles of thunder since. Delvin co Westmeath


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