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Convective/Thunderstorm Discussion : 2019 and Winter 2020

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  • Registered Users Posts: 1,560 ✭✭✭Mizu_Ger


    Big flash of lightning with thunder almost simultaneous here in Dunboyne at about 5:50. Electricity went briefly. House alarms were going off for a while.

    Lashing now. No flashes since.


  • Registered Users Posts: 2,806 ✭✭✭sparrowcar


    Doesn't look like anything beefy enough left for Dublin at this stage.


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




  • Registered Users Posts: 2,792 ✭✭✭Postgrad10


    Similar just now in the north east. Hail, rain and thunder and lightning.


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


    Postgrad10 wrote: »
    Similar just now in the north east. Hail, rain and thunder and lightning.

    Yeah there was one long low peel of thunder with it here too


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  • Moderators, Science, Health & Environment Moderators Posts: 11,766 Mod ✭✭✭✭Meteorite58


    Todays' detected sferics.

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  • Moderators, Science, Health & Environment Moderators Posts: 11,766 Mod ✭✭✭✭Meteorite58


    Loads of CAPE available tomorrow ( By Irish standards anyway ) .

    Ireland's Storm Alley could get lively tomorrow !


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  • Moderators, Science, Health & Environment Moderators Posts: 11,766 Mod ✭✭✭✭Meteorite58


    Weather coming from the NE /E tomorrow , models showing heavy local showers building from early morning. Fair chance of isolated thunderstorms. The SE area in particular showing up for lightning potential.

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  • Moderators, Science, Health & Environment Moderators Posts: 11,766 Mod ✭✭✭✭Meteorite58


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    Day 2 Convective Outlook
    VALID 06:00 UTC Mon 10 Jun 2019 - 05:59 UTC Tue 11 Jun 2019

    ISSUED 21:04 UTC Sun 09 Jun 2019

    ISSUED BY: Dan

    A rather complex pattern evolves across the British Isles on Monday, and while confidence is high in the macroscale detail it is considerably lower for mesoscale detail. The broad upper pattern sees an upper trough over the British Isles, with an upper low initially over Ireland drifting southeast to the Brest peninsula by Monday evening. At the surface, an area of low pressure centred over the Low Countries at midday will push frontal rain across parts of England and Wales from the southeast, with notable warm advection occurring over the southern North Sea on Monday night.


    ... NORTHERN IRELAND / REPUBLIC OF IRELAND / SCOTLAND ...
    Highest confidence during this forecast period exists over these areas, where a combination of cold air aloft combined with surface heating will yield 300-600 J/kg MLCAPE. This, combined with low-level wind convergence and topographic forcing will enable scattered showers to develop, especially from late morning and through the afternoon, before gradually decaying during the evening hours.

    Some sporadic lightning seems likely, especially over Ireland where instability will be greatest. Hail up to 1.0cm in diameter will be possible from the most intense cells, though in general shear will be quite weak and so "pulse-type" convection will tend to be the most favoured mode.


  • Registered Users Posts: 7,095 ✭✭✭pad199207


    Kicking off early this morning near Wicklow


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


    pad199207 wrote: »
    Kicking off early this morning near Wicklow

    Fascinating that cell fired up very quickly almost on the coast all by itself and with no high ground
    It may well be an interesting day


  • Registered Users Posts: 23,370 ✭✭✭✭Kermit.de.frog


    Showers probably developing more away from the immediate east coast as the day goes on due to more onshore wind.

    Just inland though some good storm potential this afternoon.


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


    Showers probably developing more away from the immediate east coast as the day goes on due to more onshore wind.

    Just inland though some good storm potential this afternoon.

    That same shower or a relation is drifting south of Wicklow town now hugging the coast to a few km's inland
    I'm just south of it
    Here's some of its leading edge cauliflower


  • Closed Accounts Posts: 5 Flash dance


    Some fun has started south Cavan. Heavy hail shower and some lightning.


  • Registered Users Posts: 7,095 ✭✭✭pad199207


    Going to have to be well inland today to see any sparks


  • Registered Users Posts: 3,031 ✭✭✭redsteveireland


    Loughrea is under there somewhere.
    Taken from netweather radar, a couple of recent sferics.

    Edit: Sferics are actually from earlier over Ballinasloe in the second image.


  • Registered Users Posts: 6,466 ✭✭✭jimmynokia


    Dublin missing out..


  • Registered Users Posts: 18,079 ✭✭✭✭JCX BXC


    jimmynokia wrote: »
    Dublin missing out..

    Dublin's got plenty of it lately, haven't seen lightning or heard thunder here since October 2017!

    Showers on their way to West Clare, not sure if they're electrified.


  • Registered Users Posts: 8,341 ✭✭✭cml387


    Nice little thunderstorm in Clonmel 20 minutes ago. All lightning in the cloud as far as I could see.


  • Moderators, Science, Health & Environment Moderators Posts: 11,766 Mod ✭✭✭✭Meteorite58


    pad199207 wrote: »
    Going to have to be well inland today to see any sparks


    Mostly inland all right pad apart from the S, SE . Some very heavy rain reported around killarney this afternoon but just picked up one heavy shower here this evening.

    lightningmaps.org

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  • Registered Users Posts: 2,323 ✭✭✭lolie


    Thunderstorm flashing away over Berlin atm.
    Haven't seen any fork lightning yet though, also no sound.
    https://www.wetter.com/hd-live-webcams/deutschland/berlin-tiergarten/533fc0802ad98/
    https://www.wetter.com/hd-live-webcams/deutschland/berlin-landwehrkanal/533fc1a98cd83/

    Few screenshots from the storm after it livened up.


  • Registered Users Posts: 7,095 ✭✭✭pad199207


    There could be some sparks along the Southern and South Eastern Coasts tomorrow evening if deeper convection can develop under cooler air aloft.


  • Registered Users Posts: 2,806 ✭✭✭sparrowcar


    Any prospects for Dublin this eve? Met.ie giving heavy rain with possible thunderstorms this evening.


  • Registered Users Posts: 7,095 ✭✭✭pad199207


    Could have sworn I just heard thunder here in Kildare


  • Registered Users Posts: 2,477 ✭✭✭Kamili




  • Registered Users Posts: 7,095 ✭✭✭pad199207


    Definitely was thunder I heard as there was a second crack. Heavy rain now.


  • Registered Users Posts: 3,426 ✭✭✭ZX7R


    pad199207 wrote: »
    Definitely was thunder I heard as there was a second crack. Heavy rain now.

    Yes you did pad I was up a ladder outside when I heard first crack then the heavens opened , needless to say I was down the ladder quicker than a flash of lightning


  • Registered Users Posts: 2,477 ✭✭✭Kamili


    ZX7R wrote: »
    Yes you did pad I was up a ladder outside when I heard first crack then the heavens opened , needless to say I was down the ladder quicker than a flash of lightning


    Get the fork outta there quick!


  • Moderators, Science, Health & Environment Moderators Posts: 11,766 Mod ✭✭✭✭Meteorite58


    Sunday looking like a lot of potential for convection . LP nearby feeding in rainbands, strong jet overhead with a lot of DLS and LLS available, plenty of vorticity in the mix, cold uppers and strong sun getting through breaks in the cloud , all peaking in the afternoon /early evening producing big heavy showers and sporadic thunderstorms a possibility but as we have seen over the last couple of weeks these in general are often short lived.

    Could be seeing temperatures getting up to 16 or 17C in places during the afternoon.

    Worth keeping an eye on the charts on the lead up to this. With that much shear available might be some possibility of funnel clouds forming .


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  • Moderators, Science, Health & Environment Moderators Posts: 11,766 Mod ✭✭✭✭Meteorite58


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