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Storm Francis - 24th/25th August 2020

1356

Comments

  • #102
    igCorcaigh
    Moderators, Recreation & Hobbies Moderators Posts: 11,649 Mod ✭✭✭✭igCorcaigh


    As an ignoramus, I thought that the tighter the isobars, the higher the wind?
    So how come that the core wind section of the storm looks like having similarly tightly packed isobars as in other areas?


  • #103
    Gaoth Laidir
    Registered Users, Registered Users 2 Posts: 8,219 ✭✭✭Gaoth Laidir


    igCorcaigh wrote: »
    As an ignoramus, I thought that the tighter the isobars, the higher the wind?
    So how come that the core wind section of the storm looks like having similarly tightly packed isobars as in other areas?

    In the pressure animation above? The gradient is tighter along the south in that.


  • #104
    pad199207
    Registered Users, Registered Users 2 Posts: 7,221 ✭✭✭pad199207


    Status Yellow - Wind warning for Munster, Dublin, Carlow, Kilkenny, Wexford and Wicklow

    Met Éireann Weather Warning

    Very windy or stormy conditions are expected on Tuesday as Storm Francis crosses Ireland. Southwest winds veering westerly, reaching mean speeds of 55 to 65km/h, will bring widespread gusts of 90 to 110km/h (and possibly higher in exposed areas).

    Valid: 06:00 Tuesday 25/08/2020 to 19:00 Tuesday 25/08/2020

    Issued: 19:20 Monday 24/08/2020


  • #105
    igCorcaigh
    Moderators, Recreation & Hobbies Moderators Posts: 11,649 Mod ✭✭✭✭igCorcaigh


    Gaoth Laidir wrote: »
    In the pressure animation above? The gradient is tighter along the south in that.

    Not just tonight, but generally.

    I can see tight isobars, but the core area doesn't seem to my eye to be any tighter.
    Just wondering if there is another factor at play that I am missing.

    As I said, ignoramus.


  • #106
    Gaoth Laidir
    Registered Users, Registered Users 2 Posts: 8,219 ✭✭✭Gaoth Laidir


    igCorcaigh wrote: »
    Not just tonight, but generally.

    I can see tight isobars, but the core area doesn't seem to my eye to be any tighter.
    Just wondering if there is another factor at play that I am missing.

    As I said, ignoramus.

    Remember that for a perfectly symmetrical circular storm with an equal gradient all the way around it, the wind will always be stronger to the right of its direction of motion. So if it's moving northeastwards the strongest winds will be in the southeastern quadrant. This is because the system's motion over the ground is added to the gradient wind (a kind of a Doppler effect).


  • #107
    Larbre34
    Registered Users, Registered Users 2 Posts: 24,363 ✭✭✭✭Larbre34


    Thats a lot of friggin rain. Wouldn't be shocked to see a few bog bursts and minor road bridges taken out as we saw in Mayo and Donegal during poor summers of the past decade.


  • #108
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    As for thunderstorms : In my opinion ECM showing meager CAPE levels but a lot of low and deep level shear with decent lapse rates. Looks like with a combination of frontal forcing Orographic lift in the SW, high Theta E , buckets of shear then storms might break out in the SW after midnight and spreading up the country .



    Might get a few pics of funnels or a report of some weak tornadic damage.



    2LD6TsY.gif

    1dDkCfo.gif

    Lk9L0YQ.png

    HJFI2FF.gif


  • #109
    Gaoth Laidir
    Registered Users, Registered Users 2 Posts: 8,219 ✭✭✭Gaoth Laidir


    Latest analysis. 991 hPa and on track.

    ukmo_nat_fax_2020082418_000.png

    This was ex-Hurricane Charley making its approach back exactly 34 years ago today.

    524161.png


  • #110
    Pangea
    Registered Users, Registered Users 2 Posts: 5,565 ✭✭✭Pangea


    Oneiric 3 wrote: »
    https://www.youtube.com/watch?v=oYw73KGr-Mw

    Why did the UK met office name it before Met Éireann?


  • #111
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    Rain steadily getting heavier, 3mm so far .

    A fair height in the approaching cloud , back edge of the warm front I think ?


    P6xswws.png

    v2et1NB.gif


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  • #112
    leahyl
    Registered Users, Registered Users 2 Posts: 14,322 ✭✭✭✭leahyl


    Rain getting quite heavy now in Cork City


  • #113
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    Steady moderate rain here near Tralee, 7mm so far

    998.3 hPa Falling Rapidly

    IFf51FC.gif


    pression2_uk_opm0.png


  • #114
    JanuarySnowstor
    Registered Users Posts: 2,981 ✭✭✭JanuarySnowstor


    In the 80s it would be a called a wet and windy night!!
    Naming hurricanes in the US makes sense, but here its just ridiculous.
    Don't get me wrong we get bad storms like last week but the word stormy will do!


  • #115
    SleetAndSnow
    Registered Users Posts: 4,693 ✭✭✭SleetAndSnow


    Heavy rain in Cork City, not sure for how long though as I was out with some friends but so far no flooding and not excessively heavy but was told it was heavier a while ago and died down a bit. Definitely a wet rotten night though


  • #116
    Mam of 4
    Registered Users, Registered Users 2 Posts: 21,953 ✭✭✭✭Mam of 4


    Raining away here , Laois , gets heavier then eases off again .


  • #117
    froog
    Registered Users Posts: 3,784 ✭✭✭froog


    thick wet heavy rain in cork. not much of a wind at all.


  • #118
    mcburns07
    Registered Users, Registered Users 2 Posts: 2,097 ✭✭✭mcburns07


    Torrential in East Cork now


  • #119
    SleetAndSnow
    Registered Users Posts: 4,693 ✭✭✭SleetAndSnow


    Rains definitely increased in intensity since my last post, heavy now


  • #120
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    Just coming up to 10mm now here near Tralee.


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  • #121
    SleetAndSnow
    Registered Users Posts: 4,693 ✭✭✭SleetAndSnow


    First gust just hit the house too and trees blowing


  • #122
    irishfeen
    Registered Users Posts: 8,061 ✭✭✭irishfeen


    JanuarySnowstor wrote: »
    In the 80s it would be a called a wet and windy night!!
    Naming hurricanes in the US makes sense, but here its just ridiculous.
    Don't get me wrong we get bad storms like last week but the word stormy will do!

    To be honest I’m starting to agree, I thought naming the storms was a good idea but now it’s after losing its impact.

    Personally I think storms should only be named in Ireland if it shows clear red alert potential. It would mean Met Éireann naming a storm would be significant.


  • #123
    SlowBlowin
    Registered Users, Registered Users 2 Posts: 1,891 ✭✭✭SlowBlowin


    Large amounts of continuous heavy rain up here, my weather station is broken, but there are a good few inches in the wheelbarrow which was empty at 19:00.

    We cleared and re dug the drains above the house on the mountain a few days ago, just been out and the drains are flowing fast and over topping.. Hopefully it will start to ease in a few hours, but I will have to stay up and check the drains every hour.

    No wind to speak of - just rain..

    600 FT ASL - McGillycuddy Reeks - West Kerry


  • #124
    Widdensushi
    Registered Users, Registered Users 2 Posts: 5,301 ✭✭✭Widdensushi


    Tonight is more about rain and possible flooding


  • #125
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    Some rain falling on the mountains and high ground.

    MbhBnma.png


  • #126
    [Deleted User]
    Posts: 31,118 ✭✭✭✭ [Deleted User]


    1.7mm so far just west of Athlone.


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  • #127
    torres9kop
    Registered Users Posts: 384 ✭✭torres9kop


    No rain in D4 yet the radar has us covered. Any explanations?


  • #128
    kifi
    Registered Users Posts: 508 ✭✭✭kifi


    torres9kop wrote: »
    No rain in D4 yet the radar has us covered. Any explanations?

    The same just two miles north of Trim. Dry as a bone but radar shows otherwise?


  • #129
    SlowBlowin
    Registered Users, Registered Users 2 Posts: 1,891 ✭✭✭SlowBlowin


    The rain here has now moderated to very heavy, about 30 minutes ago it was extreme, you can see a band of red on the radar in west Kerry heading for Killarney.

    600 FT ASL - McGillycuddy Reeks - West Kerry


  • #130
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    https://twitter.com/convectivewx/status/1298007500369911808?s=20


  • #131
    mickger844posts
    Moderators, Science, Health & Environment Moderators Posts: 4,467 Mod ✭✭✭✭mickger844posts


    7.6mm so far with a rain rate of 2.5mm/h



    https://www.waterfordcityweather.com


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  • #132
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    torres9kop wrote: »
    No rain in D4 yet the radar has us covered. Any explanations?

    Radar picks up rain that does not hit the ground also. Being at the leading edge this is probably falling from high up and evaporating before reaching the ground.


  • #133
    JP Liz V1
    Registered Users, Registered Users 2 Posts: 87,516 ✭✭✭✭JP Liz V1


    Heavy rain Cork, flooding again
    https://forumofgames.com/




  • #134
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    Latest AROME 18Z just rolling out

    Heavy rain in Tralee, 14mm

    anim_djk7.gif

    anim_tbr1.gif


    anim_jve3.gif

    aromehd-52-24-0_ulr0.png


  • #135
    Graces7
    Registered Users, Registered Users 2 Posts: 32,634 ✭✭✭✭Graces7


    Listening to windblown rain out here Atmospheric. Snugged in. This is only really just starting. It is certainly louder than a few minutes ago. But a youngster yet.


  • #136
    SleetAndSnow
    Registered Users Posts: 4,693 ✭✭✭SleetAndSnow


    Cork airport at 17.1 up to 11pm already

    https://twitter.com/CorkSafetyAlert/status/1298025749899882502?s=20
    https://twitter.com/CorkSafetyAlert/status/1298026057312993286?s=20

    And so it begins with the already very waterlogged Cork County. Very heavy rain now


  • #137
    [Deleted User]
    Posts: 31,118 ✭✭✭✭ [Deleted User]


    Deleted User wrote: »
    1.7mm so far just west of Athlone.
    Now 4mm


  • #138
    cyclops999
    Registered Users Posts: 402 ✭✭cyclops999


    [Deleted User] wrote: »
    Now 4mm

    Not seen the Shannon this high so early in Athlone


  • #139
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    https://twitter.com/MetEireann/status/1298027728185237504?s=20


  • #140
    [Deleted User]
    Posts: 31,118 ✭✭✭✭ [Deleted User]


    cyclops999 wrote: »
    Not seen the Shannon this high so early in Athlone
    Just wait until the water cascades down from the north, I expect it will be rising for several days after this event is over.


  • #141
    Xtrail14
    Banned (with Prison Access) Posts: 253 ✭✭Xtrail14


    Deleted User wrote: »
    Just wait until the water cascades down from the north, I expect it will be rising for several days after this event is over.

    Not every river from north goes south, think about it.


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  • #142
    UrbanSprawl
    Registered Users, Registered Users 2 Posts: 1,899 ✭✭✭UrbanSprawl


    Xtrail14 wrote: »
    Not every river from north goes south, think about it.

    mind boogling many flow south to north down under and many just flow where ever they please


  • #143
    Graces7
    Registered Users, Registered Users 2 Posts: 32,634 ✭✭✭✭Graces7


    It is actually rather... comforting... snug abed listening to the elements howling and spattering, with the only real hazard the inevitable arrival of a certain long haired cat who will insist on sharing my bed.

    Wishing all here safety and ease this night. And hoping it does not exceed safe limits.


  • #144
    [Deleted User]
    Posts: 31,118 ✭✭✭✭ [Deleted User]


    Xtrail14 wrote: »
    Not every river from north goes south, think about it.
    Look up the catchment area of the Shannon basin north of Athlone.

    edit: I looked it up for you.
    shannon-catchment-area.png


  • #145
    Danzy
    Registered Users, Registered Users 2 Posts: 14,133 ✭✭✭✭Danzy


    Pissing rain in North Cork in a way that sounds fantastic but will hit my land hard.


  • #146
    Akrasia
    Registered Users, Registered Users 2 Posts: 22,599 ✭✭✭✭Akrasia


    Heavy rain falling around ennis for the last 45 mins, local flooding is already guaranteed, hopefully it will clear before morning


  • #147
    SlowBlowin
    Registered Users, Registered Users 2 Posts: 1,891 ✭✭✭SlowBlowin


    Rain really calmed down now, not even heavy just light rain.


    600 FT ASL - McGillycuddy Reeks - West Kerry


  • #148
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,073 Mod ✭✭✭✭Meteorite58


    Clearance arriving gin the SW, looks like Convection off the N Kerry/ Clare coast

    BI5cwWL.gif

    nyjL0JU.gif


  • #149
    sryanbruen
    Registered Users, Registered Users 2 Posts: 13,666 ✭✭✭✭sryanbruen


    47.7mm at Valentia according to WOW. Would make a top 3 wettest August day.

    Photography site - https://www.sryanbruenphoto.com/

    Weather photo portfolio - https://sryanbruen.myportfolio.com/weather-1



  • #150
    2013Lara
    Closed Accounts Posts: 456 ✭✭2013Lara


    Very heavy rain coastal wicklow.


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  • #151
    smellyoldboot
    Banned (with Prison Access) Posts: 1,075 ✭✭✭smellyoldboot


    Bit windy. Spot of rain. Waterford.


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