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Snow showers, 27th/28th

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    #32
    highdef
    Registered Users Posts: 6,168 ✭✭✭highdef


    munsterlegend wrote: »
    Was there snow too?!

    Gaoth Laidir's message doesn't suggest it. What made you think to ask the question?


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    #33
    munsterlegend
    Registered Users Posts: 6,143 ✭✭✭munsterlegend


    highdef wrote: »
    Gaoth Laidir's message doesn't suggest it. What made you think to ask the question?

    This is snow showers thread for tomorrow and Monday. It was a joke!


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    #34
    Danno
    Registered Users Posts: 8,913 ✭✭✭Danno


    munsterlegend wrote: »
    This is snow showers thread for tomorrow and Monday. It was a joke!

    Okay, probably flew over the heads of a few...

    ...anyways, back on track. The 18Z GFS is showing potential for the back end of the second cold front to turn to snow as it sinks south later in the wee hours.

    Cue the comments about the ground being too wet to take snow, but it does happen if snowfall is sustained and prolonged enough.

    Any die-hards staying up?


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    #35
    Nqp15hhu
    Banned (with Prison Access) Posts: 2,254 ✭✭✭Nqp15hhu


    BFS has snow in their TAF

    “EGAA 261704Z 2618/2718 23020G35KT 9999 FEW015 SCT025 TEMPO 2618/2623 6000 RA BKN014 TEMPO 2618/2620 23028G45KT PROB40 TEMPO 2618/2623 4000 +RA RADZ BECMG 2620/2624 24014KT TEMPO 2700/2709 BKN007 PROB40 TEMPO 2700/2716 25017G27KT 1500 SHRASN -SHSN BKN003 TEMPO 2716/2718 0800 SHSN BKN000”


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    #36
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 11,857 Mod ✭✭✭✭Meteorite58


    Temperatures coming down if somewhat slowly, radar picking up sleet although may not be falling as sleet at ground level.

    https://wow.met.ie/

    Netweather


    gKSDMfB.png

    4xnPa0T.png


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    #37
    Gaoth Laidir
    Registered Users Posts: 8,219 ✭✭✭Gaoth Laidir


    From Met Éireann's aviation for 00Z tonight. SHowing a showery trough out to the northwest, with the 1000-ft zero istotherm at around 59N 11W (not shown).

    Snow showers confined to the Scottish highlands for tonight.

    537255.png


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    #38
    Kermit.de.frog
    Registered Users Posts: 23,544 ✭✭✭✭Kermit.de.frog


    Danno wrote: »
    Okay, probably flew over the heads of a few...

    ...anyways, back on track. The 18Z GFS is showing potential for the back end of the second cold front to turn to snow as it sinks south later in the wee hours.

    Cue the comments about the ground being too wet to take snow, but it does happen if snowfall is sustained and prolonged enough.

    Any die-hards staying up?

    I'll stay up a while, might be some back edge flakes.


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    #39
    Gaoth Laidir
    Registered Users Posts: 8,219 ✭✭✭Gaoth Laidir


    munsterlegend wrote: »
    This is snow showers thread for tomorrow and Monday. It was a joke!

    Yep, I posted in the wrong thread!


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    #40
    Gaoth Laidir
    Registered Users Posts: 8,219 ✭✭✭Gaoth Laidir


    The UKMO's aviation chart for 06Z has an area including all but the midlands and southeast of Ireland in which it gives occasional heavy sleet and hail showers, with occasional heavy snow showers "mainly on mountains". Not allowed to post it due to copyright.


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    #41
    Nqp15hhu
    Banned (with Prison Access) Posts: 2,254 ✭✭✭Nqp15hhu


    Temps gradually coming down. It will be interesting to see if there is any snow on the hills in the morning.


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    #42
    Kermit.de.frog
    Registered Users Posts: 23,544 ✭✭✭✭Kermit.de.frog


    Snow level falling now across Ulster and north Connaught

    lastsnowradar_uk.gif

    Still a balmy 5.1c here in north Dub


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    #43
    Pangea
    Registered Users Posts: 5,565 ✭✭✭Pangea


    Sleet/hail banging bedroom window here in Donegal, winter is here


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    #44
    Oscar Bravo
    Registered Users Posts: 10,080 ✭✭✭✭Oscar Bravo


    Knock down to 3 degrees at midnight. Belmullet down to 4.


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    #45
    red_bairn
    Registered Users Posts: 2,342 ✭✭✭red_bairn


    Moving into our first home tomorrow and have booked a van to bring up some furniture into Naas. Is it mainly just a wind event at the moment with snow/sleet showers due later in the evening?


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    #46
    Shepards Delight
    Registered Users Posts: 56 ✭✭Shepards Delight


    Claremorris reading 4c also . I do see a very wet sunday morning on the cards in this part of the country . Im expecting a deluge at 8-9 am . Tonight has calmed down alot from Storm Um b r ella . Ground is now saturated enough snow should appear soon going by the Weather Boffins . We shall see .😊


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    #47
    Nqp15hhu
    Banned (with Prison Access) Posts: 2,254 ✭✭✭Nqp15hhu


    Snowing on glenshane pass already. https://trafficwatchni.com/twni/cameras

    There seems to be negative dew points west of me but my dew point is stubbornly sticking to 2c.


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    #48
    Larbre34
    Registered Users Posts: 23,845 ✭✭✭✭Larbre34


    red_bairn wrote: »
    Moving into our first home tomorrow and have booked a van to bring up some furniture into Naas. Is it mainly just a wind event at the moment with snow/sleet showers due later in the evening?

    You won't see sleet or snow in Naas. Cold rain and bitter winds, but thats it.


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    #49
    Rebelbrowser
    Registered Users Posts: 3,135 ✭✭✭Rebelbrowser


    Really heavy rain the last hour in Cork


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    #50
    Goldfinch8
    Registered Users Posts: 529 ✭✭✭Goldfinch8


    Just had the first wintry type shower rattle through here not so long ago in central Mayo. Predominantly of hail but a few sleety flakes in the mix also.


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    #51
    Kermit.de.frog
    Registered Users Posts: 23,544 ✭✭✭✭Kermit.de.frog


    Larbre34 wrote: »
    You won't see sleet or snow in Naas. Cold rain and bitter winds, but thats it.

    MRGRUMPYPRINT_59883df8-2737-45a5-911d-c479c68079cd_grande.jpg?v=1555611992


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    #52
    Kermit.de.frog
    Registered Users Posts: 23,544 ✭✭✭✭Kermit.de.frog


    The showers will get more and more wintry throughout the night, sleet and snow to low levels by morning. Should be an interesting day tomorrow seeing who gets what and ends up on the right side of marginal.


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    #53
    Nqp15hhu
    Banned (with Prison Access) Posts: 2,254 ✭✭✭Nqp15hhu


    Temperatures are down another degree, but dew points and wet bulbs are still positive (1.9c.). I checked local Weather Wunderground stations and they are all positive dew points, so I think the vasaila sites have a low humidity bias.


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    #54
    Gaoth Laidir
    Registered Users Posts: 8,219 ✭✭✭Gaoth Laidir


    Met Éireann's 06Z chart is similar to the UKMO's. An occluded front approaching the far northwest, with frequent rain/hail showers, with occasional snow showers mainly on mountains. The 0-degree isotherm is at around 2000 ft throughout Ireland.


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    #55
    Nqp15hhu
    Banned (with Prison Access) Posts: 2,254 ✭✭✭Nqp15hhu


    Hmm maybe I am being too optimistic but temps are gradually falling consistently. Wouldn’t <3c infer a freezing level of around 1500 feet?

    I can definitely see snow falling to at least 100 metres by morning. Probably already snowing down to 200 metres.


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    #56
    Rougies
    Registered Users Posts: 2,674 ✭✭✭Rougies


    Nqp15hhu wrote: »
    Hmm maybe I am being too optimistic but temps are gradually falling consistently. Wouldn’t <3c infer a freezing level of around 1500 feet?

    I can definitely see snow falling to at least 100 metres by morning. Probably already snowing down to 200 metres.


    A good rule of thumb is -0.5C per 100m. So ~3C at sea level would put freezing level at about 600m. This is the level where snow will stick and stay stuck. At lower levels there would be snow to wet snow to sleet to rain, with the snow zone compromising of gradually decreasing stickiness and stuckness properties


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    #57
    Danno
    Registered Users Posts: 8,913 ✭✭✭Danno


    Rougies wrote: »
    A good rule of thumb is -0.5C per 100m. So ~3C at sea level would put freezing level at about 600m. This is the level where snow will stick and stay stuck. At lower levels there would be snow to wet snow to sleet to rain, with the snow zone compromising of gradually decreasing stickiness and stuckness properties

    True that, but you have to factor in heavier bursts that can bring down the freezing level, then couple in areas that can maintain a sub 1c air column because of geographical features.

    It all gets messy in these marginal set-ups.

    The ever eternal optimists cling on to these blind-spots. (I do sometimes too.)


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    #58
    Rougies
    Registered Users Posts: 2,674 ✭✭✭Rougies


    Danno wrote: »
    True that, but you have to factor in heavier bursts that can bring down the freezing level, then couple in areas that can maintain a sub 1c air column because of geographical features.

    It all gets messy in these marginal set-ups.

    The ever eternal optimists cling on to these blind-spots. (I do sometimes too.)


    Yeah of course, evaporative cooling is great. I would say most of Ireland's snowfall at low levels relies on it to sway the marginality in favour..


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    #59
    RobertKK
    Registered Users Posts: 33,730 ✭✭✭✭RobertKK


    A sleet shower here in north east Kilkenny on high ground.


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    #60
    pad199207
    Registered Users Posts: 7,127 ✭✭✭pad199207


    Just got woken up by torrential hail in Kildare


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    #61
    red_bairn
    Registered Users Posts: 2,342 ✭✭✭red_bairn


    Larbre34 wrote: »
    You won't see sleet or snow in Naas. Cold rain and bitter winds, but thats it.

    :)


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