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Looking Wintry from November 18th

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    #32
    highdef
    Registered Users Posts: 6,158 ✭✭✭highdef


    This was at home in North Kildare last night. It stuck very readily on the adjacent hill which peaks at approx 60 metres higher than the location of the video.


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    #33
    [Deleted User]
    Posts: 25,611 ✭✭✭✭ [Deleted User]


    Bit of snow overnight in Dundalk.


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    #34
    average_runner
    Registered Users Posts: 12,845 ✭✭✭✭average_runner


    Deleted User wrote: »
    Bit of snow overnight in Dundalk.


    Had a shower in Lucan last night also, around 1.30 am


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    #35
    davidsr20
    Registered Users Posts: 768 ✭✭✭davidsr20


    It's snowing in Athlone again I heard.


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    #36
    stylie
    Registered Users Posts: 689 ✭✭✭stylie


    Some snow/sleet on the cars around Saggart and City West this morning.


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    #37
    DellyBelly
    Registered Users Posts: 2,873 ✭✭✭DellyBelly


    Slight snowfall here about an hour ago. Stopped now though thankfully


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    #38
    Macy0161
    Registered Users Posts: 9,290 ✭✭✭Macy0161


    Woke up to snow on the cars and grass in Roundwood.


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    #39
    [Deleted User]
    Posts: 16,720 ✭✭✭✭ [Deleted User]


    Macy0161 wrote: »
    Woke up to snow on the cars and grass in Roundwood.

    Just a dusting or is there much?


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    #40
    Macy0161
    Registered Users Posts: 9,290 ✭✭✭Macy0161


    Dónal wrote: »
    Just a dusting or is there much?
    Just a dusting. I'm in town in work now, but wouldn't imagine it lasting once the sun came up. Wasn't sticking on the tarmac - cars, decking, grass was all really at our level anyway. Enough to write username and date, if I'd thought of it at 7am! :) Wasn't expecting it, as everything I read suggested the showers wouldn't make it as far as us.


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    #41
    hatrickpatrick
    Registered Users Posts: 17,797 ✭✭✭✭hatrickpatrick


    Just wondering, scientifically speaking what caused the unusual weather in 2010? What happened in the atmosphere that wouldn't usually happen?


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    #42
    starskey77
    Registered Users Posts: 143 ✭✭starskey77


    my barometer was dropping this mourning thats wet and cold right
    sorry im a novice


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    #43
    Frank Garrett
    Banned (with Prison Access) Posts: 226 ✭✭Frank Garrett


    starskey77 wrote: »
    my barometer was dropping this mourning thats wet and cold right
    sorry im a novice

    The barometer measures atmospheric pressure.


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    #44
    starskey77
    Registered Users Posts: 143 ✭✭starskey77


    i work outdoors its nice this spell of weather invigorating


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    #45
    hatrickpatrick
    Registered Users Posts: 17,797 ✭✭✭✭hatrickpatrick


    Obviously FI, but this is the kind of thing which (ironically) gives me a warm, fuzzy feeling this time of year ;)

    EDIT: Newbish question, but if we're looking for the temperature near the ground which will be the temperature we actually experience, is the 850hpa chart the one to be looking at?

    gfs-1-312.png?6


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    #46
    compsys
    Registered Users Posts: 1,042 ✭✭✭compsys


    It depends on the time of year (and therefore the strength of the sun).

    In general an 850 upper temp of -8 in winter would be around 1 degree at ground level.

    The closer you get to spring the warmer it gets. A -8 upper on a fine sunny day in early March for example would be around 3 or 4 degrees.


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    #47
    hatrickpatrick
    Registered Users Posts: 17,797 ✭✭✭✭hatrickpatrick


    compsys wrote: »
    It depends on the time of year (and therefore the strength of the sun).

    In general an 850 upper temp of -8 in winter would be around 1 degree at ground level.

    The closer you get to spring the warmer it gets. A -8 upper on a fine sunny day in early March for example would be around 3 or 4 degrees.

    Right, but when you look at say Met.ie and they give you a temperature forecast, which temperature chart on meteociel would be the closest thing to it?

    For instance, based on what you're saying, an 850hpa temp wouldn't result in a cold enough ground temperature for the snow to actually stick, right?

    These are the different charts one can look at:

    [ z500-PRMSL ]- [ Temp. 850hPa ]- [ Précipitations ] - [ Résumé ] - [ Jet Stream ]- [ Altitude 1.5PVU ]- [ Iso0°c et z500/1000 ]
    [ ThetaE 850hPa ] - [ SBCAPE et LI ] - [ Temp. 2m ] - [ Temp. 10hPa stratosphère ] - [ Anomalie z500 ] - [ Temp 500hPa ] NEW!
    - [ Archives ] - [ Carte Hémi. Nord ]


    Based on that list, which one do I want to be checking in order to see temperature that would be relevant to whether or not any potential snow would actually be able to remain on the ground for long? :D


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    #48
    rickdangerouss
    Registered Users Posts: 244 ✭✭rickdangerouss


    hatrickpatrick wrote: »
    Right, but when you look at say Met.ie and they give you a temperature forecast, which temperature chart on meteociel would be the closest thing to it?

    For instance, based on what you're saying, an 850hpa temp wouldn't result in a cold enough ground temperature for the snow to actually stick, right?

    These are the different charts one can look at:

    [ z500-PRMSL ]- [ Temp. 850hPa ]- [ Précipitations ] - [ Résumé ] - [ Jet Stream ]- [ Altitude 1.5PVU ]- [ Iso0°c et z500/1000 ]
    [ ThetaE 850hPa ] - [ SBCAPE et LI ] - [ Temp. 2m ] - [ Temp. 10hPa stratosphère ] - [ Anomalie z500 ] - [ Temp 500hPa ] NEW!
    - [ Archives ] - [ Carte Hémi. Nord ]


    Based on that list, which one do I want to be checking in order to see temperature that would be relevant to whether or not any potential snow would actually be able to remain on the ground for long? :D


    That would be [ Temp. 2m ]


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    #49
    Harps
    Closed Accounts Posts: 3,548 ✭✭✭Harps


    Iso0Cz500/1000 is another useful one, it gives the height of the 0C isotherm in metres, if its within 500m or so above ground then you'd have a chance of snow surviving the fall. The colours are the thickness of the atmosphere between 1000 and 500hPa in decametres, 528dm (5280 metres) is usually seen as the maximum for snow to fall, the lower the better


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    #50
    hatrickpatrick
    Registered Users Posts: 17,797 ✭✭✭✭hatrickpatrick


    Right will add those two to my regular Meteociel browsing, thanks :D
    FI isn't looking nearly as sweet as it was, unsurprisingly... The further you go in terms of hours, the more the Atlantic seems to dominate :/
    So basically starting to resemble the charts from this time last year, iirc.


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