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Increasingly cold this week - frost widespread, risk of snow

1356

Comments

  • #102
    Su Campu
    Closed Accounts Posts: 4,279 ✭✭✭Su Campu


    darkman2 wrote: »

    Depends on where you are in a situation where we have high pressure situated over or near the country. The very thing that will allow temperatures to drop is the clear skies and lack of wind. Your argument it won't be as cold depends on the orientation of the high pressure. If it is too far South then you would be right. However more likely it will be centred close to us so dilution of milder air is less likely and if it's positioned even slight to our North or East a continental influence may come into play. Either way it looks like winds will fall light and skies should be clear. That only means one thing this time of year. You could be right but I doubt it and I think we will see severe frost by the end of the week and temperatures will struggle particularly at night.

    I think the high will stay to our south, with lows passing to our north keeping the tight gradient sustained and hence the winds will remain just too much for widespread frost. It only looks like becoming centred over us on Friday, but by that stage we will be under increased high-level cloudiness.

    EDIT: Jean never mentioned the word frost in her Faming Forecast for the week, just saying very cold with wintry showers in places.


  • #103
    Jimlad
    Closed Accounts Posts: 28 ✭Jimlad


    High pressure to the south, how long you think it will last? when will the snow hit the south east :confused:.. ??


  • #104
    davidsr20
    Registered Users Posts: 769 ✭✭✭davidsr20


    Jimlad wrote: »
    High pressure to the south, how long you think it will last? when will the snow hit the south east :confused:.. ??

    It won't lol


  • #105
    Tom Cruises Left Nut
    Registered Users, Registered Users 2 Posts: 9,029 ✭✭✭Tom Cruises Left Nut


    DPs are starting to go south


  • #106
    Tcostelloe
    Closed Accounts Posts: 15 ✭Tcostelloe


    Is it promised heavy snow in Galway tomorrow or even during the week?


  • #107
    jo06555
    Registered Users Posts: 1,118 ✭✭✭jo06555


    davidsr20 wrote: »
    It won't lol

    ever :confused::)
    t|nt|n wrote: »
    DPs are starting to go south

    good or bad ?


  • #108
    thetonynator
    Closed Accounts Posts: 5,234 ✭✭✭thetonynator


    edit:wrong thread


  • #109
    irish1967
    Registered Users, Registered Users 2 Posts: 3,516 ✭✭✭irish1967


    Donegal 1800 1.1c / 0.8 dp. Slowly getting there but I'm a little to coastal I think.


  • #110
    Chucky Norris
    Registered Users Posts: 65 ✭✭Chucky Norris


    no chance of a bit of snow to come down to kilkenny is there :o:o:o


  • #111
    thetonynator
    Closed Accounts Posts: 5,234 ✭✭✭thetonynator


    Chucky Norris wrote: »
    no chance of a bit of snow to come down to kilkenny is there :o:o:o

    Temp is 2.5 and DP -0.3, so if we had precip there is a chance of wet snow (wouldn't stick) but getting a shower to come this far is the problem.


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  • #112
    Chucky Norris
    Registered Users Posts: 65 ✭✭Chucky Norris


    thetonynator wrote: »
    Temp is 2.5 and DP -0.3, so if we had precip there is a chance of wet snow (wouldn't stick) but getting a shower to come this far is the problem.
    thanks i live up in the hills so wont lose hope yet :rolleyes:


  • #113
    thetonynator
    Closed Accounts Posts: 5,234 ✭✭✭thetonynator


    Chucky Norris wrote: »
    thanks i live up in the hills so wont lose hope yet :rolleyes:

    Nearest station to you is North East Kilkenny Weather (I'm guessing you're in the north on the hills?!) run by one of the boards posters here, if you want to check temps and dewpoint.


  • #114
    eddiej
    Registered Users Posts: 235 ✭✭eddiej


    Hi all,

    Could someone explain the temp and dew points required for snow and what is dew point exactly. Also for the majority of the east of the country do we really need easterly winds to give significant snow fall. If we get rain from the west 9/10 the rainfall has burnt itself out by the time it gets to the East relative speaking I presume the same for snow or am I incorrect

    Cheers
    Eddie


  • #115
    rainyrun
    Registered Users, Registered Users 2 Posts: 179 ✭✭rainyrun


    eddiej wrote: »
    Hi all,

    Could someone explain the temp and dew points required for snow and what is dew point exactly. Also for the majority of the east of the country do we really need easterly winds to give significant snow fall. If we get rain from the west 9/10 the rainfall has burnt itself out by the time it gets to the East relative speaking I presume the same for snow or am I incorrect

    Cheers
    Eddie
    I was just asking the same question as I was reading the threads. Would really appreciate if someone could let us know. Apologies if it has been answered many times before !!


  • #116
    Su Campu
    Closed Accounts Posts: 4,279 ✭✭✭Su Campu


    rainyrun wrote: »
    I was just asking the same question as I was reading the threads. Would really appreciate if someone could let us know. Apologies if it has been answered many times before !!

    Dewpoint is the temperature at which condensation will form when the air is cooled. As a general rule, if dewpoints is less than zero then snow is generally common, though it's not that simple.

    Have a read of this.


  • #117
    WolfeIRE
    Closed Accounts Posts: 2,667 ✭✭✭WolfeIRE


    Can we close this thread as 1) we are now in that week 2) it will turn progressively milder this week and 3) people are posting in one of 2-3 threads on the same topic.

    Danke


  • #118
    Tom Cruises Left Nut
    Registered Users, Registered Users 2 Posts: 9,029 ✭✭✭Tom Cruises Left Nut


    THis please

    SnowBeech.jpg


  • #119
    WolfeIRE
    Closed Accounts Posts: 2,667 ✭✭✭WolfeIRE


    t|nt|n wrote: »
    THis please

    Like a piece of frozen broccoli in the freezer


  • #120
    Lucreto
    Registered Users Posts: 1,003 ✭✭✭Lucreto


    t|nt|n wrote: »
    THis please

    SnowBeech.jpg


    I remember that happening to trees around where I live but to a much lesser extent. I hope I see it again soon.


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  • #121
    darkman2
    Banned (with Prison Access) Posts: 8,632 ✭✭✭darkman2


    Thanks for reopening the thread.:)


    Thursday night, Friday and Saturday potentially the northern half of the country roughly from Wicklow across to Galway are at risk of heavy snow showers and accumulations of snow (and higher parts of the South on Thursday). The showers will be heavier and more frequent the further North you are. The South coast may escape but that is not certain yet. I will post charts later once the 12z runs are finished.


  • #122
    Rebelbrowser
    Registered Users Posts: 3,167 ✭✭✭Rebelbrowser


    darkman2 wrote: »
    Thanks for reopening the thread.:)


    Thursday night, Friday and Saturday potentially the northern half of the country roughly from Wicklow across to Galway are at risk of heavy snow showers and accumulations of snow (and higher parts of the South on Thursday). The showers will be heavier and more frequent the further North you are. The South coast may escape but that is not certain yet. I will post charts later once the 12z runs are finished.


    To my untrained eye the 12z GFS is looking very promising in the short and longer term (though not finished yet..)


    ......though now the run is over I think I'm very much wrong longer term.


  • #123
    darkman2
    Banned (with Prison Access) Posts: 8,632 ✭✭✭darkman2


    I promised to put up and explain the charts but as it happens I don't have the time.


    But very promising for Thursday night, Friday and potentially Saturday. Cracking ECM tonight for these days in terms of potential for snow, ice and some frost. ECM hinting at perhaps more prolonged and widespread snow on Saturday for a time. It also keeps us in a very cold grip for longer. UKMO not too bad either. Looking good for this period especially in the Northern half of the country.


    I'm outta here - back in a couple of days!:)


  • #124
    Harps
    Closed Accounts Posts: 3,548 ✭✭✭Harps


    Yeah the GFS has given up on the high after the weekend and is now more in line with the ECM, should be an interesting few days again from Thursday through Saturday with a very windy day Thursday followed by another brief blast of cold weather


  • #125
    Musicman2000
    Registered Users, Registered Users 2 Posts: 1,461 ✭✭✭Musicman2000


    Zonal and more zonal on the models its good for snow lovers in the north and west and on very high ground elsewhere, but those of us in the east are not going to see much at all. Fingers crossed the Polar vortex will break up in the new year and we can get some decent blocking.


  • #126
    pauldry
    Registered Users, Registered Users 2 Posts: 7,174 ✭✭✭pauldry


    I was thinking it looks cold for the end of the week and then someone said to close the thread.

    Also was thinking the worst of the snow had gone and got caught in a sleety blizzard driving home and nearly skidded into a ditch.

    Things are only going to get worse..or better if you love snow.

    The North will get most it but we deserve it coz we got all the cold and rain in Summer so I was thinking then if this pattern continues to the Winter we might just see some more snow.

    Mountains in sligo had snow on them today but below 100m asl not a lot at all


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  • #127
    Forum Monkey
    Closed Accounts Posts: 41 ✭Forum Monkey


    I heard the snow should be covering the country by Friday! Hopefully Meath will get covered before then!


  • #128
    Su Campu
    Closed Accounts Posts: 4,279 ✭✭✭Su Campu


    Forum Monkey wrote: »
    I heard the snow should be covering the country by Friday!


    Where did you hear this?


  • #129
    Mayo_Boy
    Registered Users Posts: 661 ✭✭✭Mayo_Boy


    Come on the weshhtt!


  • #130
    Forum Monkey
    Closed Accounts Posts: 41 ✭Forum Monkey


    Su Campu wrote: »
    Where did you hear this?

    Met Eireann said it a day or two ago. when do you think the country will get covered?


  • #131
    Su Campu
    Closed Accounts Posts: 4,279 ✭✭✭Su Campu


    Forum Monkey wrote: »
    Met Eireann said it a day or two ago. when do you think the country will get covered?

    Sure they did. ;)

    No signs of the country getting covered. Nobody - even darkman! :D - said it would!


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  • #132
    Iancar29
    Registered Users, Registered Users 2 Posts: 5,068 ✭✭✭Iancar29


    Jean just gave a statement for " increasingly wintry showers from ARTIC air THURSDAY onwards "

    Very shocked i was to hear such a statement , for BOTH reasons! ha


  • #133
    thetonynator
    Closed Accounts Posts: 5,234 ✭✭✭thetonynator


    I've noticed myself that met eireann have turned into a shower of rampers this week! It's great! Previously, the best we would have heard is ''wintry precipitation'' with ''hail and sleet on high ground'' instead of last nights ''widespread snow'' and todays ''artic air''.

    Long may it last!


  • #134
    StormGazer.11
    Registered Users Posts: 85 ✭✭StormGazer.11


    Ok Met Eireann tend to play on the safe side but are we really in store for anything interesting in the coming days outside of the North and NW because according to themselves it's going to be windy, possible clear sunny spells with some showers thrown in for good measures, temps ranging between 3 to 9-ish... All sounds pretty average to me!


  • #135
    Su Campu
    Closed Accounts Posts: 4,279 ✭✭✭Su Campu


    Iancar29 wrote: »
    Jean just gave a statement for " increasingly wintry showers from ARTIC air THURSDAY onwards "

    Very shocked i was to hear such a statement , for BOTH reasons! ha

    I'd say she said Arctic air as it will be more from a northerly direction.

    It looks like a glancing 18-hour blow of cold like the past 24 hours during Friday, with hail, sleet and snow showers making their way further south in the strong northerly. 850 temp may be a degree or so less than today, but thicknesses look around the same. Slightly lower theta-w and theta-e values will probably mean snowline around 50-100 m, but again, with the strong winds, we will see some brief flurries to lowest levels. But I would still not go for a sea-level snowline, meaning I think precipitation at sea-level will be mostly sleety, with as I said the odd brief snowy flurry.

    It looks shortlived, with warmer air moving into the west Friday evening and night, and with winds easing as pressure rises through the weekend, more modification will take place in the boundary layer, so showers along the Atlantic coasts will become lighter and increasingly rainy, with the snowline rising.


  • #136
    Musicman2000
    Registered Users, Registered Users 2 Posts: 1,461 ✭✭✭Musicman2000


    thetonynator wrote: »
    I've noticed myself that met eireann have turned into a shower of rampers this week! It's great! Previously, the best we would have heard is ''wintry precipitation'' with ''hail and sleet on high ground'' instead of last nights ''widespread snow'' and todays ''artic air''.

    Long may it last!

    If it dose happen it will be very short lived, The gfs 18z is not looking good at all


  • #137
    nacho libre
    Registered Users, Registered Users 2 Posts: 16,956 ✭✭✭✭nacho libre


    StormGazer.11 wrote: »
    Ok Met Eireann tend to play on the safe side but are we really in store for anything interesting in the coming days outside of the North and NW because according to themselves it's going to be windy, possible clear sunny spells with some showers thrown in for good measures, temps ranging between 3 to 9-ish... All sounds pretty average to me!

    yes. it looks like for the time being we'll alternate between brief cold snaps and somewhat milder spells. no sign of sustained cold, accompanied by powdery snow anytime soon.


  • #138
    irish1967
    Registered Users, Registered Users 2 Posts: 3,516 ✭✭✭irish1967


    Does anyone think ME may have reviewed and changed their forecast policy this winter ? Is better to be wrong about bad weather or to be caught out once in a while if they play down the possibility of bad weather.


  • #139
    thetonynator
    Closed Accounts Posts: 5,234 ✭✭✭thetonynator


    irish1967 wrote: »
    Does anyone think ME may have reviewed and changed their forecast policy this winter ? Is better to be wrong about bad weather or to be caught out once in a while if they play down the possibility of bad weather.

    Well they weren't wrong this time, so this method would therefore be better. In the past they have downplayed every wintry event, so maybe it's a good thing that they aren't being quite so conservative?!


  • #140
    nacho libre
    Registered Users, Registered Users 2 Posts: 16,956 ✭✭✭✭nacho libre


    irish1967 wrote: »
    Does anyone think ME may have reviewed and changed their forecast policy this winter ? Is better to be wrong about bad weather or to be caught out once in a while if they play down the possibility of bad weather.

    Always better to overplay it, even if that risks people being blase about forecasts; people tend to remember if an event is under played, but then if it turns out to be noteworthy such a mistake is not forgotten.

    The 1987 storm attests to that.


  • #141
    eskimocat
    Registered Users, Registered Users 2 Posts: 1,204 ✭✭✭eskimocat


    I reckon that since there is a nice wee stash of salt available, they can risk going for the juicer reports! less likely hood of panic... :D I, for one (lord knows maybe the only one) approve of a bit of a ramp being built every now and again... oh yes, this good girl has a bad side....

    I feel the need, the need for speed snow!!


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  • #142
    patneve2
    Closed Accounts Posts: 1,576 ✭✭✭patneve2


    One of the lessons that this "cold snap" has taught us is that a positive AO does not necessarily mean "no chance of cold weather"...it is simply an index among manyyy other indexes...


  • #143
    Oscar Bravo
    Registered Users, Registered Users 2 Posts: 10,207 ✭✭✭✭Oscar Bravo


    Even Gerry Murphy gave extra locations from the useual ones on the "Latest Reports" on the late night forecast including Sherkin Islands and Mace Head and he finished with Belmullet instead of Dublin Airport.Also mentioned the risk of Storm force Gusts later tomorrow in the North.


  • #144
    konman
    Registered Users Posts: 234 ✭✭konman


    Oscar Bravo wrote: »
    Even Gerry Murphy gave extra locations from the useual ones on the "Latest Reports" on the late night forecast including Sherkin Islands and Mace Head and he finished with Belmullet instead of Dublin Airport.Also mentioned the risk of Storm force Gusts later tomorrow in the North.



    Just after seeing that there on the models. Tuesday night into wednesday midday from what my untrained eyes are seeing.
    On 18z GFS run thursday looks worse for north-west. Isobars are a lot tighter. Sorry I know its off topic.


  • #145
    john t
    Closed Accounts Posts: 295 ✭✭john t


    baltic cold in swords dublin airport tonite.. no snow no ground frost at 12.30am, car windows ok... but it cold...


  • #146
    davidsr20
    Registered Users Posts: 769 ✭✭✭davidsr20


    Has it actually snowed anywhere today or tonight or is this dead at this stage?


  • #147
    mountainy man
    Registered Users, Registered Users 2 Posts: 985 ✭✭✭mountainy man


    davidsr20 wrote: »
    Has it actually snowed anywhere today or tonight or is this dead at this stage?

    last snow shower was at 16.30 nothing since but a bit of graupel.


  • #148
    Harps
    Closed Accounts Posts: 3,548 ✭✭✭Harps


    Some wet snow here all night but nothing worth keeping an eye on, melts as soon as it hits the ground. Windy and milder for the next few days then another colder spell on Thursday and Friday


  • #149
    hotwhiskey
    Closed Accounts Posts: 592 ✭✭✭hotwhiskey


    davidsr20 wrote: »
    Has it actually snowed anywhere today or tonight or is this dead at this stage?

    Driving this morning last snow shower at 5.45, back roads icy in places black ice a problem you hit a patch and your heart forgets to beat.

    I didn't get time to mention yesterday but with all the cutbacks and all beware of ice on Mondays because i know that Cavan County Council for one are not paying for overtime so roads will not be gritted the weekends.

    Last year we had no money to pay for the salt this year plenty of salt (So they say but i heard some inside information;)) and this year no money to pay the workers. Fantastic:confused:!!!


  • #150
    hawkwing
    Registered Users, Registered Users 2 Posts: 1,829 ✭✭✭hawkwing


    "There'll be a sharp frost on Friday night. Saturday will be cold and mostly dry. But rain will spread from the west on Saturday night with a high probability of snow overnight and some significant accumulations possible. Further wintry showers following on Sunday. " http://www.met.ie/forecasts/ Not too much detail as to where exactly yet and subject to change but interesting..


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  • #151
    popflop
    Registered Users Posts: 110 ✭✭popflop


    Very icy on the roads this morning. So icy that infact the translink buses have been canceled!

    hooray no college! :D


This discussion has been closed.
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