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29-12-2017, 09:18   #1
Kermit.de.frog
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Risk of snow tonight (29th/30th) - Ulster, Leinster, Connaught

Euro4





From the center of the country northward is at risk of some heavyish snowfall, mostly due to evaporative cooling, as heavy rain moves northeastward for a few hours tonight. The rain will turn to snow and could fall as snow throughout for many in the northern half of the country.

For a time eastern coastal counties have an on shore breeze so, likely, rain and sleet here.

2 - 4 cms, more locally.

Last edited by Kermit.de.frog; 29-12-2017 at 09:55.
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29-12-2017, 09:56   #2
Kermit.de.frog
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Upgraded title to yellow warning, 2 - 4 cms inland, more locally (counties north of a line Dublin - Galway). Elsewhere likely to be transient - rain, snow, rain. Munster, far South Leinster looks not effected.


Last edited by Kermit.de.frog; 29-12-2017 at 10:03.
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29-12-2017, 09:57   #3
Sleety_Rain
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Hirlam is going for it- that is a wedge of snow not to far north of the Estuary

Very much intensity dependent--- places like Monaghan could get slammed but should be a temporary affair with mild temperatures soon sweeping north by morning....




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29-12-2017, 09:59   #4
mattser
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I'm sure the residents of Erie, Pennsylvania would love this thread.
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29-12-2017, 10:02   #5
jamesbondings
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Off to Galway for a few days tomorrow morning. Remote location outside oran more. I can't read these charts. Should we expect snow bad road conditions? I would be tempted to leave today so we can prepare if so.
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29-12-2017, 10:24   #6
Kermit.de.frog
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Quote:
Originally Posted by Weathercheck View Post
Hirlam is going for it- that is a wedge of snow not to far north of the Estuary

Very much intensity dependent--- places like Monaghan could get slammed but should be a temporary affair with mild temperatures soon sweeping north by morning....




I'll eat my hat if anything remotely that intense actually occurs

Gone by morning though as you say.
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29-12-2017, 10:25   #7
Kermit.de.frog
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Originally Posted by jamesbondings View Post
Off to Galway for a few days tomorrow morning. Remote location outside oran more. I can't read these charts. Should we expect snow bad road conditions? I would be tempted to leave today so we can prepare if so.
It'll be fine.
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29-12-2017, 11:23   #8
To Alcohol
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Off to the Wolfe Tones gig in Citiwest tonight. Will I be snowed in?
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29-12-2017, 11:33   #9
Gonzo
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I reckon those charts are overcooking where it will snow. Like every event so far this winter I reckon within 30-40 miles of the Irish sea will be cold rain with maybe a hint of sleet. Higher ground of the midlands, Cavan and Monaghan most likely to see any snow and even then only temporary.
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29-12-2017, 11:48   #10
pad199207
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Originally Posted by Gonzo View Post
I reckon those charts are overcooking where it will snow. Like every event so far this winter I reckon within 30-40 miles of the Irish sea will be cold rain with maybe a hint of sleet. Higher ground of the midlands, Cavan and Monaghan most likely to see any snow and even then only temporary.
Yep same old same old
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29-12-2017, 11:58   #11
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Not getting excites by this at all.... Previous warnings all pointed towards snow here only to shift South. Until I see snow falling and sticking I is not interested
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29-12-2017, 11:58   #12
MJohnston
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My experience of the HIRLAM this winter suggests that it is too "optimistic" about the height of the rain/snow line and is far too bullish about snow coverage as a result. ARPEGE has been much more accurate for me:



Of course, if this is due to evaporative cooling, different models might perform better, given that I'm basing the performances on mostly frontal events.
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29-12-2017, 12:30   #13
JCX BXC
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ME Warning issued
Quote:
STATUS YELLOW

Snow-ice Warning for Connacht, Cavan, Monaghan, Donegal, Dublin, Kildare, Longford, Louth, Westmeath and Meath
A spell of sleet and snow expected for a time early tonight, turning to rain later.

Issued:Friday 29 December 2017 11:00
Valid:Friday 29 December 2017 22:00 to Saturday 30 December 2017 06:00
I'd like to point out what a yellow warning means. It means be aware, and is aimed at people who are particularly vulnerable to this weather type. It's not a "you will be snowed in" or a "everywhere will be affected" warning, it's simply something to be aware of while carrying out your everyday business. People have completely and utterly lost the run of themselves on platforms like facebook, a few rags have taken up the story and there's everything from people saying "MÉ ARE ALWAYS WRONG" and "WILL I NEED A MONTHS FOOD SUPPLY AND A GENERATOR?". 99% of the time this can be resolved by simply reading the forecast and paying attention to what it actually means.

Last edited by JCX BXC; 29-12-2017 at 12:34.
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29-12-2017, 12:48   #14
highdef
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Apart from the 9 counties of Ulster, I'm not foreseeing much, if any snow in other locations, unless on high ground.... Say above 150/200m or so. It's mild enough country wide right now. The approaching precipitation is coming off the Atlantic so I can't imagine it getting cold enough for snow in areas further south than the Ulster counties, with wet bulb temperatures not being very favourable. Some higher hills and mountains in North Leinster and the northern half of Connaught may get some transient snow though.

Oh, how I'd love to be proven wrong though.

Last edited by highdef; 29-12-2017 at 13:07. Reason: 9 counties in Ulster, not 9 countries!
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29-12-2017, 12:57   #15
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Can't remember the last time I saw some frontal snow,yet I always get my hopes up whenever there is a chance. Deep down I know as regards my location ,ashbourne, Meath it will as usual be rain. Same rubbish all the time. Not that any snow will hang around for long anyway, milder tomorrow.

Last edited by Billcarson; 29-12-2017 at 13:03.
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