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Cold Spell Discussion (22/12/09) (Freeze continues across country)
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Sierra Oscar wrote: »Is that precip in Kerry at the moment falling as snow? Anyone down that way?
Am in North Kerry. Nothing falling at all, weird as the map is showing heavy rain/sleet/snow??
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I don't see it happening in the east/southeast, apart from high ground maybe.
I think the models are overplaying the precipitation tomorrow night/thursday morning, and are bringing it too far north. Apart from some limited low-level instability generating some flimsy showers along Irish Sea coasts south of Wicklow, there is no hint at any upper support for prolonged convective activity.
Isentropic lift is a possible precip maker, but GFS forecast soundings are giving thick surface layers of positive temperatures and dewpoints, too thick for snow methinks. We can get away with max a 600ft layer of above-zero air, but in some cases this is 1500ft. With wet bulb temperatures above zero too this screams to me of a non-event. Any precipitation generated aloft will melt before reaching the surface. Of course that's my opinion going on a quick scan of the situation - Evelyn & Co. obviously knows something I don't and I'm sure this time Thursday I'll be left with egg on my face! :P0 -
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Absolutely bizarre conditions in south Meath. I have never never seen a frost like there was at 20:30 this evening. Everything crystal white. Even the road was white, with recessed tyre tracks in it. It appeared to a covering of ice crystals that seemed to be accumulating to a perceptable depth, like a covering of snow. Like moisture in the air is freezing into crystals on contact with surface. No clouds, no fog, clear sky, not a flake has fallen in a few days, but it looked as amazing as a covering of snow. Car was only parked 3 hours, and it too was frozen solid.
Yeah, same thing all over Waterford the past few days. Footpaths (even some in the city centre) have half an inch thick of accumulated frost, and I saw a line of cars parked outside a dealership that had the same on them. I'm working up in Kilkenny, so I figured I might have been missing some snow showers, but more than one person told me that there has been absolutely no snow in the city since it turned cold - so what we're looking at is just accumulated frost.
Just like yourself, I've never seen anything like it!
It wasn't so blo0dy amazing though trying to drive back up the N3 through the road works after the first few oncoming trucks had deposits clouds of muck on the windscreen :mad: No way of clearing it off when its that cold, could see feck all.
Seriously, get yourself a bottle of low-temperature screenwash with ethanol and glycol in it, and mix it 1:1 with water. I made sure to do that after a mucky drive to KK on Monday. You should be able to wash your windscreen then.
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Am in North Kerry. Nothing falling at all, weird as the map is showing heavy rain/sleet/snow??
Falling as Heavy rain with some soft snow mixed in. Roads are now soaking and the rain is freezing on contact. Tomorow will be :eek:. Wish it was snow at low levels as I have have had no snow from this cold spell:( Mountains will look nice though lol0 -
Whether it snows or not, I have at last seen something out this cold spell that I would class as remarkable
what's also remarkable about this airmass is in a normal situation the sea temperatures in the atlantic would have modified the wintryness potentital of the airmass after a couple of days resulting in all the showers in the north and west turning to sleet and rain but not this time!0 -
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I don't see it happening in the east/southeast, apart from high ground maybe.
I think the models are overplaying the precipitation tomorrow night/thursday morning, and are bringing it too far north. Apart from some limited low-level instability generating some flimsy showers along Irish Sea coasts south of Wicklow, there is no hint at any upper support for prolonged convective activity.
Isentropic lift is a possible precip maker, but GFS forecast soundings are giving thick surface layers of positive temperatures and dewpoints, too thick for snow methinks. We can get away with max a 600ft layer of above-zero air, but in some cases this is 1500ft. With wet bulb temperatures above zero too this screams to me of a non-event. Any precipitation generated aloft will melt before reaching the surface. Of course that's my opinion going on a quick scan of the situation - Evelyn & Co. obviously knows something I don't and I'm sure this time Thursday I'll be left with egg on my face! :P
Great stuff! I don't know what Isentropic Lift is, but if I ever start up a band - that's what they'll be called. 0 -
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Absolutely bizarre conditions in south Meath. I have never never seen a frost like there was at 20:30 this evening. Everything crystal white. Even the road was white, with recessed tyre tracks in it. It appeared to a covering of ice crystals that seemed to be accumulating to a perceptable depth, like a covering of snow. Like moisture in the air is freezing into crystals on contact with surface. No clouds, no fog, clear sky, not a flake has fallen in a few days, but it looked as amazing as a covering of snow. Car was only parked 3 hours, and it too was frozen solid.
It wasn't so blo0dy amazing though trying to drive back up the N3 through the road works after the first few oncoming trucks had deposits clouds of muck on the windscreen :mad: No way of clearing it off when its that cold, could see feck all.
10 miles down the road towards Blanchardstown no sign of frost or ice
Surprised there seems to be no frost in north west Dublin, seemed like a fairly mild evening when I stopped to sort out the windscreen. Some frost on the southside though.
Guards seem to have run out of recovery vehicles. There was a rolled car abandoned in a lane of the N3 dual carraigeway just inbound of the M50 causing a traffic snarl up, usually the Guards recover them immediatley rather just leaving them there.
Thats what we have had since Sunday morning & its hasnt thawed. No snow but this everlasting whiteness... Its layers upon layers now - totally treacherous just outside the house - im sliding the car in & out the driveway... But its only outside mine & next door on the road - everyone else is normal - very weird0 -
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