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Winter 2009 / 2010 in Western Europe?

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Author Topic: Winter 2009 / 2010 in Western Europe?  (Read 27846 times)
martinastro
Martin Mc Kenna
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« Reply #90 on: December 22, 2009, 06:42:34 pm »

For those in N. Ireland be very careful on the roads Tues/Wed. Wet sleet/snow is falling followed by overnight temps between -4 and -6 deg C, this will cause wide spread ice so untreated roads will be like glass - deadly stuff!.
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markt
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« Reply #91 on: December 23, 2009, 11:02:55 am »

It's like that round here aswell Martin.  Joe Bastardi has an interesting blog update where he links particulate matter in the polar atmosphere from the recent northern hemisphere volcanic eruptions causing warming high in the atmosphere in the arctic.  Thermodynamics kicks in and there's a consequent cooling in these regions at lower levels in the atmosphere, hence all this cold air spilling down this winter. 

http://www.accuweather.com/ukie/bastardi-europe-blog.asp?partner=accuweather

He reckons in western europe we're in for a spell of milder weather, but there will be more cold excursions like this again in mid and late winter.
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JohnC
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« Reply #92 on: December 24, 2009, 12:53:36 pm »

A large bus went off the road in Cornwall and the police vehicle attending also hit the same patch of black ice and slid down the embankment and hit the bus already on its side at the bottom.Two dead, 47 injured.

http://www.nowpublic.com/world/cornwall-coach-crash-black-ice-2-women-killed-47-injured
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martinastro
Martin Mc Kenna
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« Reply #93 on: December 24, 2009, 01:33:54 pm »

That's terrible John!

It's a beautiful scene here today with clear blue skies, bright sun, ice and snow with freezing fog below slieve gallion and a nice sundog above - a festive white winter wonderland  Smiley

Temps will dip to -8 tonight
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martinastro
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« Reply #94 on: December 24, 2009, 04:23:11 pm »

Great circumzenithal arc visible over Maghera before sunset this afternoon - a rare sight this year.
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martinastro
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« Reply #95 on: December 24, 2009, 08:38:10 pm »

12Z Update Christmas Eve

North Atlantic Pressure upper level flow remains essentially dominated by a very low latitude Jet and high pressure over Polar Regions.  Whilst the airmass has become less cold over the last 24hrs, its expected to remain cold enough inland for snow across the north through the Christmas weekend.  Into next week strong warm advection in the western Atlantic and strong cold advection over the NE Atlantic forcing a trough extension and a renewed spell of cold weather across the UK.

Right now the legacy a last nights trough is causing snow over SE Scotland and the persistent line of showers which has generated over 25mm in parts of Central Southern England remains slow moving.  A new frontal low is moving into Western France with the Jersey Radar now confirming echoes over N France.  These are set to just clip the SE of England and bring Snow to NE France, Belgium and the Neterlands tonight.

Showers over SE Scotland are falling as snow inland and have given several new cms of snow this morning.  The cold over the Snowcovered Highlands and the glens remains firmly locked in place with the airmass substantially warmer aloft than at the surface over these parts (-11 to -15C still this morning the result of a sharp nr surface inversion)

It keeps raining across CS England, this line running from Lyme Bay to West London and only moving only slowly East through the rest of today.   There has been a trend to run the frontal low coming into NE France further NW and this is reflected in the Precip Probs from the Ensemble which indicate a better than 50% chance of some precip in the SE later this for a time.  Snow likely in the heavier precipitation over Belgium and the Netherlands

Christmas Day is largely dry over most parts with a ridge of High PRessure in charge albeit a weak one. A few showers continuing over the Grampians and then focus turns to N Ireland and SW Scotland, with the low currently to the west of IReland moving east. Rain coming into Ireland later tomorrow and turning to snow over the mountains of N Ireland and perhaps more generally at lower levels in any heavier precip.  Of greater concern is the spread of the precip into SW Scotland tomorrow evening and night.  The precip occuring as night falls and cold air largely in place expected to see more widespread snow.  NAE has 6cm of snow over the Forth/Clyde Valley during tomorrow evening.  This needs watching as could see heavier falls than presently indicated. Over the weekend we see colder air remain in place in the North and east but less cold in the South and West.

Into next week and a large trough extension over the NE Atlantic is the major problem with rain turning to snow as increasingly cold air undercuts.  The 00Z UKMO GM and 00Z GFS at odds with their ensembles in taking the frontal precip too far north, prefer the 06Z GFS,  This situation needs watching very carefully.

More over the weekend

Paul Blight
UKww Manager - Education/Warnings
Associate Fellow Royal Meteorological Society
Southbourne, Dorset, 1M ASL.
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paulster78
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« Reply #96 on: December 24, 2009, 10:22:25 pm »

Absolutely beautiful weather! I really do love it, all the trees are white with frost. Its a lovely Christmas scene outside. We have freezing fog here again and my thermometer is currently saying -10! Brrrrrrr!!
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martinastro
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« Reply #97 on: December 25, 2009, 03:49:08 am »

It is fantastic isn't it - that's about 7 days now with snow and ice on the ground - freezing fog here and outside temps are the coldest I've felt this year and probably similar to what you're getting. Hopefully more snow soon - we have been very lucky with all this festive weather - bring it on  Smiley
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paulster78
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« Reply #98 on: December 25, 2009, 03:38:29 pm »

Its snowing again!  Smiley
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Tyler
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« Reply #99 on: December 25, 2009, 05:11:47 pm »

Got about 10" already though I haven't measured, it might be impossible with all the drifting. Seen a 7 ft drift in my neighbors backyard. 1/3 of all hwys in E Nebraska are closed. Reports of cars stranded on the interstate in town! Roads around here are impassible with 3 foot drifts common on the roads. Hopefully images soon
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« Reply #100 on: December 25, 2009, 08:05:18 pm »

Wow, that sounds a bit more than we have over here Tyler!

The 'warm air' is back over me here in the midlands, only a few patches of snow remaining.  Just about to get hit by rain so last remaining snow will be long gone by morning.  I look forward to the next cold snap that affects us!
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martinastro
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« Reply #101 on: December 26, 2009, 01:18:34 am »

Still a winter wonderland today and it snowed for a quite a while during the evening, didn't take any images this time though. There's another cold spell coming soon.

Tyler, seen the US storm on the news here, looks mental, some cool images from Mike as well. - Keep us informed on how things are developing, good luck.
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Roman White
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« Reply #102 on: December 26, 2009, 09:57:21 am »

Wet sleet/snow is falling followed by overnight temps between -4 and -6 deg C, this will cause wide spread ice so untreated roads will be like glass - deadly stuff!.
Here we had more than a week of such horrible road conditions...

AND NOW IT'S MELTING... The temperature was near +1...+2C in the recent days, today it is +5C. It is going to be a powerful thaw (no sufficient frosts are forecasted in next 2 weeks!).  Shocked The snow depth is already ~10cm, not 20cm as it was in a week ago, the roads have become a mix of water & melting ice, the sky is completely overcast, raining last night, humidity 90...100%, dense fog for 3 days in a row, with visibility sometimes as poor as 100...150m.
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markt
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« Reply #103 on: December 26, 2009, 10:48:10 am »

There's another cold spell coming soon.

Yeah, we (over here in UK & Ireland) have a mild spell for a week or so then it goes COLD again!  Check out Joe Bastardis blog >>> http://www.accuweather.com/ukie/bastardi-europe-blog.asp?partner=accuweather - I have to say I find him spot on in his forecasts - certainly (IMO) alot more accurate than the met office in their longer term predictions. 

I know it might not be to everyones tastes, but I quite like this 'proper' winter weather that we are getting! Smiley
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martinastro
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« Reply #104 on: December 26, 2009, 03:23:06 pm »

Complete white-out up the Glen shane Pass this afternoon with heavy snow falling, we had to pull over because the visbility was that bad!. It's snowing in Maghera now.
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