Archive for 2018

UK/Ireland: Pattern changing Storm Deirdre brings flooding rain, freezing rain, snow and severe gales

Written by on December 15, 2018 in Rest of Europe, United Kingdom & Ireland with 0 Comments
UK/Ireland: Pattern changing Storm Deirdre brings flooding rain, freezing rain, snow and severe gales

The Atlantic is making it’s comeback after a near week dominated by cool, easterly winds. Storm Deirdre is making the change from cold continent back to milder, stormier Atlantic as the jet stream strengthens. The tight thermal gradient marked by the storm is helping it deepen on final approach to the UK and so the […]

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North American pattern looking likely to turn from mild to cold in time for Christmas…

Written by on December 14, 2018 in United States of America with 0 Comments
North American pattern looking likely to turn from mild to cold in time for Christmas…

It may be a mild pattern now across a large portion of the continent but the models are seeing the return to a colder, snowier pattern east of the Rockies as we approach Christmas. In fact much of the continent goes from red to blue within the next 2 weeks. Notice in the GFS ensemble […]

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Could Indian Ocean Thunderstorms Trigger a Late December Sudden Stratospheric Warming Event?

Written by on December 12, 2018 in Rest of Europe, United Kingdom & Ireland with 0 Comments
Could Indian Ocean Thunderstorms Trigger a Late December Sudden Stratospheric Warming Event?

I’ve held off for about a week or so on talking about the stratospheric polar vortex because we all know how modelling suggests one thing only to let us down with the opposite. We know the stratospheric polar vortex has been under a degree of stress and as a result it’s been stretching and flexing. […]

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WU: Damp and Cool November; Second-Wettest Autumn in U.S. History

Written by on December 10, 2018 in United States of America with 0 Comments
WU: Damp and Cool November; Second-Wettest Autumn in U.S. History

Bob Henson  ·  December 7, 2018, 3:47 PM EST Six eastern U.S. states joined Texas in slogging through their soggiest autumn in records going back to 1895, according to monthly and seasonal data released Friday by the NOAA National Centers for Environmental Information (NCEI). Every state from the Great Plains to the East Coast, except […]

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US Cold pattern gives way to mild at the expense of Record Texas snow, Carolinas up next?

Written by on December 8, 2018 in United States of America with 1 Comment
US Cold pattern gives way to mild at the expense of Record Texas snow, Carolinas up next?

A trough of cold, dense air covers a large swath of the US from Texas to Atlantic. A significant storm system is tracking east on the southern edge of this trough through the southern tier this weekend bringing a mix of heavy rain, sleet, snow and freezing rain. There are reports that Lubbock, TX has […]

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Many a cold winter including 2009-10 saw a VERY wet November into December like we’re seeing now!

Written by on December 7, 2018 in Rest of Europe, United Kingdom & Ireland with 0 Comments
Many a cold winter including 2009-10 saw a VERY wet November into December like we’re seeing now!

The wet pattern continues for much of the UK with the Atlantic still firmly in charge as forecasted. This soggy pattern looks likely to remain from now up until Christmas, what happens after that remains to be seen. As you’re probably aware by now, I have called for colder late December onwards and the models […]

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First -50F on it’s way to Alaska while Lower 48 warms?

Written by on December 6, 2018 in United States of America with 0 Comments
First -50F on it’s way to Alaska while Lower 48 warms?

As we head into mid December the pattern is shifting. After the weeks of warmth up in Alaska and cold across much of the Lower 48, we about to see a switch with +AO/NAO. The big flip comes this weekend into next week as heights crash over AK/N Pacific while Pacific winds begin to sweep […]

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-2C Aviemore, +14C in Somerset, Stormy weather returns Friday to Scotland

Written by on December 5, 2018 in Rest of Europe, United Kingdom & Ireland with 0 Comments
-2C Aviemore, +14C in Somerset, Stormy weather returns Friday to Scotland

The UK has been separated by two quite different air masses over the past 24 hours. Wednesday began with -7C in Aviemore but +13C in Cornwall, Devon, Dorset and really through the day it didn’t change much with the south peaking at around 13-14C whereas northern Scotland struggled to get above freezing all day. In […]

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US Winter opens with damaging Illinois tornado, heavy snow from Nebraska to Wisconsin, Now Arctic air invades!

Written by on December 3, 2018 in United States of America with 0 Comments
US Winter opens with damaging Illinois tornado, heavy snow from Nebraska to Wisconsin, Now Arctic air invades!

The latest low crossed the central US over the weekend with a distinct warm and cold sector. Heavy snow fell in a swathe from Nebraska to Wisconsin while further south and east, warm, humid air fueled severe weather  as far north as Illinois. Don't know how I missed this while editing video. The Beardstown, IL […]

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Warming waters around Greenland… Could our chances of a mid/late winter cold pattern be increasing?

Written by on December 2, 2018 in Rest of Europe, United Kingdom & Ireland with 0 Comments
Warming waters around Greenland… Could our chances of a mid/late winter cold pattern be increasing?

A record strong and prolonged +NAO between May and August helped drive one of Europe’s hottest summer’s in the last 100 years while Greenland shivered it’s coldest since 1997. The cooling of the North Atlantic has almost certainly helped cool Greenland’s summers down and helped enhance this past summer’s deep Greenland trough and Europe ridge. […]

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