There is no disputing the amount of warmth there is throughout the Lower 48. It has been just incredible how warm those readings have been with 70s in Chicago, DC while 60s have flooded the map.
Despite all this warmth, there is plenty of cold air north of the border and boy, is it not cold… Fairbanks this morning fell to 40 below zero for the first time while Tok hit 55 below zero.
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The US snowcover is of course very paltry these days with really only the high elevations out West covered but changes are afoot next week as the first lobe of ‘arctic’ air appears to come down mid next week. A storm forms and rides up the eastern side of the trough and cold air and should produce a sizeable snowstorm to the Dakotas and Minnesota. By the system heads up into Canada, it’s expected to deepen to sub-985 mb and so an all out blizzard may occur for the Prairies.
Here is the expected temps at 12Z next Wednesday.
Courtesy/Owned by Weatherbell Models
and the expected snow depth chart for 186 hrs.
Courtesy/Owned by Weatherbell Models
I guess you could say it doesn’t look like a big deal on the GFS but plenty can change.
The trouble is that with the PNA slow to turn positive and thus the lack of west coast ridging, the really cold stuff will remain bottled up over Canada but believe me, I think it’s only a matter of time before all this does start to come south.
BTW, with regard to next week, with the PNA holding in negative territory, and the storm on the table mid next week, one needs to watch for potential Southeastern severe weather with ridging and warm air ahead of the cold front that will be sliding east.
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