Arctic air continues to blast south this evening and it sure has grabbed the attention of millions of shivering Eastern and Southerners. As the front has steamed through, we’ve seen rain change quickly to snow, gusts past 40 mph, thunder and lightning and temperature drops of 10+ degrees within just 1 hour. 24 hour drops have been in the order of 25 to 35 and in some causes 40 degrees.
We also saw record snowfall, albeit a trace in many areas stretching from Maine down to North Carolina.
This evening there are countless snow images being uploaded to twitter from North Carolina as the front crosses the mountains and pushes ever closer to the coast.
Here’s the current radar over North Carolina and you can clearly see the front with rain on it’s leading edge with backside snows. Note the moisture is limited but that’s an impressive front. According to TWC, Charlotte was up to 65 degrees earlier and is now down to 35 and will drop into the 20s tonight beneath clear skies.
Here was the lows from this morning.
Check out the 24 hour temperature change.
Coldest night across the greatest area tonight with 20s possible all the way to Florida! That’s more like a January night over the Southeast.
TWC forecasted lows
GFS forecasted lows
Check out just how below normal these lows are!
As you can see from the above chart, there is strong warming taking place on the northern periphery of the arctic high, here’s the current surface chart off the GFS which shows where the high is positioned.
Another Major Shot Of Arctic Air Next Week!
The high eventually pushes out into the Atlantic by the weekend with warmth BRIEFLY returning to the East. I say brief because models show another arctic blast coming down early and mid next week and yes there is a storm on the chart too.
Check this out by Monday.
Here’s the ECMWF which pretty much shows the same thing as the GFS.
The models are all in agreement that blocking will develop next week the ridging over Alaska and Greenland linking up.
Check out the CFSv2 500mb height anomalies and you can see this week’s lack of blocking compared to next week. What a difference between week 1 and 2
week 3 and 4 continues to show blocking.
Sure enough the temperatures are colder over the Lower 48.
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