Arctic air to late week changes

Good Tuesday, everyone. It’s another arctic cold weather day across the Commonwealth and this looks to hold on for a few more days before changes sweep in. Those changes mean a lot of wind, milder temps and some weekend thunderstorms.

Let’s begin with the frigid numbers out there today. Highs are back in the 20s, but wind chills are only in the teens. A northwest wind will bring a weak disturbance in here, possibly bringing a few flakes along for the ride.

The best chance is across the north and east:

Another system works in here Thursday and Friday, bringing the potential for a swath of light snow on the front end and some rain on the back end. The NAM only goes through 7am on Friday, but gives us a good look at the swath of accumulating snow:

The Canadian has a similar look:

Milder air surges in here behind that low, with rising numbers ahead of a more potent storm system taking shape for the weekend. That sets the stage for a big time storm system to develop in the plains. That has the chance to produce some big thunderstorms from the plains into the Appalachian Mountains…

GFS

Canadian

High winds may also be a player with this storm system.

A similar storm will follow that up early next week.

Have a terrific Tuesday and take care.

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