Alaska CAN be a pretty good predictor of colder temperatures. Generally, if you see temperatures in the -10 to the -40-degree range(in Alaska) you better buy that parka. These temperatures will be moderated by terrain features.
But source regions from Canada and the North Pole assure frigid temperatures across the country. As a kid, we lived in Fairbanks, AK. When my sister was born temperatures were -63 and I can guarantee that air, some of it will life miserable.
The Gulf of Mexico and Atlantic usher in the warm moist air on the Eastern Seaboard. Because the Southeast USA has to struggle with too much of that warm air, mixed precipitation and ICE, ice baby occurs.
As this moisture advances northward, naturally thickness values fall and ice and snow begin to come into the picture. The Cape Hatteras Low given the right circumstances can dump a foot or more of snow adjacent to the coast. Coming from the West, the moisture kind of tapers off with flurries or less. From the East, that is a different matter. Enough moisture and the Piedmont and Wake Forest can see heavy snow.
We are talking North Carolina, Outer Banks, the Piedmont. Just saying!
BTW, I was born on Feb 2. (Ground Hog's Day)
Meteorologist Larry Olson
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World Racing Group
Chief Meteorologist
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