Monday's heavy snow could knock down trees and power lines.
"If you must venture out at all ... use extreme caution," the weather service warned.
Let it snow, let it snow, let it snow!
Ski areas, including West Virginia's Snowshoe Mountain Resort, 200 miles south of Pittsburgh, are hoping people venture out, and promising the "best March ski conditions in recent memory."
"Last year, we had to close by now," Snowshoe spokesman David Dekema said Monday. "By this time, we were shut down. It was warm and raining."
But this year, he said, "it's looking like winter for the foreseeable future."
Snowshoe had planned to close this Sunday, the last day of March, but the prediction of snow through Thursday is forcing a reassessment.
"We're getting a lot of feedback and questions from our guests who don't want to let winter run out here, and we're having internal discussions about what's feasible," Dekema said. "With our best final weekend snow conditions and so much terrain open, some people want to keep it going and maybe make it into April."
Deep South cold
A deep-plunging Arctic cold front is fueling the storm system, and while the Southern states didn't get much snow, they were feeling winter's bite in unseasonably low temperatures, blustery wind and overwhelming rain.
Large sections of Texas, Oklahoma, Arkansas and Louisiana shivered under freeze warnings, while temperatures in the 40s could be found in the Florida Panhandle.
Winds strong enough to prompt advisories whipped Georgia, Alabama, the Carolinas, Tennessee and Arkansas, making the unseasonably cold weather feel even worse.
And on top of that, rain deluged a wide swath of the South, with cities as far apart as Columbus, Mississippi; Birmingham, Alabama; and Charleston, South Carolina, all receiving more than 3 inches of rain -- and Valdosta, Georgia, accumulating nearly 5 inches.