Very cold weather will dominate central Pennsylvania through Friday.
Temperatures are projected to average 15 to 30 degrees below the normal high of 40 F for late February.
The region and much of the Northeast are forecast to be in for wintry precipitation beginning this weekend.
The heaviest snow, ice and rain is likely later Sunday into Monday. Another push of cold air will follow.
The details on the storm, timing and which forms of precipitation are likely to dominate will follow in the days ahead.
Until then, episodes of snow will generally be light and more of a nuisance.
Tune in to AccuWeather Live Midday every weekday at noon EST. We will be talking about the return of cold air in the Midwest and East, as well as more storms and the potential for rain in California.
Damaging thunderstorms will threaten North Carolina to the southeast Pennsylvania on Wednesday.
Temperatures will plummet by as much as 40 degrees Fahrenheit in less than 24 hours along the I-95 corridor from New York City and Philadelphia to Washington, D.C.
A major winter storm will lash Illinois to Maine. It will unfold into a blizzard across portions of New England, unleashing more than a foot of snow.
With winter coming to a close, numerous cars are off the roadways and in body shops, as vehicles take a hit from the season's potholes and salt corrosion.
A storm system will move east through the Rockies and spread snow into the Plains during the day on Tuesday.
Rain is in the forecast leading up to the start of the Formula 1 Season in Melbourne this weekend.
Paris, TN (1986)
Early in the morning, several planes broke away from the Downs Airport as the wind jumped from calm to 65 knots in just one second!
Chicago, IL (1923)
Record low pressure of 28.70" occurred during a late winter storm; heavy snow, thick glaze gales, much rain; $800,000 damage.
The Blizzard of '88. (See also March 11th). 2-4 feet of snow; drifts to second story windows. Some Snowfall Amounts: Location: Inches: New Haven, CT 28.0 (total 44.7" 11th-14th) Albany, NY 46.7 Philadelphia, PA 10.5 Union, NJ 25.0 Newark, NJ 19.0 Saratoga, NY 58.0 New York City 20.9 Boston, MA 10.0 Trenton, NJ 2.22" of rain March 11, then 21" snow March 12