Expected precipitation totals through Friday. (Fox News)
Heavy rain and thunderstorms will pop up south of the front for the Southeast. Isolated flooding will also be possible, especially for the southern Appalachians.
Another round of rain and snow will move into the Northwest and the arctic air that has settled in over the Plains and Midwest will be on going with temperatures 20-40 degrees below average in some areas.
Current winter weather warnings and advisories in effect. (Fox News)
Meanwhile, extremely cold air is spreading over the Plains and Midwest with dangerous wind chills.
Wind chill advisories and wind chill warnings are in effect across the Northern Plains through the Upper Midwest with "real feel" temperatures as cold as minus 50 degrees below zero. Frost bite can happen very quickly with dangerous temperatures like these, so people are urged to stay inside and stay safe.