Several rounds of dangerous thunderstorms will erupt from the Plains, Midwest and Great Lakes to parts of the Northeast on Tuesday, threatening flooding, large hail and damaging wind gusts.
Chicago, Detroit and Pittsburgh are among the cities that lie in the heart of the flooding and severe storm risk.
Severe storms have been producing hail up to the size of golf balls across portions of Kansas and Nebraska on Tuesday morning.
Chicago will not catch a break from the bitter cold anytime soon, as more cold air heads to the city this week.
It has rained every day so far this month, except Dec. 1 around Atlanta. That trend will continue through Tuesday.
More waves of Arctic air are in the offing for Detroit this week.
After ending the weekend on a slick note, more cold air will dominate weather headlines this week.
Philadelphia International Airport received more snow (8.6 inches) from a single storm this past Sunday than it did all of last winter, when 8.3 inches fell.
After a day of heavy snow across the mid-Atlantic, ice and rain are adding to power outages, flight delays and hazardous road conditions.
Mill city, OR (1987)
Three people were killed and two injured when a moving vehicle was smashed by a falling tree during high winds and heavy rain.
Sheridan, NY (1908)
Temperature dropped to -41 degrees F., all time low.
Second great snow in 5 days: Morristown 21"; New Haven 17"; "four feet on level" in eastern Mass. - another high tide.