There are multiple tornado warnings and severe thunderstorm warnings in the Chicago area as a line of severe weather sweeps in.

The Northeast is facing a flash flood threat this week from an unusually strong storm that could drop up to a month’s worth of rain in just a few days in parts of the region.

More than 20,000 customers are without power in Outagamie County, where Appleton is primarily located, as well as more than 12,000 customers in neighboring Winnebago County, according to PowerOutage.u...