An intense line of thunderstorms moves into Chicago after 1 p.m. bringing a tornado risk, especially in the south and southwest suburbs.

The same storm bringing the risk of severe weather and even a couple of tornadoes to the vast Chicago metro area into Wednesday evening will rapidly push cold air into the region Wednesday night along with snow.

A powerful winter storm blasting portions of the Plains and Upper Midwest with blizzard conditions is also expected to produce severe weather on Wednesday, putting cities like Chicago and Indianapolis on alert for powerful thunderstorms.