Strong tornadoes are possible near Chicago, while blizzard conditions have been blasting Nebraska and Kansas. Farther south, Oklahoma and Texas are facing critical wildfire danger.

Another storm system is affecting millions of people in the middle of the U.S., leaving parts of the Midwest and Great Plains under blizzard conditions and a broad swath of neighboring states at risk of high winds and wildfires.

Tens of millions of people living in the Midwest and central U.S. could be impacted by tornadoes on Wednesday while critical wildfire conditions continue to impact the Southwest, after recent wildfires and a tornado outbreak killed at least 42 people over the weekend.