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.

The dynamic storm from Friday through Sunday had earned an unusual “high risk” designation from weather forecasters.

A powerful storm system that tore across the United States in recent days is winding down Monday, but in its wake are devastated communities across states hit with violent tornadoes, wildfires and dust storms spun off by the massive system.