Today's Tornado and Hail Threats

The brown area is where the significant threat of a tornado exists late today and tonight.

These are the probabilities of hail 1 inch or larger. Fifteen percent (yellow) is the significant threshold. Where the hatching is located is where hail two inches or larger is forecast.

There are now major delays at O'Hare, Midway, Detroit, and minor (but increasing) delays at Washington-Reagan.