A round of fast-moving severe thunderstorms plowed through the Chicago area Sunday afternoon, producing hurricane-force winds and prompting tornado warnings in parts of Northwest Indiana. A tornado watch was issued throughout most the Chicago area and Northwest Indiana for much of the afternoon.

The Tornado Watch is in effect until 9 p.m. for dozens of Illinois counties such as Grundy, Kendall, Kankakee, La Salle and Will. Indiana counties that are under the watch include Newton, Benton, Warren and Tippecanoe, among others.

The tornado watch is in effect till 7 p.m. for Chicago, the surrounding south and west suburbs and northwest Indiana. The National Weather Service warns of tornadoes, hail the size of ping-pong balls and 70 mph winds.