The National Weather Service Storm Prediction Center issued severe thunderstorm watch number 356 at 4:15 p.m. EDT. In addition to a large part of northeastern Illinois and parts of southern Wisconsin and Lake Michigan, the watch includes five Indiana counties in the northwestern corner of the state: Benton, Jasper, Lake, Newton and Porter. The watch is in effect until 11 p.m. EDT (10 p.m. CDT).
Primary threats include
- Numerous damaging wind gusts with a few gusts to 80 mph possible.
- Large hail of up to two inches in diameter.
- The possibility of a few tornadoes.