The National Weather Service out of Paducah has posted a Hazardous Weather Outlook for portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri.
Scattered strong to severe thunderstorms are expected Wednesday and Wednesday night.
Large hail and damaging winds are the primary hazards, but a few tornadoes may be possible in the vicinity of frontal boundaries.
Locally, heavy rain and frequent lightning will also occur with these thunderstorms and may cause localized flooding.
The potential for clusters of thunderstorms with damaging wind gusts may increase during the afternoon and early evening hours.

The Storm Prediction Center in Normal, Okla. has placed most of southeast Missouri and southern Illinois in an enhanced risk of severe thunderstorms today and tonight.
A marginal to slight risk of severe thunderstorms covers west Kentucky and part of the Missouri bootheel, while all of southwest Indiana is a slight risk of severe thunderstorms.
Scattered strong thunderstorms may be possible through midday on Thursday over the Pennyrile region of west Kentucky and southwest Indiana with damaging wind gusts being the primary hazard.