This news announcement is from AEP-Ohio.

A major severe weather outbreak - including a squall line tonight - is expected for AEP's East Utilities. The threat area has been expanded to include all of AEP's East Utilities.  Several disturbances traversing the top of a hot upper-level ridge will trigger the severe
weather.

The first disturbance will cross northern I&M Power early this afternoon with showers...then probably intensify triggering strong to severe thunderstorms as it reaches northern and central Ohio late this afternoon and evening. These storms may produce wind gusts of 50-60 mph, hail and even a few tornadoes.

A second, stronger disturbance will arrive tonight - likely triggering a squall line to take shape in Illinois. This squall line is expected to track  through Indiana, Ohio, northern KY and into West Virginia overnight.

While it is not possible to forecast the precise track, timing and intensity of the squall line - it is likely  to produce widespread wind damage and be a high-impact event for the utilities.
Thursday....severe storms are likely over APCo' eastern service territory and
the entire mid-Atlantic region.