The Storm Prediction Center has painted OHIO in a Moderate Risk for Severe Storms SUNDAY. To give you an historical reference point to what this means, OHIO usually goes under a MODERATE RISK only a few times a year. Bottom line, don't take this threat lightly.
Remember, a SEVERE THUNDERSTORM is a storm with 58 mph winds AND/OR 1" hail or a tornado. When any one of these criteria are met, a SEVERE THUNDERSTORM WARNING is issued.
Super strong jet stream...left front exit region over Lake Erie
Upper level diverging air at 500mB (18,000 feet) which translates into rising air at the surface.