Overnight Supercells Charge into Ohio-Indiana-Kentucky with Strong Tornado Risk — SevereWX

A potent midlevel storm system is pushing severe weather eastward into the Midwest tonight, setting the stage for supercells over southern Indiana, southwest and central Ohio, and northern Kentucky.

The Storm Prediction Center's Mesoscale Discussion 1173 highlights a robust setup: a strengthening low-level jet stream is delivering juicy low-level winds, creating ideal conditions for rotating storms. Wind profiles show massive clockwise-curved hodographs with 300 m²/s² of effective storm-relative helicity—prime for supercell development and tornadoes.

While instability is modest farther east, recovering warm air near the surface will fuel storms capable of EF2-EF3 tornadoes (120-145 mph), 1-1.75 inch hail, and 65-80 mph wind gusts. Convection should spread northeastward through the overnight hours, with an 80% chance of a tornado watch soon.

Populated spots from Louisville KY northward through Cincinnati OH and into Indianapolis IN suburbs could see the action. This continues the Midwest's active pattern but shifts focus downstream.

Stay weather-aware tonight—monitor local NWS updates, radar, and have your severe weather plan ready. Know your safe spot, charge devices, and heed any watches or warnings. Safety first as storms intensify.