CHICAGO, ILLINOIS — Tuesday June 16 is shaping up to be a day forecasters are watching closely for potential supercell thunderstorms across the lower Great Lakes, with a Marginal Risk covering Chicago, South Bend, Fort Wayne, and Indianapolis where severe hail, damaging winds, and an isolated tornado could be possible if supercell storms develop.
Marginal Risk Zone Covers Chicago Through Indianapolis Corridor
The Max Velocity categorical outlook updated June 14 at 2:32 AM ET valid Tuesday June 16 shows a Marginal Risk in dark green centered over a corridor stretching from Kenosha, Waukegan, and Chicago southward through Joliet, Bloomington, Champaign, Springfield Illinois, Lafayette, Indianapolis, and Terre Haute. The zone also extends eastward to cover South Bend, Fort Wayne, and Muncie.
A lighter green Thunderstorm category surrounds the Marginal core, extending coverage from La Crosse and Madison through Milwaukee, Grand Rapids, Lansing, Toledo, Columbus, Dayton, Cincinnati, and Louisville.
Supercell Storms Could Bring Severe Hail and Isolated Tornado
If supercell thunderstorms manage to develop across the lower Great Lakes Tuesday, severe hail, damaging winds, and an isolated tornado would all be possible hazards. The supercell storm mode tends to produce more efficient severe weather outcomes compared to multicellular convection, which is why forecasters are flagging this potential several days out.
The forecast remains an evolving one at this range, and changes to both the risk area and the specific hazards are likely as Tuesday approaches.
Residents Across Lower Great Lakes Should Monitor Updates
Communities across Chicago, South Bend, Fort Wayne, Indianapolis, and the broader corridor covered by Tuesday’s Marginal Risk should continue checking forecast updates through the coming days. Given the evolving nature of this outlook, the exact placement and intensity of any supercell activity could shift before Tuesday arrives.
Stay with GordonRamsayClub.com for the latest updates.
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