![]() | MESOSCALE DISCUSSION 1154 NWS Storm Prediction Center Norman OK 1222 PM CDT Tue Jun 16 2026 AREAS AFFECTED...eastern Illinois...northern Indiana...lower Michigan CONCERNING...Severe potential...Watch likely VALID 161722Z - 161915Z PROBABILITY OF WATCH ISSUANCE...80 percent SUMMARY...Thunderstorm activity to increase through the afternoon with potential for DAMAGING WINDS, large hail, and a couple of TORNADOES. DISCUSSION...Thunderstorm activity is increasing across portions of lower Michigan ahead of a surface low/cold front located across Wisconsin. This activity will pose some risk for marginally severe hail in the near term. Additional development is ....... more |