NWS Storm Prediction Center Norman OK
0248 PM CDT Thu Mar 26 2026
AREAS AFFECTED...Portions of Illinois...northern Indiana...into
southern lower Michigan and northwest Ohio
CONCERNING...Severe potential...Watch likely
VALID 261948Z - 262145Z
PROBABILITY OF WATCH ISSUANCE...80 percent
SUMMARY...Thunderstorm development appears likely over the next
couple of hours along a surface cold front and various lake breeze
boundaries. Ample buoyancy and vertical shear for supercells and
line segments will support an increasing severe risk for all
hazards. A WW is likely.
DISCUSSION...As of 1945 UTC, visible imagery showed a deepening
cumulus ....... more