Michigan Cold Front Storms Ramp Up for Hail, Supercell Risks — SevereWX

Michigan Cold Front Storms Ramp Up for Hail, Supercell Risks

Storms firing along a southeastward-moving cold front across southern Michigan are gaining strength this afternoon, eyeing a severe upgrade as they push into northeast Illinois, northern Indiana, and northwest Ohio.

SPC's Mesoscale Discussion 1647 highlights maturing convection with robust updrafts already showing in radar and satellite loops. Diurnal heating is eroding MLCIN in a moist air mass warming to the 80s, boosting MLCAPE to 2500-3000 J/kg. Mid-level winds of 35-40 knots over Michigan and Ohio support organized storm modes.

Expect more thunderstorm development through late afternoon. Initial supercells in Michigan could drop hail up to 1.25 inches, with damaging winds of 55-70 mph becoming dominant farther east as storms cluster along the front. A tornado up to 90 mph isn't ruled out early on.

Watch issuance odds sit at 60% within the hour if coverage and intensity keep climbing. This setup promises the most punch where shear meets rich instability near the front.

Peak Threats: 1.25" hail, 55-70 mph gusts, EF2 tornado potential.

Keep an eye on radar—stay weather-aware and have a severe weather action plan ready. Monitor local NWS updates and apps like SevereWX.net for real-time intel.