Northern Michigan Supercells Gear Up for Large Hail, Damaging Winds as Severe Watch Looms — SevereWX

Storms are poised to intensify across eastern Upper Peninsula and northern Lower Michigan this evening, bringing risks of large hail up to 1.75 inches and damaging wind gusts to 70 mph.

The Storm Prediction Center highlights increasing severe potential as an upper-level jet streak drives ascent over the region. A strengthening southwesterly low-level jet will pump in moist, unstable air from the west, fueling ongoing storms—including supercells—southeastward across Lake Michigan into northern Lower Michigan.

Forecasts show storms may ride slightly elevated atop a shallow near-surface inversion, curbing the tornado risk despite solid low-level shear. However, seasonably strong deep-layer shear will sustain organized modes like supercells and bowing segments. Primary threats remain hail 1-1.75 inches and winds 55-70 mph, with low-end tornadoes (85-110 mph) possible but less likely.

A severe thunderstorm watch is likely before 1 AM EDT (80% probability), valid through early Tuesday.

This setup mirrors recent action further west but targets Michigan's north country, including areas near Traverse City and the eastern U.P.

Stay prepared: Review your severe weather plan, ensure mobile alerts are enabled, secure outdoor items, and seek shelter in interior rooms away from windows if warnings issue. Monitor radar via local NWS offices (APX, GRR, MQT) and apps for real-time updates.