Grand Rapids, Mich. – Thunderstorms capable of producing damaging winds, large hail, and isolated tornadoes are expected to intensify across northern Michigan Friday evening, with the highest risk between 6 p.m. and 2 a.m. Saturday.
According to the National Weather Service in Grand Rapids, the morning storms will linger mainly north of I-96 before moving out by afternoon. A second, more severe round of storms is likely to redevelop tonight, particularly in areas under an enhanced or slight risk zone. These include portions of Montcalm, Newaygo, Mecosta, and Isabella counties.
The main hazards include wind gusts exceeding 60 mph and hail over 1 inch in diameter. The tornado probability is highest in central lower Michigan, where conditions will be more favorable for rotation later tonight. Although morning storms are expected to stay below severe thresholds, evening storms could prompt warnings.
Residents are urged to avoid unnecessary travel during storm hours and to secure loose outdoor items. Charge devices and have multiple ways to receive alerts, especially in areas north of I-96 where the threat is greatest.
Storm watches remain in effect through early Saturday morning, and additional warnings may be issued as the system develops.