SMWGRR
The National Weather Service in Grand Rapids has issued a
* Special Marine Warning for... Nearshore and Open Waters from Pentwater to Manistee MI...
* Until 830 AM EDT.
* At 655 AM EDT, strong thunderstorms were located along a line extending from 20 nm west of Point Betsie to 13 nm south of Rawley Point Light, moving east at 60 knots.
HAZARD...Wind gusts to 40 knots and small hail.
SOURCE...Radar.
IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves.
* Strong thunderstorms will remain over mainly open waters.