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NWS Grand Rapids MIMA.W 0067September 2, 2026

Special Marine Warning: Pentwater to Manistee MI and Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid Lake

The National Weather Service office in Grand Rapids issued a special marine warning for Pentwater to Manistee MI and Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid Lake, which was in force until 8:30 a.m. local time on September 2. It was the 67th special marine warning the NWS office in Grand Rapids issued in 2026.

ExpiredWarning

Issued6:55 a.m. EDT, September 2, 2026
In force6:55 a.m. EDT, September 2, 2026
Expired8:30 a.m. EDT, September 2, 2026

In force for 1.6 hours; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Grand Rapids MI
Area
Pentwater to Manistee MI and Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid Lake
Level
Warning
Issued
6:55 a.m. EDT, September 2, 2026
Expires
8:30 a.m. EDT, September 2, 2026
CAP severity, certainty, urgency
Severe, Likely, Immediate
VTEC event
KGRR MA.W 0067
Official source
National Weather Service: the notice at its source

NWS notices, September 2026The latest from the National Weather Service

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

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.

What the agency told people to do

Move to safe harbor until hazardous weather passes.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.

The record around this notice