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NWS Marquette MIMA.W 0023June 30, 2026

Special Marine Warning: Marquette to Munising MI, Munising to Grand Marais MI and Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Can

The National Weather Service office in Marquette issued a special marine warning for Marquette to Munising MI, Munising to Grand Marais MI and Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore, which was in force until 8:00 p.m. local time on June 30. It was the 23rd special marine warning the NWS office in Marquette issued in 2026.

ExpiredWarning

Issued7:07 p.m. EDT, June 30, 2026
In force7:07 p.m. EDT, June 30, 2026
Expired8:00 p.m. EDT, June 30, 2026

In force for 53 minutes; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Marquette MI
Area
Marquette to Munising MI, Munising to Grand Marais MI and Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore
Level
Warning
Issued
7:07 p.m. EDT, June 30, 2026
Expires
8:00 p.m. EDT, June 30, 2026
CAP severity, certainty, urgency
Severe, Likely, Immediate
VTEC event
KMQT MA.W 0023
Official source
National Weather Service: the notice at its source

NWS notices, June 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

SMWMQT The National Weather Service in Marquette has issued a * Special Marine Warning for... Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore... Marquette to Munising MI... Munising to Grand Marais MI... * Until 800 PM EDT. * At 707 PM EDT, a severe thunderstorm was located 8 nm south of Shelter Bay, moving northeast at 35 knots. HAZARD...Wind gusts 34 knots or greater and large hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. * Locations impacted include... Miners Castle, Laughing Whitefish Point, Pictured Rocks National Lakeshore, Shelter Bay, Grand Island, and Au Train Island.

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