NWS Marquette MIMA.W 0019June 30, 2026
Special Marine Warning: 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
The National Weather Service office in Marquette 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, which was in force until 12:15 p.m. local time on June 30. It was the 19th special marine warning the NWS office in Marquette issued in 2026.
ExpiredWarning
In force for 45 minutes; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Marquette MI
- Area
- 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
- 11:30 a.m. EDT, June 30, 2026
- Expires
- 12:15 p.m. EDT, June 30, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KMQT MA.W 0019
- 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... * Until 1215 PM EDT. * At 1130 AM EDT, a severe thunderstorm was located 17 nm south of The Eastern Lake Superior Buoy, moving northeast at 50 knots. HAZARD...Wind gusts to 40 knots 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. * The severe thunderstorm will remain over mainly open waters.
What the agency told people to do
Boaters should seek safe harbor immediately until this storm passes. Wind gusts to 40 knots, large hail, high waves, dangerous lightning, and heavy rain are possible with this storm.
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.