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Special Marine Warning for Munising to Grand Marais MI; Grand Marais to Whitefish Point MI; 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 +1 more

This alert has ended.Kept for recent context. Do not use it as a current warning.

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What you need to know

Effective
Ended
Official severity
Severe
Official urgency
Immediate
Official certainty
Likely

What is happening

SMWMQT The National Weather Service in Marquette has issued a * Special Marine Warning for... Grand Marais to Whitefish Point MI... 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... Lake Superior from Grand...

What the bulletin says to do

Move to safe harbor immediately as gusty winds and high waves are expected.

Read official NWS bulletin

Full official description

Bulletin details

SMWMQT The National Weather Service in Marquette has issued a * Special Marine Warning for... Grand Marais to Whitefish Point MI... 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... Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border... Munising to Grand Marais MI... * Until 230 PM EDT. * At 136 PM EDT, a wake low was moving over eastern Lake Superior. HAZARD...Wind gusts to 40 knots. SOURCE...Buoy. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Grand Sable Dunes, Muskallonge State Park, and Pictured Rocks National Lakeshore.

Lifecycle record

Official revisions

1 captured
  1. Alert

    Special Marine Warning issued July 20 at 1:37PM EDT until July 20 at 2:30PM EDT by NWS Marquette MI

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Marquette MI. This page reorganizes official fields and does not add a forecast or expand the affected area.

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Actual
Message type
Alert
Last collected
Methodology and corrections