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Gale Watch
ActiveManitou Island to Point Isabelle MI; Point Isabelle to Lower Entrance of Portage Canal MI; Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore; 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
Starts
Ends
Issued
Severity
Moderate
Urgency
Future
Certainty
Possible
Details
* WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to less than one nautical mile. For the Gale Watch, north winds 20 to 30 kt with gusts up to 45 kt and waves 7 to 12 ft possible.
* WHERE...Manitou Island to Point Isabelle MI, Point Isabelle to Lower Entrance of Portage Canal MI, Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore 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.
* WHEN...For the Dense Fog Advisory, until 10 AM EST Wednesday. For the Gale Watch, from Thursday morning through late Thursday night.
* IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. Low visibility will make navigation difficult.
Instructions
Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves.
If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.
Data from the National Weather Service
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