Sail Michigan | Lake Superior Weather



What is a Special Marine Warning?

A Special Marine Warning is issued by the
National Weather Service when observed 
or forecast winds of 34 knots or more
associated with a squall or thunderstorm
are expected to last for 2 hours or less.


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Lake Superior Weather


National Weather Service Forecasts


Windfinder Forecasts




Windfinder Historical Data



Annual wind direction distribution Grand Marais/Superior

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