* WHAT...North winds 20 to 30 kt with gusts up to 45 kt and waves 11 to 16 ft expected.
* WHERE...Marquette to Munising MI and Munising to Grand Marais MI.
* WHEN...From 10 AM Thursday to 1 AM EST Friday.
* IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.