* WHAT...West winds 20 to 25 kt with gusts up to 40 kt and waves 6 to 11 ft occurring.
* WHERE...Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border.
* WHEN...Until 2 AM EDT Thursday.
* IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.