* WHAT...West winds 20 to 30 kt with gusts up to 45 kt and waves 6 to 9 ft expected.
* WHERE...Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM.
* WHEN...From 7 AM EDT /6 AM CDT/ to 4 PM EDT /3 PM CDT/ Tuesday.
* IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.