* WHAT...South becoming northwest winds 20 to 25 kt with gusts up to 35 kt and waves 6 to 9 ft.
* WHERE...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...From 2 AM to 11 PM EDT Sunday.
* IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.