* WHAT...Northwest winds 20 to 30 kt with gusts up to 45 kt and waves 7 to 10 ft expected.
* WHERE...Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore.
* WHEN...From 4 AM to 10 PM EST Sunday.
* IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.