* WHAT...For the first Small Craft Advisory, southeast winds 20 to 30 kt with gusts up to 40 kt and seas 6 to 9 ft expected. For the Gale Warning, southeast winds 30 to 40 kt with gusts up to 55 kt and seas 12 to 17 ft expected. For the second Small Craft Advisory, seas 7 to 12 ft expected.
* WHERE...Clarence Strait.
* WHEN...For the first Small Craft Advisory, from 1 AM to 4 AM AKDT Thursday. For the Gale Warning, from 4 AM Thursday to 7 AM AKDT Friday. For the second Small Craft Advisory, from 7 AM to 1 PM AKDT Friday.
* IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility.