Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out. Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. .TODAY...NW wind 25 kt. Seas 9 ft. .TONIGHT...E wind 20 kt becoming SE 30 kt after midnight. Seas 8 ft. Rain. .THU...S wind 35 kt. Seas 10 ft. .THU NIGHT...S wind 35 kt. Seas 18 ft. .FRI...W wind 40 kt. Seas 21 ft. .SAT...NW wind 40 kt. Seas 21 ft. .SUN...SE wind 35 kt. Seas 13 ft.