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...S wind 15 kt increasing to 25 kt in the afternoon. Seas 5 ft building to 9 ft in the afternoon. .TONIGHT...S wind 30 kt. Seas 12 ft. Rain showers. .TUE...SW wind 30 kt. Seas 12 ft. Rain showers. .TUE NIGHT...SW wind 25 kt. Seas 9 ft. .WED...SW wind 35 kt. Seas 13 ft. .THU...SW wind 25 kt. Seas 11 ft. .FRI...W wind 20 kt. Seas 7 ft.