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. .TONIGHT...W wind 20 kt. Seas 6 ft. .MON...SW wind 15 kt becoming S 30 kt in the afternoon. Seas 5 ft building to 9 ft in the afternoon. .MON NIGHT...SW wind 30 kt. Seas 12 ft. Rain showers. .TUE...SW wind 25 kt. Seas 12 ft. .TUE NIGHT...SW wind 20 kt. Seas 9 ft. .WED THROUGH THU...SW wind 25 kt. Seas 10 ft. .FRI...W wind 20 kt. Seas 7 ft.