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 40 kt becoming W 20 kt in the afternoon. Seas 8 ft. Rain. .TONIGHT...SW wind 10 kt becoming SE 20 kt after midnight. Seas 5 ft. .THU...SE wind 35 kt. Seas 7 ft. Rain. .THU NIGHT...S wind 30 kt. Seas 8 ft. .FRI...SE wind 30 kt. Seas 8 ft. .SAT...N wind 30 kt. Seas 6 ft. .SUN...E wind 40 kt. Seas 4 ft.