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 30 kt. Seas 16 ft. Rain. .TONIGHT...S wind 30 kt. Seas 12 ft. Rain. .WED...W wind 25 kt. Seas 10 ft. .WED NIGHT...S wind 30 kt. Seas 9 ft. .THU...S wind 35 kt. Seas 13 ft. .FRI THROUGH SAT...NW wind 30 kt. Seas 16 ft.