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...N wind 15 kt becoming SW in the afternoon. Seas 5 ft. .TONIGHT...S wind 25 kt increasing to 35 kt after midnight. Seas 5 ft building to 9 ft after midnight. Rain. .THU...S wind 40 kt. Seas 17 ft. Rain. .THU NIGHT...SW wind 25 kt. Seas 15 ft. .FRI...SW wind 25 kt. Seas 15 ft. .SAT...SW wind 20 kt. Seas 11 ft. .SUN...W wind 25 kt. Seas 12 ft.