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...SE wind 30 kt becoming S 45 kt in the afternoon. Seas 9 ft building to 16 ft in the afternoon. Rain. .TONIGHT...SW wind 35 kt increasing to 50 kt after midnight. Seas 15 ft building to 26 ft after midnight. Rain showers. .THU...W wind 55 kt. Seas 40 ft. Widespread rain showers. .THU NIGHT...W wind 55 kt. Seas 40 ft. .FRI...NW wind 45 kt. Seas 32 ft. .SAT...S wind 35 kt. Seas 16 ft. .SUN...SW wind 40 kt. Seas 18 ft.