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...SW wind 20 kt. Seas 11 ft. .WED...S wind 45 kt. Seas 10 ft building to 15 ft in the afternoon. Rain. .WED NIGHT...S wind 35 kt becoming SW 45 kt after midnight. Seas 15 ft building to 23 ft after midnight. Widespread rain showers. .THU AND THU NIGHT...NW wind 50 kt. Seas 31 ft. .FRI...W wind 45 kt. Seas 26 ft. .SAT...S wind 35 kt. Seas 17 ft. .SUN...SW wind 40 kt. Seas 25 ft.