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 20 kt becoming SE 35 kt in the afternoon. Seas 8 ft. Rain. .TONIGHT...S wind 40 kt. Seas 10 ft. Rain. .THU...SW wind 45 kt. Seas 17 ft. Widespread rain showers. .THU NIGHT...W wind 50 kt. Seas 22 ft. .FRI...NW wind 50 kt. Seas 23 ft. .SAT...SW wind 40 kt. Seas 19 ft. .SUN...SW wind 40 kt. Seas 11 ft.