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...S wind 20 kt increasing to 30 kt after midnight. Seas 8 ft. Rain showers. .TUE...S wind 30 kt. Seas 12 ft. Rain showers. .TUE NIGHT...SW wind 30 kt. Seas 12 ft. Rain. .WED AND WED NIGHT...SW wind 30 kt. Seas 8 ft. .THU...W wind 20 kt. Seas 7 ft. .FRI THROUGH SAT...NW wind 25 kt. Seas 6 ft.