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...SW wind 30 kt. Seas 19 ft. Rain showers. .TONIGHT...SW wind 35 kt. Seas 19 ft. Rain showers. .SAT...SW wind 35 kt. Seas 22 ft. Rain showers. .SAT NIGHT...SW wind 30 kt. Seas 21 ft. .SUN THROUGH MON...NW wind 30 kt. Seas 13 ft. .TUE...W wind 20 kt. Seas 7 ft.