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 15 kt. Seas 3 ft. .TONIGHT...Variable wind 10 kt E of Saint Matthew Island...SE 20 kt W of Saint Matthew Island. Seas 3 ft. .WED...E of Saint Matthew Island, S wind 15 kt becoming SE 25 kt in the afternoon. W of Saint Matthew Island, SE wind 30 kt. Seas 8 ft. .WED NIGHT...E wind 40 kt. Seas 17 ft. .THU...NE wind 45 kt. Seas 21 ft. .FRI...NE wind 25 kt. Seas 13 ft. .SAT...N wind 20 kt. Seas 9 ft.