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. N wind 35 kt. Seas in ice free waters 8 ft. Extreme freezing spray at a rate of 4 cm per hour or greater may rapidly accumulate on vessels. .TONIGHT. E of Saint Matthew Island, N wind 40 kt. W of Saint Matthew Island, N wind 30 kt increasing to 40 kt after midnight. Seas in ice free waters 9 ft. Extreme freezing spray at a rate of 4 cm per hour or greater may rapidly accumulate on vessels. .SAT. N wind 40 kt diminishing to 30 kt in the afternoon. Seas in ice free waters 9 ft. Extreme freezing spray at a rate of 4 cm per hour or greater may rapidly accumulate on vessels. .SAT NIGHT. N wind 30 kt. Seas in ice free waters 7 ft. .SUN. N wind 25 kt. Seas in ice free waters 5 ft. .MON. NW wind 20 kt. Seas in ice free waters 4 ft. .TUE. NW wind 15 kt. Seas in ice free waters 3 ft.