Offshore Waters Forecast for the Bering Sea 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...NW wind up to 15 kt becoming S 15 to 30 kt after midnight. Seas 6 ft. Rain. .WED...S wind 30 to 45 kt. Seas 6 to 11 ft building to 10 to 18 ft in the afternoon. Rain. .WED NIGHT...S wind 50 to 65 kt becoming SW 40 to 55 kt after midnight. Seas 15 to 30 ft. Rain. .THU...SW wind 25 to 40 kt. Seas 13 to 21 ft. .THU NIGHT...SW wind 25 to 40 kt. Seas 14 to 22 ft. .FRI THROUGH SAT...SW wind 25 to 40 kt. Seas 14 to 22 ft. .SUN...W wind 25 kt. Seas 10 to 13 ft.