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...N wind 10 to 20 kt. Seas 7 ft. .WED...N wind up to 15 kt becoming SE in the afternoon. Seas 3 to 6 ft. .WED NIGHT...S wind 15 to 30 kt increasing to 35 to 50 kt after midnight. Seas 5 to 10 ft building to 9 to 17 ft after midnight. Rain. .THU...S wind 35 to 50 kt. Seas 13 to 21 ft. .THU NIGHT...S wind 15 to 30 kt. Seas 9 to 14 ft. .FRI THROUGH SUN...SW wind 15 to 30 kt. Seas 9 to 14 ft.