A vigorous cold front will move across the coastal waters this morning...followed by a cold upper level low which may touch off some isolated thunderstorms later today. Another strong frontal system will move into Washington and Oregon Friday evening. High pressure then builds across the Pacific northwest for the weekend...with offshore flow developing for Sunday and Monday.

S wind 30 to 40 kt becoming W 25 to 35 kt. Wind waves 5 to 7 ft. SW swell 7 ft at 10 seconds. Rain turning to showers. Chance of thunderstorms in the afternoon.

W wind 15 to 25 kt easing to SW 10 to 15 kt after midnight. Wind waves 2 to 4 ft. W swell 10 ft at 12 seconds chance of evening showers. Chance of rain late.

S wind 20 to 30 kt rising to 30 to 40 kt. Combined seas building to 17 ft at 10 seconds by late afternoon. Rain.

W wind 15 to 25 kt. Wind waves 3 to 5 ft. W swell 15 ft.

W wind 15 to 25 kt...easing to 10 to 15 kt in the afternoon...then becoming SW in the evening. Wind waves 2 to 4 ft...subsiding to 1 or 2 ft. W swell 15 ft...subsiding to 13 ft in the evening.

E wind 15 to 25 kt. Wind waves 2 to 4 ft. W swell 12 ft...becoming NW 9 ft in the afternoon.

Se wind 15 to 25 kt. Wind waves 3 to 5 ft. W swell 7 ft.