Expires:202506232230;;246145 FZHW60 PHFO 231506 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 506 AM HST Mon Jun 23 2025 Hawaiian offshore waters beyond 40 nautical miles out to 240 nautical miles including the portion of the Papahanaumokuakea Marine National Monument east of French Frigate Shoals Seas given as significant wave height, which is the average height of the highest 1/3 of the waves. Individual waves may be more than twice the significant wave height. PHZ105-232230- 506 AM HST Mon Jun 23 2025 .Synopsis for the Hawaiian offshore waters... High pressure will remain anchored NE of Hawaii and gradually weaken through the week. $$