Expires:202412071630;;321242 FZHW60 PHFO 070918 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 1118 PM HST Fri Dec 6 2024 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. PHZ105-071630- 1118 PM HST Fri Dec 6 2024 .Synopsis for the Hawaiian offshore waters... Trade winds will show weakening trends through Sunday morning with land and sea breeze areas expanding over the near shore waters of each island. A strong high pressure system building in north of the state will cause trade winds speeds to strengthen to moderate levels by Sunday afternoon, then becoming fresh to strong trade winds from Monday night through the end of next week. $$