FZHW60 PHFO 070302 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 502 PM HST Wed May 6 2026 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. PHZ105-071015- 502 PM HST Wed May 6 2026 .Synopsis for the Hawaiian offshore waters... A trough of low pressure stalls over the central waters through Thursday, then dissipates by Friday. High pressure builds northwest of the area over the weekend. $$ PHZ180-071015- Hawaiian Offshore Waters- 502 PM HST Wed May 6 2026 .TONIGHT...NW waters, N to NE winds 10 to 15 kt. S of 20N, E winds 10 to 15 kt. Elsewhere, variable winds 10 kt or less. Seas 5 to 9 ft, highest far N waters. .THURSDAY...NE winds up to 10 kt N of 23N, NE to E 10 to 15 kt elsewhere. Seas 6 to 9 ft, highest N half. .THURSDAY NIGHT THROUGH SUNDAY...NE to E winds 10 to 20 kt. Seas 6 to 7 ft. .MONDAY...NE winds 15 to 25 kt. Seas 6 to 7 ft. $$