Offshore Forecast
Issued by NWS Honolulu, HI

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FZHW60 PHFO 180937
OFFHFO

Offshore Waters Forecast for Hawaii
National Weather Service Honolulu HI
1137 PM HST Sun Aug 17 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.

PHZ105-181630-
1137 PM HST Sun Aug 17 2025

.Synopsis for the Hawaiian offshore waters...
High pressure ridging building N of the region will maintain
moderate to fresh E trades through the forecast period.

$$

PHZ180-181630-
Hawaiian Offshore Waters-
1137 PM HST Sun Aug 17 2025

.REST OF TONIGHT...E winds 10 to 20 kt. Seas 6 to 7 ft.
.MONDAY AND MONDAY NIGHT...E winds 10 to 20 kt. Seas 6 to 7 ft.
.TUESDAY...E winds 10 to 15 kt N of 24N, E 15 to 25 kt elsewhere.
Seas 6 to 7 ft.
.TUESDAY NIGHT...E winds 10 to 15 kt N of 24N, E 15 to 25 kt
elsewhere. Seas 6 to 7 ft.
.WEDNESDAY...E winds 10 to 20 kt. Seas 6 to 7 ft.
.THURSDAY...E winds 15 to 25 kt. Seas 6 to 7 ft. Isolated
thunderstorms SE Waters.
.FRIDAY...E winds 10 to 15 kt N of 24N, E 15 to 25 kt elsewhere.
Seas 6 to 8 ft. Isolated thunderstorms SE Waters.

$$