FZHW60 PHFO 201527
OFFHFO

Offshore Waters Forecast for Hawaii
National Weather Service Honolulu HI
527 AM HST Tue May 20 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.

PHZ105-202215-
527 AM HST Tue May 20 2025

.Synopsis for the Hawaiian offshore waters...
High pressure centered far NE and N of the islands will maintain 
moderate to fresh easterly flow through the remainder of this 
week. Isolated thunderstorms will be possible for the NW half of 
the area Wednesday through Friday.   

$$

PHZ180-202215-
Hawaiian Offshore Waters-
527 AM HST Tue May 20 2025

.TODAY...E winds 15 to 25 kt. Seas 6 to 8 ft. 
.TONIGHT AND WEDNESDAY...E winds 15 to 25 kt. Seas 6 to 7 ft. 
.WEDNESDAY NIGHT...E winds 15 to 25 kt. Seas 6 to 7 ft. Isolated
thunderstorms NW Half. 
.THURSDAY...E winds 20 to 30 kt. Seas 6 to 8 ft. Isolated
thunderstorms NW Half. 
.FRIDAY...E winds 15 to 25 kt. Seas 6 to 8 ft. Isolated
thunderstorms NW Half. 
.SATURDAY...E winds 15 to 25 kt. Seas 6 to 8 ft.  

$$