FZHW60 PHFO 202134

OFFHFO



Offshore Waters Forecast for Hawaii

National Weather Service Honolulu HI

1134 AM HST Sun Sep 20 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.



PHZ105-210430-

1134 AM HST Sun Sep 20 2026



.Synopsis for the Hawaiian offshore waters...

Isolated thunderstorms will be possible over the S waters through

the rest of the weekend. Another trough will approach from the E 

on Tuesday and bring renewed thunderstorm potential through

midweek. Fresh to strong trades continue through the period. 



$$



PHZ180-210430-

Hawaiian Offshore Waters-

1134 AM HST Sun Sep 20 2026



.THIS AFTERNOON...E winds 15 to 25 kt. Seas 7 to 9 ft. Isolated

thunderstorms S Waters. 

.TONIGHT THROUGH MONDAY NIGHT...E winds 10 to 20 kt N of 24N, E 

15 to 25 kt elsewhere. Seas 7 to 9 ft. Isolated thunderstorms S 

Waters.

.TUESDAY AND WEDNESDAY...NE winds 15 to 25 kt. Seas 6 to 11 ft,

highest over SE waters. Isolated thunderstorms SE Waters.  

.THURSDAY...NE winds 15 to 25 kt. Seas 6 to 9 ft. Isolated

thunderstorms E of 160W and S of 23N.  



$$