598
FZHW60 PHFO 092112
OFFHFO

Offshore Waters Forecast for Hawaii
National Weather Service Honolulu HI
1112 AM HST Thu Oct 9 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.

PHZ105-100500-
1112 AM HST Thu Oct 9 2025

.Synopsis for the Hawaiian offshore waters...
A surface trough over NW waters will lift NW and dissipate by the
end of the week. High pressure will build far northeast of the
waters this weekend before a potential surface trough develops
north of the waters early next week. An upper level trough could allow
for some isolated thunderstorms over northern offshore waters.

$$

PHZ180-100500-
Hawaiian Offshore Waters-
1112 AM HST Thu Oct 9 2025

.THIS AFTERNOON...Trough over NW waters moving NW. NW Half, S
winds up to 10 kt. SE half, SE 10 to 15 kt highest far S waters.
Seas 4 to 6 ft. Isolated thunderstorms NW half.
.TONIGHT THROUGH FRIDAY NIGHT...N of 21N, S winds up to 10 kt. S
of 21N, E to SE winds 10 to 20 kt. Seas 4 to 6 ft. Isolated
thunderstorms far NW waters and far S waters through Friday.
.SATURDAY THROUGH MONDAY...N of 23N E winds up to 10 kt. S of 23N
E winds 10 to 20 kt. Seas 6 to 7 ft Saturday increasing to 8 ft
late Sunday through Monday. Isolated thunderstorms NW half
Saturday, then N of 21N Sunday. Scattered thunderstorms N of 21N
by Monday.

$$