Offshore Forecast
Issued by NWS Honolulu, HI

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835
FZHW60 PHFO 210308
OFFHFO

Offshore Waters Forecast for Hawaii
National Weather Service Honolulu HI
508 PM HST Wed Aug 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.

PHZ105-211100-
508 PM HST Wed Aug 20 2025

.Synopsis for the Hawaiian offshore waters...
High pressure far N of the area will remain nearly stationary
through the rest of this week. A weak trough passing S of the
state could bring some unsettled weather late Thursday into Friday
with possible thunderstorms across the SE waters.

$$

PHZ180-211100-
Hawaiian Offshore Waters-
508 PM HST Wed Aug 20 2025

.TONIGHT...E winds 10 to 20 kt. Seas 6 to 7 ft.
.THURSDAY...E winds 10 to 20 kt. Seas 6 to 7 ft.
.THURSDAY NIGHT AND FRIDAY...E winds 10 to 20 kt. Seas 6 to 8 ft.
Isolated thunderstorms SE waters.
.FRIDAY NIGHT AND SATURDAY...E winds 15 to 25 kt E of 160W, E 10
to 15 kt W of 160W. Seas 6 to 8 ft. Isolated thunderstorms SE
waters Friday night.
.SUNDAY AND MONDAY...E winds 10 to 20 kt. Seas 6 to 8 ft.

$$