Offshore Forecast
Issued by NWS Honolulu, HI

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FZHW60 PHFO 120924
OFFHFO

Offshore Waters Forecast for Hawaii
National Weather Service Honolulu HI
1124 PM HST Tue Aug 11 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.

PHZ105-121630-
1124 PM HST Tue Aug 11 2026

.Synopsis for the Hawaiian offshore waters...
High pressure to the far northeast will slowly drift into
position north of the Hawaiian Islands into the weekend,
producing  moderate to locally strong trade winds across the
region. A tropical cyclone is likely to develop SE of the area
over the next couple of days and advance toward the Hawaii Region
on Thursday, possibly entering the offshore waters by Friday.

$$

PHZ180-121630-
Hawaiian Offshore Waters-
1124 PM HST Tue Aug 11 2026

.REST OF TONIGHT...W of 160E, E winds 10 to 15 kt. Elsewhere E
winds 10 to 20 kt. Seas 6 to 8 ft.
.WEDNESDAY AND WEDNESDAY NIGHT...NE winds 10 to 20 kt. Seas 6 to
9 ft.
.THURSDAY AND THURSDAY NIGHT...NE winds 15 to 25 kt. Seas 6 to 11
ft.
.FRIDAY...TROPICAL STORM CONDITIONS POSSIBLE...NW half, NE winds
15 to 25 kt. SE half, NE winds 20 to 45 kt. Seas 7 to 20 ft,
highest far SE waters.
.SATURDAY...TROPICAL STORM CONDITIONS POSSIBLE...NW half, NE
winds 15 to 25 kt. SE half, NE winds 20 to 45 kt. Seas 7 to 24 ft,
highest SE half.
.SUNDAY...TROPICAL STORM CONDITIONS POSSIBLE...N of 20N, NE winds
20 to 40 kt. S of 20N, variable winds 10 to 20 kt. Seas 7 to 24
ft, highest N waters.

$$