FZHW60 PHFO 221500
OFFHFO

Offshore Waters Forecast for Hawaii
National Weather Service Honolulu HI
500 AM HST Sat Aug 22 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.

PHZ105-222300-
500 AM HST Sat Aug 22 2026

.Synopsis for the Hawaiian offshore waters...
At 500 AM HST, Tropical Storm Moke was located at 14.8N 150.2W...
moving WNW at 10 knots. Tropical Storm Moke is expected to track 
across the S offshore waters tonight through early Monday morning.

MOKE FORECAST POSITIONS
200 PM HST SATURDAY  15.2N 151.7W
200 AM HST SUNDAY    15.6N 154.0W
200 PM HST SUNDAY    16.0N 156.4W
200 AM HST MONDAY    16.4N 158.9W
200 PM HST MONDAY    16.9N 161.5W
200 AM HST TUESDAY   17.4N 163.8W
200 AM HST WEDNESDAY 18.6N 169.1W
200 AM HST THURSDAY  19.4N 173.1W

$$

PHZ180-222300-
Hawaiian Offshore Waters-
500 AM HST Sat Aug 22 2026

...TROPICAL STORM WARNING IN EFFECT...

.TODAY...NW Half, E winds 10 to 20 kt. SE Half, NE winds 20 to 30
kt. Seas 6 to 9 ft this morning, building 7 to 11 ft this
afternoon. Isolated thunderstorms SE waters. 
.TONIGHT...TROPICAL STORM CONDITIONS SE HALF. Elsewhere, E NE 
winds 15 to 25 kt. Seas 6 to 13 ft. Isolated thunderstorms SE 
Waters. 
.SUNDAY...TROPICAL STORM CONDITIONS S OF 17N. Elsewhere, E winds 
10 to 20 kt. Seas 7 to 12 ft. Isolated thunderstorms SE Waters.
.SUNDAY NIGHT...TROPICAL STORM CONDITIONS S OF 20N W OF 155W.
Elsewhere, E winds 15 to 25 kt. Seas 7 to 10 ft, higher S of 19N W
of 158W. Isolated thunderstorms S of 20N. 
.MONDAY THROUGH WEDNESDAY...E winds 10 to 20 kt. Seas 6 to 8 ft. 
Isolated thunderstorms S Half. 

$$