National Weather Service Marine Forecast FZHW60 PHFO

FZHW60 PHFO 172200
OFFHFO

Offshore Waters Forecast for Hawaii
National Weather Service Honolulu HI
1200 PM HST Sun Jan 17 2021

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.

PHZ105-180430-
1200 PM HST Sun Jan 17 2021

Synopsis for the Hawaiian offshore waters

A surface ridge over SE waters will move E of the area today as a
strong cold front over the NW waters moves SE through early Monday.
The front will stall over central waters move very slowly W Monday
and Tuesday increasing the potential for widespread showers,
locally heavy and isolated thunderstorms. Strong to near gale
force north and northeast winds will follow the front.

PHZ180-180430-
Hawaiian Offshore Waters-
1200 PM HST Sun Jan 17 2021

THIS AFTERNOON
Front over NW waters. NW of front, NW winds 20
to 30 kt. S of 20N, SE winds 5 to 15 kt. Elsewhere, S to SW
winds 10 to 20 kt. Seas 9 to 16 ft. Isolated thunderstorms NW
waters.

TONIGHT
Front from 25N 155W to 17N 159W. NW of front, N to NE
winds 20 to 30 kt, seas 12 to 18 ft. SE of front, SE to S winds 10
to 15 kt, seas 8 to 12 ft. Isolated thunderstorms.

MONDAY THROUGH TUESDAY
Trough from 24N 154W to 17N 160W. NW of
trough, N to NE winds 20 to 30 kt, seas 12 to 18 ft, diminishing
to 10 to 14 ft Tuesday. SE of trough, SE to S winds 10 kt, seas 6
to 12 ft. Isolated thunderstorms.

WEDNESDAY AND THURSDAY
NE to E winds 15 to 25 kt. Seas 7 to 11
ft, subsiding to 6 to 9 ft Thursday.