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National Weather Service Marine Forecast FZHW60 PHFO

FZHW60 PHFO 210324
OFFHFO

Offshore Waters Forecast for Hawaii
National Weather Service Honolulu HI
524 PM HST Thu Sep 20 2018

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.

PHZ105-211045-
524 PM HST Thu Sep 20 2018

Synopsis for the Hawaiian offshore waters

As the surface trough exits the W waters tonight, moderate to
fresh E to SE winds will move in across the Hawaiian waters
through the weekend. Winds will likely shift around to the S and
SE early next week as an area of low pressure forms several
hundred miles NW of Kauai.



PHZ180-211045-
Hawaiian Offshore Waters-
524 PM HST Thu Sep 20 2018

TONIGHT
NW half, E to SE winds 5 to 10 kt. Elsewhere, E winds
10 to 20 kt. Seas 5 to 8 ft. Highest SE. Isolated thunderstorms
far S and N waters.

FRIDAY THROUGH SUNDAY
W half, SE winds 10 to 20 kt. E half, E
winds 10 to 20 kt. Seas 6 to 7 ft. Isolated thunderstorms W
waters.

MONDAY AND TUESDAY
SE to S winds 10 to 20 kt. Seas 6 to 7 ft.
Isolated thunderstorms W waters