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National Weather Service Marine Forecast FZHW60 PHFO

FZHW60 PHFO 260928
OFFHFO

Offshore Waters Forecast for Hawaii
National Weather Service Honolulu HI
1128 PM HST Wed Apr 25 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.

PHZ105-261615-
1128 PM HST Wed Apr 25 2018

Synopsis for the Hawaiian offshore waters

Strong high pressure far NE of the area will weaken through
Thursday. A slow-moving low will rapidly develop N of the areas
on Friday, and linger through the weekend. The low will send a
front across the offshore waters from Thursday night through
Sunday, with the front stalling over eastern waters Sunday.



PHZ180-261615-
Hawaiian Offshore Waters-
1128 PM HST Wed Apr 25 2018

REST OF TONIGHT
E winds 15 to 25 kt. Seas 6 to 9 ft.

THURSDAY
N of 24N, E to SE winds 10 to 15 kt. S of 24N,
E winds 15 to 20 kt. Seas 6 to 8 ft.

THURSDAY NIGHT
N of 21N W of 160W, N to NE winds 15 to 20 kt.
Elsewhere, E to SE winds 10 to 15 kt. Seas 6 to 8 ft.

FRIDAY and FRIDAY NIGHT
Front over central waters. NW half, NW to
N winds 15 to 20 kt. SE half, SE to S winds 15 to 20 kt, except up
to 25 kt N of 23N E of 158W. Seas 6 to 8 ft, becoming 6 to 12 ft
Friday night, highest NW.

SATURDAY
Front slowing over central waters. NW half, NW to N
winds 15 to 20 kt. Seas 8 to 11 ft. SE half, Variable winds 5 to 15
kt. Seas 5 to 8 ft.

SUNDAY AND MONDAY
N of 22N, NW to W winds 10 to 15 kt. Seas 11 to
14 ft. S of 22N, Variable winds 10 kt or less. Seas 6 to 11 ft.