The Offshore Waters Forecast for Hawai`i.

                        

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FZHW60 PHFO 220307

OFFHFO



Offshore Waters Forecast for Hawaii

National Weather Service Honolulu HI

507 PM HST Sat Dec 21 2024



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.



PHZ105-221115-

507 PM HST Sat Dec 21 2024



.Synopsis for the Hawaiian offshore waters...

A weak surface ridge will remain over central waters into Sunday

while a large NW swell peaks. High pressure will build NW of the

area Sunday night and pass N of the area Monday, pushing a

weakening front over N waters. The high will move off to the NE

Tuesday and Wednesday as a trailing surface ridge moves into far N

waters.



$$



PHZ180-221115-

Hawaiian Offshore Waters-

507 PM HST Sat Dec 21 2024



.TONIGHT...N of 23N, W winds 5 to 15 kt. S of 18N, E winds 10 to

15 kt. Elsewhere, variable winds up to 10 kt. Seas 10 to 15 ft,

building to 18 to 22 ft N of 22N.

.SUNDAY...Front entering far N waters. N of 23N, W winds 5 to 15

kt, becoming N 15 to 20 kt N of front. S of 18N, E winds 10 to 15

kt. Elsewhere, variable winds up to 10 kt. Seas 9 to 21 ft,

highest N of 20N.

.SUNDAY NIGHT...Front moving across N waters. NE winds 10 to 20

kt. Seas 10 to 18 ft.

.MONDAY...E winds 15 to 25 kt. Seas 9 to 14 ft.

.TUESDAY THROUGH WEDNESDAY...S of 20N, E winds 15 to 20 kt. N of

20N, E to SE winds 5 to 15 kt. Seas 8 to 12 ft, subsiding to 7 to

10 ft Wednesday.

.THURSDAY...S of 20N, E winds 10 to 20 kt. N of 20N, SE to S

winds 5 to 15 kt. Seas 9 to 16 ft.



$$