FZPN40 PHFO 121512

HSFNP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

1700 UTC FRI DEC 12 2025



SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS



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.



THIS HIGH SEAS FORECAST USES 1-MINUTE AVERAGE WINDS WHICH MAY BE

HIGHER THAN 10-MINUTE AVERAGE WINDS.



SECURITE



NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E



SYNOPSIS VALID 1200 UTC DEC 12 2025.

24 HOUR FORECAST VALID 1200 UTC DEC 13 2025.

48 HOUR FORECAST VALID 1200 UTC DEC 14 2025.



.WARNINGS.



...GALE WARNING...

.FRONT 30N175W 24N180E 20N173E 16N160E MOVING E 25 KT. WINDS 20 

TO 30 KT WITHIN 480 NM NW OF FRONT... AND WITHIN 90 NM E OF FRONT 

N OF 22N. 

.24 HOUR FORECAST FRONT 30N158W 20N170W 16N180E 16N170E. WINDS 30

TO 35 KT N OF 27N BETWEEN 177W AND 160W. WINDS 20 TO 30 KT ELSEWHERE

N OF LINE 30N156W 17N180W 17N176E.

.48 HOUR FORECAST FRONT 30N149W 22N163W THENCE TROUGH 21N170W 14N180W.

WINDS 20 TO 30 KT N OF 25N BETWEEN 156W AND 144W. 



.SYNOPSIS AND FORECAST.



.FRONT 30N146W 25N150W 21N154W THENCE TROUGH 17N165W 17N171W MOVING

NE 10 KT E OF 160W AND NEARLY STATIONARY ELSEWHERE. WINDS 20 TO 

30 KT N OF 26N BETWEEN FRONT AND 140W.

.24 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N143W 22N153W 18N163W.

WINDS EASED TO 20 KT OR LESS.

.48 HOUR FORECAST FRONT MOVED N OF AREA.



.TROUGH 30N148W 23N161W MOVING NE 10 KT. 

.24 HOUR FORECAST TROUGH DISSIPATED.



.24 HOUR FORECAST NEW FRONT 30N167E 25N160E. WINDS 20 TO 25 KT NW

OF FRONT. 

.48 HOUR FORECAST FRONT 30N180E 24N170E 22N160E. WINDS 20 TO 25 KT

NW OF FRONT. 



.48 HOUR FORECAST NEW TROUGH 30N156W 24N163W. WINDS 20 TO 25 KT WITHIN

90 NM OF TROUGH.



.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 15N TO 20N W OF 175E. 



.SEAS 4 TO 5 M N OF LINE 30N180E 21N170E 21N162E. SEAS 2.5 TO 4 M

ELSEWHERE N OF LINE 30N175W 18N172E 16N160E. SEAS 2.5 TO 4 M N OF

24N BETWEEN 167W AND 143W. 

.24 HOUR FORECAST SEAS 4 TO 6 M N OF A LINE 30N170W 20N178W 18N170E.

SEAS 2.5 TO 4 M ELSEWHERE N OF A LINE 30N163W 20N178W 14N170E 

13N160E. 

.48 HOUR FORECAST SEAS 4 TO 7 M N OF LINE 30N150W 20N170W 23N180W.

SEAS 2.5 TO 4 M ELSEWHERE N OF LINE 30N145W 17N170W 10N170E

10N160E... EXCEPT FROM 28N TO 24N BETWEEN 164E AND 175E.



.WINDS 20 KT OR LESS AND SEAS 2.5 M OR LOWER OVER THE REMAINDER 

OF THE FORECAST AREA.



.ITCZ 08N140W 08N160W 06N171W 08N175E 05N163E. ISOLATED MODERATE 

TSTMS WITHIN 30 NM OF ITCZ BETWEEN 160W AND 150W. 



$$



.FORECASTER SHIGESATO. HONOLULU HI.