FZPS40 PHFO 120956

HSFSP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

1130 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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



SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E



SYNOPSIS VALID 0600 UTC DEC 12 2025.

24 HOUR FORECAST VALID 0600 UTC DEC 13 2025.

48 HOUR FORECAST VALID 0600 UTC DEC 14 2025.



.WARNINGS.



...GALE WARNING...

.LOW NEAR 11S168E 1003 MB MOVING SE SLOWLY. TROUGH FROM 25S174W TO

15S174E TO LOW TO 07S160E NEARLY STATIONARY. WINDS 30 TO 35 KT WITHIN

150 NM E SEMICIRCLE OF LOW. WINDS 20 TO 30 KT ELSEWHERE WITHIN 150

NM NE OF LOW AND TROUGH. ISOLATED MODERATE TSTMS WITHIN 420 NM NE

OF TROUGH W OF 175E.

.24 HOUR FORECAST LOW NEAR 12S169E 999 MB. TROUGH FROM 25S175W TO 17S170E

TO LOW TO 07S160E. WINDS 30 TO 35 KT WITHIN 180 NM E SEMICIRCLE OF

LOW. WINDS 20 TO 30 KT ELSEWHERE WITHIN 210 NM NE OF TROUGH AND LOW

W OF 173E. SEAS 2.5 TO 4 M WITHIN 60 NM OF LOW.

.48 HOUR FORECAST LOW NEAR 16S171E 994 MB. TROUGH FROM 25S174W TO LOW

TO 08S160E. WINDS 30 TO 40 KT WITHIN 180 NM OF LOW. WINDS 20 TO 30

KT ELSEWHERE WITHIN 210 NM NE OF TROUGH BETWEEN 167E AND 175E. SEAS

2.5 TO 4 M WITHIN 90 NM OF LOW.



.SYNOPSIS AND FORECAST.



.TROUGH 25S135W 19S144W 16S154W MOVING SE SLOWLY. ISOLATED MODERATE

TSTMS WITHIN 90 NM OF TROUGH.

.24 HOUR FORECAST TROUGH 25S132W 18S150W 18S154W.

.48 HOUR FORECAST TROUGH 25S130W 22S140W 20S150W.



.TROUGH 18S133W 14S138W 09S149W MOVING SW SLOWLY. ISOLATED MODERATE

TSTMS FROM 20S TO 15S BETWEEN 136W AND 130W.

.24 HOUR FORECAST TROUGH DISSIPATED.



.TROUGH 11S168W 08S175W 05S180W MOVING SW SLOWLY. ISOLATED 

MODERATE TSTMS FROM 14S TO 10S BETWEEN 170W AND 167W. 

.24 HOUR FORECAST TROUGH DISSIPATED.



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

AREA.



$$



.FORECASTER SHIGESATO. HONOLULU HI.