FZPS40 PHFO 201124

HSFSP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

1130 UTC WED AUG 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 AUG 20 2025.

24 HOUR FORECAST VALID 0600 UTC AUG 21 2025.

48 HOUR FORECAST VALID 0600 UTC AUG 22 2025.



.WARNINGS.



.NONE.



.SYNOPSIS AND FORECAST.



.TROUGH FROM 25S133W TO 20S135W MOVING S SLOWLY. ISOLATED 

MODERATE TSTMS WITHIN 150 NM E OF TROUGH S OF 21S.

.24 HOUR FORECAST TROUGH MOVED S OF AREA.



.FRONT FROM 25S163W TO 22S165W TO 15S173W MOVING E 10 KT. 

.24 HOUR FORECAST FRONT FROM 25S158W TO 20S165W. 

.48 HOUR FORECAST FRONT FROM 25S151W TO 23S159W. 



.SE WINDS 20 TO 25 KT BETWEEN TWO LINES FROM 15S177W TO 25S165E

AND FROM 09S173E TO 16S160E. 

.24 HOUR FORECAST SE WINDS 20 TO 25 KT BETWEEN TWO LINES FROM 

14S173W TO 25S175E AND FROM 07S178E TO 13S160E.

.48 HOUR FORECAST SE WINDS 20 TO 25 KT BETWEEN TWO LINES FROM 

18S171W TO 25S168E AND FROM 09S179E TO 09S160E.



.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.



.SEAS 2.5 TO 3 M E OF A LINE FROM 01S128W TO 25S155W...AND BETWEEN

TWO LINES FROM 15S177W TO 25S165E AND FROM 09S173E TO 16S160E. 

.24 HOUR FORECAST SEAS 2.5 TO 3.5 M S OF 07S W OF 175W. SEAS 2.5 

TO 3 M E OF A LINE FROM 05S126W TO 25S140W. 

.48 HOUR FORECAST SEAS 2.5 TO 3.5 M FROM 25S TO 05S E OF 135W... 

SAND S OF 05S W OF 177W. 



.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.



.SCATTERED MODERATE TSTMS WITHIN 120 NM OF A LINE FROM 13S171E TO

08S160E. 





$$



.FORECASTER BLOOD. HONOLULU HI.