FZPN40 PHFO 250308

HSFNP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

0500 UTC SAT OCT 25 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC OCT 25 2025.

24 HOUR FORECAST VALID 0000 UTC OCT 26 2025.

48 HOUR FORECAST VALID 0000 UTC OCT 27 2025.



.WARNINGS.



.NONE.



.SYNOPSIS AND FORECAST.



.TROUGH 30N143W 29N147W 28N152W MOVING SE 15 KT. 

.24 HOUR FORECAST TROUGH 28N140W 26N146W 26N150W. 

.48 HOUR FORECAST TROUGH DISSIPATED.



.TROUGH 15N150W 11N153W 06N154W MOVING W 10 KT. 

.24 HOUR FORECAST TROUGH 13N157W 08N159W. 

.48 HOUR FORECAST TROUGH 14N161W 09N166W. 



.TROUGH 13N174E 10N171E 05N171E MOVING W 15 KT. 

.24 HOUR FORECAST TROUGH 15N179E 10N178E. 

.48 HOUR FORECAST TROUGH DISSIPATED. 



.TROUGH 25N165W 19N163W MOVING W 15 KT. 

.24 HOUR FORECAST TROUGH 25N162W 21N160E. 

.48 HOUR FORECAST TROUGH MOVED W OF AREA. 



.24 HOUR FORECAST NEW FRONT 30N171E 28N160E MOVING NE 15 KT. 

.48 HOUR FORECAST FRONT WEAKENING TO TROUGH 30N174E 28N170E. 



.WINDS 20 TO 30 KT FROM 15N TO 23N BETWEEN 155W AND 163W. 

.24 HOUR FORECAST WINDS 20 TO 30 KT N OF LINE 30N167E

28N160E. WINDS 20 TO 25 KT ELSEWHERE FROM 15N TO 25N BETWEEN

155W AND 165W. 

.48 HOUR FORECAST WINDS DIMINISHING TO LESS THAN 20 KT. 



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



.SEAS 2.5 TO 4 M E OF LINE 30N163W 20N175E 15N175E 10N160W

15N140W. 

.24 HOUR FORECAST SEAS 2.5 TO 4 M N OF LINE 30N169E 

27N160E...AND E OF LINE 30N152W 20N175E 10N170W 08N140W. 

.48 HOUR FORECAST SEAS 2.5 TO 3 M N OF LINE 30N170E 

25N160E...AND E OF LINE 30N145W 20N170W 15N170W 10N140W. 



.SEAS 2.5 M OR LESS OVER REMAINDER FORECAST AREA.



.ITCZ 08N140W 08N142W...AND 06N160W 05N165W 09N177E...AND

09N167E 09N160E. ISOLATED MODERATE TSTMS WITHIN 120 NM

OF ITCZ BETWEEN 140W AND 165E. 



.SCATTERED MODERATE TO STRONG TSTMS FROM 05N TO 12N W OF 

165E...AND WITHIN 90 NM OF POINT 07N169E...AND FROM 20N TO 

30N BETWEEN 172E AND 165E. 



$$



.FORECASTER PECHACEK. HONOLULU HI.