FZPN40 PHFO 251050

HSFNP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

1100 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC OCT 25 2025.

24 HOUR FORECAST VALID 0600 UTC OCT 26 2025.

48 HOUR FORECAST VALID 0600 UTC OCT 27 2025.



.WARNINGS.



.NONE.



.SYNOPSIS AND FORECAST.



.FRONT 30N166E 28N160E NEARLY STATIONARY. ISOLATED MODERATE 

TSTMS WITHIN 180 NM OF FRONT. WINDS 20 TO 30 KT N OF FRONT. 

.24 HOUR FORECAST 28N166E 28N160E. WINDS 20 TO 25 KT N OF 

FRONT. 

.48 HOUR FORECAST FRONT DISSIPATED.   



.TROUGH 13N152W 06N159W MOVING W 15 KT. ISOLATED MODERATE

TSTMS WITHIN 180 NM OF TROUGH. 

.24 HOUR FORECAST TROUGH 13N161W 07N167W. 

.48 HOUR FORECAST TROUGH 12N169W 06N174W. 



.TROUGH 13N173E 08N168E MOVING W 10 KT. ISOLATED MODERATE

TSTMS WITHIN 180 NM OF TROUGH.  

.24 HOUR FORECAST TROUGH 12N167E 06N165E. 

.48 HOUR FORECAST TROUGH 14N160E 08N160E. 



.48 HOUR FORECAST NEW FRONT 30N170W 29N179W. WINDS 20 TO 25 KT

N OF FRONT.  



.WINDS 20 TO 30 KT FROM 23N TO 14N BETWEEN 151W AND 164W. 

.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 21N TO 16N BETWEEN 

155W AND 160W. 

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

155W AND 165W. 

.48 HOUR FORECAST WINDS 20 TO 25 KT N OF 28N BETWEEN 

168W AND 178E.  



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



.SEAS 2.5 TO 4 M E OF LINE 30N150W 21N178W 16N178W 10N140W. 

SEAS 2.5 TO 4 M N OF 29N W OF 164E.   

.24 HOUR FORECAST SEAS 2.5 TO 4 M N OF 25N W OF 171E. 

SEAS 2.5 TO 3.5 M FROM 22N TO 12N E OF 166W. 

.48 HOUR FORECAST SEAS 2.5 TO 3 M FROM 24N TO 17N W OF 175E. 



.SEAS 2.5 M OR LESS OVER REMAINDER FORECAST AREA.



.ITCZ 08N140W 08N156W. ISOLATED MODERATE TSTMS WITHIN 120 NM

OF ITCZ BETWEEN. 



.ISOLATED MODERATE TSTMS FROM 11N TO 04N W OF 174E. 



.ISOLATED MODERATE TSTMS FROM N OF 16N W OF 168E. 



$$



.FORECASTER THOMAS. HONOLULU HI.