580 

FZPN40 PHFO 151455

HSFNP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

1700 UTC THU OCT 15 2026



SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 180W



SYNOPSIS VALID 1200 UTC OCT 15 2026.

24 HOUR FORECAST VALID 1200 UTC OCT 16 2026.

48 HOUR FORECAST VALID 1200 UTC OCT 17 2026.



.WARNINGS.





.NONE.



.SYNOPSIS AND FORECAST.



.TROUGH FROM 30N151W TO 27N156W TO 26N160W MOVING ESE SLOWLY. 

.24 HOUR FORECAST TROUGH FROM 30N149W TO 25N160W. 

.48 HOUR FORECAST TROUGH FROM 30N150W TO 26N160W. 



.TROUGH FROM 06N142W TO 03N143W TO 00N143W MOVING WNW SLOWLY. SCATTERED  

MODERATE TSTMS WITHIN 150 NM W OF TROUGH N OF 03N.

.24 HOUR FORECAST TROUGH FROM 07N145W TO 04N147W TO 01N148W. 

.48 HOUR FORECAST TROUGH FROM 08N148W TO 04N152W.



.LOW NEAR 05N173W 1007 MB. TROUGH FROM LOW TO 01N165W. BOTH LOW

AND TROUGH MOVING W SLOWLY. SCATTERED MODERATE TSTMS WITHIN 90 NM

N OF LOW. 

.24 HOUR FORECAST LOW NEAR 05N176W.

.48 HOUR FORECAST LOW WEAKENED INTO TROUGH AND MOVED W OF AREA. 



.WINDS 20 TO 25 KT FROM 29N TO 27N BETWEEN 165W AND 174W.

.24 HOUR FORECAST WINDS WEAKENED TO 20 KT OR LESS. 



.SEAS 2.5 TO 3 M FROM 29N TO 27N BETWEEN 167W AND 173W. 

.24 HOUR FORECAST SEAS SUBSIDED TO 2.5 M OR LESS. 



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

REMAINDER OF FORECAST AREA.



.SCATTERED TO ISOLATED MODERATE TO STRONG TSTMS FROM 09N TO 03N 

BETWEEN 144W AND 149W...WITHIN 90 NM EITHER SIDE OF LINES FROM 

12N154W TO 00N151W AND FROM 12N167W TO 06N177W. 





$$



.FORECASTER BLOOD. HONOLULU HI.