FZPN40 PHFO 161023
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC FRI OCT 16 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC OCT 16 2026.
24 HOUR FORECAST VALID 0600 UTC OCT 17 2026.
48 HOUR FORECAST VALID 0600 UTC OCT 18 2026.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 05N176W 1007 MB MOVING W SLOWLY. TROUGH FROM 02N164W 
TO LOW TO 06N180W. ISOLATED MODERATE TSTMS S OF 12N W OF 169W. 
.24 HOUR FORECAST LOW NEAR 05N174W. TROUGH FROM 03N164W TO LOW 
TO 07N180W.
.48 HOUR FORECAST MOVED W OF AREA AND WEAKENED TO TROUGH FROM 
05N170W 07N180W.

.TROUGH FROM 22N151W 19N152W MOVING E 10 KT.
.24 HOUR FORECAST TROUGH 23N157W 20N158W 17N158W.
.48 HOUR FORECAST TROUGH WEAKENED.

.TROUGH FROM 30N149W 28N152W 27N154W 26N156W MOVING E 10 KTS.
.24 HOUR FORECAST TROUGH 30N130N149W 29N152W 28N154W.
.48 HOUR FORECAST TROUGH WEAKENED AND LIFTED NORTH OF AREA.

.24 HOUR FORECAST NEW TROUGH 22N144W 15N152W.
.48 HOUR FORECAST TROUGH WEAKENED. 

.WINDS 20 TO 25 KT N OF 12N BETWEEN 150W AND 175W.
.24 HOUR FORECAST WINDS WINDS 20 TO 25 KT N OF 18N BETWEEN 151W 
AND 162W. 
.48 HOUR FORECAST WINDS 20 TO 25 KT N OF 12N BETWEEN 145W AND 
175W.

.SEAS 2.5 TO 3 M N OF 25N BETWEEN 151W AND 177W. 
.24 HOUR FORECAST SEAS 2.5 TO 3 M N OF 12N BETWEEN 141W AND 169W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M N OF 11N.

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

.ITCZ 01N140W 03N145W 04N151W 02N158W. ISOLATED MODERATE TSTMS 
WITHIN 120NM OF ITCZ.

.ISOLATED MODERATE TSTMS FROM 07N TO 14N BETWEEN 150W AND 161W.

$$

.FORECASTER M BALLARD. HONOLULU HI.