FZPN40 PHFO 151007
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC OCT 15 2026.
24 HOUR FORECAST VALID 0600 UTC OCT 16 2026.
48 HOUR FORECAST VALID 0600 UTC OCT 17 2026.

.WARNINGS.


.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 30N152W TO 28N155W TO 26N159W MOVING SE SLOWLY. 
.24 HOUR FORECAST TROUGH FROM 30N149W TO 25N159W. 
.48 HOUR FORECAST TROUGH FROM 30N149W TO 26N156W. 

.TROUGH FROM 07N142W TO 00N144W MOVING W SLOWLY. SCATTERED 
MODERATE TSTMS WITHIN 180 NM OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 07N145W TO 00N145W. 
.48 HOUR FORECAST TROUGH DISSIPATED.

.LOW NEAR 06N174W 1007 MB. TROUGH FROM 07N178W TO LOW TO 04N168W.
BOTH LOW AND TROUGH MOVING W SLOWLY. SCATTERED MODERATE TO STRONG
TSTMS WITHIN 150 NM N OF LOW. 
.24 HOUR FORECAST LOW NEAR 06N176W.
.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 TSTMS WITHIN 150 NM EITHER SIDE OF
A LINE FROM 14N156W TO 00N148W. 

.ITCZ FROM 05N140W TO 05N141W. SCATTERED MODERATE TSTMS FROM 00N 
TO 08N E OF 151W.

$$

.FORECASTER BLOOD. HONOLULU HI.