830
FZPN40 PHFO 130331
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC SUN SEP 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SEP 13 2026.
24 HOUR FORECAST VALID 0000 UTC SEP 14 2026.
48 HOUR FORECAST VALID 0000 UTC SEP 15 2026.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N168W 26N171W THENCE TROUGH 22N177W. FRONT AND TROUGH
NEARLY STATIONARY.
.24 HOUR FORECAST FRONT AND TROUGH MERGED WITH FRONT DESCRIBED
BELOW.

.FRONT 30N172W 26N174W THENCE MOVING E SLOWLY.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N173W 25N180W.
.48 HOUR FORECAST TROUGH 30N176W 26N180W.

.TROUGH 30N151W 28N151W MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH 30N152W 29N152W.
.48 HOUR FORECAST TROUGH MOVED N OF AREA.

.LOW NEAR 12N147W 1007 MB. TROUGH FROM 28N142W TO 24N145W TO LOW.
TROUGH MOVING W 10 KT AND LOW NEARLY STATIONARY. ISOLATED
MODERATE TSTMS FROM 20N TO 16N WITHIN 180 NM E OF TROUGH.
.24 HOUR FORECAST LOW NEAR 12N149W 1006 MB. TROUGH FROM 30N143W
TO 24N150W TO 17N151W TO LOW.
.48 HOUR FORECAST LOW NEAR 12N150W 1006 MB. TROUGH FROM 30N148W
TO 21N150W TO 16N152W TO LOW.

.TROUGH 20N161W 16N163W MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH DISSIPATED.

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

.MONSOON TROUGH 14N140W 13N147W 08N155W...AND 08N165W 08N180W.
ISOLATED MODERATE TSTMS FROM 15N TO 03N W OF 171W...AND FROM 14N
TO 04N E OF 154W.

$$

.FORECASTER TROTTER. HONOLULU HI.