736
FZPN40 PHFO 171508
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC THU SEP 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SEP 17 2026.
24 HOUR FORECAST VALID 1200 UTC SEP 18 2026.
48 HOUR FORECAST VALID 1200 UTC SEP 19 2026.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 10N158W 1006 MB MOVING W 10 KT. TROUGH FROM 10N151W
TO LOW TO 07N164W MOVING W 10 KT. ISOLATED MODERATE TSTMS WITHIN
180 NM OF TROUGH.
.24 HOUR FORECAST WEAK LOW NEAR 10N159W. TROUGH FROM 12N151W TO LOW
TO 08N164W.
.48 HOUR FORECAST LOW DISSIPATED.

.TROUGH FROM 30N150W 26N152W 19N156W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH FROM 30N151W 19N159W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.48 HOUR FORECAST NEW LOW 14N140W 1008 MB. TROUGH FROM NEW LOW TO
09N147W.

.SEAS 2.5 M OR LOWER OVER FORECAST AREA.
.24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 15N TO 20N E OF 145W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M FROM 17N TO 19N BETWEEN 145W AND
142W.

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

$$

.FORECASTER EE. HONOLULU HI.