289
FZPN40 PHFO 172200
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC SEP 17 2026.
24 HOUR FORECAST VALID 1800 UTC SEP 18 2026.
48 HOUR FORECAST VALID 1800 UTC SEP 19 2026.

.WARNINGS.


.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 10N158W 1008 MB MOVING W 1SLOWLY. SCATTERED MODERATE
TSTMS WITHIN 210 NM E AND NE OF LOW.
.24 HOUR FORECAST LOW NEAR 10N160W 1010 MB.
.48 HOUR FORECAST LOW DISSIPATED.

.TROUGH FROM 30N151W 26N153W 15N158W MOVING W 10 KT. ISOLATED
MODERATE WITHIN 150 NM OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 30N151W 23N159W 15N160W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.48 HOUR FORECAST NEW LOW 14N140W 1008 MB. TROUGH FROM NEW LOW TO
25N140W.

.ENE WINDS 20 TO 25 KT FROM 15N TO 23N E OF 144W.
.24 HOUR FORECAST ENE WINDS 20 TO 25 KT FROM 16N TO 23N E OF 146W.
.48 HOUR FORECAST ENE WINDS 20 TO 25 KT FROM 15N TO 23N E OF 149W.

.SEAS 2.5 TO 3 M FROM 12N TO 23N E OF 150W...AND FROM 21N TO 29N W
OF 177W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 13N TO 24N E OF 151W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M FROM 14N TO 23N BETWEEN 154W AND
142W.

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

.MONSOON TROUGH 07N140W 07N141W 11N152W 10N157W 09N159W 06N164W
06N168W 10N173W. ISOLATED MODERATE TSTMS WITHIN 180 NM N OF TROUGH
E OF 170W...AND FROM 04N TO 14N W OF 170W.


$$

.FORECASTER TSAMOUS. HONOLULU HI.