201
FZPN40 PHFO 161505
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC WED SEP 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SEP 16 2026.
24 HOUR FORECAST VALID 1200 UTC SEP 17 2026.
48 HOUR FORECAST VALID 1200 UTC SEP 18 2026.

.WARNINGS.


.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 11N153W 1007 MB MOVING W 10 KT.
.24 HOUR FORECAST LOW NEAR 11N157W.
.48 HOUR FORECAST LOW WEAKENED TO TROUGH FROM 12N158W TO 09N160W.

.TROUGH FROM 24N144W TO 20N147W TO 16N149W MOVING W 15 KT. WINDS
20 TO 25 KT FROM 20N TO 24N BETWEEN 145W AND 149W. SEAS 2.5 TO 3 M
FROM 20N TO 25 N E OF 149W. ISOLATED MODERATE TSTMS WITHIN 90 NM
OF TROUGH N OF 21N.
.24 HOUR FORECAST TROUGH FROM 21N153W TO 18N154W. WINDS 20 TO 25
KT W OF TROUGH TO 140W. SEAS 2.5 TO 3 M BETWEEN TWO LINE FROM
15N140W TO 22N154W AND 25N140W TO 25N153W.
.48 HOUR FORECAST TROUGH FROM 21N158W TO 19N160W. WINDS LOWERED
TO 20 KT OR LESS. SEAS 2.5 TO 3 M FROM 15N TO 25 N E OF 153W.

.LOW NEAR 28N180W 1008 MB MOVING SLOWLY WSW. FRONT FROM 30N176W
TO 27N175W TO 21N180W MOVING W SLOWLY. TROUGH FROM 30N175W TO
23N174W TO 18N177W MOVING W SLOWLY. WINDS 20 TO 25 KT N OF 27N
BETWEEN 172W AND 176W. SEAS 2.5 TO 4 M W OF LINE FROM 30N171W TO
25N180W. SCATTERED MODERATE TSTMS WITHIN 90 NM EITHER SIDE OF
FRONT N OF 24N AND WITHIN 60 NM EITHER SIDE OF TROUGH.
.24 HOUR FORECAST LOW...FRONT AND TROUGH MOVED W OF AREA. WINDS
LOWERING TO 20 KT OR LESS WITH SEAS SUBSIDING TO 2.5 M OR LOWER.

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

.SCATTERED MODERATE TSTMS WITHIN 120 NM OF 06N141W...AND W OF A
LINE FROM 04N180W TO 13N171W.

.MONSOON TROUGH FROM 10N140W TO 09N161W. ISOLATED MODERATE TSTMS
WITHIN 90 NM S OF TROUGH BETWEEN 152W AND 156W.


$$

.FORECASTER BLOOD. HONOLULU HI.