747
FZPN40 PHFO 170914
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC MON NOV 17 2025

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 160E

SYNOPSIS VALID 0600 UTC NOV 17 2025.
24 HOUR FORECAST VALID 0600 UTC NOV 18 2025.
48 HOUR FORECAST VALID 0600 UTC NOV 19 2025.

.WARNINGS.

...GALE WARNING...
.FRONT 30N173W 23N170E THENCE TROUGH 21N160E MOVING E 25 KT. WINDS
20 TO 25 KT AND SEAS 2.5 TO 3 M N OF FRONT. ISOLATED MODERATE TSTMS
WITHIN 30 NM OF TROUGH.
.24 HOUR FORECAST FRONT 30N163W 26N170W 24N180E THENCE TROUGH 22N170E
21N160E. WINDS 30 TO 35 KT WITHIN 120 NM NW OF FRONT. WINDS 20 TO
30 KT ELSEWHERE AND SEAS 2.5 TO 4 M N OF FRONT.
.48 HOUR FORECAST FRONT 30N150W 24N160W 20N170E THENCE TROUGH 22N175E.
WINDS 20 TO 30 KT N OF FRONT AND TROUGH. SEAS 4 TO 5 M N OF 25N
BETWEEN 172E AND 165W. SEAS 2.5 TO 4 M N OF A LINE 30N158W 20N177W
20N160E.

.SYNOPSIS AND FORECAST.

.TROUGH 12N177E 04N174E MOVING W 10 KT.
.24 HOUR FORECAST TROUGH 12N172E 05N171E. WINDS 20 TO 25 KT FROM 10N
TO 13N BETWEEN 170E AND 175E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.24 HOUR FORECAST NEW TROUGH 25N154W 20N155W.
.48 HOUR FORECAST TROUGH MERGED WITH FRONT DESCRIBED IN WARNING
SECTION.

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

.ITCZ 08N140W 09N160W 08N173W. ISOLATED MODERATE TSTMS WITHIN 90
NM N OF ITCZ.

.ISOLATED MODERATE TSTMS FROM 05N TO 08 BETWEEN 167E AND 170E...
AND FROM 06N TO 10N BETWEEN 180W AND 175W.

$$

.FORECASTER SHIGESATO. HONOLULU HI.