857
FZPN40 PHFO 131510
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC MON OCT 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC OCT 13 2025.
24 HOUR FORECAST VALID 1200 UTC OCT 14 2025.
48 HOUR FORECAST VALID 1200 UTC OCT 15 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 30N153W 23N159W MOVING NW SLOWLY. NUMEROUS STRONG TSTMS N
OF 25N BETWEEN 158W AND 149W.
.24 HOUR FORECAST TROUGH 30N156W 24N160W.
.48 HOUR FORECAST TROUGH 30N154W 26N155W.

.TROUGH 14N166W 07N164W MOVING W SLOWLY. WINDS 20 TO 25 KT WITHIN
60 NM OF TROUGH N OF 10N. ISOLATED MODERATE TSTMS WITHIN 60 NM OF
TROUGH.
.24 HOUR FORECAST TROUGH 13N170W 07N170W.
.48 HOUR FORECAST TROUGH 12N176W 08N174W.

.TROUGH 08N163E 02N170E MOVING W SLOWLY. ISOLATED MODERATE TSTMS
WITHIN 90 NM OF TROUGH S OF 06S.
.24 HOUR FORECAST TROUGH 09N160E 02N164E.
.48 HOUR FORECAST TROUGH MOVED W OF AREA.

.TROUGH 30N176W 27N174E MOVING NE 10 KT. ISOLATED MODERATE TSTMS N
OF 28N BETWEEN TROUGH AND 174W.
.24 HOUR FORECAST TROUGH 30N171W 28N180W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.48 HOUR FORECAST NEW FRONT 30N165E 28N160E.

.48 HOUR FORECAST NEW TROUGH 15N156W 10N160W.

.48 HOUR FORECAST NEW TROUGH 10N168E 05N160E.

.WINDS 20 KT OR LESS OVER ENTIRE AREA.

.SEAS 2.5 TO 3 M N OF A LINE 22N160E 10N170E 10N180E 30N160W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M N OF 10N BETWEEN 165E AND 165W.
.48 HOUR FORECAST SEAS 2.5 TO 4 M N OF A LINE 30N163E 28N160E...
AND WITHIN 240 NM OF A LINE 30N167W 20N180W 15N170E.

.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.

.ITCZ 09N140W 09N150W 10N161W...AND 10N168W 07N178W. ISOLATED
MODERATE TSTMS S OF 10S BETWEEN 180W AND 170W.

.ISOLATED MODERATE TSTMS FROM 10N TO 18N BETWEEN 177E AND 177W.

$$

.FORECASTER SHIGESATO. HONOLULU HI.