607
FZPN40 PHFO 131004
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC OCT 13 2025.
24 HOUR FORECAST VALID 0600 UTC OCT 14 2025.
48 HOUR FORECAST VALID 0600 UTC OCT 15 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 30N153W 26N158W MOVING NW SLOWLY. SCATTERED MODERATE TSTMS
WITHIN 120 NM OF TROUGH. ISOLATED MODERATE TSTMS ELSEWHERE N OF
26N BETWEEN TROUGH AND 147W.
.24 HOUR FORECAST TROUGH 30N156W 24N158W.
.48 HOUR FORECAST TROUGH 30N154W 24N153W.

.TROUGH 15N165W 08N164W MOVING W SLOWLY. WINDS 20 TO 25 KT WITHIN
60 NM OF TROUGH N OF 10N. ISOLATED MODERATE TSTMS WITHIN 120 NM OF
TROUGH.
.24 HOUR FORECAST TROUGH 13N170W 07N168W.
.48 HOUR FORECAST TROUGH 12N173W 08N176W.

.TROUGH 09N165E 03N170E MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH 09N160E 05N166E.
.48 HOUR FORECAST TROUGH MOVED W OF AREA.

.TROUGH 30N180E 28N172E MOVING NE 10 KT.
.24 HOUR FORECAST TROUGH 30N171W 28N180W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 30N160W 26N165W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH DISSIPATED.

.48 HOUR FORECAST NEW FRONT 30N163E 29N160E.

.48 HOUR FORECAST NEW TROUGH 15N156W 10N160W.

.48 HOUR FORECAST NEW TROUGH 10N170E 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 08N140W 07N151W 10N160W...AND 10N168W 07N174W. ISOLATED MODERATE
TSTMS WITHIN 150 NM OF ITCZ.

.ISOLATED MODERATE TSTMS FROM 04N TO 08N BETWEEN 174E AND 177W... AND
FROM 10N TO 20N W OF 163E... AND N OF 28N BETWEEN 164E AND 168E...
AND FROM 10N TO 15N BETWEEN 180W AND 175W.

$$

.FORECASTER SHIGESATO. HONOLULU HI.