983
FZPN40 PHFO 151051
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC WED OCT 15 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 15 2025.
24 HOUR FORECAST VALID 0600 UTC OCT 16 2025.
48 HOUR FORECAST VALID 0600 UTC OCT 17 2025.

.WARNINGS.


.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 30N151W 27N152W 25N154W MOVING W 10 KT. ISOLATED MODERATE
TSTMS WITHIN 120 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 30N155W 28N157W 26N156W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 30N164W 27N166W 24N167W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH 30N168W 24N172W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 30N167W 26N171W 25N177W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH 30N170W 28N173W 25N174W.
.48 HOUR FORECAST TROUGH 30N176W 24N179E.

.TROUGH 12N158W 06N158W WITHIN ITCZ MOVING NW 10 KT. ISOLATED
MODERATE TSTMS WITHIN 150 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 15N162W 11N163W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 11N171E 07N170E 02N171E MOVING W 10 KT. SCATTERED MODERATE
TSTMS WITHIN 180 NM EITHER SIDE OF TROUGH.
.24 HOUR FORECAST TROUGH WEAKENED AND MOVED W OF AREA.

.TROUGH 09N163E 06N160E MOVING MOVING W 10 KT. SCATTERED MODERATE
TSTMS WITHIN 240 NM OF TROUGH.
.24 HOUR FORECAST TROUGH MOVED W OF AREA.

.FRONT 30N161E 29N160E MOVING E 15 KT.
.24 HOUR FORECAST FRONT 30N170E 28N166E 27N160E. SEAS 2.5 TO 3 M
N OF FRONT.
.48 HOUR FORECAST FRONT WEAKENED AND MOVED NEAR PARALLEL TO 30N.

.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.

.SEAS 2.5 TO 3 M BETWEEN TWO LINES FROM 30N160W 08N177W AND
30N175W 18N160E.
.24 HOUR FORECAST SEAS 2.5 TO 3 M N OF 18N E OF 150W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M N OF A LINE 29N168W 12N140W.

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

.ITCZ 11N140W 10N157W...AND FROM 10N162W 08N170W 11N177W 08N172E.
SCATTERED MODERATE TSTMS WITHIN 240 NM OF ITCZ.

.ISOLATED MODERATE TSTMS WITHIN 60 NM OF 25N155W...AND 20N167E.


$$

.FORECASTER BLOOD. HONOLULU HI.