403
FZPS40 PHFO 030303
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC WED SEP 03 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E

SYNOPSIS VALID 0000 UTC SEP 03 2025.
24 HOUR FORECAST VALID 0000 UTC SEP 04 2025.
48 HOUR FORECAST VALID 0000 UTC SEP 05 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 10S172E 05S172E MOVING W 15 KT. SCATTERED MODERATE
TSTMS FROM 14S TO 07S BETWEEN 178E AND 167E.
.24 HOUR FORECAST TROUGH 12S166E 09S165E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 09S172W 04S171W MOVING W 15 KT. ISOLATED MODERATE
TSTMS WITHIN 180 NM OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 23S120W 19S138W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH DISSIPATED.

.48 HOUR FORECAST NEW FRONT 25S147W 21S171W.

.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 22S TO 05S BETWEEN
172W AND 162E.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 23S TO 08S W OF 160W.

.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.

.SEAS 4 TO 4.5 M S OF 21S BETWEEN 151W AND 168W. SEAS
2.5 TO 4 M ELSEWHERE S OF A LINE 23S126W 23S150W 11S174E
25S168E.
.24 HOUR FORECAST SEAS 4 TO 4.5 M S OF A LINE FROM 25S136W
19S147W 25S151W. SEAS 2.5 TO 4 M ELSEWHERE S OF A LINE 25S134W
10S162W 11S174E 25S169W.
.48 HOUR FORECAST SEAS 2.5 TO 4 M S OF A LINE 24S120W 05S153W
13S171W 07S171E 10S167E 25S166E.

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

.ISOLATED MODERATE TSTMS WITHIN 150 NM OF LINE 09S160E
21S174E.

$$

.FORECASTER FOSTER. HONOLULU HI.