901
FZPS40 PHFO 031528
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SEP 03 2025.
24 HOUR FORECAST VALID 1200 UTC SEP 04 2025.
48 HOUR FORECAST VALID 1200 UTC SEP 05 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 06S167E 14S170E MOVING W 15 KT. ISOLATED MODERATE
TSTMS WITHIN 180 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 07S163E 18S167E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 05S174W 10S174W MOVING W 10 KT. ISOLATED MODERATE
TSTMS WITHIN 120 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 05S178W 11S178W.
.48 HOUR FORECAST TROUGH 04S172E 08S171E.

.WEAK FRONT 25S130W 20S147W MOVING NE SLOWLY.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH 21S143W 24S136W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.WINDS 20 TO 25 KT FROM 12S TO 18S BETWEEN 176W AND 175E.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 07S TO 17S
BETWEEN 177W AND 168E.
.48 HOUR FORECAST WINDS 20 TO 25 KT WITHIN 300 NM EITHER
SIDE OF LINE FROM 21S167W TO 08S165E.

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

.SEAS 4 TO 4.5 M S OF 21S BETWEEN 142W AND 154W. SEAS
2.5 TO 4 M ELSEWHERE S OF A LINE 25S139W 12S161W 11S176E
25S170E.
.24 HOUR FORECAST SEAS 2.5 TO 4 M ELSEWHERE S OF A LINE 25S127W
07S152W 07S174E 25S167E.
.48 HOUR FORECAST SEAS 2.5 TO 4 M S OF A LINE 16S120W 08S131W
23S134W 05S170E 25S167E.

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

$$

.FORECASTER THOMAS. HONOLULU HI.