The High Seas Forecast for the South Pacific

High Seas Forecast Issued: 09/30/2025 01:21:50 AM UTC
                        
532
FZPS40 PHFO 291521
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC MON SEP 29 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 29 2025.
24 HOUR FORECAST VALID 1200 UTC SEP 30 2025.
48 HOUR FORECAST VALID 1200 UTC OCT 01 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 23S120W 16S138W MOVING E 10 KT S OF 19S NEARLY STATIONARY
ELSEWHERE.
.24 HOUR FORECAST FRONT 21S120W 18S130W.
.48 HOUR FORECAST FRONT DISSIPATED.

.FRONT 25S150W 20S150W 15S153W THENCE TROUGH 10S165W 09S175W
MOVING S AND E SLOWLY. WINDS 20 TO 25 KT S OF 21S BETWEEN 137W AND
152W. ISOLATED TSTMS WITHIN 210 NM E OF FRONT AND TROUGH.
.24 HOUR FORECAST FRONT 25S148W 19S150W THENCE TROUGH 12S161W
09S168W.
.48 HOUR FORECAST FRONT 25S145W 19S148W THENCE TROUGH 13S157W.

.24 HOUR FORECAST WINDS S OF 22S BETWEEN 141W AND 145W.
.48 HOUR FORECAST WINDS EASED TO 20 KT OR BELOW.

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

.SEAS 2.5 TO 4 M S OF 19S E OF 155W. SEAS 2.5 TO 3 M S OF 22S
BETWEEN 164W AND 172W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M S OF A LINE FROM 21S120W
18S135W 22S160W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M S OF 15S E OF 130W.

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

.SCATTERED MODERATE TSTMS WITHIN 120 NM OF A LINE 10S173W 12S172E
16S167E...FROM 10S TO 06S W OF 167E...AND WITHIN 60 NM OF 03S175E.


$$

.FORECASTER BLOOD. HONOLULU HI.