The High Seas Forecast for the South Pacific

High Seas Forecast Issued: 07/24/2025 01:03:31 AM UTC
                        
154
FZPS40 PHFO 231503
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC WED JUL 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JUL 23 2025.
24 HOUR FORECAST VALID 1200 UTC JUL 24 2025.
48 HOUR FORECAST VALID 1200 UTC JUL 25 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 25S150W 20S160W 16S167W THENCE TROUGH 10S179E 03S167E
MOVING SE 15 KT. WINDS 20 TO 30 KT S OF 23S BETWEEN 156W AND
143W. ISOLATED MODERATE TSTMS WITHIN 120 NM OF TROUGH.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH 25S146W 22S151W
14S169W. ASSOCIATED WINDS MOVED S OF AREA.
.48 HOUR FORECAST TROUGH 25S141W 18S153W THENCE 10S175W.

.TROUGH 25S158W 20S170W 16S177E MOVING SE 20 KT. ISOLATED
MODERATE TSTMS S OF 22S BETWEEN 165W AND 155W.
.24 HOUR FORECAST TROUGH MERGED WITH FRONT AS DESCRIBED ABOVE.

.48 HOUR FORECAST NEW FRONT 25S171E 22S171E.

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

.SEAS 2.5 TO 3 M S OF LINE 25S175W 18S171E 25S165E.
.24 HOUR FORECAST SEAS 2.5 TO 3 M S OF LINE 25S170W 15S177E
16S169E 25S164E.
.48 HOUR FORECAST SEAS 2.5 TO 3 M S OF LINE 25S145W 22S160W
25S177W

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


$$

.FORECASTER PIERCE. HONOLULU HI.