939
FZPS40 PHFO 140335
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC THU AUG 14 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 AUG 14 2025.
24 HOUR FORECAST VALID 0000 UTC AUG 15 2025.
48 HOUR FORECAST VALID 0000 UTC AUG 16 2025.

.WARNINGS.

...GALE WARNING...
.TROUGH 13S163E 05S163E MOVING SE 20 KT. ISOLATED MODERATE TSTMS
FROM 15S TO 05S W OF 180E.
.24 HOUR FORECAST TROUGH 21S170E 11S167E. WINDS 20 TO 25 KT
FROM 21S TO 14S W OF 172E.
.48 HOUR FORECAST NEW LOW NEAR 25S177E. TROUGH FROM LOW TO 19S176E
12S170E. WINDS 30 TO 35 KT S OF 22S BETWEEN 176W AND 176E. WINDS
20 TO 30 KT ELSEWHERE S OF 17S BETWEEN 170W AND 174E.

.SYNOPSIS AND FORECAST.

.FRONT 25S160W 20S166W...THENCE TROUGH 17S170W. FRONT MOVING E 20
KT AND TROUGH MOVING NE SLOWLY. WINDS 20 TO 30 KT S OF 21S
BETWEEN 156W AND 172W.
.24 HOUR FORECAST FRONT 25S152W 19S160W...THENCE TROUGH 12S170W.
WINDS 20 TO 30 KT S OF 22S BETWEEN 137W AND 155W.
.48 HOUR FORECAST FRONT 25S142W 19S149W...THENCE TROUGH 12S167W.
WINDS 20 TO 25 KT S OF 22S BETWEEN 131W AND 143W.

.FRONT WEAKENING 25S131W TO 21S138W MOVING E 15 KT.
.24 HOUR FORECAST FRONT WEAKENING 20S120W TO 27S128W. TROUGH
DISSIPATED.
.48 HOUR FORECAST FRONT DISSIPATED.

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

.SEAS 2.5 TO 3 M S OF A LINE FROM 25S130W TO 20S140W TO 21S172W
TO 25S173W.
.24 HOUR FORECAST SEAS 2.5 TO 4 M S OF 21S E OF 166W.
.48 HOUR FORECAST SEAS 2.5 TO 4 M S OF LINE 25S140W 20S153W
25S160W. SEAS 2.5 TO 3 M S OF A LINE FROM 25S174W 17S172E.

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

$$

.FORECASTER FOSTER. HONOLULU HI.