598
FZPS40 PHFO 291534
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC TUE JUL 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JUL 29 2025.
24 HOUR FORECAST VALID 1200 UTC JUL 30 2025.
48 HOUR FORECAST VALID 1200 UTC JUL 31 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 25S134W 20S140W THENCE TROUGH 15S145W 05S149W. FRONT
MOVING E SLOWLY AND TROUGH MOVING W 10 KT.
.24 HOUR FORECAST FRONT 25S130W 18S141W THENCE TROUGH 15S147W
09S152W 04S154W.
.48 HOUR FORECAST FRONT 25S128W 16S137W. TROUGH DISSIPATED. WINDS
20 TO 30 KT S OF 20S BETWEEN 139W AND 123W.

.FRONT 25S176E 17S175E THENCE TROUGH 08S171E 03S165E. FRONT AND
TROUGH MOVING E 20 KT. WINDS 20 TO 30 KT S OF LINE 25S177E 19S176E
14S167W 18S151W 20S164W 25S167W. ISOLATED MODERATE TSTMS FROM 17S
TO 11S BETWEEN 178E AND 166W.
.24 HOUR FORECAST FRONT 25S175W 17S177W 13S179W THENCE TROUGH
08S177E 04S170E. WINDS 20 TO 30 KT S OF LINE 25S176W 18S174W
14S165W 18S147W 25S158W.
.48 HOUR FORECAST NEW LOW NEAR 22S171W 1012 MB. COLD FRONT FROM
LOW TO 18S174W. WARM FRONT FROM LOW TO 20S162W. DETACHED TROUGH
12S172W 03S177E. WINDS 20 TO 30 KT S OF 18S BETWEEN 172W AND 158W.

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

.SEAS 4 TO 5 M S OF LINE 25S176E 20S178E 14S172W 16S153W 25S176W.
SEAS 2.5 TO 4 M ELSEWHERE S OF LINE 25S169E 19S176E 18S178W
10S179W 04S168W 09S151W 20S138W 25S134W.
.24 HOUR FORECAST SEAS 4 TO 5 M S OF LINE 25S177W 20S175W 16S163W
25S168W. SEAS 2.5 TO 4 M ELSEWHERE S OF LINE 25S173E 14S167W
18S146W 25S126W.
.48 HOUR FORECAST SEAS 4 TO 5 M S OF 19S BETWEEN 173W AND 124W.
SEAS 2.5 TO 4 M ELSEWHERE S OF LINE 25S177E 13S156W 17S142W
23S120W.

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

.ISOLATED MODERATE TSTMS N OF 06S W OF 164E.

$$

.FORECASTER TROTTER. HONOLULU HI.