617
FZPS40 PHFO 160327
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC WED JUL 16 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JUL 16 2025.
24 HOUR FORECAST VALID 0000 UTC JUL 17 2025.
48 HOUR FORECAST VALID 0000 UTC JUL 18 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 25S123W 17S136W 14S151W MOVING E SLOWLY S OF 17S AND
NEARLY STATIONARY ELSEWHERE.
.24 HOUR FORECAST FRONT 24S120W 20S128W 16S144W.
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH AND MERGES WITH TROUGH
DESCRIBED IMMEDIATELY BELOW.

.TROUGH 21S159W 14S165W 04S174E MOVING SW SLOWLY. ISOLATED
MODERATE TSTMS FROM 11S TO 05S BETWEEN 168E AND 178E.
.24 HOUR FORECAST TROUGH 25S155W 12S166W 06S179W.
.48 HOUR FORECAST TROUGH 23S120W 17S141W 12S155W 10S163W 09S178W
04S167E.

.FRONT 25S165W 19S172W MOVING SE 15 KT.
.24 HOUR FORECAST FRONT MOVED S OF AREA.

.TROUGH 13S162E 11S160E NEARLY STATIONARY. ISOLATED MODERATE
TSTMS 14S TO 09S W OF 165E.
.24 HOUR FORECAST TROUGH 11S168E 10S160E.
.48 HOUR FORECAST TROUGH 14S165E 12S160E.

.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.

.SEAS 2.5 TO 4.0 M S OF LINE 25S179W 17S171E 07S175E 11S179E
18S177E 18S178W 15S174W 16S171W 25S178W. SEAS 2.5 TO 3 M N OF 09S
E OF 144W.
.24 HOUR FORECAST SEAS LOWERED TO 2.5 M OR LOWER.
.48 HOUR FORECAST SEAS 2.5 TO 3 M S OF 22S BETWEEN 168E AND 179E.

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

$$

.FORECASTER TROTTER. HONOLULU HI.