639
FZPS40 PHFO 170256
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC THU JUL 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 17 2025.
24 HOUR FORECAST VALID 0000 UTC JUL 18 2025.
48 HOUR FORECAST VALID 0000 UTC JUL 19 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 25S172E 23S165E MOVING E 10 KT.
.24 HOUR FORECAST FRONT 25S179W 23S174E.
.48 HOUR FORECAST FRONT 25S167W 19S172W.

.FRONT 23S120W 18S135W 17S145W MOVING E SLOWLY.
.24 HOUR FORECAST FRONT 23S120W 18S135W THENCE TROUGH 13S157W.
.48 HOUR FORECAST FRONT 23S120W 18S133W THENCE TROUGH 15S153W.

.TROUGH 17S162W 08S176W 05S167E MOVING SW SLOWLY. ISOLATED
MODERATE TSTMS WITHIN 180 NM OF TROUGH N OF 13S.
.24 HOUR FORECAST TROUGH 17S164W 09S179W 06S166E.
.48 HOUR FORECAST TROUGH 17S170W 12S175W 06S164E.

.24 HOUR FORECAST NEW FRONT 25S146W 23S156W.
.48 HOUR FORECAST FRONT 25S132W 23S138W.

.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.

.24 HOUR FORECAST SEAS 2.5 TO 3 M S OF 23S BETWEEN 168E AND
178E...AND S OF 20S E OF 130W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M S OF 22S BETWEEN 179E AND 173W...
AND FROM 13S TO 03S E OF 134W.

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

.SCATTERED MODERATE TSTMS FROM 16S TO 11S W OF 165E.

$$

.FORECASTER TROTTER. HONOLULU HI.