589
FZPS40 PHFO 271504
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC WED AUG 27 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 AUG 27 2025.
24 HOUR FORECAST VALID 1200 UTC AUG 28 2025.
48 HOUR FORECAST VALID 1200 UTC AUG 29 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 25S174W 15S176E THENCE TROUGH 10S170E 08S160E MOVING SE
SLOWLY. WINDS 20 TO 25 KT WITHIN 150 NM OF FRONT S OF 20S.
SCATTERED MODERATE TSTMS FROM 21S TO 11S BETWEEN 179E AND 170W.
.24 HOUR FORECAST FRONT 25S172W 17S177W THENCE TROUGH 11S173E 09S160E.
WINDS 20 TO 25 KT S OF 22S BETWEEN FRONT AND 168W.
.48 HOUR FORECAST FRONT 25S167W 16S180W THENCE TROUGH 08S170E. WINDS
EASED TO 20 KT OR LESS.

.FRONT 25S134W 22S140W 16S151W MOVING E 20 KT. WINDS 20 TO 25 KT S
OF FRONT.
.24 HOUR FORECAST FRONT 25S123W 19S133W 17S146W. WINDS 20 TO 25 KT
S OF FRONT.
.48 HOUR FORECAST FRONT 21S120W 19S126W 17S145W. WINDS EASED TO 20
KT OR LESS.

.48 HOUR FORECAST NEW FRONT 25S167E 22S160E.

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

.SEAS 3 TO 4 M S OF 15S E OF 130W. SEAS 2.5 TO 3.5 M ELSEWHERE E OF
175W...AND S OF 20S W OF 175W.
.24 HOUR FORECAST SEAS 3 TO 4 M S OF 21S BETWEEN 130W AND 155W. SEAS
2.5 TO 3.5 M ELSEWHERE E OF A LINE 25S175E 00S167W.
.48 HOUR FORECAST SEAS 3.5 TO 5 M S OF 20S E OF 137W. SEAS 2.5 TO 3.5
M ELSEWHERE E OF A LINE 25S155W 00S130W.

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

$$

.FORECASTER SHIGESATO. HONOLULU HI.