473
FZPS40 PHFO 230303
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC SAT AUG 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 23 2025.
24 HOUR FORECAST VALID 0000 UTC AUG 24 2025.
48 HOUR FORECAST VALID 0000 UTC AUG 25 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 25S131W 23S132W 17S134W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH 25S130W 19S133W.
.48 HOUR FORECAST TROUGH 25S125W 18S131W.

.TROUGH 25S155W 21S166W 08S172E 07S160E MOVING W 15 KT S OF
21S...AND NEARLY STATIONARY ELSEWHERE. WINDS MAINLY 20 TO 25 KT
S OF TROUGH W OF 170W. SCATTERED MODERATE TSTMS WITHIN 180 NM
OF TROUGH W OF 180E.
.24 HOUR FORECAST TROUGH 25S167W 13S180E 06S160E. WINDS MAINLY
20 TO 25 KT S OF 12S BETWEEN 140W AND 167W...AND BETWEEN TROUGH
AND 20S W OF 180E.
.48 HOUR FORECAST TROUGH 25S169W 18S172W. WINDS MAINLY 20 TO
25 KT S OF 12S BETWEEN 140W AND 164W.

.24 HOUR FORECAST NEW FRONT NEAR 25S160E. WINDS 20 TO 25 KT S OF
20S W OF 171E.
.48 HOUR FORECAST FRONT 25S169E 18S165E 15S160E. WINDS 20 TO
30 KT S OF 20S BETWEEN FRONT AND 180E.

.48 HOUR FORECAST NEW TROUGH 15S167E 05S160E.

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

.SEAS 2.5 TO 4.0 M S OF LINE 25S157W 05S175E 04S160E. SEAS 2.5 TO
3.0 M E OF LINE 25S125W 08S162W 02S120W.
.24 HOUR FORECAST SEAS 2.5 TO 4.0 M S OF LINE 25S140W 07S153W
05S160E. SEAS 2.5 TO 3.0 M E OF LINE 22S120W 12S135W 02S120W.
.48 HOUR FORECAST SEAS MAINLY 2.5 TO 4.0 M S OF 02S E OF 175W.
SEAS 2.5 TO 3.0 M S OF LINE 25S175W 14S175E 22S160E.

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

$$

.FORECASTER AHUE. HONOLULU HI.