487
FZPS40 PHFO 312247
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2330 UTC SUN AUG 31 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC AUG 31 2025.
24 HOUR FORECAST VALID 1800 UTC SEP 01 2025.
48 HOUR FORECAST VALID 1800 UTC SEP 02 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 25S175W 22S180W 21S169E MOVING E 35 KT.
.24 HOUR FORECAST TROUGH 25S155W 20S160W.
.48 HOUR FORECAST TROUGH 25S136W 20S146W 18S153W.

.TROUGH 25S135W 20S148W 15S158W MOVING E 25 KT.
.24 HOUR FORECAST TROUGH 25S125W 20S130W 18S140W.
.48 HOUR FORECAST TROUGH 25S120W 20S125W.

.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.

.SEAS 2.5 TO 3 M E OF 125W S OF 05S. SEAS 2.5 TO 4 M S
OF LINE 20S160E 25S180W.
.24 HOUR FORECAST SEAS 2.5 TO 4 M S OF LINE 25S165E
15S175E 25S160W.
.48 HOUR FORECAST SEAS 2.5 TO 4 M S OF LINE 10S175E
22S145W 25S120W.

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

.CONVERGENCE ZONE 11S151W 08S169W 08S178W. ISOLATED TSTMS
WITHIN 150 NM POINT 08S173W.

.ISOLATED MODERATE TSTMS WITHIN 150 NM OF LINE 07S160E
15S172E.

$$

.FORECASTER PECHACEK. HONOLULU HI.