505
FZPS40 PHFO 011053
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC MON SEP 01 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SEP 01 2025.
24 HOUR FORECAST VALID 0600 UTC SEP 02 2025.
48 HOUR FORECAST VALID 0600 UTC SEP 03 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 25S170W 20S168E MOVING E 35 KT.
.24 HOUR FORECAST TROUGH 25S151W 20S174E.
.48 HOUR FORECAST TROUGH 25S136W 20S146W 18S153W.

.FRONT 25S130W 23S133W THENCE TROUGH 20S143W 17S154W MOVING
E 30 KT.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH. TROUGH 21S120W
17S131W.
.48 HOUR FORECAST TROUGH 21S120W 19S126W.

.TROUGH 15S173E 09S160E MOVING S 10 KT. ISOLATED MODERATE
TSTSM WITHING 120 NM OF TROUGHE OF 169E.
.24 HOUR FORECAST TROUGH 17S172E 12S160E.
.48 HOUR FORECAST TROUGH 18S174E 15S170E.

.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.

.SEAS 2.5 TO 3 M E OF LINE 25S125W 04S138W. SEAS 2.5 TO 4 M
S OF LINE 19S160E 25S172W.
.24 HOUR FORECAST SEAS 2.5 TO 4 M S OF LINE 25S125E 20S165W
10S180E 25S165E. SEAS 2.5 TO 3 M E OF 127W FROM 12S TO 03S.
.48 HOUR FORECAST SEAS 2.5 TO 4 M S OF LINE 22S120W 10S160W
10S171E 25S167E.

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

.CONVERGENCE ZONE 10S150W 09S160W 10S170W 08S178E. ISOLATED TSTMS
WITHIN 150 NM OF CONVERGENCE ZONE W OF 175W.

$$

.FORECASTER M BALLARD. HONOLULU HI.