509
FZPS40 PHFO 111511
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC SAT OCT 11 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 OCT 11 2025.
24 HOUR FORECAST VALID 1200 UTC OCT 12 2025.
48 HOUR FORECAST VALID 1200 UTC OCT 13 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 25S147W 20S154W MOVING SE SLOWLY.
.24 HOUR FORECAST FRONT MOVED S OF AREA.

.TROUGH 16S172W 13S170E 11S160E NEARLY STATIONARY. WINDS 20 TO 25
KT FROM 15S TO 09S BETWEEN 163E AND 170E...AND FROM 18S TO 12S
BETWEEN 179E AND 169W. SCATTERED MODERATE TO LOCALLY STRONG TSTMS
FROM 16S TO 03S W OF 172E...AND WITHIN 240 NM E OF 172E.
.24 HOUR FORECAST TROUGH 12S168W 11S177E 09S160E. WINDS 20 TO 25
KT FROM 19S TO 14S BETWEEN 175E AND 176W.
.48 HOUR FORECAST TROUGH 11S163W 11S172E 09S160E. WINDS 20 TO 25
KT FROM 16S TO 14S BETWEEN 177E AND 179E.

.TROUGH 10S161W 10S172W 10S171W 08S179W MOVING WSW SLOWLY.
SCATTERED MODERATE TSTMS WITHIN 180 NM OF TROUGH.
.24 HOUR FORECAST MERGED WITH TROUGH DESCRIBED IMMEDIATELY ABOVE.

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

.SEAS 2.5 TO 3 M S OF LINE 12S160E 08S166E 10S163W 00S157W
01S153W 14S161W 16S158W 10S161W 20S155W 25S146W...EXCEPT S OF 13S
W OF 172E.
.24 HOUR FORECAST SEAS 2.5 TO 3 M S OF LINE 25S168W 22S173E
10S178E 15S159W 25S138W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M S OF 22S BETWEEN 142W AND 131W.

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


$$

.FORECASTER PIERCE. HONOLULU HI.