990
FZPS40 PHFO 081519
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC WED OCT 08 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 08 2025.
24 HOUR FORECAST VALID 1200 UTC OCT 09 2025.
48 HOUR FORECAST VALID 1200 UTC OCT 10 2025.

.WARNINGS.

...GALE WARNING...
.FRONT 25S121W 19S130W 18S139W MOVING NE 10 KT. WINDS 20 TO 25 KT
S OF A LINE 18S147W 20S130W 25S121W.
.24 HOUR FORECAST FRONT 18S120W 15S130W THENCE TROUGH 14S141W.
WINDS 30 TO 35 KT S OF 23S E OF 122W. WINDS 20 TO 30 KT ELSEWHERE
S OF A LINE 14S148W 15S130W 19S120W.
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH 16S120W 12S130W 12S140W.
WINDS 20 TO 25 KT S OF TROUGH.

.SYNOPSIS AND FORECAST.

.TROUGH 23S121W 20S123W MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH MERGED WITH FRONT DESCRIBED IN WARNINGS
SECTION.

.FRONT 25S160W 18S164W THENCE TROUGH 12S170W 08S180E 05S170E. FRONT
MOVING SE 10 KT. TROUGH MOVING E SLOWLY S OF 10S AND MOVING W 10
KT OF 10S. WINDS 20 TO 25 KT FROM 21S TO 10S W OF 173W. NUMEROUS
STRONG TSTMS FROM 15S TO 10S BETWEEN 179E AND 170W. ISOLATED
MODERATE TSTMS ELSEWHERE FROM 18S TO 07S BETWEEN 178E AND 162W.
.24 HOUR FORECAST FRONT 25S156W 20S163W THENCE TROUGH 14S170W 10S170E
06S163E. WINDS 20 TO 25 KT FROM 22S TO 10S BETWEEN 164E AND 168W.
.48 HOUR FORECAST FRONT 25S151W 20S160W THENCE TROUGH 12S180W 08S170E
06S160E. WINDS 20 TO 25 KT S OF 10S W OF 168W.

.TROUGH 07S168W 10S166W 14S164W MOVING SW 10 KT. ISOLATED MODERATE TSTMS
WITHIN 120 NM OF TROUGH.
.24 HOUR FORECAST TROUGH MERGED WITH FRONT AND TROUGH DESCRIBED IMMEDIATELY
ABOVE.

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

.SEAS 2.5 TO 4 M S OF 15S E OF 160W. SEAS 2.5 TO 3 M FROM 20S TO 12S
BETWEEN 170E AND 170W.
.24 HOUR FORECAST SEAS 4 TO 5 M S OF 17S E OF 137W. SEAS 2.5 TO 4 M
ELSEWHERE S OF 10S E OF 160W. SEAS 2.5 TO 3 M S OF 10S BETWEEN 166E
AND 173W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M S OF 10S E OF 150W... AND SW OF A
LINE FROM 10S160E 10S180E 20S165W.

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

.ISOLATED MODERATE TSTMS N OF 10S W OF 171E.

$$

.FORECASTER SHIGESATO. HONOLULU HI.