398
FZPS40 PHFO 090336
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC THU OCT 09 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 OCT 09 2025.
24 HOUR FORECAST VALID 0000 UTC OCT 10 2025.
48 HOUR FORECAST VALID 0000 UTC OCT 11 2025.

.WARNINGS.

...GALE WARNING...
.FRONT 22S120W 18S124W 17S126W THENCE TROUGH 16S130W MOVING
NE 10 KT. SE WINDS 25 TO 35 KT S OF 23S E OF 122W. SE TO ESE WINDS
20 TO 30 KT ELSEWHERE S OF A LINE 23S120W 18S125W 15S146W.
.24 HOUR FORECAST FRONT 16S120W 13S124W THENCE TROUGH 13S138W. S
WINDS 25 TO 30 KT S OF 23S E OF 121W. SE TO E WINDS 20 TO 30 KT
ELSEWHERE S OF A LINE 16S120W 13S130W 14S145W.
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH 16S120W 12S125W 11S136W.
WINDS EASED TO 20 KT OR LESS.

.SYNOPSIS AND FORECAST.

.FRONT 25S158W 18S164W THENCE TROUGH 11S172W 09S176E 05S160E. FRONT
MOVING E 10 KT. TROUGH MOVING E SLOWLY S OF 12S AND MOVING W SLOWLY
N OF 10S. SE TO E WINDS 20 TO 25 KT S OF TROUGH W OF 170W. NUMEROUS
MODERATE TSTMS FROM 15S TO 08S BETWEEN 172W AND 180W. ISOLATED
MODERATE TSTMS ELSEWHERE WITHIN 90 NM OF FRONT...AND WITHIN 240 NM
N OF TROUGH W OF 180E...AND WITHIN 120 NM OF TROUGH BETWEEN 162W AND
170W.
.24 HOUR FORECAST FRONT 25S154W 21S157W THENCE TROUGH 12S170W
09S168E 04S160E. SE TO E WINDS 20 TO 25 KT S OF TROUGH W OF 166W.
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH 25S150W 20S155W...AND
SECOND TROUGH 17S172W 16S177W 08S168E 06S160E. SE WINDS 20 TO 25 KT
S OF A LINE 20S164W 12S170W 09S172E 08S160E.

.TROUGH 07S168W 11S167W 15S164W MOVING SW 10 KT. ISOLATED MODERATE
TSTMS WITHIN 210 NM E 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 3 TO 4 M S OF 18S AND E OF 135W. SEAS 2.5 TO 3 M ELSEWHERE S
OF A LINE 03S120W 25S155W. SEAS 2.5 TO 3 M S OF 09S BETWEEN 180E AND
168E.
.24 HOUR FORECAST SEAS 3 TO 4 M S OF 20S AND E OF 130W. SEAS 2.5
TO 3 M ELSEWHERE S 10S.
.48 HOUR FORECAST SEAS 2.5 TO 3 M S OF 10S E OF 138W... AND S OF 08S
BETWEEN 162W AND 172E.

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

$$

.FORECASTER M BALLARD. HONOLULU HI.