543
FZPS40 PHFO 070956
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC TUE OCT 07 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 OCT 07 2025.
24 HOUR FORECAST VALID 0600 UTC OCT 08 2025.
48 HOUR FORECAST VALID 0600 UTC OCT 09 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 25S128W 22S140W MOVING E 10 KT. WINDS 20 TO 25 KT S OF
FRONT.
.24 HOUR FORECAST FRONT 25S121W 21S130W THENCE TROUGH 17S140W.
WINDS 20 TO 25 KT S OF FRONT AND TROUGH.
.48 HOUR FORECAST FRONT 20S120W 16S130W THENCE TROUGH 14S140W.
WINDS 20 TO 30 KT S OF FRONT AND TROUGH.

.FRONT 25S165W 17S168W THENCE TROUGH 08S180W 03S171E. FRONT MOVING
E 10 KT. TROUGH MOVING E 15 KT S OF 10S AND MOVING W SLOWLY N OF
10S. WINDS 20 TO 25 KT FROM 20S TO TROUGH BETWEEN 178E AND 173W...
AND S OF 20S BETWEEN FRONT AND 160W. NUMEROUS STRONG TSTMS FROM
10S TO TROUGH BETWEEN 173E AND 179W... AND WITHIN 90 NM E OF TROUGH
AND FRONT. SCATTERED MODERATE TSTMS ELSEWHERE WITHIN 180 NM OF
FRONT AND TROUGH.
.24 HOUR FORECAST FRONT 25S160W 17S166W THENCE TROUGH 11S180W
05S168E. WINDS 20 TO 25 KT FROM 20S TO TROUGH.
.48 HOUR FORECAST FRONT 25S156W 15S170W THENCE TROUGH 10S180W
08S168E 04S162E.

.TROUGH 12S155W 05S168W MOVING SW 10 KT. ISOLATED MODERATE TSTMS
WITHIN 120 NM OF TROUGH S OF 10S.
.24 HOUR FORECAST TROUGH MERGED WITH FRONT AND TROUGH DESCRIBED
IMMEDIATELY ABOVE.

.WINDS 20 TO 25 KT S OF LINE 25S158W 17S156W 25S132W.
.24 HOUR FORECAST WINDS 20 TO 25 KT S OF LINE 25S149W 18S151W 17S140W
25S125W.
.48 HOUR FORECAST WINDS 20 TO 30 KT S OF LINE 16S E OF 148W. WINDS
20 TO 25 KT FROM 22S TO 10S BETWEEN 163E AND 170W.

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

.SEAS 2.5 TO 3 M S OF A LINE 13S170E 20S170W... AND S OF A LINE
FROM 10S160W 10S133W 00S120W.
.24 HOUR FORECAST SEAS 2.5 TO 4 M S OF A LINE 10S160W 10S130W 06S120W.
SEAS 2.5 TO 3 M S OF A LINE 10S170E 10S180W 25S160W.
.48 HOUR FORECAST SEAS 4 TO 5 M S OF 17S E OF 140W. SEAS 2.5 TO 4 M
ELSEWHERE S OF 10S E OF 160W. SEAS 2.5 TO 3 M S OF 10S W OF 170W.

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

.SCATTERED MODERATE TSTMS FROM 18S TO 14S BETWEEN 162W AND 158W.

$$

.FORECASTER SHIGESATO. HONOLULU HI.