121
FZPS40 PHFO 040931
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC FRI APR 04 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 APR 04 2025.
24 HOUR FORECAST VALID 0600 UTC APR 05 2025.
48 HOUR FORECAST VALID 0600 UTC APR 06 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 24S162W 1009 MB MOVING SE 15 KT. FRONT 25S159W TO LOW TO
23S170W 23S173W. SE WINDS 20 TO 25 KT S OF FRONT E OF 168W.
.24 HOUR FORECAST LOW MOVED S OF AREA. WEAK FRONT 25S158W 21S163W
20S172W. WINDS DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST FRONT DISSIPATED.

.TROUGH 25S155W 20S160W 18S166W 18S173W NEARLY STATIONARY S OF
20S AND MOVING N SLOWLY N OF 20S. ISOLATED MODERATE TSTMS WITHIN
60 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 25S156W 20S158W 14S167W 14S175W 11S180W
11S170E 09S160E.
.48 HOUR FORECAST TROUGH 25S156W 19S159W 15S163W 19S171W 17S176E
15S164E 10S160E.

.TROUGH 11S176W 08S172E 10S166E 10S162E 09S160E MOVING S SLOWLY.
SCATTERED MODERATE TSTMS FROM 04S TO 12S BETWEEN 168E AND 167W.
ISOLATED MODERATE TSTMS ELSEWHERE N OF 18S W OF 180W.
.24 HOUR FORECAST TROUGH MERGED WITH TROUGH MENTIONED DIRECTLY
ABOVE.

.TROUGH 06S149W 08S158W 07S166W MOVING W 15 KT. ISOLATED TO
SCATTERED MODERATE TSTMS WITHIN 180 NM S AND 90 NM N OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 19S140W 16S140W 13S139W MOVING W 10 KT. SCATTERED MODERATE
TSTMS WITHIN 90 NM E AND 60 NM W OF TROUGH. ISOLATED MODERATE
TSTMS ELSEWHERE S OF 10S BETWEEN 141W AND 132W.
.24 HOUR FORECAST TROUGH DISSIPATED.

.24 HOUR FORECAST NEW WEAK FRONT NEAR 25S160E.
.48 HOUR FORECAST FRONT 25S163E 22S160E. SE WINDS 20 TO 25 KT S OF
FRONT.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 12 TO 13 FT S OF 23S BETWEEN 168W AND 162W. SEAS 8 TO 12 FT
ELSEWHERE S OF LINE 25S180W 19S172W 18S162W 25S145W. SEAS 8 TO 9
FT FROM 12S TO 18S E OF 125W.
.24 HOUR SEAS 8 TO 9 FT S OF 19S BETWEEN 172W AND 140W.
.48 HOUR FORECAST SEAS 8 TO 12 FT S OF LINE 25S160W 18S140W
11S137W 11S130W 23S120W.

.SEAS 8 FT OR LESS REMAINDER FORECAST AREA.

$$

.FORECASTER JELSEMA. HONOLULU HI.