FZPS40 PHFO 300948
HSFSP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC WED APR 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 30 2025.
24 HOUR FORECAST VALID 0600 UTC MAY 01 2025.
48 HOUR FORECAST VALID 0600 UTC MAY 02 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 25S139W 18S150W 14S160W 12S165W MOVING E 15 KT. WINDS 20 
TO 25 KT FROM 20S TO TROUGH BETWEEN 160W AND 150W. SCATTERED 
MODERATE TSTMS WITHIN 270 NM OF LINE 05S172W 12S160W 17S152W.
.24 HOUR FORECAST TROUGH 25S130W 20S140W 14S160W. WINDS 20 TO 25 
KT S OF LINE 25S145W 18S160W.
.48 HOUR FORECAST TROUGH 25S126W 17S152W 10S157W. WINDS 20 TO 25 
KT S OF 20S BETWEEN 160W AND 135W. 

.TROUGH 25S173W 20S176W 15S176E NEARLY STATIONARY. SCATTERED 
MODERATE TSTMS S OF 22S BETWEEN 170W AND 179E.
.24 HOUR FORECAST TROUGH 25S172W 17S180E 15S173E. 
.48 HOUR FORECAST TROUGH 25S172W 18S180W.

.TROUGH 09S160E 15S170E MOVING W 10 KT. 
.24 HOUR FORECAST TROUGH MOVED W OF FORECAST AREA. 

.48 HOUR FORECAST WINDS 20 TO 25 KT S OF 16S W OF 165E.

.SEAS 8 TO 9 FT S OF LINE 06S120W 03S135W 20S141W 10S160W
12S172W... AND N OF 07S BETWEEN 155W AND 146W. 
.24 HOUR FORECAST SEAS 8 TO 9 FT S OF LINE 06S120W 06S133W 
18S140W 15S160W.
.48 HOUR FORECAST SEAS 8 TO 10 FT S OF 20S BETWEEN 160W AND 
127W... AND FROM 16S TO 07S E OF 130W... AND S OF 23S W OF 167E. 

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS 8 FT OR LESS.

.NUMEROUS STRONG TSTMS S OF 21S BETWEEN 175W AND 168W. 

$$

.FORECASTER SHIGESATO. HONOLULU HI.