686  
FZPS40 PHFO 240311  
HSFSP  
 
HIGH SEAS FORECAST  
NATIONAL WEATHER SERVICE HONOLULU HI  
0530 UTC THU JUL 24 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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 JUL 24 2025.  
24 HOUR FORECAST VALID 0000 UTC JUL 25 2025.  
48 HOUR FORECAST VALID 0000 UTC JUL 26 2025.  
 
.WARNINGS.  
 
.NONE.  
 
.SYNOPSIS AND FORECAST.  
 
.FRONT 25S140W 22S150W 21S155W THENCE TROUGH 18S163W 15S165W  
12S176W 05S160E. FRONT MOVING SE 15 KT AND TROUGH NEARLY  
STATIONARY. SEAS 2.5 TO 3 M S OF FRONT AND TROUGH E OF 160W.  
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH 25S135W 23S145W  
15S165W.  
.48 HOUR FORECAST TROUGH 25S141W 18S153W THENCE 10S175W.  
 
.48 HOUR FORECAST NEW FRONT 25S171E 22S171E.  
 
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.  
 
.SEAS 2.5 TO 3 M S OF LINE 25S175W 18S171E 25S165E.  
.24 HOUR FORECAST SEAS 2.5 TO 3 M S OF LINE 25S170W 15S177E  
16S169E 25S164E.  
.48 HOUR FORECAST SEAS 2.5 TO 3 M S OF LINE 25S145W 22S160W  
25S177W  
 
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.  
 
 
 
.FORECASTER PECHACEK. HONOLULU HI.  
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