309  
FZPS40 PHFO 241515  
HSFSP  
 
HIGH SEAS FORECAST  
NATIONAL WEATHER SERVICE HONOLULU HI  
1730 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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 1200 UTC JUL 24 2025.  
24 HOUR FORECAST VALID 1200 UTC JUL 25 2025.  
48 HOUR FORECAST VALID 1200 UTC JUL 26 2025.  
 
.WARNINGS.  
 
.NONE.  
 
.SYNOPSIS AND FORECAST.  
 
.FRONT 25S143W 19S156W THENCE TROUGH 15S170W 12S170E 10S160E.  
FRONT MOVING SE 10 KT AND TROUGH MOVING N SLOWLY. ISOLATED  
MODERATE TSTMS WITHIN 60 NM OF FRONT AND TROUGH.  
.24 HOUR FORECAST FRONT 25S139W 20S152W THENCE TROUGH 16S165W  
12S178E 07S160E.  
.48 HOUR FORECAST FRONT TROUGH 25S137W 21S144W THENCE TROUGH  
18S158W 15S170W 12S172E 05S160E.  
 
.FRONT 25S166E 22S166E MOVING E 15 KT. ISOLATED MODERATE TSTMS S  
OF 23S BETWEEN FRONT AND 175E.  
.24 HOUR FORECAST FRONT 25S171E 23S172E 21S171E.  
.48 HOUR FORECAST FRONT 25S176E 22S175E 20S174E.  
 
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.  
 
.SEAS 2.5 TO 3 M S OF LINE 25S170W 19S176W 19S177W 14S173E 20S170E  
25S166E.  
.24 HOUR FORECAST SEAS 2.5 TO 3 M S OF LINE 25S148W 22S160W  
25S171W.  
.48 HOUR FORECAST SEAS 2.5 TO 4 M S OF LINE 25S134W 17S154W  
14S173W 25S174W  
 
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.  
 
.ISOLATED MODERATE TSTMS BETWEEN 05S AND 01S BETWEEN 161E AND  
169E...AND N OF 03S BETWEEN 173W AND 167W.  
 

 
 
.FORECASTER PIERCE. HONOLULU HI.  
 
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