757  
FZPN03 KNHC 180404  
HSFEP2  
 
HIGH SEAS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
0430 UTC FRI APR 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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.  
 
SECURITE  
 
E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE  
EQUATOR E OF 120W  
 
SYNOPSIS VALID 0000 UTC FRI APR 18.  
24 HOUR FORECAST VALID 0000 UTC SAT APR 19.  
48 HOUR FORECAST VALID 0000 UTC SUN APR 20.  
 
.WARNINGS.  
 
.NONE.  
 
.SYNOPSIS AND FORECAST.  
 
.WITHIN 11N86W TO 12N87W TO 12N88W TO 11N88W TO 10N88W TO 10N87W  
TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...E WINDS 20 TO 30  
KT. SEAS LESS THAN 8 FT.  
.24 HOUR FORECAST WITHIN 11N86W TO 12N87W TO 11N88W TO 10N88W TO  
10N86W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E  
WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.  
.48 HOUR FORECAST WITHIN 12N87W TO 11N88W TO 11N87W TO 11N86W TO  
12N87W...INCLUDING THE GULF OF PAPAGAYO...E WINDS 20 TO 25 KT.  
SEAS LESS THAN 8 FT.  
 
.WITHIN 08N79W TO 08.5N79.5W TO 08N79.5W TO 07.5N80W TO 07.5N79W  
TO 08N79W...INCLUDING THE GULF OF PANAMA...N WINDS 20 TO 25 KT.  
SEAS LESS THAN 8 FT.  
.24 HOUR FORECAST WITHIN 08N79W TO 08N80W TO 06N80W TO 06N80W TO  
07N79W TO 08N79W...INCLUDING THE GULF OF PANAMA...N WINDS 20 TO  
25 KT. SEAS LESS THAN 8 FT.  
.33 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS  
LESS THAN 8 FT.  
   
WITHIN 30N115W TO 30N114W TO 29N113W TO 30N115W  
INCLUDING THE  
GULF OF CALIFORNIA...SW TO W WINDS 20 TO 25 KT. SEAS LESS THAN 8  
FT.  
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS  
LESS THAN 8 FT.  
 
.WITHIN 12N125W TO 10N132W TO 13N140W TO 08N140W TO 06N129W TO  
06N121W TO 12N125W WINDS 20 KT OR LESS. SEAS 8 FT IN NE TO E  
SWELL.  
.24 HOUR FORECAST WITHIN 15N125W TO 18N136W TO 14N140W TO  
07N140W TO 07N129W TO 12N131W TO 15N125W WINDS 20 KT OR LESS.  
SEAS 8 FT IN NE TO E SWELL.  
.48 HOUR FORECAST WITHIN 15N124W TO 18N140W TO 05N140W TO  
06N134W TO 09N130W TO 10N118W TO 15N124W WINDS 20 KT OR LESS.  
SEAS 8 TO 9 FT IN NE TO E SWELL.  
 
.WITHIN 01S109W TO 01S115W TO 02S119W TO 03.4S120W TO 03.4S107W  
TO 01S109W WINDS 20 KT OR LESS. SEAS 8 FT IN SE SWELL.  
.24 HOUR FORECAST WITHIN 03S116W TO 02S118W TO 02S120W TO  
03.4S120W TO 03.4S115W TO 03S116W WINDS 20 KT OR LESS. SEAS 8 FT  
IN SE TO S SWELL.  
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS  
LESS THAN 8 FT.  
 
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.  
 
CONVECTION VALID AT 0000 UTC FRI APR 18...  
   
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH  
 
TROUGH EXTENDS FROM 1007 MB LOW PRES NEAR 10N74W TO 07N77W TO  
08N83W TO 05N93W. ITCZ FROM 05N93W TO 06N127W...SECOND ITCZ FROM  
01S120W TO BEYOND 05S140W. SCATTERED MODERATE WITHIN 120 NM OF  
TROUGH AXIS...AND FROM 03N TO 10N BETWEEN 103W AND 133W.  
 
 
.FORECASTER ADAMS. NATIONAL HURRICANE CENTER.  
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