403  
FZPN03 KNHC 082108  
HSFEP2  
 
HIGH SEAS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
2230 UTC TUE APR 08 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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 1800 UTC TUE APR 08.  
24 HOUR FORECAST VALID 1800 UTC WED APR 09.  
48 HOUR FORECAST VALID 1800 UTC THU APR 10.  
 
.WARNINGS.  
   
..GALE WARNING
 
 
.WITHIN 16N95W TO 16N96W TO 14N96W TO 14N95W TO 15N95W TO  
16N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO  
45 KT. SEAS 10 TO 14 FT. ELSEWHERE...WITHIN 16N94W TO 16N95W TO  
16N96W TO 13N99W TO 13N96W TO 14N94W TO 16N94W N TO NE WINDS 20  
TO 30 KT. SEAS 8 TO 12 FT IN N TO NE SWELL. REMAINDER OF AREA  
...WITHIN 16N93W TO 16N95W TO 14N99W TO 12N99W TO 11N95W TO  
13N93W TO 16N93W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.  
.24 HOUR FORECAST WITHIN 15N94W TO 16N95W TO 16N96W TO 14N97W TO  
13N97W TO 13N96W TO 15N94W...INCLUDING THE GULF OF  
TEHUANTEPEC... NE WINDS 30 TO 35 KT. SEAS 10 TO 15 FT.  
ELSEWHERE...WITHIN 16N95W TO 13N103W TO 11N102W TO 10N99W TO  
10N95W TO 12N94W TO 16N95W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO  
10 FT IN NE SWELL.  
.48 HOUR FORECAST WITHIN 16N95W TO 16N96W TO 14N96W TO 13N96W TO  
14N95W TO 15N94W TO 16N95W...INCLUDING THE GULF OF  
TEHUANTEPEC... N TO NE WINDS 20 TO 30 KT. SEAS 9 TO 13 FT.  
ELSEWHERE...WITHIN 15N93W TO 18N119W TO 12N140W TO 04N140W TO  
03.4S120W TO 02S97W TO 15N93W...INCLUDING EXCEPT LEE OF GALAPAGOS  
ISLANDS...WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN SW SWELL.  
 
.SYNOPSIS AND FORECAST.  
 
.WITHIN 30N116W TO 30N140W TO 00N140W TO 03.4S120W TO 01S107W TO  
11N115W TO 30N116W...INCLUDING SEBASTIAN VIZCAINO BAY AND WITHIN  
60 NM OF SHORE WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.  
.24 HOUR FORECAST WITHIN 15N110W TO 22N124W TO 23N140W TO  
00N140W TO 03.4S119W TO 03S93W TO 15N110W WINDS 20 KT OR LESS.  
SEAS 8 TO 10 FT IN W TO NW SWELL...EXCEPT IN S TO SW SWELL S OF  
07N BETWEEN 93W AND 125W.  
.48 HOUR FORECAST CONDITIONS TO MERGE WITH THOSE DESCRIBED ABOVE  
UNDER WARNINGS.  
 
.18 HOUR FORECAST WITHIN 11N86W TO 12N87W TO 11N88W TO 10N89W TO  
09N88W TO 10N87W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...  
NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.  
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.  
.36 HOUR FORECAST WITHIN 12N86W TO 11N88W TO 11N89W TO 10N88W TO  
10N87W TO 10N86W TO 12N86W...INCLUDING THE GULF OF PAPAGAYO...  
NE TO E WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.  
.48 HOUR FORECAST WITHIN 10N86W TO 12N87W TO 10N90W TO 09N91W TO  
08N90W TO 09N88W TO 10N86W...INCLUDING THE GULF OF PAPAGAYO...  
NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.  
 
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.  
 
CONVECTION VALID AT 2100 UTC TUE APR 08...  
   
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
 
 
TROUGH AXIS EXTENDS FROM LOW PRES NEAR 10N74W 1009 MB TO  
05.5N76W. ITCZ SEGMENT EXTENDS FROM 04N89W TO 03N104W. SURFACE  
TROUGH FROM 07N109W TO 00N127W. ITCZ SEGMENT ALONG 00N BETWEEN  
130W AND 140W. NUMEROUS MODERATE TO STRONG WITHIN 120 NM N OF  
TROUGH BETWEEN 109W AND 120W. SCATTERED MODERATE ISOLATED STRONG  
WITHIN 120 NM N OF THE ITCZ BETWEEN 90W AND 94W AND WITHIN 120 NM  
S OF ITCZ BETWEEN 101W AND 104W.  
 

 
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.  
 
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