001  
FZPN03 KNHC 081546  
HSFEP2  
 
HIGH SEAS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
1630 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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 1200 UTC TUE APR 08.  
24 HOUR FORECAST VALID 1200 UTC WED APR 09.  
48 HOUR FORECAST VALID 1200 UTC THU APR 10.  
 
.WARNINGS.  
   
..GALE WARNING
 
 
.WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO 14N95W TO 15N94W  
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30  
TO 45 KT. SEAS 10 TO 16 FT. ELSEWHERE WITHIN 16N93W TO 16N94W TO  
15N97W TO 13N97W TO 13N94W TO 14N94W TO 16N93W N TO NE WINDS 20  
TO 30 KT. SEAS 8 TO 12 FT.  
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W TO  
14N96W TO 14N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC  
...N TO NE WINDS 30 TO 45 KT. SEAS 10 TO 18 FT. ELSEWHERE WITHIN  
16N93W TO 16N96W TO 14N98W TO 13N97W TO 12N96W TO 14N94W TO  
16N93W N TO NE WINDS 20 TO 30 KT. SEAS 10 TO 14 FT. REMAINDER OF  
AREA WITHIN 15N93W TO 15N96W TO 13N101W TO 11N99W TO 11N97W TO  
11N95W TO 15N93W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN N TO NE  
SWELL.  
.30 HOUR FORECAST WITHIN 16N94W TO 16N96W TO 14N97W TO 13N97W TO  
14N95W TO 14N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC  
...N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. ELSEWHERE WITHIN  
15N94W TO 13N102W TO 11N101W TO 10N97W TO 12N94W TO 15N94W WINDS  
20 KT OR LESS. SEAS 8 TO 10 FT IN NE SWELL.  
.39 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 14N96W TO  
14N95W TO 15N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC  
...N TO NE WINDS 20 TO 35 KT. SEAS 8 TO 10 FT.   
48 HOUR FORECAST LITTLE CHANGE
 
EXCEPT SEAS BUILDING TO 12 FT.  
 
.SYNOPSIS AND FORECAST.  
 
.WITHIN 25N114W TO 29N118W TO 30N140W TO 01N140W TO 11N121W TO  
25N114W...INCLUDING NEAR SEBASTIAN VIZCAINO BAY AND WITHIN 60 NM  
OF SHORE...WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW SWELL.  
.24 HOUR FORECAST WITHIN 30N117W TO 26N140W TO 00N140W TO  
03.4S97W TO 10N114W TO 30N117W...INCLUDING NEAR SEBASTIAN  
VIZCAINO BAY...WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL  
...EXCEPT MAINLY IN SW SWELL S OF 09N.  
.48 HOUR FORECAST WITHIN 13N100W TO 20N120W TO 14N140W TO  
03N140W TO 03.4S120W TO 03.4S89W TO 13N100W WINDS 20 KT OR LESS.  
SEAS 8 TO 10 FT IN MERGING SW AND NW SWELL.  
 
.06 HOUR FORECAST WITHIN 02S115W TO 02S120W TO 03.4S120W TO  
03.4S117W TO 02S115W WINDS 20 KT OR LESS. SEAS 8 FT IN S TO SW  
SWELL.  
.24 HOUR FORECAST CONDITIONS TO MERGE WITH NW SWELL FEATURE  
ABOVE.  
 
.24 HOUR FORECAST WITHIN 11N86W TO 11N88W TO 10N88W TO 10N87W TO  
11N86W...INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT.  
SEAS LESS THAN 8 FT.  
.33 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.  
.42 HOUR FORECAST WITHIN 12N86W TO 11N88W TO 09N91W TO 10N88W TO  
11N86W TO 12N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E  
WINDS 20 TO 30 KT. SEAS TO 8 FT.  
.48 HOUR FORECAST LITTLE CHANGE.  
 
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.  
 
CONVECTION VALID AT 1530 UTC TUE APR 08...  
 
.SCATTERED MODERATE ISOLATED STRONG FROM 00N TO 08N BETWEEN 77W  
AND 82W.  
   
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
 
 
SURFACE TROUGH AXIS EXTENDS FROM LOW PRES NEAR 08N75W 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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