880  
FZPN03 KNHC 080356  
HSFEP2  
 
HIGH SEAS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
0430 UTC FRI AUG 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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 0000 UTC FRI AUG 08  
24 HOUR FORECAST VALID 0000 UTC SAT AUG 09.  
48 HOUR FORECAST VALID 0000 UTC SUN AUG 10.  
 
.WARNINGS.  
   
..HURRICANE WARNING  
 
.TROPICAL STORM IVO NEAR 19.7N 107.3W 1001 MB AT 0300 UTC AUG 08  
MOVING NW OR 305 DEG AT 19 KT. MAXIMUM SUSTAINED WINDS 50 KT GUSTS  
60 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM E SEMICIRCLE...0 NM  
SW QUADRANT AND 30 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 120 NM  
E SEMICIRCLE AND 30 NM W SEMICIRCLE WITH SEAS TO 5 M. ELSEWHERE  
WITHIN 120 NM E SEMICIRCLE AND 60 NM W SEMICIRCLE...INCLUDING  
CABO CORRIENTES...WINDS 20 TO 33 KT. SEAS 2.5 TO 4 M. REMAINDER OF  
AREA FROM 15N TO 23N BETWEEN 105W AND 109W WINDS 20 KT OR LESS. SEAS  
2.5 TO 3 M IN MIXED SWELL.  
.24 HOUR FORECAST HURRICANE IVO NEAR 21.4N 111.6W. MAXIMUM SUSTAINED  
WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM E  
SEMICIRCLE AND 30 NM W SEMICIRCLE. SEAS 4 M OR GREATER WITHIN 120 NM  
NE QUADRANT...60 NM SE AND NW QUADRANTS...AND 30 NM SW QUADRANT WITH  
SEAS TO 7 M. ELSEWHERE WITHIN 180 NM NE SEMICIRCLE AND 120 NM SW  
SEMICIRCLE WINDS 20 TO 33 KT. SEAS 2.5 TO 4 M. REMAINDER OF AREA  
FROM 17N TO 24N BETWEEN 108W AND 114W...INCLUDING THE ENTRANCE OF  
THE GULF OF CALIFORNIA...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN  
MIXED SWELL.  
.36 HOUR FORECAST TROPICAL STORM IVO NEAR 21.7N 113.1W. MAXIMUM  
SUSTAINED WINDS 60 KT GUSTS 75 KT.  
.48 HOUR FORECAST TROPICAL STORM IVO NEAR 21.9N 114.8W. MAXIMUM  
SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN  
40 NM N SEMICIRCLE AND 30 NM S SEMICIRCLE. SEAS 4 M OR GREATER  
WITHIN 60 NM OF CENTER...EXCEPT 30 NM SE QUADRANT WITH SEAS TO 5.5  
M. ELSEWHERE WITHIN 120 NM OF CENTER WINDS 20 TO 33 KT. SEAS 2.5 TO  
4 M. REMAINDER OF AREA FROM 19N TO 24N BETWEEN 113W AND 117W  
WINDS 20 TO 33 KT. SEAS 2.5 TO 3.5 M IN MIXED SWELL.  
   
..TROPICAL STORM WARNING  
 
.TROPICAL STORM HENRIETTE NEAR 19.1N 138.4W 1007 MB AT 0300 UTC AUG  
08 MOVING W OR 280 DEG AT 14 KT. MAXIMUM SUSTAINED WINDS 35 KT GUSTS  
45 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM N SEMICIRCLE AND 0 NM  
S SEMICIRCLE. SEAS 4 M OR GREATER WITHIN 90 NM N SEMICIRCLE AND 60  
NM S SEMICIRCLE WITH SEAS TO 6 M. ELSEWHERE WITHIN 240 NM N  
SEMICIRCLE AND 60 NM S SEMICIRCLE WINDS 20 TO 33 KT. SEAS 2.5 TO 4  
M. REMAINDER OF AREA FROM 17N TO 24N W OF 134W WINDS 20 KT OR LESS.  
SEAS 2.5 TO 3.5 IN MIXED SWELL.  
.24 HOUR FORECAST TROPICAL STORM HENRIETTE W OF AREA NEAR 20.4N  
143.8W. TROPICAL STORM FORCE WINDS AND SEAS 4 M OR GREATER W OF  
AREA. OVER FORECAST WATERS FROM 19N TO 24N W OF 137W WINDS 20 KT OR  
LESS. SEAS 2.5 TO 3 M IN MIXED SE AND SW SWELL.  
.48 HOUR FORECAST TROPICAL STORM HENRIETTE WELL W OF AREA NEAR 22.9N  
149.0W. TROPICAL STORM FORCE WINDS AND SEAS 4 M OR GREATER WELL W OF  
AREA. OVER FORECAST WATERS WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.  
 
FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED  
WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND  
INTENSITY.  
 
.SYNOPSIS AND FORECAST.  
 
.FROM 03N TO 07N BETWEEN 103W AND 125W WINDS 20 KT OR LESS. SEAS 2.5  
M IN S TO SW SWELL. S OF 01N BETWEEN 82W AND 88W WINDS 20 KT OR  
LESS. SEAS TO 2.5 M IN S TO SW SWELL.  
.24 HOUR FORECAST FROM 02N TO 09N BETWEEN 114W AND 126W WINDS 20 KT  
OR LESS. SEAS 2.5 TO 3 M IN S TO SW SWELL. S OF 02S BETWEEN 106W AND  
114W WINDS 20 KT OR LESS. SEAS TO 2.5 M IN S TO SW SWELL.  
.48 HOUR FORECAST LITTLE CHANGE.  
   
06 HOUR FORECAST FROM 26N TO 29N BETWEEN 110W AND 112W  
 
INCLUDING THE CENTRAL GULF OF CALIFORNIA...SE TO S WINDS 20 TO 25  
KT. SEAS LESS THAN 2.5 M.   
18 HOUR FORECAST FROM 28N TO 31N BETWEEN 112W AND 114W  
INCLUDING  
THE NORTHERN GULF OF CALIFORNIA...SE TO S WINDS 20 TO 25 KT. SEAS  
LESS THAN 2.5 M.  
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.  
 
.06 HOUR FORECAST N OF 29N BETWEEN 120W AND 123W WINDS 20 KT OR  
LESS. SEAS TO 2.5 M IN MIXED N AND S SWELL.  
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.  
 
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.  
 
CONVECTION VALID AT 0345 UTC FRI AUG 08...  
   
TROPICAL STORM IVO  
NUMEROUS MODERATE ISOLATED STRONG FROM 12N  
TO 22N BETWEEN 105W AND 113W.  
   
TROPICAL STORM HENRIETTE  
SCATTERED MODERATE FROM 19N TO 20N  
BETWEEN 138W AND 139W.  
   
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH  
 
MONSOON TROUGH AXIS EXTENDS FROM 10N85W TO 10N100W TO 13N111W TO  
07N122W TO 13N130W TO 12N140W. SCATTERED MODERATE FROM 07N TO 12N  
BETWEEN 103W AND 110W...FROM 08N TO 13N BETWEEN 110W AND 115W AND  
FROM 05N TO 08N BETWEEN 123W AND 127W.  
 
 
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.  
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