330  
FZPN03 KNHC 021621  
HSFEP2  
 
HIGH SEAS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
1630 UTC SAT AUG 2 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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 SAT AUG 2.  
24 HOUR FORECAST VALID 1200 UTC SUN AUG 3.  
48 HOUR FORECAST VALID 1200 UTC MON AUG 4.  
 
.WARNINGS.  
   
..TROPICAL STORM WARNING
 
 
.TROPICAL STORM GIL NEAR 18.3N 128.6W 992 MB AT 1500 UTC AUG 02  
MOVING WNW OR 295 DEG AT 17 KT. MAXIMUM SUSTAINED WINDS 60 KT  
GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE  
QUADRANT...100 NM SE QUADRANT...50 NM SW QUADRANT...AND 90 NM NW  
QUADRANT. SEAS 4 M OR GREATER WITHIN 150 NM W SEMICIRCLE...240  
NM NE QUADRANT AND 210 NM SE QUADRANT WITH SEAS TO 10 M. ELSEWHERE  
WITHIN 22N127W TO 22N131W TO 19N132W TO 16N128W TO 18N124W TO  
22N127W WINDS 20 TO 33 KT. SEAS 3 TO 6 M IN MIXED SWELL.  
REMAINDER OF AREA WITHIN 19N118W TO 24N122W TO 24N140W TO 12N140W  
TO 15N133W TO 09N129W TO 19N118W WINDS 20 KT OR LESS. SEAS 2.5  
TO 4 M IN MIXED SE AND S SWELL.  
.24 HOUR FORECAST TROPICAL STORM GIL NEAR 20.6N 133.8W. MAXIMUM  
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS  
WITHIN 90 NM NE QUADRANT...60 NM SE QUADRANT...50 NM SW  
QUADRANT...AND 80 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 240  
NM NE QUADRANT...210 NM SE QUADRANT...210 NM SW QUADRANT...AND  
180 NM NW QUADRANT WITH SEAS TO 9 M. ELSEWHERE WITHIN 22N131W TO  
24N132W TO 25N135W TO 22N137W TO 19N136W TO 20N132W TO 22N131W  
WINDS 20 TO 33 KT. SEAS 3 TO 6 M IN E TO SE SWELL. REMAINDER OF  
AREA WITHIN 20N125W TO 27N130W TO 24N140W TO 13N140W TO 07N131W  
TO 20N125W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.5 M IN E TO SE  
SWELL.  
.36 HOUR FORECAST POST-TROPICAL GIL NEAR 21.6N 136.6W. MAXIMUM  
SUSTAINED WINDS 40 KT GUSTS 50 KT. SEAS TO 7 M.  
.48 HOUR FORECAST POST-TROPICAL GIL NEAR 22.3N 139.2W. 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 150 NM NE QUADRANT...90 NM SE QUADRANT...120 NM SW  
QUADRANT...AND 120 NM NW QUADRANT WITH SEAS TO 4.5 M. ELSEWHERE  
WITHIN 24N139W TO 25N139W TO 25N140W TO 22N140W TO 22N138W TO  
23N138W TO 24N139W WINDS 20 TO 33 KT. SEAS 3.5 TO 4 M IN MIXED  
SWELL. REMAINDER OF AREA WITHIN 23N132W TO 28N135W TO 29N140W TO  
23N138W TO 22N140W TO 12N140W TO 23N132W WINDS 20 KT OR LESS.  
SEAS 2.5 TO 3.5 M IN E TO SE SWELL.  
 
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.  
 
.WITHIN 16N94.5W TO 16N95W TO 15.5N95W TO 14.5N95.5W TO 14N95.5W  
TO 14.5N94.5W TO 16N94.5W...INCLUDING THE GULF OF TEHUANTEPEC...  
N WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M IN N SWELL. WITHIN 14N95W  
TO 15N95W TO 14N95W TO 15N95W TO 14N96W TO 14N95W N TO NE WINDS  
20 TO 25 KT. SEAS 2.5 TO 3.0 M IN N SWELL.  
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS  
LESS THAN 2.5 M.  
 
.WITHIN 07N98W TO 06N99W TO 06N100W TO 05N99W TO 05N96W TO  
05N96W TO 07N98W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S TO  
SW SWELL.  
.24 HOUR FORECAST WITHIN 04N81W TO 04N83W TO 03N83W TO 03N82W TO  
03N81W TO 03N81W TO 04N81W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0  
M IN S TO SW SWELL.  
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS  
2.5 TO 3.0 M IN S TO SW SWELL.  
 
.WITHIN 03S82W TO 02S86W TO 03S88W TO 03S92W TO 03.4S92W TO  
03.4S82W TO 03S82W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S  
TO SW SWELL.  
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS  
LESS THAN 2.5 M.  
 
.36 HOUR FORECAST WITHIN 15N117W TO 15N118W TO 15N119W TO  
14N119W TO 14N118W TO 14N117W TO 15N117W WINDS 20 KT OR LESS.  
SEAS 2.5 M IN E SWELL.  
.48 HOUR FORECAST WITHIN 15N120W TO 15N121W TO 14N122W TO  
14N121W TO 14N120W TO 15N120W NE WINDS 20 TO 25 KT. SEAS 2.5 TO  
3.0 M IN SW SWELL. WITHIN 16N119W TO 15N122W TO 13N123W TO  
12N120W TO 12N117W TO 14N119W TO 16N119W NE WINDS 20 TO 25 KT.  
SEAS 2.5 M IN S TO SW SWELL.  
 
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.  
 
CONVECTION VALID AT 1500 UTC SAT AUG 2...  
   
TROPICAL STORM GIL
 
SCATTERED TO NUMEROUS MODERATE TO STRONG  
CONVECTION WITHIN 90 NM SW SEMICIRCLE. SCATTERED MODERATE AND  
ISOLATED STRONG CONVECTION ELSEWHERE FROM 13N TO 21N BETWEEN  
122W AND 130W.  
   
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
 
 
MONSOON TROUGH FROM 10N76W TO 07.5N81W TO 10.5N90W TO 08N100W TO  
14N115W THEN RESUMES FROM 11.5N130W TO 07.5N140W. SCATTERED  
MODERATE TO STRONG CONVECTION N OF 03N AND E OF 80W...FROM 06.5N  
TO 10N BETWEEN 80W AND 89W...FROM 06N TO 15N BETWEEN 92W AND  
99W...AND FROM 06N TO 18N BETWEEN 99W AND 116W. SCATTERED  
MODERATE ISOLATED STRONG CONVECTION FROM 06N TO 09.5N BETWEEN  
133W AND 137W.  
 

 
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.  
 
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