541  
FZPN28 KNHC 220818  
OFFPZ8  
 
OFFSHORE WATERS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
118 AM PDT FRI AUG 22 2025  
 
OFFSHORE WATERS FORECAST FOR THE E PACIFIC WITHIN 250 NM OF  
CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR  
 
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.  
 
PMZ101-222030-  
SYNOPSIS FOR THE E PACIFIC WITHIN 250 NM OF CENTRAL AMERICA,  
COLOMBIA, AND WITHIN 750 NM OF ECUADOR  
118 AM PDT FRI AUG 22 2025  
   
SYNOPSIS  
LIGHT TO GENTLE WINDS WILL PREVAIL ACROSS THE WATERS  
NORTH OF ABOUT 07N THROUGH THE WEEKEND, EXCEPT FOR MODERATE TO  
LOCALLY FRESH WINDS PULSING IN THE GULF OF PAPAGAYO AT NIGHT  
THROUGH EARLY NEXT WEEK. GENTLE TO MODERATE WINDS ARE EXPECTED  
SOUTH OF 05N. WINDS BECOME LIGHT TO GENTLE OVER MOST OF THE  
WATERS SOUTH OF NORTHERN COSTA RICA EARLY NEXT WEEK. CROSS-  
EQUATORIAL SOUTHERLY SWELL WILL PROPAGATE ACROSS THE REGIONAL  
WATERS KEEPING SEAS IN THE MODERATE RANGE TODAY, EXCEPT IN THE  
LEE OF THE GALAPAGOS ISLANDS, WHERE SLIGHT SEAS ARE EXPECTED.  
ANOTHER SET OF LARGE SWELL WILL BEGIN TO PROPAGATE THROUGH THE  
WATERS OFF ECUADOR AND COLOMBIA THIS EVENING, AND REACH THE  
OFFSHORE WATERS OF CENTRAL AMERICA BY SUN.  
 
 
 
PMZ111-222030-  
GUATEMALA AND EL SALVADOR TO 250 NM OFFSHORE-  
118 AM PDT FRI AUG 22 2025  
   
TODAY  
E WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL. PERIOD  
17 SECONDS. ISOLATED SHOWERS AND THUNDERSTORMS.    
TONIGHT  
E TO SE WINDS 10 KT IN THE EVENING, BECOMING VARIABLE  
WINDS LESS THAN 5 KT. SEAS 3 TO 5 FT IN S TO SW SWELL. PERIOD 16  
SECONDS. ISOLATED SHOWERS AND THUNDERSTORMS.   
SAT  
E TO SE WINDS 10 KT. SEAS 3 TO 5 FT IN S TO SW SWELL.  
PERIOD 15 SECONDS. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
SAT NIGHT  
E TO SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT IN S  
SWELL. PERIOD 17 SECONDS. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.    
SUN  
E TO SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
18 SECONDS.    
SUN NIGHT  
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S SWELL.  
PERIOD 19 SECONDS.    
MON  
E TO SE WINDS 10 KT. SEAS 6 TO 8 FT IN S SWELL. PERIOD  
18 SECONDS.    
MON NIGHT  
E WINDS 10 KT. SEAS 6 TO 8 FT IN S SWELL. PERIOD  
17 SECONDS.    
TUE  
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S SWELL. PERIOD  
15 SECONDS.    
TUE NIGHT  
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S SWELL.  
PERIOD 14 SECONDS.  
 
 
 
PMZ113-222030-  
EL SALVADOR TO NORTH COSTA RICA INCLUDING THE GULFS OF FONSECA  
AND PAPAGAYO-  
118 AM PDT FRI AUG 22 2025  
   
TODAY  
NE WINDS 10 KT, SHIFTING TO SE IN THE AFTERNOON. SEAS  
3 TO 5 FT IN S SWELL. PERIOD 17 SECONDS. SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS.    
TONIGHT  
S WINDS 10 KT. SEAS 4 TO 6 FT IN S SWELL. PERIOD  
16 SECONDS. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.   
SAT  
E WINDS 10 KT, SHIFTING TO S IN THE AFTERNOON. SEAS 4 TO  
6 FT IN S SWELL. PERIOD 15 SECONDS. SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS.    
SAT NIGHT  
S WINDS 10 KT. SEAS 4 TO 6 FT IN S SWELL. PERIOD  
16 SECONDS. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.   
SUN  
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 17 SECONDS.    
SUN NIGHT  
SW TO W WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 18 SECONDS.    
MON  
N TO NE WINDS 10 KT. SEAS 5 TO 7 FT IN S SWELL. PERIOD  
18 SECONDS.    
MON NIGHT  
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S SWELL.  
PERIOD 17 SECONDS.    
TUE  
NE TO E WINDS 15 TO 20 KT. SEAS 6 TO 8 FT IN S SWELL.  
PERIOD 15 SECONDS.    
TUE NIGHT  
E TO SE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S  
SWELL. PERIOD 14 SECONDS.  
 
 
 
PMZ115-222030-  
NORTH COSTA RICA TO WEST PANAMA TO 250 NM OFFSHORE-  
118 AM PDT FRI AUG 22 2025  
   
TODAY  
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S SWELL. PERIOD  
17 SECONDS. SCATTERED SHOWERS AND THUNDERSTORMS.   
TONIGHT  
NEAR THE AZUERO PENINSULA, W WINDS 10 KT IN THE  
EVENING, BECOMING VARIABLE WINDS LESS THAN 5 KT. ELSEWHERE, SW  
WINDS 15 TO 20 KT. SEAS 6 TO 8 FT IN S SWELL. PERIOD 16 SECONDS.  
SCATTERED SHOWERS AND THUNDERSTORMS..    
SAT  
NEAR THE AZUERO PENINSULA, VARIABLE WINDS LESS THAN 5 KT,  
BECOMING SW TO W 10 KT IN THE AFTERNOON. ELSEWHERE, SW WINDS  
10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW SWELL. PERIOD 15 SECONDS.  
SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS.   
SAT NIGHT  
NEAR THE AZUERO PENINSULA, W WINDS 10 KT IN THE  
EVENING, BECOMING VARIABLE WINDS LESS THAN 5 KT. ELSEWHERE, SW  
TO W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. PERIOD 14 SECONDS.  
SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS.   
SUN  
SW TO W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 17 SECONDS.    
SUN NIGHT  
W WINDS 10 KT. SEAS 6 TO 8 FT IN S TO SW SWELL.  
PERIOD 19 SECONDS.    
MON  
VARIABLE WINDS LESS THAN 5 KT NEAR THE AZUERO PENINSULA,  
AND W 10 KT ELSEWHERE. SEAS 6 TO 9 FT IN S TO SW SWELL. PERIOD  
17 SECONDS.    
MON NIGHT  
VARIABLE WINDS LESS THAN 5 KT NEAR THE AZUERO  
PENINSULA, AND W TO NW 10 KT ELSEWHERE. SEAS 7 TO 10 FT IN S TO  
SW SWELL. PERIOD 16 SECONDS.    
TUE  
S TO SW WINDS 10 KT. SEAS 6 TO 9 FT IN S SWELL. PERIOD  
14 SECONDS.    
TUE NIGHT  
VARIABLE WINDS LESS THAN 5 KT NEAR THE AZUERO  
PENINSULA, AND S TO SW 10 KT ELSEWHERE. SEAS 6 TO 8 FT IN S  
SWELL. PERIOD 13 SECONDS.  
 
 
 
PMZ117-222030-  
EAST PANAMA AND COLOMBIA INCLUDING THE GULF OF PANAMA-  
118 AM PDT FRI AUG 22 2025  
   
TODAY  
SW TO W WINDS 10 TO 15 KT GULF OF PANAMA, AND SW 15 TO  
20 KT ELSEWHERE. SEAS 5 TO 7 FT IN S TO SW SWELL. PERIOD  
18 SECONDS. SCATTERED SHOWERS AND THUNDERSTORMS.   
TONIGHT  
SW WINDS 10 TO 15 KT GULF OF PANAMA, AND S TO SW  
15 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT. PERIOD 17 SECONDS.  
SCATTERED SHOWERS AND THUNDERSTORMS.    
SAT  
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.  
PERIOD 16 SECONDS. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.   
SAT NIGHT  
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
15 SECONDS. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.   
SUN  
SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW SWELL.  
PERIOD 17 SECONDS.    
SUN NIGHT  
SW TO W WINDS 10 KT. SEAS 6 TO 9 FT IN S TO SW  
SWELL. PERIOD 17 SECONDS.    
MON  
SW WINDS 10 KT. SEAS 7 TO 10 FT IN S TO SW SWELL. PERIOD  
17 SECONDS.    
MON NIGHT  
W WINDS 10 TO 15 KT. SEAS 7 TO 10 FT IN S TO SW  
SWELL. PERIOD 16 SECONDS.    
TUE  
SW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO SW SWELL.  
PERIOD 15 SECONDS.    
TUE NIGHT  
VARIABLE WINDS LESS THAN 5 KT GULF OF PANAMA, AND  
SW 10 KT ELSEWHERE. SEAS 5 TO 7 FT IN S TO SW SWELL. PERIOD  
14 SECONDS.  
 
 
 
PMZ119-222030-  
ECUADOR INCLUDING THE GULF OF GUAYAQUIL TO 250 NM OFFSHORE-  
118 AM PDT FRI AUG 22 2025  
   
TODAY  
W WINDS 10 KT GULF OF GUAYAQUIL, AND S TO SW 15 TO  
20 KT ELSEWHERE. SEAS 5 TO 7 FT. PERIOD 16 SECONDS.    
TONIGHT  
SW TO W WINDS 10 TO 15 KT GULF OF GUAYAQUIL, AND S TO  
SW 15 TO 20 KT ELSEWHERE. SEAS 5 TO 7 FT. PERIOD 15 SECONDS.    
SAT  
SW TO W WINDS 10 TO 15 KT GULF OF GUAYAQUIL, AND S TO SW  
15 TO 20 KT ELSEWHERE. SEAS 6 TO 8 FT IN S TO SW SWELL. PERIOD  
14 SECONDS.    
SAT NIGHT  
W WINDS 10 TO 15 KT GULF OF GUAYAQUIL, AND S TO SW  
15 TO 20 KT ELSEWHERE. SEAS 6 TO 9 FT IN S TO SW SWELL. PERIOD  
20 SECONDS.    
SUN  
S TO SW WINDS 10 TO 15 KT. SEAS 8 TO 12 FT IN S TO SW  
SWELL. PERIOD 18 SECONDS.    
SUN NIGHT  
S TO SW WINDS 10 TO 15 KT. SEAS 8 TO 12 FT IN S TO  
SW SWELL. PERIOD 17 SECONDS.    
MON  
S TO SW WINDS 10 TO 15 KT. SEAS 7 TO 11 FT IN S TO SW  
SWELL. PERIOD 16 SECONDS.    
MON NIGHT  
S TO SW WINDS 10 TO 15 KT. SEAS 7 TO 10 FT IN S TO  
SW SWELL. PERIOD 14 SECONDS.    
TUE  
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW  
SWELL. PERIOD 14 SECONDS.    
TUE NIGHT  
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO  
SW SWELL. PERIOD 13 SECONDS.  
 
 
 
PMZ121-222030-  
ECUADOR BETWEEN 250 AND 500 NM OFFSHORE-  
118 AM PDT FRI AUG 22 2025  
   
TODAY  
S WINDS 15 KT. SEAS 5 TO 7 FT IN S SWELL. PERIOD  
16 SECONDS.    
TONIGHT  
SE TO S WINDS 15 KT. SEAS 5 TO 7 FT IN S SWELL.  
PERIOD 15 SECONDS.    
SAT  
S WINDS 15 KT. SEAS 6 TO 8 FT IN S SWELL. PERIOD  
14 SECONDS.    
SAT NIGHT  
S WINDS 15 KT. SEAS 7 TO 10 FT IN S TO SW SWELL.  
PERIOD 20 SECONDS.    
SUN  
SE TO S WINDS 10 TO 15 KT. SEAS 8 TO 12 FT IN S TO SW  
SWELL. PERIOD 18 SECONDS.    
SUN NIGHT  
SE TO S WINDS 10 TO 15 KT. SEAS 8 TO 12 FT IN S TO  
SW SWELL. PERIOD 16 SECONDS.    
MON  
SE TO S WINDS 10 TO 15 KT. SEAS 7 TO 11 FT IN S SWELL.  
PERIOD 15 SECONDS.    
MON NIGHT  
SE TO S WINDS 10 TO 15 KT. SEAS 7 TO 10 FT IN S  
SWELL. PERIOD 14 SECONDS.    
TUE  
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S SWELL.  
PERIOD 13 SECONDS.    
TUE NIGHT  
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN SE TO  
S SWELL. PERIOD 12 SECONDS.  
 
 
 
PMZ123-222030-  
OFFSHORE GALAPAGOS ISLANDS-  
118 AM PDT FRI AUG 22 2025  
   
TODAY  
SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S SWELL.  
PERIOD 15 SECONDS.    
TONIGHT  
SE TO S WINDS 15 TO 20 KT. SEAS 6 TO 8 FT IN S SWELL.  
PERIOD 14 SECONDS.    
SAT  
SE TO S WINDS 15 TO 20 KT. SEAS 6 TO 9 FT IN S SWELL.  
PERIOD 18 SECONDS.    
SAT NIGHT  
SE TO S WINDS 15 KT. SEAS 7 TO 11 FT IN S SWELL.  
PERIOD 19 SECONDS.    
SUN  
SE WINDS 10 TO 15 KT. SEAS 8 TO 12 FT IN S SWELL. PERIOD  
16 SECONDS.    
SUN NIGHT  
SE WINDS 10 TO 15 KT. SEAS 8 TO 12 FT IN S SWELL.  
PERIOD 15 SECONDS.    
MON  
SE WINDS 10 TO 15 KT. SEAS 7 TO 11 FT IN S SWELL. PERIOD  
13 SECONDS.    
MON NIGHT  
SE WINDS 10 TO 15 KT. SEAS 7 TO 10 FT IN SE TO S  
SWELL. PERIOD 13 SECONDS.    
TUE  
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN SE TO S  
SWELL. PERIOD 12 SECONDS.    
TUE NIGHT  
SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SE TO  
S SWELL. PERIOD 12 SECONDS.  
 
 
 
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