770  
FZPN28 KNHC 042011  
OFFPZ8  
 
OFFSHORE WATERS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
111 PM PDT THU SEP 4 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.  
 
PMZ101-050815-  
SYNOPSIS FOR THE E PACIFIC WITHIN 250 NM OF CENTRAL AMERICA,  
COLOMBIA, AND WITHIN 750 NM OF ECUADOR  
111 PM PDT THU SEP 4 2025  
   
SYNOPSIS  
SW SWELL WILL SUPPORT LOCALLY ROUGH SEAS S OF 05N  
EARLY TONIGHT BEFORE SUBSIDING. MODERATE GAP WINDS WILL PULSE  
ACROSS THE PAPAGAYO REGION THROUGH EARLY NEXT WEEK. LIGHT TO  
GENTLE WINDS WILL PREVAIL ELSEWHERE NORTH OF THE MONSOON TROUGH.  
MODERATE TO FRESH S TO SW WINDS ARE EXPECTED SOUTH OF THE MONSOON  
TROUGH THROUGH EARLY NEXT WEEK.  
 
 
 
PMZ111-050815-  
GUATEMALA AND EL SALVADOR TO 250 NM OFFSHORE-  
111 PM PDT THU SEP 4 2025  
   
TONIGHT  
S WINDS 10 KT IN THE EVENING, BECOMING VARIABLE WINDS  
LESS THAN 5 KT. SEAS 5 TO 7 FT IN S TO SW SWELL. PERIOD  
16 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE  
NIGHT.    
FRI  
E TO SE WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.  
PERIOD 15 SECONDS.    
FRI NIGHT  
SE TO S WINDS 10 KT IN THE EVENING, BECOMING  
VARIABLE WINDS LESS THAN 5 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.  
PERIOD 15 SECONDS. ISOLATED TSTMS THROUGH THE NIGHT.    
SAT  
VARIABLE WINDS LESS THAN 5 KT. SEAS 4 TO 6 FT IN S TO SW  
SWELL. PERIOD 14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS  
THROUGH THE DAY.    
SAT NIGHT  
VARIABLE WINDS LESS THAN 5 KT. SEAS 4 TO 6 FT IN S  
TO SW SWELL. PERIOD 14 SECONDS.    
SUN  
NW WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL. PERIOD  
14 SECONDS.    
SUN NIGHT  
VARIABLE WINDS LESS THAN 5 KT. SEAS 4 TO 6 FT IN S  
SWELL. PERIOD 14 SECONDS.    
MON  
VARIABLE WINDS LESS THAN 5 KT. SEAS 4 TO 6 FT IN S TO SW  
SWELL. PERIOD 14 SECONDS.    
MON NIGHT  
E WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL. PERIOD  
15 SECONDS.    
TUE  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 16 SECONDS.    
TUE NIGHT  
E TO SE WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL.  
PERIOD 15 SECONDS.  
 
 
 
PMZ113-050815-  
EL SALVADOR TO NORTH COSTA RICA INCLUDING THE GULFS OF FONSECA  
AND PAPAGAYO-  
111 PM PDT THU SEP 4 2025  
   
TONIGHT  
S WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.  
PERIOD 16 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH  
THE NIGHT.    
FRI  
N WINDS 10 KT, SHIFTING TO S TO SW IN THE AFTERNOON. SEAS  
5 TO 7 FT IN S TO SW SWELL. PERIOD 15 SECONDS.    
FRI NIGHT  
OFFSHORE GULF OF PAPAGAYO, SE TO S WINDS 10 KT IN  
THE EVENING, BECOMING VARIABLE WINDS LESS THAN 5 KT. ELSEWHERE,  
SW WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW SWELL. PERIOD  
15 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE  
NIGHT.    
SAT  
NW WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL. PERIOD  
14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE  
DAY.    
SAT NIGHT  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
13 SECONDS.    
SUN  
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 13 SECONDS.    
SUN NIGHT  
NE WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL.  
PERIOD 14 SECONDS.    
MON  
E TO SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
14 SECONDS.    
MON NIGHT  
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW SWELL.  
PERIOD 16 SECONDS.    
TUE  
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW SWELL. PERIOD  
16 SECONDS.    
TUE NIGHT  
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW  
SWELL. PERIOD 16 SECONDS.  
 
 
 
PMZ115-050815-  
NORTH COSTA RICA TO WEST PANAMA TO 250 NM OFFSHORE-  
111 PM PDT THU SEP 4 2025  
   
TONIGHT  
SW TO W WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW  
SWELL. PERIOD 16 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS  
THROUGH THE NIGHT.    
FRI  
SW TO W WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW  
SWELL. PERIOD 16 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS  
THROUGH THE DAY.    
FRI NIGHT  
SW TO W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO  
SW SWELL. PERIOD 15 SECONDS. SCATTERED SHOWERS AND ISOLATED  
TSTMS THROUGH THE NIGHT.    
SAT  
SW TO W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 15 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS  
THROUGH THE DAY.    
SAT NIGHT  
SW TO W WINDS 15 TO 20 KT. SEAS 5 TO 7 FT. PERIOD  
14 SECONDS.    
SUN  
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.  
PERIOD 14 SECONDS.    
SUN NIGHT  
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 13 SECONDS.    
MON  
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S SWELL. PERIOD  
12 SECONDS.    
MON NIGHT  
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S SWELL.  
PERIOD 13 SECONDS.    
TUE  
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S SWELL. PERIOD  
14 SECONDS.    
TUE NIGHT  
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 16 SECONDS.  
 
 
 
PMZ117-050815-  
EAST PANAMA AND COLOMBIA INCLUDING THE GULF OF PANAMA-  
111 PM PDT THU SEP 4 2025  
   
TONIGHT  
SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN SW SWELL.  
PERIOD 16 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH  
THE NIGHT.    
FRI  
SW TO W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 15 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS  
THROUGH THE DAY.    
FRI NIGHT  
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 15 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS  
THROUGH THE NIGHT.    
SAT  
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.  
PERIOD 14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH  
THE DAY.    
SAT NIGHT  
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 12 SECONDS.    
SUN  
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.  
PERIOD 12 SECONDS.    
SUN NIGHT  
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
11 SECONDS.    
MON  
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 11 SECONDS.    
MON NIGHT  
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
14 SECONDS.    
TUE  
SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 16 SECONDS.    
TUE NIGHT  
SW TO W WINDS 10 KT. SEAS 4 TO 6 FT IN SW SWELL.  
PERIOD 16 SECONDS.  
 
 
 
PMZ119-050815-  
ECUADOR INCLUDING THE GULF OF GUAYAQUIL TO 250 NM OFFSHORE-  
111 PM PDT THU SEP 4 2025  
   
TONIGHT  
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW  
SWELL. PERIOD 15 SECONDS.    
FRI  
GULF OF GUAYAQUIL, VARIABLE WINDS LESS THAN 5 KT,  
BECOMING W 10 TO 15 KT IN THE AFTERNOON. ELSEWHERE, S TO SW  
WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW SWELL. PERIOD  
15 SECONDS.    
FRI NIGHT  
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO  
SW SWELL. PERIOD 14 SECONDS.    
SAT  
GULF OF GUAYAQUIL, VARIABLE WINDS LESS THAN 5 KT,  
BECOMING W 10 KT IN THE AFTERNOON. ELSEWHERE, S TO SW WINDS  
10 TO 15 KT. SEAS 5 TO 7 FT. PERIOD 14 SECONDS.    
SAT NIGHT  
S TO SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
13 SECONDS.    
SUN  
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 13 SECONDS.    
SUN NIGHT  
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO  
SW SWELL. PERIOD 13 SECONDS.    
MON  
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S SWELL.  
PERIOD 14 SECONDS.    
MON NIGHT  
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S  
SWELL. PERIOD 16 SECONDS.    
TUE  
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 16 SECONDS.    
TUE NIGHT  
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO  
SW SWELL. PERIOD 16 SECONDS.  
 
 
 
PMZ121-050815-  
ECUADOR BETWEEN 250 AND 500 NM OFFSHORE-  
111 PM PDT THU SEP 4 2025  
   
TONIGHT  
S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW SWELL.  
PERIOD 15 SECONDS.    
FRI  
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.  
PERIOD 14 SECONDS.    
FRI NIGHT  
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 14 SECONDS.    
SAT  
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 14 SECONDS.    
SAT NIGHT  
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
13 SECONDS.    
SUN  
S WINDS 15 KT. SEAS 5 TO 7 FT IN S SWELL. PERIOD  
13 SECONDS.    
SUN NIGHT  
S WINDS 15 KT. SEAS 5 TO 7 FT IN S SWELL. PERIOD  
13 SECONDS.    
MON  
S WINDS 15 KT. SEAS 5 TO 7 FT IN S SWELL. PERIOD  
15 SECONDS.    
MON NIGHT  
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S SWELL.  
PERIOD 15 SECONDS.    
TUE  
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.  
PERIOD 16 SECONDS.    
TUE NIGHT  
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S SWELL.  
PERIOD 15 SECONDS.  
 
 
 
PMZ123-050815-  
OFFSHORE GALAPAGOS ISLANDS-  
111 PM PDT THU SEP 4 2025  
   
TONIGHT  
SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 15 SECONDS.    
FRI  
SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 14 SECONDS.    
FRI NIGHT  
SE TO S WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 14 SECONDS.    
SAT  
SE TO S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
14 SECONDS.    
SAT NIGHT  
SE TO S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
12 SECONDS.    
SUN  
SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S SWELL.  
PERIOD 12 SECONDS.    
SUN NIGHT  
SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S  
SWELL. PERIOD 13 SECONDS.    
MON  
SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 14 SECONDS.    
MON NIGHT  
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO  
SW SWELL. PERIOD 13 SECONDS.    
TUE  
SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 13 SECONDS.    
TUE NIGHT  
SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S  
SWELL. PERIOD 12 SECONDS.  
 
 
 
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