274  
FZPN28 KNHC 140315  
OFFPZ8  
 
OFFSHORE WATERS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
815 PM PDT SAT SEP 13 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.  
 
PMZ101-141515-  
SYNOPSIS FOR THE E PACIFIC WITHIN 250 NM OF CENTRAL AMERICA,  
COLOMBIA, AND WITHIN 750 NM OF ECUADOR  
815 PM PDT SAT SEP 13 2025  
   
SYNOPSIS  
A LONG-PERIOD SOUTHERN HEMISPHERE SWELL WILL MOVE  
THROUGH THE CENTRAL AND SOUTH AMERICAN WATERS THIS WEEKEND,  
LEADING TO ROUGH SEAS OFFSHORE OF ECUADOR BY TONIGHT, AND  
OFFSHORE OF COLOMBIA THROUGH COSTA RICA SUN INTO EARLY NEXT WEEK.  
SEAS WILL SLOWLY SUBSIDE REGION-WIDE INTO TUE, THOUGH ROUGH SEAS  
MAY PREVAIL BETWEEN THE GALAPAGOS ISLANDS AND ECUADOR THROUGH  
MIDWEEK. OTHERWISE, MODERATE TO OCCASIONALLY FRESH S TO SW WINDS  
WILL PREVAIL SOUTH OF THE MONSOON TROUGH. LOOKING AHEAD,  
OCCASIONAL MODERATE NE GAP WINDS WILL BE POSSIBLE IN THE GULF OF  
PAPAGAYO BY THE MIDDLE OF NEXT WEEK.  
 
 
 
PMZ111-141515-  
GUATEMALA AND EL SALVADOR TO 250 NM OFFSHORE-  
815 PM PDT SAT SEP 13 2025  
   
TONIGHT  
E WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL.  
PERIOD 14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH  
THE NIGHT.    
SUN  
SE WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW SWELL. PERIOD  
19 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE  
DAY.    
SUN NIGHT  
E TO SE WINDS 10 KT. SEAS 6 TO 8 FT IN S TO SW  
SWELL. PERIOD 19 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS  
THROUGH THE NIGHT.    
MON  
SE WINDS 10 KT. SEAS 6 TO 8 FT IN S TO SW SWELL. PERIOD  
17 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE  
DAY.    
MON NIGHT  
SE WINDS 10 KT. SEAS 6 TO 8 FT IN S TO SW SWELL.  
PERIOD 15 SECONDS.    
TUE  
VARIABLE WINDS LESS THAN 5 KT. SEAS 6 TO 8 FT IN S TO SW  
SWELL. PERIOD 15 SECONDS.    
TUE NIGHT  
SW WINDS 10 KT. SEAS 6 TO 8 FT IN S TO SW SWELL.  
PERIOD 14 SECONDS.    
WED  
W TO NW WINDS 10 KT. SEAS 6 TO 8 FT IN S TO SW SWELL.  
PERIOD 14 SECONDS.    
WED NIGHT  
SW WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.  
PERIOD 14 SECONDS.    
THU  
VARIABLE WINDS LESS THAN 5 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 13 SECONDS.    
THU NIGHT  
VARIABLE WINDS LESS THAN 5 KT. SEAS 4 TO 6 FT IN S  
TO SW SWELL. PERIOD 13 SECONDS.  
 
 
 
PMZ113-141515-  
EL SALVADOR TO NORTH COSTA RICA INCLUDING THE GULFS OF FONSECA  
AND PAPAGAYO-  
815 PM PDT SAT SEP 13 2025  
   
TONIGHT  
SE WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL.  
PERIOD 14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH  
THE NIGHT.    
SUN  
S WINDS 10 KT. SEAS 5 TO 7 FT IN S TO SW SWELL. PERIOD  
19 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE  
DAY.    
SUN NIGHT  
VARIABLE WINDS LESS THAN 5 KT OFFSHORE GULF OF  
PAPAGAYO, AND S TO SW 10 KT ELSEWHERE. SEAS 6 TO 8 FT IN S TO SW  
SWELL. PERIOD 19 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS  
THROUGH THE NIGHT.    
MON  
S TO SW WINDS 10 KT. SEAS 6 TO 8 FT IN S TO SW SWELL.  
PERIOD 17 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH  
THE DAY.    
MON NIGHT  
W TO NW WINDS 10 KT. SEAS 6 TO 8 FT IN S TO SW  
SWELL. PERIOD 15 SECONDS.    
TUE  
NW TO N WINDS 10 KT. SEAS 6 TO 8 FT IN S TO SW SWELL.  
PERIOD 15 SECONDS.    
TUE NIGHT  
NW WINDS 10 KT. SEAS 6 TO 8 FT IN S TO SW SWELL.  
PERIOD 14 SECONDS.    
WED  
NW TO N WINDS 10 KT. SEAS 6 TO 8 FT IN S TO SW SWELL.  
PERIOD 14 SECONDS.    
WED NIGHT  
VARIABLE WINDS LESS THAN 5 KT OFFSHORE GULF OF  
PAPAGAYO, AND W 10 KT ELSEWHERE. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 14 SECONDS.    
THU  
S TO SW WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL.  
PERIOD 13 SECONDS.    
THU NIGHT  
SW WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL.  
PERIOD 13 SECONDS.  
 
 
 
PMZ115-141515-  
NORTH COSTA RICA TO WEST PANAMA TO 250 NM OFFSHORE-  
815 PM PDT SAT SEP 13 2025  
   
TONIGHT  
SW TO W WINDS 10 KT. SEAS 4 TO 6 FT IN S TO SW SWELL.  
PERIOD 14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH  
THE NIGHT.    
SUN  
VARIABLE WINDS LESS THAN 5 KT NEAR THE AZUERO PENINSULA,  
AND SW 10 KT ELSEWHERE. SEAS 6 TO 8 FT IN S TO SW SWELL. PERIOD  
19 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE  
DAY.    
SUN NIGHT  
VARIABLE WINDS LESS THAN 5 KT NEAR THE AZUERO  
PENINSULA, AND SW TO W 10 KT ELSEWHERE. SEAS 6 TO 9 FT IN S TO  
SW SWELL. PERIOD 18 SECONDS. SCATTERED SHOWERS AND ISOLATED  
TSTMS THROUGH THE NIGHT.    
MON  
NEAR THE AZUERO PENINSULA, VARIABLE WINDS LESS THAN 5 KT,  
BECOMING W TO NW 10 KT IN THE AFTERNOON. ELSEWHERE, SW TO W  
WINDS 10 KT. SEAS 6 TO 9 FT IN S TO SW SWELL. PERIOD 17 SECONDS.  
SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE DAY.    
MON NIGHT  
W WINDS 10 KT. SEAS 6 TO 8 FT IN S TO SW SWELL.  
PERIOD 15 SECONDS.    
TUE  
SW TO W WINDS 10 KT. SEAS 6 TO 9 FT IN S TO SW SWELL.  
PERIOD 15 SECONDS.    
TUE NIGHT  
SW TO W WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO  
SW SWELL. PERIOD 15 SECONDS.    
WED  
SW TO W WINDS 15 TO 20 KT. SEAS 6 TO 9 FT IN S TO SW  
SWELL. PERIOD 14 SECONDS.    
WED NIGHT  
SW TO W WINDS 15 TO 20 KT. SEAS 6 TO 9 FT IN S TO  
SW SWELL. PERIOD 14 SECONDS.    
THU  
SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW SWELL.  
PERIOD 13 SECONDS.    
THU NIGHT  
SW TO W WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO  
SW SWELL. PERIOD 13 SECONDS.  
 
 
 
PMZ117-141515-  
EAST PANAMA AND COLOMBIA INCLUDING THE GULF OF PANAMA-  
815 PM PDT SAT SEP 13 2025  
   
TONIGHT  
W WINDS 10 KT. SEAS 5 TO 7 FT IN SW SWELL. PERIOD  
14 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH THE  
NIGHT.    
SUN  
GULF OF PANAMA, 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 9 FT IN SW SWELL. PERIOD 19 SECONDS. SCATTERED SHOWERS  
AND ISOLATED TSTMS THROUGH THE DAY.    
SUN NIGHT  
VARIABLE WINDS LESS THAN 5 KT GULF OF PANAMA, AND  
SW TO W 10 TO 15 KT ELSEWHERE. SEAS 6 TO 9 FT IN SW SWELL.  
PERIOD 19 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH  
THE NIGHT.    
MON  
SW TO W WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN SW SWELL.  
PERIOD 17 SECONDS. SCATTERED SHOWERS AND ISOLATED TSTMS THROUGH  
THE DAY.    
MON NIGHT  
W WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN SW SWELL.  
PERIOD 15 SECONDS.    
TUE  
SW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN SW SWELL. PERIOD  
15 SECONDS.    
TUE NIGHT  
SW WINDS 15 TO 20 KT. SEAS 6 TO 9 FT IN SW SWELL.  
PERIOD 15 SECONDS.    
WED  
SW WINDS 15 TO 20 KT. SEAS 6 TO 9 FT IN SW SWELL. PERIOD  
14 SECONDS.    
WED NIGHT  
SW WINDS 15 TO 20 KT. SEAS 6 TO 9 FT IN SW SWELL.  
PERIOD 14 SECONDS.    
THU  
SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN SW SWELL. PERIOD  
13 SECONDS.    
THU NIGHT  
SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN SW SWELL.  
PERIOD 13 SECONDS.  
 
 
 
PMZ119-141515-  
ECUADOR INCLUDING THE GULF OF GUAYAQUIL TO 250 NM OFFSHORE-  
815 PM PDT SAT SEP 13 2025  
   
TONIGHT  
SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN SW SWELL.  
PERIOD 19 SECONDS.    
SUN  
SW TO W WINDS 10 KT GULF OF GUAYAQUIL, AND S TO SW 15 TO  
20 KT ELSEWHERE. SEAS 6 TO 9 FT IN SW SWELL. PERIOD 18 SECONDS.    
SUN NIGHT  
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN SW  
SWELL. PERIOD 17 SECONDS.    
MON  
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN SW SWELL.  
PERIOD 16 SECONDS.    
MON NIGHT  
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN SW  
SWELL. PERIOD 15 SECONDS.    
TUE  
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN SW SWELL.  
PERIOD 15 SECONDS.    
TUE NIGHT  
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO  
SW SWELL. PERIOD 14 SECONDS.    
WED  
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO SW  
SWELL. PERIOD 14 SECONDS.    
WED NIGHT  
S TO SW WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO  
SW SWELL. PERIOD 13 SECONDS.    
THU  
S TO SW WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW  
SWELL. PERIOD 13 SECONDS.    
THU NIGHT  
S TO SW WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
12 SECONDS.  
 
 
 
PMZ121-141515-  
ECUADOR BETWEEN 250 AND 500 NM OFFSHORE-  
815 PM PDT SAT SEP 13 2025  
   
TONIGHT  
S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO SW SWELL.  
PERIOD 19 SECONDS.    
SUN  
S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO SW SWELL.  
PERIOD 18 SECONDS.    
SUN NIGHT  
S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO SW  
SWELL. PERIOD 17 SECONDS.    
MON  
S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO SW SWELL.  
PERIOD 16 SECONDS.    
MON NIGHT  
S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW  
SWELL. PERIOD 15 SECONDS.    
TUE  
S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO SW SWELL.  
PERIOD 14 SECONDS.    
TUE NIGHT  
S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW  
SWELL. PERIOD 14 SECONDS.    
WED  
S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW SWELL.  
PERIOD 13 SECONDS.    
WED NIGHT  
S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW  
SWELL. PERIOD 13 SECONDS.    
THU  
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.  
PERIOD 13 SECONDS.    
THU NIGHT  
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
12 SECONDS.  
 
 
 
PMZ123-141515-  
OFFSHORE GALAPAGOS ISLANDS-  
815 PM PDT SAT SEP 13 2025  
   
TONIGHT  
S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO SW SWELL.  
PERIOD 19 SECONDS.    
SUN  
SE TO S WINDS 10 TO 15 KT. SEAS 7 TO 10 FT IN S TO SW  
SWELL. PERIOD 17 SECONDS.    
SUN NIGHT  
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO  
SW SWELL. PERIOD 16 SECONDS.    
MON  
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT IN S TO SW  
SWELL. PERIOD 16 SECONDS.    
MON NIGHT  
S WINDS 10 KT. SEAS 6 TO 8 FT IN S TO SW SWELL.  
PERIOD 14 SECONDS.    
TUE  
SE TO S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT IN S TO SW  
SWELL. PERIOD 14 SECONDS.    
TUE NIGHT  
S WINDS 10 KT. SEAS 6 TO 8 FT IN S TO SW SWELL.  
PERIOD 14 SECONDS.    
WED  
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT IN S TO SW SWELL.  
PERIOD 13 SECONDS.    
WED NIGHT  
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
13 SECONDS.    
THU  
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 13 SECONDS.    
THU NIGHT  
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
13 SECONDS.  
 
 
 
FORECASTER DELGADO  
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