964   
FZPN28 KNHC 181515  
OFFPZ8  
  
OFFSHORE WATERS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
715 AM PST THU DEC 18 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.  
  
PMZ101-190315-  
SYNOPSIS FOR THE E PACIFIC WITHIN 250 NM OF CENTRAL AMERICA,  
COLOMBIA, AND WITHIN 750 NM OF ECUADOR  
715 AM PST THU DEC 18 2025  
   
SYNOPSIS  
A LIGHT PRESSURE GRADIENT WILL CONTINUE TO FORCE   
MODERATE OR WEAKER WINDS ACROSS FORECAST WATERS THROUGH FRI.   
BUILDING HIGH PRESSURE OVER CENTRAL AMERICA WILL DRIVE FRESH TO   
LOCALLY STRONG NE WINDS MAINLY DURING LATE NIGHT/EARLY MORNING   
HOURS OVER THE GULF OF PAPAGAYO REGION FROM FRI EVENING THROUGH   
AT LEAST EARLY NEXT WEEK. ELSEWHERE, WINDS AND SEAS WILL BE   
QUIESCENT.  
  
  
  
PMZ111-190315-  
GUATEMALA AND EL SALVADOR TO 250 NM OFFSHORE-  
715 AM PST THU DEC 18 2025  
   
TODAY  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD 14 SECONDS.  
SCATTERED SHOWERS THROUGH THE DAY.    
TONIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD  
13 SECONDS. SCATTERED SHOWERS THROUGH THE NIGHT.    
FRI  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.  
SCATTERED SHOWERS THROUGH THE DAY.    
FRI NIGHT  
NE TO E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD  
12 SECONDS.    
SAT  
NE TO E WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 11 SECONDS.    
SAT NIGHT  
NE WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 12 SECONDS.    
SUN  
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD 12 SECONDS.    
SUN NIGHT  
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. PERIOD  
12 SECONDS.    
MON  
NE TO E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD  
12 SECONDS.    
MON NIGHT  
N TO NE WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD  
11 SECONDS.   
  
  
  
PMZ113-190315-  
EL SALVADOR TO NORTH COSTA RICA INCLUDING THE GULFS OF FONSECA  
AND PAPAGAYO-  
715 AM PST THU DEC 18 2025  
   
TODAY  
SE TO S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD  
14 SECONDS. SCATTERED SHOWERS THROUGH THE DAY.    
TONIGHT  
SW WINDS 10 KT. SEAS 2 TO 4 FT. PERIOD 13 SECONDS.    
FRI  
NE TO E WINDS 15 TO 20 KT OFFSHORE GULF OF PAPAGAYO, AND  
N TO NE 10 TO 15 KT ELSEWHERE. SEAS 3 TO 5 FT. PERIOD  
13 SECONDS.    
FRI NIGHT  
N TO NE WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. PERIOD  
12 SECONDS.    
SAT  
NE TO E WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. PERIOD  
11 SECONDS.    
SAT NIGHT  
NE TO E WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. PERIOD  
10 SECONDS.    
SUN  
NE TO E WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. PERIOD  
10 SECONDS.    
SUN NIGHT  
NE TO E WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. PERIOD  
12 SECONDS.    
MON  
NE TO E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT. PERIOD  
11 SECONDS.    
MON NIGHT  
NE TO E WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. PERIOD  
11 SECONDS.   
  
  
  
PMZ115-190315-  
NORTH COSTA RICA TO WEST PANAMA TO 250 NM OFFSHORE-  
715 AM PST THU DEC 18 2025  
   
TODAY  
NEAR THE AZUERO PENINSULA, VARIABLE WINDS LESS THAN  
5 KT, BECOMING SW TO W 10 KT IN THE AFTERNOON. ELSEWHERE, SW TO  
W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD 14 SECONDS.  
SCATTERED SHOWERS THROUGH THE DAY.    
TONIGHT  
W TO NW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD  
13 SECONDS. SCATTERED SHOWERS THROUGH THE NIGHT.    
FRI  
VARIABLE WINDS LESS THAN 5 KT NEAR THE AZUERO PENINSULA,  
AND W TO NW 10 KT ELSEWHERE. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.  
SCATTERED SHOWERS THROUGH THE DAY.    
FRI NIGHT  
VARIABLE WINDS LESS THAN 5 KT NEAR THE AZUERO  
PENINSULA, AND W 10 KT ELSEWHERE. SEAS 3 TO 5 FT. PERIOD  
12 SECONDS. SCATTERED SHOWERS THROUGH THE NIGHT.    
SAT  
NW TO N WINDS 10 KT NEAR THE AZUERO PENINSULA, AND  
VARIABLE LESS THAN 5 KT ELSEWHERE. SEAS 3 TO 5 FT IN S SWELL.  
PERIOD 11 SECONDS.    
SAT NIGHT  
NW WINDS 10 KT NEAR THE AZUERO PENINSULA, AND  
VARIABLE LESS THAN 5 KT ELSEWHERE. SEAS 3 TO 5 FT IN S SWELL.  
PERIOD 11 SECONDS.    
SUN  
NW TO N WINDS 10 KT NEAR THE AZUERO PENINSULA, AND  
VARIABLE LESS THAN 5 KT ELSEWHERE. SEAS 2 TO 4 FT. PERIOD  
11 SECONDS.    
SUN NIGHT  
NW TO N WINDS 10 KT NEAR THE AZUERO PENINSULA, AND  
VARIABLE LESS THAN 5 KT ELSEWHERE. SEAS 2 TO 4 FT. PERIOD  
10 SECONDS.    
MON  
W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 12 SECONDS.    
MON NIGHT  
W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 11 SECONDS.   
  
  
  
PMZ117-190315-  
EAST PANAMA AND COLOMBIA INCLUDING THE GULF OF PANAMA-  
715 AM PST THU DEC 18 2025  
   
TODAY  
SW TO W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 14 SECONDS.  
SCATTERED SHOWERS THROUGH THE DAY.    
TONIGHT  
W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.  
SCATTERED SHOWERS THROUGH THE NIGHT.    
FRI  
W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.  
SCATTERED SHOWERS THROUGH THE DAY.    
FRI NIGHT  
SW TO W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD  
12 SECONDS. SCATTERED SHOWERS THROUGH THE NIGHT.    
SAT  
SW TO W WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 11 SECONDS.    
SAT NIGHT  
SW TO W WINDS 10 KT. SEAS 2 TO 4 FT. PERIOD  
11 SECONDS.    
SUN  
SW TO W WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. PERIOD  
10 SECONDS.    
SUN NIGHT  
W WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. PERIOD  
12 SECONDS.    
MON  
SW TO W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD  
12 SECONDS.    
MON NIGHT  
W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD  
12 SECONDS.   
  
  
  
PMZ119-190315-  
ECUADOR INCLUDING THE GULF OF GUAYAQUIL TO 250 NM OFFSHORE-  
715 AM PST THU DEC 18 2025  
   
TODAY  
GULF OF GUAYAQUIL, VARIABLE WINDS LESS THAN 5 KT,  
BECOMING W 10 TO 15 KT IN THE AFTERNOON. ELSEWHERE, SW WINDS  
10 KT. SEAS 3 TO 5 FT. PERIOD 14 SECONDS.    
TONIGHT  
SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.    
FRI  
S TO SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 12 SECONDS.    
FRI NIGHT  
S TO SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD  
12 SECONDS.    
SAT  
S TO SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 11 SECONDS.    
SAT NIGHT  
S TO SW WINDS 10 KT. SEAS 2 TO 4 FT. PERIOD  
10 SECONDS.    
SUN  
S TO SW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. PERIOD  
11 SECONDS.    
SUN NIGHT  
S TO SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD  
11 SECONDS.    
MON  
S TO SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD  
13 SECONDS.    
MON NIGHT  
S TO SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. PERIOD  
14 SECONDS.   
  
  
  
PMZ121-190315-  
ECUADOR BETWEEN 250 AND 500 NM OFFSHORE-  
715 AM PST THU DEC 18 2025  
   
TODAY  
S TO SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 14 SECONDS.   
TONIGHT  
S TO SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD  
13 SECONDS.    
FRI  
S TO SW WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.    
FRI NIGHT  
S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 12 SECONDS.    
SAT  
S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 10 SECONDS.    
SAT NIGHT  
S WINDS 10 KT. SEAS 2 TO 4 FT. PERIOD 10 SECONDS.    
SUN  
S WINDS 10 KT. SEAS 2 TO 4 FT. PERIOD 11 SECONDS.    
SUN NIGHT  
S WINDS 10 KT. SEAS 2 TO 4 FT. PERIOD 11 SECONDS.    
MON  
S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 12 SECONDS.    
MON NIGHT  
S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.   
  
  
  
PMZ123-190315-  
OFFSHORE GALAPAGOS ISLANDS-  
715 AM PST THU DEC 18 2025  
   
TODAY  
S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 14 SECONDS.    
TONIGHT  
S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.    
FRI  
ELSEWHERE, SE TO S WINDS 10 KT. LEE OF GALAPAGOS ISLANDS,  
S WINDS 10 KT IN THE MORNING, BECOMING VARIABLE WINDS LESS THAN  
5 KT. SEAS 3 TO 5 FT. PERIOD 13 SECONDS.    
FRI NIGHT  
SE TO S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD  
12 SECONDS.    
SAT  
SE TO S WINDS 10 KT. SEAS 3 TO 5 FT. PERIOD 11 SECONDS.    
SAT NIGHT  
SE TO S WINDS 10 KT. SEAS 2 TO 4 FT. PERIOD  
11 SECONDS.    
SUN  
S WINDS 10 KT. SEAS 2 TO 4 FT. PERIOD 13 SECONDS.    
SUN NIGHT  
SE TO S WINDS 10 KT. SEAS 2 TO 4 FT. PERIOD  
12 SECONDS.    
MON  
SE TO S WINDS 10 KT. SEAS 2 TO 4 FT. PERIOD 12 SECONDS.    
MON NIGHT  
SE TO S WINDS 10 KT. SEAS 2 TO 4 FT. PERIOD  
12 SECONDS.   
  
  
  
FORECASTER LANDSEA  
 
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