597 
FZPN28 KNHC 180318
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
818 PM PDT Fri Apr 17 2026

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.

PMZ101-181530-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
818 PM PDT Fri Apr 17 2026

.SYNOPSIS...Rather tranquil conditions are expected to remain 
over the Central American and the equatorial waters through early
next week.

$$

PMZ111-181530-
Guatemala and El Salvador to 250 nm offshore-
818 PM PDT Fri Apr 17 2026

.TONIGHT...S to SW winds 10 kt in the evening, becoming variable
winds less than 5 kt. Seas 4 to 6 ft in S to SW swell. Period
14 seconds. 
.SAT...N to NE winds 10 kt, shifting to E to SE in the
afternoon. Seas 3 to 5 ft. Period 14 seconds. 
.SAT NIGHT...Variable winds less than 5 kt. Seas 3 to 5 ft in S
to SW swell. Period 16 seconds. 
.SUN...Variable winds less than 5 kt, becoming NE 10 kt in the
afternoon. Seas 3 to 5 ft. Period 15 seconds. 
.SUN NIGHT...NE to E winds 10 kt. Seas 3 to 5 ft. Period
14 seconds. 
.MON...E winds 10 kt. Seas 3 to 5 ft. Period 14 seconds. 
.MON NIGHT...SE winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds. 
.TUE...E winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
16 seconds. 
.TUE NIGHT...SE winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds. 
.WED...E winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
14 seconds. 
.WED NIGHT...S winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 14 seconds. 

$$

PMZ113-181530-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
818 PM PDT Fri Apr 17 2026

.TONIGHT...Offshore Gulf of Papagayo, S winds 10 kt, shifting to
NE to E late. Elsewhere, E to SE winds 10 kt in the
evening, becoming variable winds less than 5 kt. Seas 4 to 6 ft
in S to SW swell. Period 14 seconds. 
.SAT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. Period
14 seconds. 
.SAT NIGHT...Offshore Gulf of Papagayo, S to SW winds 10 kt in
the evening, becoming variable winds less than 5 kt. Elsewhere,
S to SW winds 10 kt. Seas 3 to 5 ft. Period 15 seconds. 
.SUN...Offshore Gulf of Papagayo, NE winds 10 kt in the morning,
becoming variable winds less than 5 kt. Elsewhere, variable
winds less than 5 kt, becoming NE 10 kt in the afternoon. Seas
3 to 5 ft. Period 14 seconds. 
.SUN NIGHT...SW winds 10 kt. Seas 3 to 5 ft. Period 13 seconds. 
.MON...NE to E winds 15 to 20 kt Offshore Gulf of Papagayo, and
NE to E 10 kt Elsewhere. Seas 3 to 5 ft. Period 14 seconds. 
.MON NIGHT...SE winds 10 kt. Seas 3 to 5 ft. Period 15 seconds. 
.TUE...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds. 
.TUE NIGHT...SE to S winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 15 seconds. 
.WED...N to NE winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 14 seconds. 
.WED NIGHT...SW to W winds 10 kt. Seas 3 to 5 ft. Period
13 seconds. 

$$

PMZ115-181530-
North Costa Rica to West Panama to 250 nm offshore-
818 PM PDT Fri Apr 17 2026

.TONIGHT...Near the Azuero Peninsula, variable winds less than
5 kt, becoming NE 10 kt late. Elsewhere, S winds
10 kt. Seas 4 to 6 ft in S to SW swell. Period 15 seconds.
Scattered showers through the night. 
.SAT...SE to S winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 16 seconds. Scattered showers through the day. 
.SAT NIGHT...Variable winds less than 5 kt Near the Azuero
Peninsula, and S 10 kt Elsewhere. Seas 4 to 6 ft in S to SW
swell. Period 15 seconds. Scattered showers and isolated tstms
through the night. 
.SUN...NE winds 10 kt, shifting to NW to N in the afternoon.
Seas 3 to 5 ft. Period 14 seconds. Scattered showers through the
day. 
.SUN NIGHT...Variable winds less than 5 kt. Seas 3 to 5 ft in S
to SW swell. Period 13 seconds. 
.MON...NE to E winds 10 kt. Seas 3 to 5 ft. Period 15 seconds. 
.MON NIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in S
to SW swell. Period 16 seconds. 
.TUE...E to SE winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds. 
.TUE NIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in S
to SW swell. Period 14 seconds. 
.WED...Variable winds less than 5 kt. Seas 3 to 5 ft in S to SW
swell. Period 14 seconds. 
.WED NIGHT...Variable winds less than 5 kt Near the Azuero
Peninsula, and SW 10 kt Elsewhere. Seas 3 to 5 ft. Period
13 seconds. 

$$

PMZ117-181530-
East Panama and Colombia including the Gulf of Panama-
818 PM PDT Fri Apr 17 2026

.TONIGHT...Gulf of Panama, NE winds 10 to 15 kt. Elsewhere, SW
winds 10 kt in the evening, becoming variable winds less than
5 kt. Seas 4 to 6 ft in S to SW swell. Period 15 seconds. 
.SAT...E winds 10 kt, shifting to NW in the afternoon. Seas 4 to
6 ft in S to SW swell. Period 15 seconds. 
.SAT NIGHT...Gulf of Panama, variable winds less than 5 kt,
becoming NE 10 kt late. Elsewhere, variable winds less
than 5 kt. Seas 4 to 6 ft in S to SW swell. Period 15 seconds. 
.SUN...N to NE winds 10 kt Gulf of Panama, and variable less
than 5 kt Elsewhere. Seas 3 to 5 ft. Period 14 seconds. 
.SUN NIGHT...N to NE winds 10 to 15 kt Gulf of Panama, and
variable less than 5 kt Elsewhere. Seas 3 to 5 ft. Period
13 seconds. 
.MON...N to NE winds 10 kt Gulf of Panama, and variable less
than 5 kt Elsewhere. Seas 4 to 6 ft in S to SW swell. Period
14 seconds. 
.MON NIGHT...N to NE winds 10 to 15 kt Gulf of Panama, and
variable less than 5 kt Elsewhere. Seas 4 to 6 ft in S to SW
swell. Period 14 seconds. 
.TUE...N to NE winds 10 to 15 kt Gulf of Panama, and variable
less than 5 kt Elsewhere. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds. 
.TUE NIGHT...N to NE winds 10 kt Gulf of Panama, and variable
less than 5 kt Elsewhere. Seas 4 to 6 ft in S to SW swell.
Period 14 seconds. 
.WED...N to NE winds 10 kt Gulf of Panama, and variable less
than 5 kt Elsewhere. Seas 3 to 5 ft. Period 14 seconds. 
.WED NIGHT...Variable winds less than 5 kt. Seas 3 to 5 ft in S
to SW swell. Period 13 seconds. 

$$

PMZ119-181530-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
818 PM PDT Fri Apr 17 2026

.TONIGHT...S to SW winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds. 
.SAT...Gulf of Guayaquil, variable winds less than 5 kt,
becoming W 10 kt in the afternoon. Elsewhere, S winds 10 kt.
Seas 4 to 6 ft in S to SW swell. Period 14 seconds. 
.SAT NIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in S
to SW swell. Period 14 seconds. 
.SUN...Variable winds less than 5 kt, becoming SW 10 kt in the
afternoon. Seas 4 to 6 ft in S to SW swell. Period 14 seconds. 
.SUN NIGHT...SW winds 10 kt Gulf of Guayaquil, and variable less
than 5 kt Elsewhere. Seas 4 to 6 ft in S to SW swell. Period
14 seconds. 
.MON...S winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period
15 seconds. 
.MON NIGHT...S to SW winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds. 
.TUE...S winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
14 seconds. 
.TUE NIGHT...S to SW winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 14 seconds. 
.WED...S winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
13 seconds. 
.WED NIGHT...S to SW winds 10 kt. Seas 3 to 5 ft. Period
13 seconds. 

$$

PMZ121-181530-
Ecuador between 250 and 500 nm offshore-
818 PM PDT Fri Apr 17 2026

.TONIGHT...Variable winds less than 5 kt. Seas 5 to 7 ft in S to
SW swell. Period 15 seconds. Scattered showers 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 through the day. 
.SAT NIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in S
to SW swell. Period 14 seconds. Scattered showers through the
night. 
.SUN...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW
swell. Period 15 seconds. Scattered showers through the day. 
.SUN NIGHT...Variable winds less than 5 kt. Seas 5 to 7 ft in S
to SW swell. Period 15 seconds. 
.MON...Variable winds less than 5 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds. 
.MON NIGHT...Variable winds less than 5 kt. Seas 5 to 7 ft in S
to SW swell. Period 14 seconds. 
.TUE...SE winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
14 seconds. 
.TUE NIGHT...SE winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 13 seconds. 
.WED...E to SE winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 13 seconds. 
.WED NIGHT...SE winds 10 kt. Seas 3 to 5 ft. Period 13 seconds. 

$$

PMZ123-181530-
Offshore Galapagos Islands-
818 PM PDT Fri Apr 17 2026

.TONIGHT...Elsewhere, S winds 10 kt in the evening, becoming
variable winds less than 5 kt. Lee of Galapagos Islands,
variable winds less than 5 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds. Scattered showers and 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. Scattered showers and isolated
tstms through the night. 
.SUN...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW
swell. Period 17 seconds. Scattered showers through the day. 
.SUN NIGHT...Variable winds less than 5 kt. Seas 5 to 7 ft in S
to SW swell. Period 14 seconds. 
.MON...Variable winds less than 5 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds. 
.MON NIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in S
to SW swell. Period 14 seconds. 
.TUE...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW
swell. Period 14 seconds. 
.TUE NIGHT...E to SE winds 10 kt. Seas 3 to 5 ft. Period
13 seconds. 
.WED...Variable winds less than 5 kt. Seas 3 to 5 ft in S to SW
swell. Period 13 seconds. 
.WED NIGHT...SE winds 10 kt Elsewhere, and variable less than
5 kt Lee of Galapagos Islands. Seas 3 to 5 ft in S to SW swell.
Period 12 seconds. 

$$

Forecaster KRV