000
FZPN28 KNHC 180925
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
225 AM PDT Sun Oct 18 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.

PMZ101-182130-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
225 AM PDT Sun Oct 18 2026

.SYNOPSIS...A strong gap wind event in the Gulf of Tehuantepec 
will support fresh to strong N winds and very rough seas across 
the offshore Guatemala waters into tonight, with rough seas then 
continuing through Tue night. Large SW swell will gradually decay
south of the equator into tonight. Elsewhere, moderate or weaker
winds and moderate seas will prevail during the next several 
days. Looking ahead, winds may pulse to fresh to locally strong 
in the Gulf of Papagayo starting midweek into late this week. 

$$

PMZ111-182130-
Guatemala and El Salvador to 250 nm offshore-
225 AM PDT Sun Oct 18 2026

.TODAY...NE to E winds 15 to 20 kt. Seas 10 to 16 ft in NW
swell. Period 16 seconds. Scattered showers and isolated tstms
through the day. 
.TONIGHT...NE to E winds 10 to 15 kt. Seas 9 to 14 ft in NW
swell. Period 15 seconds. Scattered showers and isolated tstms
through the night. 
.MON...E winds 15 to 20 kt. Seas 8 to 12 ft in NW swell. Period
15 seconds. Scattered tstms. 
.MON NIGHT...E winds 10 to 15 kt. Seas 7 to 10 ft in NW swell.
Period 14 seconds. Scattered tstms. 
.TUE...E to SE winds 15 to 20 kt. Seas 7 to 10 ft in W to NW
swell. Period 12 seconds. 
.TUE NIGHT...E to SE winds 15 to 20 kt. Seas 6 to 9 ft in SW
swell. Period 13 seconds. 
.WED...E to SE winds 15 to 20 kt. Seas 6 to 8 ft in S to SW
swell. Period 12 seconds. 
.WED NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 12 seconds. 
.THU...E to SE winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 13 seconds. 
.THU NIGHT...Variable winds less than 5 kt. Seas 5 to 7 ft in S
to SW swell. Period 13 seconds. 

$$

PMZ113-182130-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
225 AM PDT Sun Oct 18 2026

.TODAY...E winds 10 to 15 kt. Seas 6 to 9 ft in SW swell. Period
16 seconds. Scattered showers and isolated tstms through the
day. 
.TONIGHT...E to SE winds 10 to 15 kt. Seas 6 to 9 ft in W to NW
swell. Period 15 seconds. Scattered showers and isolated tstms. 
.MON...SE winds 10 to 15 kt. Seas 6 to 8 ft in W to NW swell.
Period 15 seconds. Scattered showers and isolated tstms through
the day. 
.MON NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft in W swell.
Period 15 seconds. Scattered showers and isolated tstms. 
.TUE...SE winds 10 to 15 kt. Seas 5 to 7 ft in SW swell. Period
14 seconds. 
.TUE NIGHT...NE to E winds 15 to 20 kt Offshore Gulf of
Papagayo, and SE to S 10 kt Elsewhere. Seas 4 to 6 ft. Period
14 seconds. 
.WED...E winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. 
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Period
12 seconds. 
.THU...NE to E winds 15 to 20 kt. Seas 5 to 7 ft. Period
15 seconds. 
.THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds. 

$$

PMZ115-182130-
North Costa Rica to West Panama to 250 nm offshore-
225 AM PDT Sun Oct 18 2026

.TODAY...S to SW winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 16 seconds. Scattered showers and isolated tstms through
the day. 
.TONIGHT...SW winds 10 kt. Seas 5 to 7 ft in SW swell. Period
15 seconds. Scattered showers and isolated tstms. 
.MON...S to SW winds 10 kt. Seas 5 to 7 ft in W swell. Period
15 seconds. Scattered showers and isolated tstms through the
day. 
.MON NIGHT...Variable winds less than 5 kt, becoming W 10 kt
late. Seas 5 to 7 ft in W to NW swell. Period
14 seconds. Scattered showers and isolated tstms through the
night. 
.TUE...SW to W winds 10 kt. Seas 5 to 7 ft in W swell. Period
12 seconds. 
.TUE NIGHT...W winds 10 kt. Seas 5 to 7 ft in SW swell. Period
12 seconds. 
.WED...SW to W winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 12 seconds. 
.WED NIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 13 seconds. 
.THU...Variable winds less than 5 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 15 seconds. 

$$

PMZ117-182130-
East Panama and Colombia including the Gulf of Panama-
225 AM PDT Sun Oct 18 2026

.TODAY...Variable winds less than 5 kt. Seas 5 to 7 ft in SW
swell. Period 16 seconds. Isolated tstms through the day. 
.TONIGHT...Variable winds less than 5 kt. Seas 5 to 7 ft in SW
swell. Period 16 seconds. Scattered showers and isolated tstms
through the night. 
.MON...S winds 10 kt, shifting to W in the afternoon. Seas 4 to
6 ft in SW swell. Period 15 seconds. Scattered showers and
isolated tstms through the day. 
.MON NIGHT...W winds 10 kt. Seas 4 to 6 ft in SW swell. Period
14 seconds. Scattered showers and isolated tstms. 
.TUE...SW to W winds 10 kt. Seas 4 to 6 ft in SW swell. Period
14 seconds. 
.TUE NIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in SW swell.
Period 14 seconds. 
.WED...SW winds 10 kt. Seas 4 to 6 ft in SW swell. Period
13 seconds. 
.WED NIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in SW swell.
Period 13 seconds. 
.THU...SW winds 10 kt. Seas 4 to 6 ft in SW swell. Period
13 seconds. 
.THU NIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in SW swell.
Period 13 seconds. 

$$

PMZ119-182130-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
225 AM PDT Sun Oct 18 2026

.TODAY...S to SW winds 10 kt. Seas 6 to 8 ft in SW swell. Period
15 seconds. 
.TONIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW
swell. Period 15 seconds. 
.MON...S to SW winds 10 kt. Seas 4 to 6 ft in SW swell. Period
14 seconds. 
.MON NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft in SW
swell. Period 14 seconds. 
.TUE...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 13 seconds. 
.TUE NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW
swell. Period 13 seconds. 
.WED...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 14 seconds. 
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW
swell. Period 14 seconds. 
.THU...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in SW swell.
Period 15 seconds. 
.THU NIGHT...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in SW
swell. Period 14 seconds. 

$$

PMZ121-182130-
Ecuador between 250 and 500 nm offshore-
225 AM PDT Sun Oct 18 2026

.TODAY...S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 15 seconds. 
.TONIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 14 seconds. 
.MON...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 14 seconds. 
.MON NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 14 seconds. 
.TUE...S winds 15 kt. Seas 5 to 7 ft in SW swell. Period
13 seconds. 
.TUE NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 13 seconds. 
.WED...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds. 
.WED NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds. 
.THU...S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 15 seconds. 
.THU NIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 14 seconds. 

$$

PMZ123-182130-
Offshore Galapagos Islands-
225 AM PDT Sun Oct 18 2026

.TODAY...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in SW swell.
Period 15 seconds. 
.TONIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft in SW swell.
Period 14 seconds. 
.MON...S winds 10 to 15 kt. Seas 6 to 8 ft in SW to W swell.
Period 14 seconds. 
.MON NIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft in W swell.
Period 14 seconds. 
.TUE...S winds 15 kt. Seas 6 to 8 ft in SW to W swell. Period
12 seconds. 
.TUE NIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft in SW swell.
Period 13 seconds. 
.WED...S winds 10 to 15 kt. Seas 6 to 8 ft in SW swell. Period
13 seconds. 
.WED NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in SW
swell. Period 13 seconds. 
.THU...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 14 seconds. 
.THU NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 14 seconds. 

$$

Forecaster Delgado