583
FZPN28 KNHC 182105
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
205 PM PDT Sat Oct 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.

PMZ101-190915-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
205 PM PDT Sat Oct 18 2025

.SYNOPSIS...Moderate SW winds and moderate seas will occur south
of the monsoon trough into early next week, with gentle winds
and moderate seas prevailing to the north.

$$

PMZ111-190915-
Guatemala and El Salvador to 250 nm offshore-
205 PM PDT Sat Oct 18 2025

.TONIGHT...W winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds. Scattered showers and isolated tstms.
.SUN...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. Scattered showers
and isolated tstms.
.SUN NIGHT...NE winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 14 seconds. Scattered showers and isolated tstms through
the night.
.MON...NE to E winds 10 kt, shifting to S to SW in the
afternoon. Seas 4 to 6 ft in S to SW swell. Period 14 seconds.
Scattered showers and isolated tstms through the day.
.MON NIGHT...Variable winds less than 5 kt. Seas 3 to 5 ft in S
to SW swell. Period 13 seconds.
.TUE...Variable winds less than 5 kt. Seas 3 to 5 ft in S to SW
swell. Period 13 seconds.
.TUE NIGHT...Variable winds less than 5 kt. Seas 3 to 5 ft in S
to SW swell. Period 15 seconds.
.WED...Variable winds less than 5 kt. Seas 3 to 5 ft in S to SW
swell. Period 15 seconds.
.WED NIGHT...Variable winds less than 5 kt. Seas 3 to 5 ft in SW
swell. Period 15 seconds.
.THU...Variable winds less than 5 kt. Seas 4 to 6 ft in W to NW
swell. Period 14 seconds.
.THU NIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in NW
swell. Period 14 seconds.

$$

PMZ113-190915-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
205 PM PDT Sat Oct 18 2025

.TONIGHT...W winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds. Scattered showers and isolated tstms through
the night.
.SUN...SW winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
15 seconds. Scattered showers and isolated tstms through the
day.
.SUN NIGHT...Variable winds less than 5 kt Offshore Gulf of
Papagayo, and SW to W 10 kt Elsewhere. Seas 4 to 6 ft in S to SW
swell. Period 14 seconds. Scattered showers and isolated tstms
through the night.
.MON...Variable winds less than 5 kt Offshore Gulf of Papagayo,
and W 10 kt Elsewhere. Seas 3 to 5 ft. Period 14 seconds.
.MON NIGHT...N to NE winds 15 to 20 kt Offshore Gulf of
Papagayo, and W to NW 10 kt Elsewhere. Seas 3 to 5 ft. Period
13 seconds.
.TUE...NW to N winds 10 kt. Seas 3 to 5 ft. Period 14 seconds.
.TUE NIGHT...W to NW winds 10 kt. Seas 3 to 5 ft. Period
15 seconds.
.WED...NW to N winds 10 kt. Seas 3 to 5 ft. Period 15 seconds.
.WED NIGHT...NE to E winds 10 kt Offshore Gulf of Papagayo, and
variable less than 5 kt Elsewhere. Seas 3 to 5 ft in S to SW
swell. Period 15 seconds.
.THU...NE to E winds 10 kt Offshore Gulf of Papagayo, and
variable less than 5 kt Elsewhere. Seas 3 to 5 ft. Period
14 seconds.
.THU NIGHT...Variable winds less than 5 kt Offshore Gulf of
Papagayo, and SW to W 10 kt Elsewhere. Seas 3 to 5 ft in SW
swell. Period 14 seconds.

$$

PMZ115-190915-
North Costa Rica to West Panama to 250 nm offshore-
205 PM PDT Sat Oct 18 2025

.TONIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds. Scattered showers and isolated tstms through
the night.
.SUN...SW to W winds 10 to 15 kt. Seas 4 to 6 ft in S to SW
swell. Period 15 seconds. Scattered showers and isolated tstms
through the day.
.SUN NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds. Scattered showers and isolated tstms through the
night.
.MON...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds. Scattered showers and isolated tstms through the
day.
.MON NIGHT...W winds 10 to 15 kt. Seas 3 to 5 ft. Period
13 seconds.
.TUE...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds.
.TUE NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds.
.WED...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds.
.WED NIGHT...SW to W winds 10 to 15 kt. Seas 3 to 5 ft. Period
13 seconds.
.THU...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
12 seconds.

$$

PMZ117-190915-
East Panama and Colombia including the Gulf of Panama-
205 PM PDT Sat Oct 18 2025

.TONIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in SW swell.
Period 15 seconds. Scattered tstms through the night.
.SUN...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds. Scattered tstms through the day.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds. Scattered showers and isolated tstms through the
night.
.MON...SW winds 10 to 15 kt. Seas 4 to 6 ft in SW swell. Period
14 seconds. Scattered showers and isolated tstms through the
day.
.MON NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
12 seconds.
.TUE...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds.
.TUE NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds.
.WED...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds.
.WED NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
13 seconds.
.THU...SW winds 10 to 15 kt. Seas 3 to 5 ft. Period 14 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
14 seconds.

$$

PMZ119-190915-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
205 PM PDT Sat Oct 18 2025

.TONIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft in SW
swell. Period 15 seconds.
.SUN...SW winds 10 to 15 kt. Seas 4 to 6 ft in SW swell. Period
14 seconds.
.SUN NIGHT...S to SW winds 10 kt. Seas 4 to 6 ft in SW swell.
Period 13 seconds.
.MON...SW winds 10 kt. Seas 3 to 5 ft. Period 13 seconds.
.MON NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
14 seconds.
.TUE...SW winds 10 to 15 kt. Seas 3 to 5 ft. Period 14 seconds.
.TUE NIGHT...S to SW winds 10 kt. Seas 3 to 5 ft. Period
16 seconds.
.WED...SW winds 10 kt. Seas 3 to 5 ft. Period 15 seconds.
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
14 seconds.
.THU...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
14 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
14 seconds.

$$

PMZ121-190915-
Ecuador between 250 and 500 nm offshore-
205 PM PDT Sat Oct 18 2025

.TONIGHT...S winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 14 seconds.
.SUN...S winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
14 seconds.
.SUN NIGHT...S winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 13 seconds.
.MON...S winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
13 seconds.
.MON NIGHT...S to SW winds 10 kt. Seas 3 to 5 ft. Period
14 seconds.
.TUE...S winds 10 to 15 kt. Seas 3 to 5 ft. Period 16 seconds.
.TUE NIGHT...S to SW winds 10 kt. Seas 3 to 5 ft. Period
15 seconds.
.WED...S winds 10 kt. Seas 3 to 5 ft. Period 14 seconds.
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
14 seconds.
.THU...S winds 10 to 15 kt. Seas 3 to 5 ft. Period 14 seconds.
.THU NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
14 seconds.

$$

PMZ123-190915-
Offshore Galapagos Islands-
205 PM PDT Sat Oct 18 2025

.TONIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft in S to SW
swell. Period 18 seconds.
.SUN...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
17 seconds.
.SUN NIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
17 seconds.
.MON...SE to S winds 10 to 15 kt. Seas 4 to 6 ft in SW swell.
Period 17 seconds.
.MON NIGHT...S winds 10 kt. Seas 4 to 6 ft in SW swell. Period
15 seconds.
.TUE...S winds 10 kt. Seas 4 to 6 ft in SW swell. Period
15 seconds.
.TUE NIGHT...S winds 10 kt. Seas 3 to 5 ft. Period 15 seconds.
.WED...S winds 10 kt. Seas 3 to 5 ft. Period 14 seconds.
.WED NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. Period
15 seconds.
.THU...S winds 10 to 15 kt. Seas 3 to 5 ft. Period 15 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. Period
15 seconds.

$$

Forecaster ERA