424
FZPN28 KNHC 182121
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
121 PM PST Tue Nov 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.

PMZ101-190930-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
121 PM PST Tue Nov 18 2025

.SYNOPSIS...A weak pressure gradient is forecast to prevail
across the region, thus supporting moderate or lighter winds and
slight to moderate seas through at least midweek. In the Gulf of
Papagayo, gentle to moderate NE to E winds and slight to
moderate seas are expected through Sat, with pulsing fresh winds
at night. Moderate seas are forecast to develop with these winds.

$$

PMZ111-190930-
Guatemala and El Salvador to 250 nm offshore-
121 PM PST Tue Nov 18 2025

.TONIGHT...NE to E winds 10 kt. Seas 3 to 5 ft. Period
15 seconds. Scattered showers.
.WED...E winds 10 to 15 kt. Seas 3 to 5 ft. Period 15 seconds.
.WED NIGHT...NE to E winds 10 kt. Seas 3 to 5 ft. Period
14 seconds.
.THU...NE winds 10 kt. Seas 3 to 5 ft. Period 15 seconds.
.THU NIGHT...N winds 10 kt. Seas 3 to 5 ft. Period 14 seconds.
.FRI...N to NE winds 10 kt. Seas 3 to 5 ft. Period 15 seconds.
.FRI NIGHT...N to NE winds 10 kt. Seas 3 to 5 ft. Period
14 seconds.
.SAT...NE winds 10 kt. Seas 4 to 6 ft in SW swell. Period
13 seconds.
.SAT NIGHT...N to NE winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 13 seconds.
.SUN...NE winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
13 seconds.
.SUN NIGHT...NE winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 13 seconds.

$$

PMZ113-190930-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
121 PM PST Tue Nov 18 2025

.TONIGHT...NE to E winds 15 to 20 kt Offshore Gulf of Papagayo,
and E 10 to 15 kt Elsewhere. Seas 3 to 5 ft. Period 15 seconds.
.WED...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. Period
15 seconds.
.WED NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. Period
14 seconds.
.THU...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.THU NIGHT...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.
.FRI...NE winds 10 to 15 kt. Seas 4 to 6 ft. Period 15 seconds.
.FRI NIGHT...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.SAT...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds.
.SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds.
.SUN...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds.
.SUN NIGHT...NE to E winds 20 kt Offshore Gulf of Papagayo, and
NE to E 10 to 15 kt Elsewhere. Seas 3 to 5 ft. Period
13 seconds.

$$

PMZ115-190930-
North Costa Rica to West Panama to 250 nm offshore-
121 PM PST Tue Nov 18 2025

.TONIGHT...Variable winds less than 5 kt, becoming SW 10 kt
late. Seas 2 to 4 ft. Period 15 seconds. Scattered
showers through the night.
.WED...Variable winds less than 5 kt, becoming SW to W 10 kt in
the afternoon. Seas 3 to 5 ft in S to SW swell. Period
15 seconds. Scattered showers through the day.
.WED NIGHT...SW to W winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds. Scattered showers through the night.
.THU...SW to W winds 10 kt. Seas 5 to 7 ft in S swell. Period
14 seconds. Scattered showers through the day.
.THU NIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in S swell.
Period 14 seconds.
.FRI...W winds 10 kt. Seas 4 to 6 ft in S swell. Period
14 seconds.
.FRI NIGHT...Variable winds less than 5 kt. Seas 3 to 5 ft in S
swell. Period 14 seconds.
.SAT...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW
swell. Period 14 seconds.
.SAT NIGHT...Variable winds less than 5 kt Near the Azuero
Peninsula, and SW to W 10 kt Elsewhere. Seas 4 to 6 ft in S to
SW swell. Period 14 seconds.
.SUN...Variable winds less than 5 kt Near the Azuero Peninsula,
and SW to W 10 kt Elsewhere. Seas 4 to 6 ft in S to SW swell.
Period 13 seconds.
.SUN NIGHT...W winds 10 kt. Seas 3 to 5 ft. Period 13 seconds.

$$

PMZ117-190930-
East Panama and Colombia including the Gulf of Panama-
121 PM PST Tue Nov 18 2025

.TONIGHT...W winds 10 to 15 kt. Seas 3 to 5 ft. Period
15 seconds. Scattered showers through the night.
.WED...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds. Scattered showers and isolated tstms through the
day.
.WED NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft. Period
15 seconds. Scattered showers and isolated tstms through the
night.
.THU...SW to W winds 10 to 15 kt. Seas 5 to 7 ft. Period
14 seconds. Scattered showers and isolated tstms through the
day.
.THU NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.
.FRI...SW winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
13 seconds.
.FRI NIGHT...SW winds 10 kt. Seas 3 to 5 ft. Period 14 seconds.
.SAT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds.
.SAT NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.SUN...SW to W winds 10 kt. Seas 4 to 6 ft in SW swell. Period
14 seconds.
.SUN NIGHT...SW to W winds 10 to 15 kt. Seas 3 to 5 ft. Period
13 seconds.

$$

PMZ119-190930-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
121 PM PST Tue Nov 18 2025

.TONIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.WED...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW
swell. Period 16 seconds.
.THU...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.THU NIGHT...S to SW winds 10 kt. Seas 4 to 6 ft in W swell.
Period 14 seconds.
.FRI...S to SW winds 10 kt. Seas 4 to 6 ft in W to NW swell.
Period 13 seconds.
.FRI NIGHT...S to SW winds 10 kt. Seas 3 to 5 ft. Period
14 seconds.
.SAT...S to SW winds 10 kt. Seas 4 to 6 ft in SW swell. Period
14 seconds.
.SAT NIGHT...S to SW winds 10 kt. Seas 4 to 6 ft in SW swell.
Period 13 seconds.
.SUN...S to SW winds 10 kt. Seas 3 to 5 ft. Period 12 seconds.
.SUN NIGHT...S to SW winds 10 kt. Seas 3 to 5 ft. Period
12 seconds.

$$

PMZ121-190930-
Ecuador between 250 and 500 nm offshore-
121 PM PST Tue Nov 18 2025

.TONIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.WED...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 15 seconds.
.WED NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in W to NW
swell. Period 15 seconds.
.THU...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 15 seconds.
.THU NIGHT...S winds 10 kt. Seas 4 to 6 ft in W to NW swell.
Period 13 seconds.
.FRI...S winds 10 kt. Seas 4 to 6 ft in W to NW swell. Period
13 seconds.
.FRI NIGHT...S winds 10 kt. Seas 4 to 6 ft in SW swell. Period
14 seconds.
.SAT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds.
.SAT NIGHT...S winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 13 seconds.
.SUN...S winds 10 kt. Seas 3 to 5 ft. Period 12 seconds.
.SUN NIGHT...S winds 10 kt. Seas 3 to 5 ft. Period 12 seconds.

$$

PMZ123-190930-
Offshore Galapagos Islands-
121 PM PST Tue Nov 18 2025

.TONIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds.
.WED...SE to S winds 10 to 15 kt. Seas 5 to 7 ft. Period
16 seconds.
.WED NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in NW swell.
Period 15 seconds.
.THU...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.THU NIGHT...SE to S winds 10 kt. Seas 4 to 6 ft in NW swell.
Period 13 seconds.
.FRI...SE to S winds 10 kt. Seas 4 to 6 ft in W to NW swell.
Period 13 seconds.
.FRI NIGHT...SE to S winds 10 kt. Seas 4 to 6 ft in SW to W
swell. Period 13 seconds.
.SAT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.SAT NIGHT...SE to S winds 10 kt. Seas 3 to 5 ft. Period
13 seconds.
.SUN...SE to S winds 10 to 15 kt. Seas 3 to 5 ft. Period
12 seconds.
.SUN NIGHT...SE to S winds 10 kt. Seas 3 to 5 ft. Period
12 seconds.

$$

Forecaster ERA