123
FZPN28 KNHC 091418
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
618 AM PST Tue Dec 9 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.

PMZ101-100230-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
618 AM PST Tue Dec 9 2025

.SYNOPSIS...Mainly gentle winds will prevail N of the monsoon
trough over the next several days, except pulsing to moderate to
fresh in the Gulf of Papagayo, locally strong at times. Gentle
to moderate winds will prevail S of monsoon trough. Moderate N
winds will pulse in the Gulf of Panama starting tonight. Seas
generated by a gale-force gap wind event in the Gulf of
Tehuantepec are expected to spread across the outer offshore
waters of El Salvador and Guatemala today and tonight.
Otherwise, moderate seas in mixed SW and NW swell are expected
over the regional waters through the week and into next weekend.

$$

PMZ111-100230-
Guatemala and El Salvador to 250 nm offshore-
618 AM PST Tue Dec 9 2025

.TODAY...E winds 10 kt. Seas 6 to 8 ft in SW to W swell. Period
14 seconds.
.TONIGHT...SE winds 10 kt in the evening, becoming variable
winds less than 5 kt. Seas 5 to 7 ft in NW swell. Period
13 seconds.
.WED...NE to E winds 10 kt. Seas 4 to 6 ft in NW swell. Period
13 seconds.
.WED NIGHT...N to NE winds 10 kt. Seas 4 to 6 ft in W to NW
swell. Period 14 seconds.
.THU...NE winds 10 kt. Seas 3 to 5 ft. Period 12 seconds.
.THU NIGHT...N to NE winds 10 kt. Seas 3 to 5 ft. Period
12 seconds.
.FRI...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. Period
12 seconds.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Period
11 seconds.
.SAT...NE winds 10 kt. Seas 3 to 5 ft. Period 11 seconds.
.SAT NIGHT...N to NE winds 10 kt. Seas 3 to 5 ft. Period
12 seconds.

$$

PMZ113-100230-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
618 AM PST Tue Dec 9 2025

.TODAY...NE to E winds 15 to 20 kt Offshore Gulf of Papagayo,
and N to NE 10 kt Elsewhere. Seas 3 to 5 ft. Period 14 seconds.
.TONIGHT...NE to E winds 15 to 20 kt Offshore Gulf of Papagayo,
and NE to E 10 to 15 kt Elsewhere. Seas 3 to 5 ft. Period
13 seconds.
.WED...Offshore Gulf of Papagayo, NE to E winds 20 to 25 kt,
diminishing to 15 kt in the afternoon. Elsewhere, NE to E winds
10 to 15 kt. Seas 3 to 5 ft. Period 13 seconds.
.WED NIGHT...NE to E winds 20 kt Offshore Gulf of Papagayo, and
NE 10 to 15 kt Elsewhere. Seas 4 to 6 ft. Period 12 seconds.
.THU...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. Period
11 seconds.
.THU NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft. Period
11 seconds.
.FRI...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. Period
11 seconds.
.FRI NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. Period
11 seconds.
.SAT...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.
.SAT NIGHT...NE to E winds 20 kt Offshore Gulf of Papagayo, and
E 10 to 15 kt Elsewhere. Seas 3 to 5 ft. Period 11 seconds.

$$

PMZ115-100230-
North Costa Rica to West Panama to 250 nm offshore-
618 AM PST Tue Dec 9 2025

.TODAY...Variable winds less than 5 kt Near the Azuero
Peninsula, and SW 10 kt Elsewhere. Seas 3 to 5 ft. Period
14 seconds. Scattered showers through the day.
.TONIGHT...Variable winds less than 5 kt Near the Azuero
Peninsula, and SW to W 10 kt Elsewhere. Seas 2 to 4 ft. Period
13 seconds. Scattered showers.
.WED...Variable winds less than 5 kt. Seas 2 to 4 ft. Period
13 seconds.
.WED NIGHT...Variable winds less than 5 kt, becoming W 10 kt
late. Seas 2 to 4 ft. Period 12 seconds.
.THU...SW to W winds 10 kt. Seas 3 to 5 ft. Period 12 seconds.
.THU NIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in SW swell.
Period 12 seconds.
.FRI...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 12 seconds.
.FRI NIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 11 seconds.
.SAT...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 11 seconds.
.SAT NIGHT...SW to W winds 10 kt. Seas 3 to 5 ft. Period
11 seconds.

$$

PMZ117-100230-
East Panama and Colombia including the Gulf of Panama-
618 AM PST Tue Dec 9 2025

.TODAY...Variable winds less than 5 kt, becoming W 10 kt in the
afternoon. Seas 3 to 5 ft in SW swell. Period 14 seconds.
.TONIGHT...SW to W winds 10 kt. Seas 3 to 5 ft. Period
14 seconds. Scattered showers through the night.
.WED...SW to W winds 10 kt. Seas 3 to 5 ft. Period 13 seconds.
.WED NIGHT...SW to W winds 10 kt. Seas 3 to 5 ft. Period
13 seconds. Scattered showers through the night.
.THU...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
12 seconds.
.THU NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.
.FRI...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.
.FRI NIGHT...SW to W winds 10 to 15 kt. Seas 3 to 5 ft. Period
11 seconds.
.SAT...SW winds 10 to 15 kt. Seas 3 to 5 ft. Period 11 seconds.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
11 seconds.

$$

PMZ119-100230-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
618 AM PST Tue Dec 9 2025

.TODAY...S to SW winds 10 to 15 kt. Seas 4 to 6 ft in W to NW
swell. Period 15 seconds.
.TONIGHT...S to SW winds 10 kt. Seas 3 to 5 ft. Period
14 seconds.
.WED...Gulf of Guayaquil, variable winds less than 5 kt,
becoming W 10 to 15 kt in the afternoon. Elsewhere, S to SW
winds 10 kt. Seas 3 to 5 ft. Period 14 seconds.
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds.
.THU...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
12 seconds.
.THU NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.
.FRI...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.
.FRI NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
11 seconds.
.SAT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
11 seconds.
.SAT NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
11 seconds.

$$

PMZ121-100230-
Ecuador between 250 and 500 nm offshore-
618 AM PST Tue Dec 9 2025

.TODAY...S winds 10 to 15 kt. Seas 3 to 5 ft. Period 14 seconds.
.TONIGHT...SE to S winds 10 kt. Seas 3 to 5 ft. Period
14 seconds.
.WED...SE to S winds 10 to 15 kt. Seas 3 to 5 ft. Period
13 seconds.
.WED NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft in S to SW
swell. Period 12 seconds.
.THU...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds.
.THU NIGHT...S winds 15 kt. Seas 4 to 6 ft. Period 11 seconds.
.FRI...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. Period
11 seconds.
.SAT...S winds 10 kt. Seas 3 to 5 ft. Period 11 seconds.
.SAT NIGHT...S winds 10 kt. Seas 3 to 5 ft. Period 12 seconds.

$$

PMZ123-100230-
Offshore Galapagos Islands-
618 AM PST Tue Dec 9 2025

.TODAY...SE to S winds 10 to 15 kt. Seas 3 to 5 ft. Period
14 seconds.
.TONIGHT...SE to S winds 10 kt. Seas 3 to 5 ft. Period
13 seconds.
.WED...SE to S winds 10 to 15 kt. Seas 3 to 5 ft. Period
13 seconds.
.WED NIGHT...SE to S winds 10 to 15 kt. Seas 3 to 5 ft. Period
12 seconds.
.THU...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.
.THU NIGHT...SE to S winds 10 to 15 kt. Seas 3 to 5 ft. Period
11 seconds.
.FRI...SE to S winds 10 to 15 kt. Seas 3 to 5 ft. Period
12 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. Period
12 seconds.
.SAT...SE to S winds 10 to 15 kt. Seas 3 to 5 ft. Period
12 seconds.
.SAT NIGHT...SE to S winds 10 kt. Seas 3 to 5 ft. Period
12 seconds.

$$

Forecaster AL