831
FZPN28 KNHC 291512
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
812 AM PDT Tue Sep 29 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.

PMZ101-300315-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
812 AM PDT Tue Sep 29 2026

.SYNOPSIS...A rather light pressure gradient will maintain
moderate or weaker winds over the offshore waters along with
mostly moderate seas through the period.

$$

PMZ111-300315-
Guatemala and El Salvador to 250 nm offshore-
812 AM PDT Tue Sep 29 2026

.TODAY...Variable winds less than 5 kt, becoming W 10 kt in the
afternoon. Seas 5 to 7 ft in W swell. Period 12 seconds.
.TONIGHT...W to NW winds 10 kt. Seas 4 to 6 ft in W swell.
Period 11 seconds. Scattered showers and isolated tstms through
the night.
.WED...NW winds 10 kt. Seas 4 to 6 ft in W swell. Period
11 seconds. Scattered showers and isolated tstms through the
day.
.WED NIGHT...W to NW winds 10 to 15 kt. Seas 4 to 6 ft in W to
NW swell. Period 15 seconds. Scattered showers and isolated
tstms through the night.
.THU...W winds 10 to 15 kt. Seas 5 to 7 ft in W to NW swell.
Period 12 seconds.
.THU NIGHT...W winds 10 to 15 kt. Seas 5 to 7 ft in W to NW
swell. Period 12 seconds.
.FRI...W winds 10 kt. Seas 5 to 7 ft in W to NW swell. Period
11 seconds.
.FRI NIGHT...W winds 10 kt. Seas 5 to 7 ft in W to NW swell.
Period 12 seconds.
.SAT...W winds 10 to 15 kt. Seas 5 to 7 ft in W to NW swell.
Period 12 seconds.
.SAT NIGHT...W winds 10 kt. Seas 5 to 7 ft in W to NW swell.
Period 12 seconds.

$$

PMZ113-300315-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
812 AM PDT Tue Sep 29 2026

.TODAY...N winds 10 kt in the morning, becoming variable winds
less than 5 kt. Seas 4 to 6 ft in W swell. Period 13 seconds.
.TONIGHT...NW to N winds 10 kt. Seas 4 to 6 ft in W to NW swell.
Period 11 seconds. Scattered showers and isolated tstms through
the night.
.WED...Offshore Gulf of Papagayo, NE winds 10 kt in the morning,
becoming variable winds less than 5 kt. Elsewhere, NW to N winds
10 kt. Seas 3 to 5 ft. Period 12 seconds. Scattered showers and
isolated tstms through the day.
.WED NIGHT...NW winds 10 kt. Seas 3 to 5 ft. Period 13 seconds.
Scattered showers and isolated tstms through the night.
.THU...W to NW winds 10 kt. Seas 3 to 5 ft. Period 11 seconds.
.THU NIGHT...W winds 10 kt. Seas 3 to 5 ft. Period 10 seconds.
.FRI...Variable winds less than 5 kt Offshore Gulf of Papagayo,
and W 10 kt Elsewhere. Seas 4 to 6 ft in W to NW swell. Period
11 seconds.
.FRI NIGHT...W winds 10 kt. Seas 4 to 6 ft in W to NW swell.
Period 9 seconds.
.SAT...W winds 10 kt. Seas 4 to 6 ft in W to NW swell. Period
10 seconds.
.SAT NIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in W to NW
swell. Period 10 seconds.

$$

PMZ115-300315-
North Costa Rica to West Panama to 250 nm offshore-
812 AM PDT Tue Sep 29 2026

.TODAY...Variable winds less than 5 kt. Seas 3 to 5 ft in W
swell. Period 14 seconds. Scattered showers and isolated tstms
through the day.
.TONIGHT...Variable winds less than 5 kt, becoming SW to W 10 kt
late. Seas 3 to 5 ft. Period 14 seconds. Scattered
showers and isolated tstms through the night.
.WED...SW to W winds 10 kt. Seas 3 to 5 ft. Period 12 seconds.
Scattered showers and isolated tstms through the day.
.WED NIGHT...SW to W winds 10 kt. Seas 3 to 5 ft. Period
15 seconds. Scattered showers and isolated tstms through the
night.
.THU...SW winds 10 to 15 kt. Seas 3 to 5 ft. Period 12 seconds.
.THU NIGHT...SW to W winds 10 to 15 kt. Seas 3 to 5 ft. Period
12 seconds.
.FRI...SW to W winds 10 kt. Seas 3 to 5 ft. Period 11 seconds.
.FRI NIGHT...SW to W winds 10 kt. Seas 3 to 5 ft. Period
8 seconds.
.SAT...SW to W winds 10 kt. Seas 3 to 5 ft. Period 10 seconds.
.SAT NIGHT...SW to W winds 10 kt. Seas 3 to 5 ft. Period
12 seconds.

$$

PMZ117-300315-
East Panama and Colombia including the Gulf of Panama-
812 AM PDT Tue Sep 29 2026

.TODAY...Variable winds less than 5 kt, becoming W 10 kt in the
afternoon. Seas 2 to 4 ft. Period 14 seconds.
.TONIGHT...SW to W winds 10 kt. Seas 2 to 4 ft. Period
14 seconds. Scattered showers and isolated tstms through the
night.
.WED...SW winds 10 kt. Seas 3 to 5 ft. Period 16 seconds.
.WED NIGHT...SW winds 10 kt. Seas 3 to 5 ft. Period 16 seconds.
Scattered showers and isolated tstms through the night.
.THU...SW winds 10 kt. Seas 3 to 5 ft. Period 13 seconds.
.THU NIGHT...SW to W winds 10 kt. Seas 3 to 5 ft. Period
12 seconds.
.FRI...SW winds 10 kt. Seas 3 to 5 ft. Period 12 seconds.
.FRI NIGHT...SW winds 10 kt. Seas 3 to 5 ft. Period 11 seconds.
.SAT...S to SW winds 10 kt. Seas 3 to 5 ft. Period 13 seconds.
.SAT NIGHT...SW winds 10 kt. Seas 3 to 5 ft. Period 13 seconds.

$$

PMZ119-300315-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
812 AM PDT Tue Sep 29 2026

.TODAY...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
14 seconds.
.TONIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds. Isolated tstms through the night.
.WED...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds.
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
16 seconds.
.THU...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
12 seconds.
.THU NIGHT...SW winds 10 kt. Seas 3 to 5 ft. Period 12 seconds.
.FRI...S to SW winds 10 kt. Seas 3 to 5 ft. Period 11 seconds.
.FRI NIGHT...S to SW winds 10 kt. Seas 3 to 5 ft. Period
12 seconds.
.SAT...S to SW winds 10 kt. Seas 3 to 5 ft. Period 12 seconds.
.SAT NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
12 seconds.

$$

PMZ121-300315-
Ecuador between 250 and 500 nm offshore-
812 AM PDT Tue Sep 29 2026

.TODAY...S winds 10 to 15 kt. Seas 3 to 5 ft. Period 16 seconds.
.TONIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. Period
16 seconds.
.WED...S winds 10 to 15 kt. Seas 3 to 5 ft. Period 16 seconds.
.WED NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.THU...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds.
.THU NIGHT...S to SW winds 10 kt. Seas 4 to 6 ft in W to NW
swell. Period 12 seconds.
.FRI...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds.
.FRI NIGHT...S winds 10 kt. Seas 4 to 6 ft in W to NW swell.
Period 8 seconds.
.SAT...S winds 10 kt. Seas 3 to 5 ft. Period 12 seconds.
.SAT NIGHT...S winds 10 kt. Seas 3 to 5 ft. Period 12 seconds.

$$

PMZ123-300315-
Offshore Galapagos Islands-
812 AM PDT Tue Sep 29 2026

.TODAY...SE to S winds 10 to 15 kt. Seas 3 to 5 ft. Period
16 seconds.
.TONIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 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 4 to 6 ft. Period
15 seconds.
.THU...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
12 seconds.
.FRI...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.
.FRI NIGHT...SE to S winds 10 kt. Seas 4 to 6 ft in W to NW
swell. Period 11 seconds.
.SAT...SE to S winds 10 kt. Seas 4 to 6 ft in W to NW swell.
Period 12 seconds.
.SAT NIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
12 seconds.

$$

Forecaster Christensen