172
FZPN28 KNHC 170251
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
751 PM PDT Sat Aug 16 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.

PMZ101-171500-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
751 PM PDT Sat Aug 16 2025

.SYNOPSIS...Light to gentle westerly winds will continue across
the waters north of 05N through the weekend while gentle to
moderate southerly winds are expected south of 05N. Cross-
equatorial southerly swell will continue to propagate across the
regional waters, keeping seas in the moderate range, except in
the lee of the Galapagos Islands where slight seas are expected.

$$

PMZ111-171500-
Guatemala and El Salvador to 250 nm offshore-
751 PM PDT Sat Aug 16 2025

.TONIGHT...SE winds 10 kt. Seas 3 to 5 ft. Period 14 seconds.
.SUN...Variable winds less than 5 kt. Seas 3 to 5 ft in S to SW
swell. Period 14 seconds. Scattered showers and isolated tstms
through the day.
.SUN NIGHT...Variable winds less than 5 kt, becoming S to SW
10 kt late. Seas 3 to 5 ft. Period 18 seconds.
.MON...Variable winds less than 5 kt. Seas 3 to 5 ft in S to SW
swell. Period 18 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 16 seconds.
.TUE...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW
swell. Period 15 seconds.
.TUE NIGHT...Variable winds less than 5 kt. Seas 4 to 6 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 14 seconds.
.WED NIGHT...Variable winds less than 5 kt. Seas 3 to 5 ft in S
to SW swell. Period 14 seconds.
.THU...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW
swell. Period 14 seconds.
.THU NIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in S
to SW swell. Period 15 seconds.

$$

PMZ113-171500-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
751 PM PDT Sat Aug 16 2025

.TONIGHT...SW to W winds 10 kt. Seas 3 to 5 ft. Period
14 seconds. Scattered showers and isolated tstms through the
night.
.SUN...Offshore Gulf of Papagayo, NE winds 10 kt in the morning,
becoming variable winds less than 5 kt. Elsewhere, W to NW winds
10 kt. Seas 3 to 5 ft in SW swell. Period 13 seconds. Scattered
showers and isolated tstms through the day.
.SUN NIGHT...Variable winds less than 5 kt Offshore Gulf of
Papagayo, and W 10 kt Elsewhere. Seas 3 to 5 ft. Period
18 seconds. Scattered showers and isolated tstms through the
night.
.MON...Variable winds less than 5 kt. Seas 3 to 5 ft in SW
swell. Period 18 seconds. Scattered showers and isolated tstms
through the day.
.MON NIGHT...Variable winds less than 5 kt. Seas 3 to 5 ft in SW
swell. Period 16 seconds.
.TUE...Variable winds less than 5 kt. Seas 3 to 5 ft in S to SW
swell. Period 15 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 S
to SW swell. Period 14 seconds.
.THU...Variable winds less than 5 kt. Seas 3 to 5 ft in S to SW
swell. Period 14 seconds.
.THU NIGHT...E winds 10 kt Offshore Gulf of Papagayo, and
variable less than 5 kt Elsewhere. Seas 4 to 6 ft in S swell.
Period 15 seconds.

$$

PMZ115-171500-
North Costa Rica to West Panama to 250 nm offshore-
751 PM PDT Sat Aug 16 2025

.TONIGHT...SW to W winds 10 kt. Seas 3 to 5 ft. Period
12 seconds. Scattered showers and isolated tstms.
.SUN...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds. Scattered showers and isolated tstms.
.SUN NIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 18 seconds. Scattered showers and isolated tstms.
.MON...SW winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
17 seconds. Scattered showers and isolated tstms through the
day.
.MON NIGHT...Variable winds less than 5 kt Near the Azuero
Peninsula, and SW 10 kt Elsewhere. Seas 4 to 6 ft in S swell.
Period 14 seconds.
.TUE...Variable winds less than 5 kt Near the Azuero Peninsula,
and SW 10 kt Elsewhere. Seas 4 to 6 ft in S swell. Period
14 seconds.
.TUE NIGHT...Variable winds less than 5 kt Near the Azuero
Peninsula, and SW 10 kt Elsewhere. Seas 4 to 6 ft in S to SW
swell. Period 15 seconds.
.WED...Variable winds less than 5 kt Near the Azuero Peninsula,
and SW 10 kt Elsewhere. Seas 4 to 6 ft in S to SW swell. Period
15 seconds.
.WED NIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 14 seconds.
.THU...Variable winds less than 5 kt Near the Azuero Peninsula,
and SW 10 kt Elsewhere. Seas 5 to 7 ft in S swell. Period
13 seconds.
.THU NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S
swell. Period 15 seconds.

$$

PMZ117-171500-
East Panama and Colombia including the Gulf of Panama-
751 PM PDT Sat Aug 16 2025

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

$$

PMZ119-171500-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
751 PM PDT Sat Aug 16 2025

.TONIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft in S to SW
swell. Period 15 seconds.
.SUN...S to SW winds 10 to 15 kt. Seas 4 to 6 ft in S to SW
swell. Period 15 seconds.
.SUN NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 15 seconds.
.MON...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 16 seconds.
.MON NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 15 seconds.
.TUE...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds.
.TUE NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 14 seconds.
.WED...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 14 seconds.
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in S to
SW swell. Period 13 seconds.
.THU...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 14 seconds.
.THU NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 15 seconds.

$$

PMZ121-171500-
Ecuador between 250 and 500 nm offshore-
751 PM PDT Sat Aug 16 2025

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

$$

PMZ123-171500-
Offshore Galapagos Islands-
751 PM PDT Sat Aug 16 2025

.TONIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.SUN...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 17 seconds.
.SUN NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S
swell. Period 16 seconds.
.MON...SE winds 10 to 15 kt. Seas 6 to 8 ft in S swell. Period
15 seconds.
.MON NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft in S swell.
Period 13 seconds.
.TUE...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S swell.
Period 13 seconds.
.TUE NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S
swell. Period 13 seconds.
.WED...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 12 seconds.
.WED NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S
swell. Period 15 seconds.
.THU...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 14 seconds.
.THU NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S
swell. Period 14 seconds.

$$

Forecaster Christensen