929
FZPN28 KNHC 231605
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
905 AM PDT Sat Aug 23 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.

PMZ101-240415-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
905 AM PDT Sat Aug 23 2025

.SYNOPSIS...A long-period Southern Hemisphere swell will lead to
rough seas offshore of Ecuador by this afternoon, and offshore
of Colombia, Panama and Costa Rica by early next week. Very rough
seas will be possible south of the equator offshore of Ecuador
Sun morning into early Mon. Seas will slowly subside through the
middle of next week. Elsewhere, moderate NE to E gap winds are
expected in the Gulf of Papagayo into early next week, with winds
increasing to fresh speeds by midweek.

$$

PMZ111-240415-
Guatemala and El Salvador to 250 nm offshore-
905 AM PDT Sat Aug 23 2025

.TODAY...E winds 10 kt. Seas 4 to 6 ft in S swell. Period
15 seconds. Scattered showers and isolated tstms through the
day.
.TONIGHT...E to SE winds 10 kt. Seas 4 to 6 ft in S swell.
Period 17 seconds. Scattered showers and isolated tstms through
the night.
.SUN...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. Period
20 seconds. Scattered showers and isolated tstms through the
day.
.SUN NIGHT...SE winds 10 kt. Seas 5 to 7 ft in S swell. Period
19 seconds. Scattered showers and isolated tstms through the
night.
.MON...E to SE winds 10 kt. Seas 6 to 8 ft in S swell. Period
18 seconds.
.MON NIGHT...E winds 10 kt. Seas 6 to 8 ft in S swell. Period
17 seconds.
.TUE...E winds 10 to 15 kt. Seas 6 to 8 ft in S swell. Period
16 seconds.
.TUE NIGHT...NE to E winds 10 kt. Seas 6 to 8 ft in S swell.
Period 15 seconds.
.WED...NE to E winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 14 seconds.
.WED NIGHT...E winds 10 kt. Seas 5 to 7 ft in S swell. Period
13 seconds.

$$

PMZ113-240415-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
905 AM PDT Sat Aug 23 2025

.TODAY...E to SE winds 10 to 15 kt. Seas 4 to 6 ft in S swell.
Period 15 seconds. Scattered showers and isolated tstms through
the day.
.TONIGHT...E to SE winds 10 to 15 kt. Seas 4 to 6 ft in S swell.
Period 15 seconds. Scattered showers and isolated tstms through
the night.
.SUN...SE winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
20 seconds. Numerous showers and scattered tstms through the
day.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 19 seconds. Scattered showers and isolated tstms through
the night.
.MON...NE winds 10 to 15 kt. Seas 6 to 8 ft in S swell. Period
18 seconds.
.MON NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft in S swell.
Period 17 seconds.
.TUE...NE to E winds 15 to 20 kt. Seas 6 to 9 ft in S swell.
Period 15 seconds.
.TUE NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft in S swell.
Period 14 seconds.
.WED...E winds 10 to 15 kt. Seas 6 to 8 ft in S swell. Period 13
seconds.
.WED NIGHT...E winds 10 kt. Seas 4 to 6 ft in S swell. Period 13
seconds.

$$

PMZ115-240415-
North Costa Rica to West Panama to 250 nm offshore-
905 AM PDT Sat Aug 23 2025

.TODAY...SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 15 seconds. Numerous showers and scattered tstms through
the day.
.TONIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft. Period
14 seconds. Scattered showers and isolated tstms through the
night.
.SUN...Near the Azuero Peninsula, variable winds less than 5 kt,
becoming SW to W 10 kt in the afternoon. Elsewhere, SW to W
winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell. Period
20 seconds. Scattered showers and isolated tstms through the
day.
.SUN NIGHT...W winds 10 kt. Seas 6 to 9 ft in S to SW swell.
Period 20 seconds. Scattered showers and isolated tstms through
the night.
.MON...Variable winds less than 5 kt Near the Azuero Peninsula,
and SW to W 10 kt Elsewhere. Seas 7 to 10 ft in S to SW swell.
Period 17 seconds.
.MON NIGHT...Variable winds less than 5 kt. Seas 7 to 10 ft in S
to SW swell. Period 16 seconds.
.TUE...Variable winds less than 5 kt Near the Azuero Peninsula,
and SW 10 kt Elsewhere. Seas 6 to 9 ft in S to SW swell. Period
14 seconds.
.TUE NIGHT...Variable winds less than 5 kt Near the Azuero
Peninsula, and SW 10 kt Elsewhere. Seas 6 to 8 ft in S swell.
Period 14 seconds.
.WED...Variable winds less than 5 kt Near the Azuero Peninsula,
and S to SW 10 kt Elsewhere. Seas 5 to 7 ft in S swell. Period
13 seconds.
.WED 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
swell. Period 13 seconds.

$$

PMZ117-240415-
East Panama and Colombia including the Gulf of Panama-
905 AM PDT Sat Aug 23 2025

.TODAY...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 16 seconds. Scattered showers and isolated tstms through
the day.
.TONIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft. Period
15 seconds. Scattered showers and isolated tstms through the
night.
.SUN...SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 20 seconds. Scattered showers and isolated tstms through
the day.
.SUN NIGHT...SW to W winds 10 kt. Seas 7 to 10 ft in S to SW
swell. Period 20 seconds. Scattered showers and isolated tstms
through the night.
.MON...SW winds 10 kt. Seas 7 to 10 ft in S to SW swell. Period
17 seconds.
.MON NIGHT...Variable winds less than 5 kt Gulf of Panama, and
SW to W 10 kt Elsewhere. Seas 7 to 10 ft in S to SW swell.
Period 16 seconds.
.TUE...SW winds 10 to 15 kt. Seas 6 to 9 ft in S to SW swell.
Period 15 seconds.
.TUE NIGHT...SW winds 10 kt. Seas 6 to 8 ft in S to SW swell.
Period 14 seconds.
.WED...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 13 seconds.
.WED NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 13 seconds.

$$

PMZ119-240415-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
905 AM PDT Sat Aug 23 2025

.TODAY...W winds 10 kt Gulf of Guayaquil, and S to SW 15 to
20 kt Elsewhere. Seas 6 to 8 ft in S to SW swell. Period
14 seconds.
.TONIGHT...S to SW winds 10 to 15 kt. Seas 7 to 10 ft in S to SW
swell. Period 20 seconds.
.SUN...S to SW winds 10 to 15 kt. Seas 8 to 12 ft in S to SW
swell. Period 19 seconds.
.SUN NIGHT...S to SW winds 10 to 15 kt. Seas 8 to 12 ft in S to
SW swell. Period 18 seconds.
.MON...S to SW winds 10 to 15 kt. Seas 7 to 11 ft in S to SW
swell. Period 16 seconds.
.MON NIGHT...S to SW winds 10 to 15 kt. Seas 7 to 10 ft in S to
SW swell. Period 14 seconds.
.TUE...S to SW winds 10 to 15 kt. Seas 6 to 9 ft in S to SW
swell. Period 14 seconds.
.TUE NIGHT...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in S
swell. Period 13 seconds.
.WED...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 12 seconds.
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S
swell. Period 11 seconds.

$$

PMZ121-240415-
Ecuador between 250 and 500 nm offshore-
905 AM PDT Sat Aug 23 2025

.TODAY...S winds 15 kt. Seas 6 to 9 ft in S swell. Period
14 seconds.
.TONIGHT...SE to S winds 10 to 15 kt. Seas 7 to 11 ft in S to SW
swell. Period 20 seconds.
.SUN...SE to S winds 10 to 15 kt. Seas 9 to 13 ft in S to SW
swell. Period 19 seconds.
.SUN NIGHT...SE to S winds 10 to 15 kt. Seas 9 to 13 ft in S to
SW swell. Period 18 seconds.
.MON...SE to S winds 10 kt. Seas 7 to 11 ft in S to SW swell.
Period 15 seconds.
.MON NIGHT...SE to S winds 10 to 15 kt. Seas 7 to 10 ft in S
swell. Period 14 seconds.
.TUE...SE to S winds 10 to 15 kt. Seas 6 to 9 ft in S swell.
Period 13 seconds.
.TUE NIGHT...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S
swell. Period 12 seconds.
.WED...S winds 10 to 15 kt. Seas 5 to 7 ft in SE to S swell.
Period 11 seconds.
.WED NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in SE to S
swell. Period 11 seconds.

$$

PMZ123-240415-
Offshore Galapagos Islands-
905 AM PDT Sat Aug 23 2025

.TODAY...SE to S winds 15 to 20 kt. Seas 6 to 9 ft in S swell.
Period 19 seconds.
.TONIGHT...SE to S winds 15 kt. Seas 7 to 11 ft in S swell.
Period 19 seconds.
.SUN...SE winds 10 to 15 kt. Seas 9 to 13 ft in S swell. Period
19 seconds.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 9 to 13 ft in S swell.
Period 17 seconds.
.MON...SE winds 10 to 15 kt. Seas 7 to 11 ft in S swell. Period
13 seconds.
.MON NIGHT...SE to S winds 10 to 15 kt. Seas 7 to 10 ft in S
swell. Period 13 seconds.
.TUE...SE to S winds 10 to 15 kt. Seas 6 to 9 ft in SE to S
swell. Period 12 seconds.
.TUE NIGHT...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in SE to
S swell. Period 12 seconds.
.WED...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in SE to S
swell. Period 11 seconds.
.WED NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in SE to
S swell. Period 10 seconds.

$$

Forecaster ADAMS