651
FZPN28 KNHC 300400
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
900 PM PDT Tue Jul 29 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.

PMZ101-301600-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
900 PM PDT Tue Jul 29 2025

.SYNOPSIS...A powerful 8.8 magnitude earthquake occured at 2325
UTC July 29 off the east coast of Kamchatka, Russia. This event
may generate tsunami waves up to 3 meters across the offshore and
coastal waters from Guatemala to Ecuador. Mariners and coastal
interests should consult local authorities and visit
https://tsunami.gov for the latest information and guidance.
Moderate to occasionally fresh E to NE winds and moderate seas
are expected in the Gulf of Papagayo through Thu as low pressure
prevails in the south-central Caribbean, and an area of low
pressure strengthens to the west. Winds are expected to
strengthen to strong speeds late this week, and fresh winds will
extend through the waters offshore of El Salvador and Guatemala.
Looking ahead, a long-period SW swell may lead to rough seas
offshore of South America by late week.

$$

PMZ111-301600-
Guatemala and El Salvador to 250 nm offshore-
900 PM PDT Tue Jul 29 2025

.TONIGHT...NE to E winds 10 kt. Seas 4 to 6 ft in S swell.
Period 8 seconds. Scattered showers and isolated tstms.
.WED...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds. Scattered showers and isolated tstms through the
day.
.WED NIGHT...NE to E winds 10 to 15 kt. Seas 4 to 6 ft in S
swell. Period 17 seconds. Scattered showers and isolated tstms
through the night.
.THU...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. Period
17 seconds. Scattered showers and isolated tstms through the
day.
.THU NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 16 seconds.
.FRI...E winds 15 to 20 kt. Seas 5 to 7 ft. Period 15 seconds.
.FRI NIGHT...E to SE winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 14 seconds.
.SAT...E to SE winds 10 kt. Seas 5 to 7 ft in SW swell. Period
14 seconds.
.SAT NIGHT...S to SW winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds.
.SUN...W to NW winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 14 seconds.
.SUN NIGHT...W to NW winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 14 seconds.

$$

PMZ113-301600-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
900 PM PDT Tue Jul 29 2025

.TONIGHT...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds. Scattered showers and isolated tstms through the
night.
.WED...NE to E winds 15 to 20 kt Offshore Gulf of Papagayo, and
E 10 to 15 kt Elsewhere. Seas 4 to 6 ft. Period 16 seconds.
Scattered showers and isolated tstms through the day.
.WED NIGHT...Offshore Gulf of Papagayo, NE to E winds 15 to
20 kt. Elsewhere, SE winds 10 to 15 kt, shifting to NE to E
late. Seas 5 to 7 ft. Period 17 seconds. Scattered
showers and isolated tstms through the night.
.THU...NE to E winds 20 kt Offshore Gulf of Papagayo, and NE to
E 10 to 15 kt Elsewhere. Seas 5 to 7 ft in S swell. Period
17 seconds. Scattered showers and isolated tstms through the
day.
.THU NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft in S swell.
Period 13 seconds.
.FRI...E winds 15 to 20 kt. Seas 5 to 7 ft. Period 14 seconds.
.FRI NIGHT...SE winds 15 to 20 kt. Seas 5 to 7 ft. Period
14 seconds.
.SAT...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.SAT NIGHT...NE to E winds 15 to 20 kt Offshore Gulf of
Papagayo, and W 10 kt Elsewhere. Seas 5 to 7 ft in S to SW
swell. Period 13 seconds.
.SUN...N winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 14 seconds.
.SUN NIGHT...NW to N winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 14 seconds.

$$

PMZ115-301600-
North Costa Rica to West Panama to 250 nm offshore-
900 PM PDT Tue Jul 29 2025

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

$$

PMZ117-301600-
East Panama and Colombia including the Gulf of Panama-
900 PM PDT Tue Jul 29 2025

.TONIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds. Scattered tstms through the night.
.WED...SW winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
14 seconds. Scattered showers and isolated tstms through the
day.
.WED NIGHT...SW winds 10 kt. Seas 3 to 5 ft. Period 17 seconds.
Scattered showers and isolated tstms through the night.
.THU...SW winds 10 kt. Seas 3 to 5 ft. Period 17 seconds.
Scattered showers and isolated tstms through the day.
.THU NIGHT...SW to W winds 10 to 15 kt. Seas 3 to 5 ft. Period
16 seconds.
.FRI...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 15 seconds.
.FRI NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.SAT...SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell. Period
14 seconds.
.SAT NIGHT...SW to W winds 10 kt. Seas 5 to 7 ft in SW swell.
Period 13 seconds.
.SUN...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 13 seconds.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds.

$$

PMZ119-301600-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
900 PM PDT Tue Jul 29 2025

.TONIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.WED...Gulf of Guayaquil, variable winds less than 5 kt,
becoming SW to W 10 kt in the afternoon. Elsewhere, S to SW
winds 10 to 15 kt. Seas 4 to 6 ft in S swell. Period 15 seconds.
.WED NIGHT...S to SW winds 10 kt. Seas 3 to 5 ft. Period
17 seconds.
.THU...Gulf of Guayaquil, variable winds less than 5 kt,
becoming W 10 kt in the afternoon. Elsewhere, S to SW winds
10 kt. Seas 3 to 5 ft. Period 17 seconds.
.THU NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.FRI...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 14 seconds.
.FRI NIGHT...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in SW
swell. Period 14 seconds.
.SAT...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 13 seconds.
.SAT NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 13 seconds.
.SUN...SW winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period
13 seconds.
.SUN NIGHT...SW winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 12 seconds.

$$

PMZ121-301600-
Ecuador between 250 and 500 nm offshore-
900 PM PDT Tue Jul 29 2025

.TONIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.WED...S winds 10 to 15 kt. Seas 4 to 6 ft in S swell. Period
14 seconds.
.WED NIGHT...S winds 10 kt. Seas 3 to 5 ft. Period 13 seconds.
.THU...S winds 10 kt. Seas 3 to 5 ft. Period 16 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.FRI...S winds 15 kt. Seas 5 to 7 ft in S to SW swell. Period
14 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 13 seconds.
.SAT...S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 13 seconds.
.SAT NIGHT...S winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 13 seconds.
.SUN...S winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period
13 seconds.
.SUN NIGHT...S to SW winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 12 seconds.

$$

PMZ123-301600-
Offshore Galapagos Islands-
900 PM PDT Tue Jul 29 2025

.TONIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.WED...SE to S winds 10 kt. Seas 3 to 5 ft. Period 16 seconds.
.WED NIGHT...SE to S winds 10 kt. Seas 3 to 5 ft. Period
17 seconds.
.THU...SE to S winds 10 kt. Seas 4 to 6 ft in SW swell. Period
16 seconds.
.THU NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 13 seconds.
.FRI...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 13 seconds.
.FRI NIGHT...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S to
SW swell. Period 13 seconds.
.SAT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds.
.SAT NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 14 seconds.
.SUN...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 13 seconds.
.SUN NIGHT...S winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 12 seconds.

$$

Forecaster Ramos