778
FZPN28 KNHC 200341
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
841 PM PDT Thu Sep 19 2024

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.

PMZ101-201545-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
841 PM PDT Thu Sep 19 2024

.SYNOPSIS...Moderate to fresh southwest to west winds south of
the monsoon trough will change little through Sun night, then
increase to fresh to strong speeds across the offshore waters from
Costa Rica to Guatemala Mon through Tue night. Seas will build
during this time in a mix of southwest swell and westerly wind
swell. The monsoonal flow is expected to become very active, and
dominate the region Fri into early next week. This pattern will
generate increasing westerly wind waves moving into the area
waters. Periods of very active weather are also expected across
area waters north of 06N through the weekend and possibly into
next week.

$$

PMZ111-201545-
Guatemala and El Salvador to 250 nm offshore-
841 PM PDT Thu Sep 19 2024

.TONIGHT...W winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 14 seconds. Scattered showers and isolated tstms.
.FRI...NW to N winds 10 to 15 kt, shifting to SW to W in the
afternoon. Seas 5 to 7 ft in S to SW swell. Period 8 seconds.
Scattered tstms.
.FRI NIGHT...SW winds 10 to 15 kt, shifting to W to NW late.
Seas 5 to 7 ft in SW swell. Period 8 seconds.
Scattered showers and isolated tstms.
.SAT...N to NE winds 10 kt, shifting to SW to W in the
afternoon. Seas 5 to 7 ft in SW swell. Period 8 seconds.
Numerous showers and scattered tstms.
.SAT NIGHT...W winds 10 kt. Seas 5 to 7 ft in SW swell. Period
7 seconds.
.SUN...NW winds 10 kt. Seas 4 to 6 ft in SW to W swell. Period
7 seconds.
.SUN NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
7 seconds.
.MON...SW winds 15 to 20 kt. Seas 5 to 7 ft. Period 8 seconds.
.MON NIGHT...SW to W winds 15 to 20 kt. Seas 6 to 9 ft in W
swell. Period 8 seconds.
.TUE...SW to W winds 20 to 25 kt. Seas 7 to 10 ft in W swell.
Period 8 seconds.
.TUE NIGHT...SW to W winds 20 to 25 kt. Seas 7 to 11 ft in SW
swell. Period 8 seconds.

$$

PMZ113-201545-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
841 PM PDT Thu Sep 19 2024

.TONIGHT...Variable winds less than 5 kt Offshore Gulf of
Papagayo, and W 10 to 15 kt Elsewhere. Seas 5 to 7 ft. Period
14 seconds. Numerous showers and scattered tstms.
.FRI...Offshore Gulf of Papagayo, NE winds 10 kt in the morning,
becoming variable winds less than 5 kt. Elsewhere, NW to N winds
10 to 15 kt. Seas 5 to 7 ft. Period 8 seconds. Numerous showers
and scattered tstms.
.FRI NIGHT...NW to N winds 10 kt. Seas 5 to 7 ft in SW swell.
Period 8 seconds. Scattered showers and isolated tstms.
.SAT...Offshore Gulf of Papagayo, E winds 10 kt in the morning,
becoming variable winds less than 5 kt. Elsewhere, NW winds
10 kt, shifting to SW to W in the afternoon. Seas 6 to 8 ft in
SW swell. Period 7 seconds. Numerous showers and scattered
tstms.
.SAT NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in SW to
W swell. Period 7 seconds.
.SUN...SW winds 10 to 15 kt. Seas 5 to 7 ft in SW to W swell.
Period 7 seconds.
.SUN NIGHT...SW winds 15 to 20 kt. Seas 5 to 7 ft. Period
7 seconds.
.MON...SW winds 15 to 20 kt. Seas 6 to 8 ft in SW swell. Period
7 seconds.
.MON NIGHT...SW winds 15 to 20 kt. Seas 6 to 9 ft in W swell.
Period 7 seconds.
.TUE...SW winds 15 to 20 kt. Seas 7 to 10 ft in W swell. Period
8 seconds.
.TUE NIGHT...SW winds 15 to 20 kt. Seas 7 to 10 ft in W swell.
Period 8 seconds.

$$

PMZ115-201545-
North Costa Rica to West Panama to 250 nm offshore-
841 PM PDT Thu Sep 19 2024

.TONIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 14 seconds. Numerous showers and scattered tstms through
the night.
.FRI...SW to W winds 15 to 20 kt. Seas 5 to 7 ft. Period
13 seconds. Numerous showers and scattered tstms through the
day.
.FRI NIGHT...SW to W winds 15 to 20 kt. Seas 6 to 8 ft in SW
swell. Period 7 seconds. Scattered showers and isolated tstms.
.SAT...SW winds 15 to 20 kt. Seas 6 to 8 ft in SW swell. Period
7 seconds. Numerous showers and scattered tstms.
.SAT NIGHT...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in S to
SW swell. Period 6 seconds.
.SUN...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 12 seconds.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 12 seconds.
.MON...SW winds 15 to 20 kt. Seas 6 to 8 ft in S to SW swell.
Period 11 seconds.
.MON NIGHT...SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 11 seconds.
.TUE...SW winds 10 to 15 kt. Seas 6 to 8 ft in SW swell. Period
11 seconds.
.TUE NIGHT...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in SW to
W swell. Period 11 seconds.

$$

PMZ117-201545-
East Panama and Colombia including the Gulf of Panama-
841 PM PDT Thu Sep 19 2024

.TONIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds. Scattered tstms through the night.
.FRI...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 13 seconds. Numerous showers and scattered tstms through
the day.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds. Scattered tstms through the night.
.SAT...SW winds 15 to 20 kt. Seas 5 to 7 ft. Period 12 seconds.
Numerous showers and scattered tstms through the day.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
12 seconds.
.SUN...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.
.MON...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds.
.MON NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.
.TUE...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds.
.TUE NIGHT...SW to W winds 10 to 15 kt. Seas 3 to 5 ft. Period
11 seconds.

$$

PMZ119-201545-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
841 PM PDT Thu Sep 19 2024

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

$$

PMZ121-201545-
Ecuador between 250 and 500 nm offshore-
841 PM PDT Thu Sep 19 2024

.TONIGHT...S winds 10 kt. Seas 4 to 6 ft in S swell. Period
13 seconds.
.FRI...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds.
.FRI NIGHT...S winds 10 kt. Seas 3 to 5 ft. Period 12 seconds.
.SAT...S winds 10 kt. Seas 4 to 6 ft in S swell. Period
14 seconds.
.SAT NIGHT...S to SW winds 10 kt. Seas 4 to 6 ft in S swell.
Period 13 seconds.
.SUN...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
12 seconds.
.SUN NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
12 seconds.
.MON...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds.
.MON NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.
.TUE...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds.
.TUE NIGHT...S winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 12 seconds.

$$

PMZ123-201545-
Offshore Galapagos Islands-
841 PM PDT Thu Sep 19 2024

.TONIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds.
.FRI...S winds 10 kt. Seas 4 to 6 ft in S swell. Period
12 seconds.
.FRI NIGHT...S winds 10 kt. Seas 4 to 6 ft in S swell. Period
10 seconds.
.SAT...SE to S winds 10 kt. Seas 4 to 6 ft in S swell. Period
13 seconds.
.SAT NIGHT...S to SW winds 10 kt. Seas 4 to 6 ft in S swell.
Period 11 seconds.
.SUN...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds.
.SUN NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.
.MON...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds.
.MON NIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.
.TUE...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
12 seconds.
.TUE NIGHT...S winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 11 seconds.

$$

Forecaster Ramos