112
FZPN28 KNHC 191958
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
358 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.

PMZ101-200800-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
358 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 Mon through Tue night. Seas
will build during this time in a mix of southwest swell and
westerly wind swell. North of 11N, moderate or weaker winds are
expected through this evening before the monsoon trough begins
to lift northward, and winds shift to westerly and gradually
increase to gentle to moderate by Sat. 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.

$$

PMZ111-200800-
Guatemala and El Salvador to 250 nm offshore-
358 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. Numerous showers and scattered thunderstorms.
.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 14 seconds.
Scattered showers and isolated thunderstorms through the day.
.FRI NIGHT...SW winds 10 to 15 kt, shifting to NW late. Seas
5 to 7 ft in SW swell. Period 13 seconds.
Numerous showers and scattered thunderstorms.
.SAT...N to NE winds 10 kt, shifting to SW to W in the
afternoon. Seas 5 to 7 ft in SW swell. Period 13 seconds.
Numerous showers and scattered thunderstorms.
.SAT NIGHT...W winds 10 kt. Seas 5 to 7 ft in SW to W swell.
Period 10 seconds.
.SUN...NW winds 10 kt. Seas 4 to 6 ft in SW to W swell. Period
11 seconds.
.SUN NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.MON...SW winds 15 to 20 kt. Seas 5 to 7 ft. Period 14 seconds.
.MON NIGHT...SW to W winds 15 to 20 kt. Seas 6 to 9 ft in SW to
W swell. Period 14 seconds.
.TUE...SW to W winds 20 to 25 kt. Seas 7 to 10 ft in SW to W
swell. Period 13 seconds.
.TUE NIGHT...SW to W winds 20 to 25 kt. Seas 7 to 11 ft in SW to
W swell. Period 8 seconds.

$$

PMZ113-200800-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
358 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 thunderstorms.
.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 14 seconds. Scattered
showers and isolated thunderstorms through the day.
.FRI NIGHT...NW to N winds 10 kt. Seas 5 to 7 ft in SW to W
swell. Period 13 seconds. Numerous showers and scattered
thunderstorms.
.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 to W swell. Period 13 seconds. Numerous showers and scattered
thunderstorms.
.SAT NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in 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 SW to 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.

$$

PMZ115-200800-
North Costa Rica to West Panama to 250 nm offshore-
358 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. Winds and seas higher in and near numerous
showers and thunderstorms.
.FRI...SW to W winds 15 to 20 kt. Seas 5 to 7 ft. Period
14 seconds. Numerous showers and thunderstorms.
.FRI NIGHT...SW to W winds 15 to 20 kt. Seas 6 to 8 ft in SW
swell. Period 13 seconds. Numerous showers and thunderstorms.
.SAT...SW winds 15 to 20 kt. Seas 6 to 8 ft in SW swell. Period
12 seconds. Numerous showers and thunderstorms.
.SAT NIGHT...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in SW
swell. Period 7 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 to SW
swell. Period 12 seconds.
.MON...SW winds 15 to 20 kt. Seas 6 to 8 ft in S 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 S to SW swell.
Period 11 seconds.
.TUE NIGHT...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in S to
SW swell. Period 10 seconds.

$$

PMZ117-200800-
East Panama and Colombia including the Gulf of Panama-
358 PM PDT Thu Sep 19 2024

.TONIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds. Winds and seas higher in and near numerous showers
and thunderstorms N of 05N.
.FRI...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 14 seconds. Scattered to numerous showers and thunderstorms
N of 05N.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds. Scattered to numerous showers and thunderstorms.
.SAT...SW winds 15 to 20 kt. Seas 5 to 7 ft. Period 13 seconds.
Scattered to numerous showers and thunderstorms.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 11
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
12 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 13 seconds.
.TUE NIGHT...SW to W winds 10 to 15 kt. Seas 3 to 5 ft. Period
13 seconds.

$$

PMZ119-200800-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
358 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 in S to SW swell. Period 14
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 12 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
11 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.

$$

PMZ121-200800-
Ecuador between 250 and 500 nm offshore-
358 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 11 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 13 seconds.

$$

PMZ123-200800-
Offshore Galapagos Islands-
358 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
11 seconds.
.SAT...SE to 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 12 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
12 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
12 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 swell. Period
12 seconds.

$$

Forecaster Aguirre