713
FZPN28 KNHC 181602
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
902 AM PDT Wed Sep 18 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.

PMZ101-190415-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
902 AM PDT Wed Sep 18 2024

.SYNOPSIS...Gentle to moderate SW to W winds will continue south
of the monsoon trough near 10N through Thu afternoon, then begin
to freshen offshore Thu evening through Sat. Seas will build
during this time in a mix of SW swell and westerly wind swell.
Active weather is expected south of 10N Fri into the weekend.
North of 10N, moderate or weaker winds are expected through Thu
evening before the monsoon trough begins to lift northward, and
winds shift to westerly and gradually increase to gentle to
moderate by Sat. Seas will build slightly across the area waters
Thu through Sat as a long fetch of westerly winds sets up from
offshore to 110W, and generates increasing wind waves moving
into the area waters.

$$

PMZ111-190415-
Guatemala and El Salvador to 250 nm offshore-
902 AM PDT Wed Sep 18 2024

.TODAY...E to SE winds 10 kt. Seas 4 to 6 ft in S swell. Period
15 seconds. Scattered showers and isolated thunderstorms.
.TONIGHT...SE winds 10 kt. Seas 5 to 7 ft in S swell. Period
15 seconds. Scattered showers and isolated thunderstorms.
.THU...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 14 seconds. Scattered showers and thunderstorms.
.THU NIGHT...S to SW winds 10 kt, shifting to W to NW late. Seas
5 to 7 ft in S to SW swell. Period 14 seconds. Scattered to
numerous showers and thunderstorms.
.FRI...NW winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period
8 seconds.
.FRI NIGHT...W winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 7 seconds.
.SAT...W winds 10 to 15 kt. Seas 5 to 7 ft in SW swell. Period
7 seconds.
.SAT NIGHT...W winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 7 seconds.
.SUN...W to NW winds 10 kt. Seas 4 to 6 ft in SW swell. Period
7 seconds.
.SUN NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in SW to
W swell. Period 7 seconds.

$$

PMZ113-190415-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
902 AM PDT Wed Sep 18 2024

.TODAY...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds. Scattered showers and thunderstorms.
.TONIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 15 seconds. Scattered showers and thunderstorms.
.THU...Variable winds less than 5 kt Offshore Gulf of Papagayo,
and SW 10 to 15 kt Elsewhere. Seas 5 to 7 ft in S swell. Period
14 seconds. Scattered to numerous showers and thunderstorms.
.THU NIGHT...Offshore Gulf of Papagayo, S to SW winds 10 kt in
the evening, becoming variable winds less than 5 kt. Elsewhere,
SW to W winds 15 to 20 kt. Seas 5 to 7 ft in S to SW swell.
Period 14 seconds. Scattered to numerous showers and thunderstorms.
.FRI...SE winds 10 kt Offshore Gulf of Papagayo, and W to NW
15 to 20 kt Elsewhere. Seas 6 to 8 ft in SW swell. Period
10 seconds.
.FRI NIGHT...SE winds 10 kt Offshore Gulf of Papagayo, and W
15 to 20 kt Elsewhere. Seas 5 to 7 ft in SW swell. Period
7 seconds.
.SAT...W winds 15 to 20 kt. Seas 5 to 7 ft. Period 7 seconds.
.SAT NIGHT...W winds 10 to 15 kt. Seas 5 to 7 ft in SW to W
swell. Period 7 seconds.
.SUN...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in SW to W
swell. Period 7 seconds.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
7 seconds.

$$

PMZ115-190415-
North Costa Rica to West Panama to 250 nm offshore-
902 AM PDT Wed Sep 18 2024

.TODAY...SW winds 10 to 15 kt. Seas 5 to 7 ft in S swell. Period
15 seconds. Winds and seas higher in and near scattered showers
and thunderstorms.
.TONIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 15 seconds. Scattered showers and thunderstorms.
.THU...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 14 seconds. Scattered to numerous showers and
thunderstorms.
.THU NIGHT...SW to W winds 15 to 20 kt. Seas 5 to 7 ft. Period
14 seconds. Scattered to numerous showers and thunderstorms.
.FRI...SW to W winds 15 to 20 kt. Seas 5 to 7 ft. Period
6 seconds.
.FRI NIGHT...SW to W winds 15 to 20 kt. Seas 6 to 8 ft in S to
SW swell. Period 6 seconds.
.SAT...SW winds 15 to 20 kt. Seas 6 to 8 ft in SW swell. Period
7 seconds.
.SAT NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 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 4 to 6 ft. Period
11 seconds.

$$

PMZ117-190415-
East Panama and Colombia including the Gulf of Panama-
902 AM PDT Wed Sep 18 2024

.TODAY...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 16 seconds. Winds and seas higher in and near scattered
to numerous showers and thunderstorms N of 04N.
.TONIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds. Scattered showers and thunderstorms
N of 04N.
.THU...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds. Scattered to numerous showers and thunderstorms
N of 04N.
.THU NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 14
seconds. Scattered to numerous showers and thunderstorms.
.FRI...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 11 seconds.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
10 seconds.
.SAT...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 6 seconds.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 11 seconds.
.SUN...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds.
.SUN NIGHT...S to SW winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 11 seconds.

$$

PMZ119-190415-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
902 AM PDT Wed Sep 18 2024

.TODAY...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.TONIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.THU...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds.
.THU NIGHT...Gulf of Guayaquil, SW to W 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...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds.
.FRI NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
11 seconds.
.SAT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
12 seconds.
.SAT NIGHT...SW winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 13 seconds.
.SUN...SW winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
12 seconds.
.SUN NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
12 seconds.

$$

PMZ121-190415-
Ecuador between 250 and 500 nm offshore-
902 AM PDT Wed Sep 18 2024

.TODAY...S winds 10 to 15 kt. Seas 5 to 7 ft in S swell. Period
15 seconds.
.TONIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.THU...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds.
.THU NIGHT...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
11 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.
.SAT...S winds 10 kt. Seas 4 to 6 ft in S swell. Period
12 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 kt. Seas 4 to 6 ft in S swell. Period
12 seconds.
.SUN NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
12 seconds.

$$

PMZ123-190415-
Offshore Galapagos Islands-
902 AM PDT Wed Sep 18 2024

.TODAY...S winds 10 to 15 kt. Seas 5 to 7 ft in SE to S swell.
Period 14 seconds.
.TONIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft in SE to S swell.
Period 14 seconds.
.THU...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in SE to S
swell. Period 13 seconds.
.THU NIGHT...S winds 10 kt. Seas 4 to 6 ft in S swell. Period
13 seconds.
.FRI...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds.
.FRI NIGHT...S winds 10 kt. Seas 4 to 6 ft in S swell. Period
8 seconds.
.SAT...SE to S winds 10 kt. Seas 4 to 6 ft in S swell. Period
11 seconds.
.SAT NIGHT...S winds 10 kt. Seas 4 to 6 ft in S swell. Period
11 seconds.
.SUN...S winds 10 kt. Seas 4 to 6 ft in S swell. Period
11 seconds.
.SUN NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.

$$

Forecaster Aguirre