540
FZPN28 KNHC 120805
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
105 AM PDT Sun Oct 12 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.

PMZ101-122015-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
105 AM PDT Sun Oct 12 2025

.SYNOPSIS...Generally moderate southwest winds and seas will
remain south of the monsoon through the week. A very moist and
unstable atmospheric environment will be favorable for showers
and thunderstorms to continue to develop over the regional
waters. Looking ahead, low pressure may form south of Guatemala
by mid-week, and environmental conditions may be conducive for
some tropical development of this low as it move slowly north or
northwest late this week.

$$

PMZ111-122015-
Guatemala and El Salvador to 250 nm offshore-
105 AM PDT Sun Oct 12 2025

.TODAY...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds. Scattered tstms through the day.
.TONIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds. Scattered showers and isolated tstms
through the night.
.MON...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds. Scattered showers and isolated tstms
through the day.
.MON NIGHT...S to SW winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds. Scattered tstms through the night.
.TUE...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds.
.TUE NIGHT...SE to S winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 13 seconds.
.WED...SE to S winds 10 kt. Seas 3 to 5 ft. Period 12 seconds.
.WED NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds.
.THU...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds.
.THU NIGHT...SW winds 15 to 20 kt. Seas 5 to 7 ft. Period
17 seconds.

$$

PMZ113-122015-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
105 AM PDT Sun Oct 12 2025

.TODAY...SW winds 10 to 15 kt. Seas 6 to 8 ft in SW swell.
Period 15 seconds. Scattered showers and isolated tstms through
the day.
.TONIGHT...SW winds 10 to 15 kt. Seas 6 to 8 ft in SW swell.
Period 15 seconds. Scattered tstms through the night.
.MON...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 15 seconds. Scattered showers and isolated tstms through
the day.
.MON NIGHT...Offshore Gulf of Papagayo, S to SW winds 10 kt in
the evening, becoming variable winds less than 5 kt. Elsewhere,
SW winds 10 to 15 kt. Seas 5 to 7 ft. Period 14 seconds.
Numerous showers and scattered tstms.
.TUE...SW winds 10 kt. Seas 4 to 6 ft in SW swell. Period
13 seconds.
.TUE NIGHT...SW winds 10 kt. Seas 4 to 6 ft in SW swell. Period
13 seconds.
.WED...Variable winds less than 5 kt Offshore Gulf of Papagayo,
and SW 10 to 15 kt Elsewhere. Seas 3 to 5 ft. Period 12 seconds.
.WED NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds.
.THU...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.THU NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 16 seconds.

$$

PMZ115-122015-
North Costa Rica to West Panama to 250 nm offshore-
105 AM PDT Sun Oct 12 2025

.TODAY...SW winds 10 to 15 kt. Seas 5 to 7 ft in W swell. Period
15 seconds. Scattered showers and isolated tstms through the
day.
.TONIGHT...SW winds 10 kt. Seas 5 to 7 ft in SW to W swell.
Period 15 seconds. Scattered showers and isolated tstms through
the night.
.MON...SW winds 10 kt. Seas 5 to 7 ft in SW to W swell. Period
15 seconds. Scattered showers and isolated tstms through the
day.
.MON NIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in SW to W
swell. Period 14 seconds. Scattered showers and isolated tstms
through the night.
.TUE...SW winds 10 kt. Seas 3 to 5 ft. Period 13 seconds.
.TUE NIGHT...SW to W winds 10 kt. Seas 3 to 5 ft. Period
12 seconds.
.WED...SW to W winds 10 kt. Seas 3 to 5 ft. Period 12 seconds.
.WED NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.THU...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.THU NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds.

$$

PMZ117-122015-
East Panama and Colombia including the Gulf of Panama-
105 AM PDT Sun Oct 12 2025

.TODAY...SW winds 10 kt. Seas 4 to 6 ft in SW to W swell. Period
16 seconds. Scattered showers and isolated tstms through the
day.
.TONIGHT...SW winds 10 kt. Seas 3 to 5 ft. Period 15 seconds.
Scattered showers and isolated tstms through the night.
.MON...SW winds 10 kt. Seas 3 to 5 ft. Period 15 seconds.
Scattered showers and isolated tstms through the day.
.MON NIGHT...SW to W winds 10 kt. Seas 3 to 5 ft. Period
14 seconds. Scattered tstms through the night.
.TUE...SW winds 10 kt. Seas 2 to 4 ft. Period 13 seconds.
.TUE NIGHT...SW to W winds 10 to 15 kt. Seas 2 to 4 ft. Period
12 seconds.
.WED...SW winds 10 to 15 kt. Seas 3 to 5 ft. Period 12 seconds.
.WED NIGHT...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...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds.

$$

PMZ119-122015-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
105 AM PDT Sun Oct 12 2025

.TODAY...SW winds 10 kt. Seas 4 to 6 ft in SW swell. Period
15 seconds.
.TONIGHT...S to SW winds 10 kt. Seas 3 to 5 ft. Period
15 seconds.
.MON...SW winds 10 kt. Seas 3 to 5 ft. Period 14 seconds.
.MON NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
14 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 3 to 5 ft. Period
12 seconds.
.WED...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.THU...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.THU NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW
swell. Period 15 seconds.

$$

PMZ121-122015-
Ecuador between 250 and 500 nm offshore-
105 AM PDT Sun Oct 12 2025

.TODAY...S winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
15 seconds.
.TONIGHT...S winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 14 seconds.
.MON...SE to S winds 10 kt. Seas 3 to 5 ft. Period 14 seconds.
.MON NIGHT...SE to S winds 10 kt. Seas 3 to 5 ft. Period
13 seconds.
.TUE...S winds 10 kt. Seas 2 to 4 ft. Period 12 seconds.
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. Period
12 seconds.
.WED...S winds 10 to 15 kt. Seas 3 to 5 ft. Period 14 seconds.
.WED NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds.
.THU...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 15 seconds.
.THU NIGHT...S winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds.

$$

PMZ123-122015-
Offshore Galapagos Islands-
105 AM PDT Sun Oct 12 2025

.TODAY...SE to S winds 10 to 15 kt. Seas 4 to 6 ft in SW swell.
Period 14 seconds.
.TONIGHT...SE to S winds 10 kt. Seas 4 to 6 ft in SW swell.
Period 14 seconds.
.MON...SE to S winds 10 kt. Seas 3 to 5 ft. Period 13 seconds.
.MON NIGHT...SE to S winds 10 kt. Seas 3 to 5 ft. Period
13 seconds.
.TUE...SE to S winds 10 kt. Seas 2 to 4 ft. Period 12 seconds.
.TUE NIGHT...SE to S winds 10 kt. Seas 3 to 5 ft. Period
13 seconds.
.WED...SE to S winds 10 to 15 kt. Seas 3 to 5 ft. Period
14 seconds.
.WED NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.THU...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.THU NIGHT...S winds 10 kt. Seas 4 to 6 ft in SW swell. Period
15 seconds.

$$

Forecaster Konarik