000
FZPN28 KNHC 032153
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
253 PM PDT Tue Oct 3 2023

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.

PMZ101-041000-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
253 PM PDT Tue Oct 3 2023

.SYNOPSIS...Winds will be moderate or weaker across the offshore
waters through most of the week, except for locally fresh SW 
winds from the Equator to 10N through Wed. New long-period 
southerly swell will build seas slightly offshore Ecuador to the 
Galapagos Islands through Wed night, with mainly moderate seas 
elsewhere. Looking ahead, an area of low pressure is expected to 
form a few hundred nautical miles south of the coast of Central 
America during the next few days. Afterward, environmental 
conditions are expected to be conducive for gradual development 
of this system, and a tropical depression is likely to form late 
this week or over the weekend while the system moves slowly 
westward or west-northwestward.

$$

PMZ111-041000-
Guatemala and El Salvador to 250 nm offshore-
253 PM PDT Tue Oct 3 2023

.TONIGHT...E winds 10 kt, shifting to N to NE late.
Seas 4 to 6 ft in S swell. Period 17 seconds. Scattered showers
and isolated tstms through the night. 
.WED...NE winds 10 kt, shifting to SE to S in the afternoon.
Seas 4 to 6 ft. Period 17 seconds. Scattered showers and
isolated tstms through the day. 
.WED NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 16 seconds. Scattered showers and isolated
tstms through the night. 
.THU...S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 16 seconds. Scattered showers and isolated tstms through
the day. 
.THU NIGHT...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in S to
SW swell. Period 15 seconds. 
.FRI...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 14 seconds. 
.FRI NIGHT...S to SW winds 15 to 20 kt. Seas 5 to 7 ft. Period
13 seconds. 
.SAT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 13 seconds. 
.SAT NIGHT...W winds 10 kt. Seas 6 to 8 ft in S swell. Period
13 seconds. 
.SUN...NW winds 10 kt. Seas 6 to 8 ft in S to SW swell. Period
12 seconds. 
.SUN NIGHT...W to NW winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 11 seconds. 

$$

PMZ113-041000-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
253 PM PDT Tue Oct 3 2023

.TONIGHT...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in S swell.
Period 11 seconds. Scattered showers and isolated tstms. 
.WED...S to SW winds 10 kt Offshore Gulf of Papagayo, and S to
SW 15 to 20 kt Elsewhere. Seas 5 to 7 ft in S to SW swell.
Period 11 seconds. Numerous showers and scattered tstms through
the day. 
.WED NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 16 seconds. Scattered showers and isolated tstms. 
.THU...SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 16 seconds. Scattered showers and isolated tstms. 
.THU NIGHT...SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 15 seconds. 
.FRI...SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 14 seconds. 
.FRI NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 13 seconds. 
.SAT...W winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 13 seconds. 
.SAT NIGHT...W to NW winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 13 seconds. 
.SUN...NW winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
13 seconds. 
.SUN NIGHT...NW to N winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 11 seconds. 

$$

PMZ115-041000-
North Costa Rica to West Panama to 250 nm offshore-
253 PM PDT Tue Oct 3 2023

.TONIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 17 seconds. Scattered showers and isolated tstms. 
.WED...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 16 seconds. Numerous showers and scattered tstms. 
.WED NIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 16 seconds. Scattered showers and isolated tstms
through the night. 
.THU...SW to W winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 16 seconds. Scattered showers and isolated tstms through
the day. 
.THU NIGHT...SW to W winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds. 
.FRI...SW winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period
14 seconds. 
.FRI NIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 13 seconds. 
.SAT...W winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
13 seconds. 
.SAT NIGHT...W winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 13 seconds. 
.SUN...Variable winds less than 5 kt Near the Azuero Peninsula,
and W 10 kt Elsewhere. Seas 3 to 5 ft. Period 13 seconds. 
.SUN NIGHT...W to NW winds 10 kt. Seas 3 to 5 ft. Period
13 seconds. 

$$

PMZ117-041000-
East Panama and Colombia including the Gulf of Panama-
253 PM PDT Tue Oct 3 2023

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

$$

PMZ119-041000-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
253 PM PDT Tue Oct 3 2023

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

$$

PMZ121-041000-
Ecuador between 250 and 500 nm offshore-
253 PM PDT Tue Oct 3 2023

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

$$

PMZ123-041000-
Offshore Galapagos Islands-
253 PM PDT Tue Oct 3 2023

.TONIGHT...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 16 seconds. 
.WED...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 16 seconds. 
.WED NIGHT...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S to
SW swell. Period 16 seconds. 
.THU...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 15 seconds. 
.THU NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S
swell. Period 12 seconds. 
.FRI...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 11 seconds. 
.FRI NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S
swell. Period 11 seconds. 
.SAT...SE winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds. 
.SAT NIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds. 
.SUN...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds. 
.SUN NIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds. 

$$

Forecaster Hagen