076 
FZPN28 KNHC 200848
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
148 AM PDT Mon May 20 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.

PMZ101-202100-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
148 AM PDT Mon May 20 2024

.SYNOPSIS...The monsoon trough extending along 09N-10N will help
to focus scattered showers and isolated thunderstorms over the 
Central America waters south of 09N through Wed. Winds will 
remain moderate to briefly fresh to the south of the monsoon 
trough and moderate or weaker north of the trough through Wed. 
New southwesterly swell is reaching the waters of Ecuador and the
Galapagos Islands this morning, and will support seas of 6 to 8 
ft there through Tue night, while seas build to 5 to 7 ft 
elsewhere this afternoon through Wed. 

$$

PMZ111-202100-
Guatemala and El Salvador to 250 nm offshore-
148 AM PDT Mon May 20 2024

.TODAY...Variable winds less than 5 kt, becoming NE to E 10 kt
in the afternoon. Seas 5 to 7 ft in SW swell. Period 17 seconds.
Haze.
.TONIGHT...SE to S winds 10 kt in the evening, becoming variable
winds less than 5 kt. Seas 5 to 7 ft in SW swell. Period
17 seconds. Haze.
.TUE...Variable winds less than 5 kt, becoming SW 10 kt in the
afternoon. Seas 5 to 7 ft in SW swell. Period 16 seconds.
Scattered showers and isolated tstms through the day. 
.TUE NIGHT...SW winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 16 seconds. 
.WED...W to NW winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds. 
.WED NIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 14 seconds. 
.THU...W winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
14 seconds. 
.THU NIGHT...SW winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 14 seconds. 
.FRI...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW
swell. Period 13 seconds. 
.FRI NIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in S
swell. Period 13 seconds. 

$$

PMZ113-202100-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
148 AM PDT Mon May 20 2024

.TODAY...N to NE winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 17 seconds. Haze. Scattered showers and isolated tstms. 
.TONIGHT...S to SW winds 10 kt, shifting to NW late.
Seas 6 to 8 ft in SW swell. Period 17 seconds. Haze through the
night. Scattered showers and isolated tstms through the night. 
.TUE...Offshore Gulf of Papagayo, NE to E winds 10 kt in the
morning, becoming variable winds less than 5 kt. Elsewhere, N
winds 10 kt, shifting to SW to W in the afternoon. Seas 6 to
8 ft in SW swell. Period 17 seconds. Scattered showers and
isolated tstms through the day. 
.TUE NIGHT...Variable winds less than 5 kt Offshore Gulf of
Papagayo, and W 10 to 15 kt Elsewhere. Seas 5 to 7 ft in SW
swell. Period 16 seconds. Scattered showers and isolated tstms
through the night. 
.WED...NW winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period
15 seconds. 
.WED NIGHT...SW to W winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds. 
.THU...Variable winds less than 5 kt Offshore Gulf of Papagayo,
and W 10 kt Elsewhere. Seas 5 to 7 ft in S swell. Period
14 seconds. 
.THU NIGHT...SW winds 10 kt. Seas 4 to 6 ft in S swell. Period
14 seconds. 
.FRI...Variable winds less than 5 kt Offshore Gulf of Papagayo,
and SW to W 10 kt Elsewhere. Seas 4 to 6 ft in S swell. Period
13 seconds. 
.FRI NIGHT...SW winds 10 kt. Seas 4 to 6 ft in S swell. Period
13 seconds. 

$$

PMZ115-202100-
North Costa Rica to West Panama to 250 nm offshore-
148 AM PDT Mon May 20 2024

.TODAY...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in SW swell.
Period 17 seconds. Scattered tstms through the day. 
.TONIGHT...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in SW
swell. Period 17 seconds. Scattered showers and isolated tstms
through the night. 
.TUE...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 17 seconds. Scattered tstms through the day. 
.TUE NIGHT...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in S to
SW swell. Period 16 seconds. Numerous showers and scattered
tstms through the night. 
.WED...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 15 seconds. 
.WED NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 15 seconds. 
.THU...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 14 seconds. 
.THU NIGHT...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in S to
SW swell. Period 14 seconds. 
.FRI...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 13 seconds. 
.FRI NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds. 

$$

PMZ117-202100-
East Panama and Colombia including the Gulf of Panama-
148 AM PDT Mon May 20 2024

.TODAY...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in SW swell.
Period 17 seconds. Scattered showers and isolated tstms through
the day. 
.TONIGHT...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in SW
swell. Period 17 seconds. Numerous showers and scattered tstms
through the night. 
.TUE...SW winds 10 to 15 kt. Seas 6 to 8 ft in SW swell. Period
17 seconds. Numerous showers and scattered tstms through the
day. 
.TUE NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 16 seconds. Scattered tstms through the night. 
.WED...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds. 
.WED NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds. 
.THU...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 14 seconds. 
.THU NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 13 seconds. 
.FRI...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. 
.FRI NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds. 

$$

PMZ119-202100-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
148 AM PDT Mon May 20 2024

.TODAY...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in SW swell.
Period 17 seconds. 
.TONIGHT...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in SW
swell. Period 17 seconds. 
.TUE...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in SW swell.
Period 16 seconds. 
.TUE NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 16 seconds. 
.WED...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds. 
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 14 seconds. 
.THU...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 13 seconds. 
.THU NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds. 
.FRI...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
13 seconds. 
.FRI NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
12 seconds. 

$$

PMZ121-202100-
Ecuador between 250 and 500 nm offshore-
148 AM PDT Mon May 20 2024

.TODAY...S winds 10 to 15 kt. Seas 6 to 9 ft in S to SW swell.
Period 17 seconds. 
.TONIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 17 seconds. 
.TUE...S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 16 seconds. 
.TUE NIGHT...S winds 10 kt. Seas 6 to 8 ft in S to SW swell.
Period 16 seconds. 
.WED...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds. 
.WED NIGHT...S winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 14 seconds. 
.THU...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 13 seconds. 
.THU NIGHT...S winds 10 kt. Seas 4 to 6 ft in S swell. Period
13 seconds. 
.FRI...SE to S winds 10 kt. Seas 4 to 6 ft in S swell. Period
12 seconds. 
.FRI NIGHT...SE to S winds 10 kt. Seas 4 to 6 ft in S swell.
Period 12 seconds. 

$$

PMZ123-202100-
Offshore Galapagos Islands-
148 AM PDT Mon May 20 2024

.TODAY...SE to S winds 10 to 15 kt. Seas 6 to 9 ft in S to SW
swell. Period 17 seconds. 
.TONIGHT...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 16 seconds. 
.TUE...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 15 seconds. 
.TUE NIGHT...SE to S winds 10 kt. Seas 6 to 8 ft in S to SW
swell. Period 15 seconds. 
.WED...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 12 seconds. 
.WED NIGHT...SE to S winds 10 kt. Seas 5 to 7 ft in S swell.
Period 12 seconds. 
.THU...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 12 seconds. 
.THU NIGHT...SE to S winds 10 kt. Seas 4 to 6 ft in S swell.
Period 12 seconds. 
.FRI...SE to S winds 10 kt. Seas 5 to 7 ft in S swell. Period
12 seconds. 
.FRI NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft in S swell.
Period 13 seconds. 

$$

Forecaster Stripling