852 
FZPN28 KNHC 180311
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
811 PM PDT Fri May 17 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.

PMZ101-181515-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
811 PM PDT Fri May 17 2024

.SYNOPSIS...The monsoon trough extending along 11-12N will help 
force scattered showers and isolated thunderstorms over the 
Central American waters for the next couple of days. Away from 
the isolated thunderstorms, winds should remain moderate or 
weaker through early next week. 

$$

PMZ111-181515-
Guatemala and El Salvador to 250 nm offshore-
811 PM PDT Fri May 17 2024

.TONIGHT...SW winds 10 kt. Seas 4 to 6 ft in SW swell. Period
20 seconds. Scattered showers and isolated tstms through the
night. 
.SAT...Variable winds less than 5 kt. Seas 5 to 7 ft in SW
swell. Period 20 seconds. Scattered showers and isolated tstms
through the day. 
.SAT NIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in SW
swell. Period 19 seconds. 
.SUN...Variable winds less than 5 kt, becoming SE 10 kt in the
afternoon. Seas 4 to 6 ft in SW swell. Period 18 seconds. 
.SUN NIGHT...Variable winds less than 5 kt. Seas 5 to 7 ft in SW
swell. Period 16 seconds. 
.MON...Variable winds less than 5 kt. Seas 5 to 7 ft in SW
swell. Period 16 seconds. 
.MON NIGHT...SW winds 10 kt. Seas 5 to 7 ft in SW swell. Period
16 seconds. 
.TUE...W to NW winds 10 kt. Seas 5 to 7 ft in SW swell. Period
16 seconds. 
.TUE NIGHT...W winds 10 kt. Seas 4 to 6 ft in 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 15 seconds. 

$$

PMZ113-181515-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
811 PM PDT Fri May 17 2024

.TONIGHT...W winds 10 kt. Seas 4 to 6 ft in SW swell. Period
20 seconds. Scattered showers and isolated tstms through the
night. 
.SAT...NW to N winds 10 kt, shifting to W in the afternoon. Seas
4 to 6 ft in SW swell. Period 20 seconds. Scattered showers and
isolated tstms through the day. 
.SAT NIGHT...Offshore Gulf of Papagayo, NW winds 10 kt, shifting
to NE to E 15 to 20 kt late. Elsewhere, W winds
10 kt. Seas 4 to 6 ft in SW swell. Period 19 seconds. 
.SUN...NE to E winds 15 to 20 kt Offshore Gulf of Papagayo, and
N to NE 10 kt Elsewhere. Seas 4 to 6 ft in SW swell. Period
18 seconds. 
.SUN NIGHT...E winds 15 to 20 kt Offshore Gulf of Papagayo, and
SW 10 kt Elsewhere. Seas 4 to 6 ft in SW swell. Period
16 seconds. 
.MON...N to NE winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds. 
.MON NIGHT...W winds 10 kt. Seas 4 to 6 ft in SW swell. Period
17 seconds. 
.TUE...NW to N winds 10 kt. Seas 4 to 6 ft in SW swell. Period
17 seconds. 
.TUE NIGHT...Variable winds less than 5 kt Offshore Gulf of
Papagayo, and SW to W 10 to 15 kt Elsewhere. Seas 4 to 6 ft in
SW swell. Period 16 seconds. 
.WED...Variable winds less than 5 kt Offshore Gulf of Papagayo,
and W to NW 10 kt Elsewhere. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds. 
.WED NIGHT...Variable winds less than 5 kt Offshore Gulf of
Papagayo, and W 10 kt Elsewhere. Seas 4 to 6 ft in S to SW
swell. Period 15 seconds. 

$$

PMZ115-181515-
North Costa Rica to West Panama to 250 nm offshore-
811 PM PDT Fri May 17 2024

.TONIGHT...W winds 10 kt. Seas 3 to 5 ft. Period 20 seconds.
Scattered showers and isolated tstms through the night. 
.SAT...SW to W winds 10 kt. Seas 3 to 5 ft. Period 19 seconds.
Scattered showers and isolated tstms through the day. 
.SAT NIGHT...SW to W winds 10 to 15 kt. Seas 3 to 5 ft. Period
19 seconds. Scattered showers and isolated tstms through the
night. 
.SUN...SW to W winds 10 kt. Seas 3 to 5 ft. Period 18 seconds.
Scattered showers and isolated tstms through the day. 
.SUN NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds. 
.MON...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 17 seconds. 
.MON NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in SW
swell. Period 17 seconds. 
.TUE...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 17 seconds. 
.TUE NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 16 seconds. 
.WED...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds. 
.WED NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds. 

$$

PMZ117-181515-
East Panama and Colombia including the Gulf of Panama-
811 PM PDT Fri May 17 2024

.TONIGHT...SW to W winds 10 to 15 kt. Seas 3 to 5 ft. Period
20 seconds. Scattered showers and isolated tstms through the
night. 
.SAT...SW to W winds 10 kt. Seas 3 to 5 ft. Period 20 seconds.
Scattered showers and isolated tstms through the day. 
.SAT NIGHT...SW winds 10 kt. Seas 3 to 5 ft. Period 19 seconds.
Scattered showers and isolated tstms through the night. 
.SUN...SW winds 10 kt. Seas 3 to 5 ft. Period 18 seconds.
Scattered showers and isolated tstms through the day. 
.SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds. 
.MON...SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell. Period
17 seconds. 
.MON NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in SW
swell. Period 18 seconds. 
.TUE...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 17 seconds. 
.TUE NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds. 
.WED...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 15 seconds. 
.WED NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds. 

$$

PMZ119-181515-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
811 PM PDT Fri May 17 2024

.TONIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
19 seconds. 
.SAT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
19 seconds. 
.SAT NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
18 seconds. 
.SUN...Gulf of Guayaquil, variable winds less than 5 kt,
becoming SW to W 10 to 15 kt in the afternoon. Elsewhere, S to
SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 17 seconds. 
.SUN NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW
swell. Period 17 seconds. 
.MON...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 18 seconds. 
.MON NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW
swell. Period 17 seconds. 
.TUE...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 16 seconds. 
.TUE NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds. 
.WED...S to SW winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 14 seconds. 
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds. 

$$

PMZ121-181515-
Ecuador between 250 and 500 nm offshore-
811 PM PDT Fri May 17 2024

.TONIGHT...SE to S winds 10 kt. Seas 4 to 6 ft in SW swell.
Period 19 seconds. 
.SAT...SE to S winds 10 kt. Seas 4 to 6 ft in SW swell. Period
18 seconds. 
.SAT NIGHT...SE to S winds 10 kt. Seas 5 to 7 ft in SW swell.
Period 17 seconds. 
.SUN...SE to S winds 10 kt. Seas 5 to 7 ft in SW swell. Period
17 seconds. 
.SUN NIGHT...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S to
SW swell. Period 17 seconds. 
.MON...S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 17 seconds. 
.MON NIGHT...S winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 16 seconds. 
.TUE...S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds. 
.TUE NIGHT...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds. 
.WED...SE to S winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 14 seconds. 
.WED NIGHT...SE to S winds 10 kt. Seas 4 to 6 ft in S swell.
Period 14 seconds. 

$$

PMZ123-181515-
Offshore Galapagos Islands-
811 PM PDT Fri May 17 2024

.TONIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
19 seconds. 
.SAT...SE winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period
18 seconds. 
.SAT NIGHT...SE winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 17 seconds. 
.SUN...SE winds 10 kt. Seas 6 to 8 ft in S to SW swell. Period
18 seconds. 
.SUN NIGHT...SE to S winds 10 kt. Seas 6 to 8 ft in S to SW
swell. Period 16 seconds. 
.MON...SE to S winds 10 kt. Seas 6 to 8 ft in S to SW swell.
Period 16 seconds. 
.MON NIGHT...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds. 
.TUE...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 14 seconds. 
.TUE NIGHT...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 13 seconds. 
.WED...SE to S winds 10 kt. Seas 5 to 7 ft in S swell. Period
14 seconds. 
.WED NIGHT...SE to S winds 10 kt. Seas 4 to 6 ft in S swell.
Period 13 seconds. 

$$

Forecaster GR