858
FZPN28 KNHC 311613
OFFPZ8
Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
913 AM PDT Sat May 31 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.
PMZ101-010415-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
913 AM PDT Sat May 31 2025
.SYNOPSIS...A long-period, southern hemisphere swell will
propagate northeastward through the equatorial waters this
weekend, promoting rough seas offshore of Ecuador through Sun,
and well offshore of Guatemala and El Salvador on Sun. Seas will
subside early next week. Looking ahead, an area of low pressure
is likely to form by the middle part of next week offshore of the
coasts of Central America and southern Mexico. Environmental
conditions appear favorable for some development of this system
thereafter, and a tropical depression could form late next week
while it moves generally westward to west-northwestward at around
5 to 10 mph. There is a medium chance of development in the next
7 days.
$$
PMZ111-010415-
Guatemala and El Salvador to 250 nm offshore-
913 AM PDT Sat May 31 2025
.TODAY...N to NE winds 10 kt in the afternoon. Seas 5 to 7 ft in
S to SW swell. Period 18 seconds.
.TONIGHT...SW to W winds 10 kt in the evening, becoming variable
winds less than 5 kt. Seas 6 to 8 ft in S to SW swell. Period
17 seconds. Scattered showers and isolated tstms through the
night.
.SUN...N to NE winds 10 kt, shifting to E in the afternoon.
Seas 6 to 8 ft in S to SW swell. Period 16 seconds. Scattered
showers and isolated tstms through the day.
.SUN NIGHT...Variable winds less than 5 kt. Seas 6 to 8 ft in S
to SW swell. Period 16 seconds.
.MON...NE to E winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds.
.MON NIGHT...E to SE winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds.
.TUE...NE to E winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds.
.TUE NIGHT...SE to S winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 14 seconds.
.WED...E winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period
14 seconds.
.WED NIGHT...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds.
$$
PMZ113-010415-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
913 AM PDT Sat May 31 2025
.TODAY...NE to E winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 18 seconds. Scattered showers and isolated tstms
through the day.
.TONIGHT...SE winds 10 kt. Seas 6 to 8 ft in S to SW swell.
Period 17 seconds. Scattered showers and isolated tstms through
the night.
.SUN...E to SE winds 10 kt. Seas 6 to 8 ft in S to SW swell.
Period 16 seconds. Scattered showers and isolated tstms through
the day.
.SUN NIGHT...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 16 seconds. Scattered showers and isolated tstms
through the night.
.MON...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds.
.MON NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW
swell. Period 15 seconds.
.TUE...Variable winds less than 5 kt Offshore Gulf of Papagayo,
and S to SW 10 to 15 kt Elsewhere. Seas 5 to 7 ft in SW swell.
Period 15 seconds.
.TUE NIGHT...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 14 seconds.
.WED...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell.
Period 14 seconds.
.WED NIGHT...SW winds 15 to 20 kt. Seas 5 to 7 ft. Period
12 seconds.
$$
PMZ115-010415-
North Costa Rica to West Panama to 250 nm offshore-
913 AM PDT Sat May 31 2025
.TODAY...SW winds 10 to 15 kt in the afternoon. Seas 5 to 7 ft.
Period 18 seconds. Numerous showers and scattered tstms through
the day.
.TONIGHT...SW to W winds 10 kt. Seas 6 to 8 ft in S to SW swell.
Period 17 seconds. Scattered tstms through the night.
.SUN...Near the Azuero Peninsula, variable winds less than 5 kt,
becoming SW to W 10 kt in the afternoon. Elsewhere, SW winds
10 kt. Seas 6 to 8 ft in SW swell. Period 16 seconds. Scattered
showers and isolated tstms through the day.
.SUN NIGHT...Variable winds less than 5 kt Near the Azuero
Peninsula, and SW 10 kt Elsewhere. Seas 5 to 7 ft in SW swell.
Period 16 seconds. Scattered showers and isolated tstms through
the night.
.MON...Variable winds less than 5 kt Near the Azuero Peninsula,
and S to SW 10 kt Elsewhere. Seas 5 to 7 ft in SW swell. Period
15 seconds.
.MON NIGHT...SW winds 10 kt. Seas 5 to 7 ft in SW swell. Period
15 seconds.
.TUE...SW winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period
15 seconds.
.TUE NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.WED...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.WED NIGHT...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW
swell. Period 14 seconds.
$$
PMZ117-010415-
East Panama and Colombia including the Gulf of Panama-
913 AM PDT Sat May 31 2025
.TODAY...SW winds 10 to 15 kt in the afternoon. Seas 5 to 7 ft.
Period 18 seconds. Scattered tstms through the day.
.TONIGHT...SW winds 10 kt. Seas 5 to 7 ft in SW swell. Period
17 seconds. Scattered tstms through the night.
.SUN...SW winds 10 kt. Seas 6 to 8 ft in SW swell. Period
17 seconds. Numerous showers and scattered tstms through the
day.
.SUN NIGHT...SW winds 10 kt. Seas 5 to 7 ft in SW swell. Period
16 seconds. Scattered tstms through the night.
.MON...S to SW winds 10 kt. Seas 5 to 7 ft in SW swell. Period
15 seconds.
.MON NIGHT...SW winds 10 kt. Seas 5 to 7 ft in SW swell. Period
15 seconds.
.TUE...SW winds 10 kt. Seas 4 to 6 ft in SW swell. Period
14 seconds.
.TUE NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
14 seconds.
.WED...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds.
.WED NIGHT...SW winds 10 kt. Seas 4 to 6 ft in SW swell. Period
13 seconds.
$$
PMZ119-010415-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
913 AM PDT Sat May 31 2025
.TODAY...SW winds 10 kt in the afternoon. Seas 6 to 8 ft in SW
swell. Period 17 seconds.
.TONIGHT...S to SW winds 10 kt. Seas 6 to 8 ft in SW swell.
Period 17 seconds.
.SUN...Gulf of Guayaquil, variable winds less than 5 kt,
becoming W 10 kt in the afternoon. Elsewhere, S to SW winds
10 kt. Seas 6 to 8 ft in SW swell. Period 16 seconds.
.SUN NIGHT...S to SW winds 10 kt. Seas 5 to 7 ft in SW swell.
Period 15 seconds.
.MON...S to SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell.
Period 15 seconds.
.MON NIGHT...S to SW winds 10 kt. Seas 4 to 6 ft in SW swell.
Period 14 seconds.
.TUE...S to SW winds 10 kt. Seas 4 to 6 ft in SW swell. Period
14 seconds.
.TUE NIGHT...S to SW winds 10 kt. Seas 4 to 6 ft in SW swell.
Period 14 seconds.
.WED...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds.
.WED NIGHT...S to SW winds 10 kt. Seas 5 to 7 ft in SW swell.
Period 15 seconds.
$$
PMZ121-010415-
Ecuador between 250 and 500 nm offshore-
913 AM PDT Sat May 31 2025
.TODAY...S winds 10 kt in the afternoon. 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 9 ft in S to SW
swell. Period 16 seconds.
.SUN...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 16 seconds.
.SUN NIGHT...S winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds.
.MON...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 15 seconds.
.MON NIGHT...SE to S winds 10 kt. Seas 5 to 7 ft in SW swell.
Period 14 seconds.
.TUE...SE to S winds 10 kt. Seas 4 to 6 ft in SW swell. Period
14 seconds.
.TUE NIGHT...SE to S winds 10 kt. Seas 4 to 6 ft in SW swell.
Period 13 seconds.
.WED...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 15 seconds.
.WED NIGHT...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 16 seconds.
$$
PMZ123-010415-
Offshore Galapagos Islands-
913 AM PDT Sat May 31 2025
.TODAY...SE to S winds 10 kt in the afternoon. Seas 6 to 10 ft
in S to SW swell. Period 16 seconds.
.TONIGHT...SE to S winds 10 kt. Seas 6 to 9 ft in S to SW swell.
Period 16 seconds.
.SUN...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 16 seconds.
.SUN NIGHT...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S to
SW swell. Period 15 seconds.
.MON...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds.
.MON NIGHT...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW
swell. Period 14 seconds.
.TUE...SE to S winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 13 seconds.
.TUE NIGHT...S winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 13 seconds.
.WED...S winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period
15 seconds.
.WED NIGHT...SE to S winds 10 kt. Seas 6 to 8 ft in S to SW
swell. Period 16 seconds.
$$
Forecaster ADAMS