000
FZPN28 KNHC 050253
OFFPZ8

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
753 PM PDT Thu Jun 4 2026

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.

PMZ101-051500-
Synopsis for the E Pacific within 250 nm of Central America,
Colombia, and within 750 nm of Ecuador
753 PM PDT Thu Jun 4 2026

.SYNOPSIS...SW swell will continue to propagate across the
regional waters, maintaining moderate to rough seas through Sat
morning, with highest seas around 8 ft expected between Ecuador 
and the Galapagos Islands. A new set of larger SW swell is
expected to arrive by Sat night, propagating NE into early next
week and building seas to 7 to 10 ft at a minimum. Otherwise, a 
trough of low pressure offshore of Central America is producing 
some disorganized shower and thunderstorm activity as described
above. Environmental conditions appear conducive for development
of this system, and a tropical depression is likely to form 
during the next several days while it moves slowly northward.
Regardless of development, monsoonal SW to W winds will 
increase south of the monsoon trough over the weekend. Currently,
this system has a high chance of tropical cyclone formation in 7
days.

$$

PMZ111-051500-
Guatemala and El Salvador to 250 nm offshore-
753 PM PDT Thu Jun 4 2026

.TONIGHT...E to 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. 
.FRI...E to SE winds 10 kt. Seas 6 to 8 ft in S to SW swell.
Period 17 seconds. Scattered showers and isolated tstms through
the day. 
.FRI NIGHT...SE winds 10 kt. Seas 6 to 9 ft in S to SW swell.
Period 17 seconds. Scattered showers and isolated tstms through
the night. 
.SAT...NE winds 10 to 15 kt. Seas 6 to 9 ft in S to SW swell.
Period 16 seconds. Scattered showers and isolated tstms. 
.SAT NIGHT...NW to N winds 15 to 20 kt. Seas 7 to 11 ft in S to
SW swell. Period 12 seconds. 
.SUN...SW winds 20 to 25 kt. Seas 8 to 12 ft in S to SW swell.
Period 12 seconds. 
.SUN NIGHT...SW winds 20 to 25 kt. Seas 9 to 14 ft in S to SW
swell. Period 10 seconds. 
.MON...SW winds 20 to 25 kt. Seas 9 to 14 ft in S to SW swell.
Period 12 seconds. 
.MON NIGHT...SW winds 20 to 25 kt. Seas 9 to 14 ft in S to SW
swell. Period 14 seconds. 
.TUE...SW winds 15 to 20 kt. Seas 9 to 14 ft in S to SW swell.
Period 15 seconds. 
.TUE NIGHT...SW winds 10 to 15 kt. Seas 8 to 12 ft in S to SW
swell. Period 15 seconds. 

$$

PMZ113-051500-
El Salvador to North Costa Rica including the Gulfs of Fonseca
and Papagayo-
753 PM PDT Thu Jun 4 2026

.TONIGHT...S to SW winds 10 kt. Seas 6 to 8 ft in S to SW swell.
Period 17 seconds. Scattered showers and isolated tstms through
the night. 
.FRI...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 17 seconds. Scattered tstms. 
.FRI NIGHT...S winds 10 kt Offshore Gulf of Papagayo, and SW
15 to 20 kt Elsewhere. Seas 6 to 9 ft in S to SW swell. Period
17 seconds. Numerous showers and scattered tstms. 
.SAT...S winds 10 kt Offshore Gulf of Papagayo, and SW 15 to
20 kt Elsewhere. Seas 6 to 9 ft in S to SW swell. Period
16 seconds. Numerous showers and scattered tstms. 
.SAT NIGHT...S winds 10 to 15 kt Offshore Gulf of Papagayo, and
S to SW 20 to 25 kt Elsewhere. Seas 7 to 11 ft in SW swell.
Period 12 seconds. 
.SUN...SE to S winds 10 to 15 kt Offshore Gulf of Papagayo, and
S to SW 20 to 25 kt Elsewhere. Seas 8 to 12 ft in SW to W swell.
Period 12 seconds. 
.SUN NIGHT...S winds 10 to 15 kt Offshore Gulf of Papagayo, and
SW 20 to 25 kt Elsewhere. Seas 9 to 13 ft in SW swell. Period
14 seconds. 
.MON...S to SW winds 10 kt Offshore Gulf of Papagayo, and SW
15 to 20 kt Elsewhere. Seas 9 to 13 ft in S to SW swell. Period
14 seconds. 
.MON NIGHT...SW winds 15 to 20 kt. Seas 9 to 13 ft in S to SW
swell. Period 17 seconds. 
.TUE...SW winds 10 to 15 kt. Seas 9 to 13 ft in S to SW swell.
Period 16 seconds. 
.TUE NIGHT...SW winds 10 kt. Seas 7 to 11 ft in S to SW swell.
Period 15 seconds. 

$$

PMZ115-051500-
North Costa Rica to West Panama to 250 nm offshore-
753 PM PDT Thu Jun 4 2026

.TONIGHT...SW to W winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 17 seconds. Scattered showers and isolated tstms through
the night. 
.FRI...Near the Azuero Peninsula, variable winds less than 5 kt,
becoming SW 10 kt in the afternoon. Elsewhere, SW winds 10 to
15 kt. Seas 6 to 8 ft in S to SW swell. Period 17 seconds.
Scattered tstms. 
.FRI NIGHT...Variable winds less than 5 kt Near the Azuero
Peninsula, and SW to W 10 to 15 kt Elsewhere. Seas 6 to 8 ft in
S to SW swell. Period 17 seconds. Numerous showers and scattered
tstms. 
.SAT...Near the Azuero Peninsula, variable winds less than 5 kt,
becoming W 10 kt in the afternoon. Elsewhere, 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. 
.SAT NIGHT...SW to W winds 15 to 20 kt. Seas 6 to 9 ft in S to
SW swell. Period 14 seconds. 
.SUN...SW to W winds 15 to 20 kt. Seas 7 to 11 ft in SW swell.
Period 12 seconds. 
.SUN NIGHT...SW to W winds 10 to 15 kt. Seas 7 to 11 ft in SW
swell. Period 15 seconds. 
.MON...SW to W winds 10 kt. Seas 7 to 11 ft in S to SW swell.
Period 17 seconds. 
.MON NIGHT...SW to W winds 10 kt. Seas 7 to 11 ft in SW swell.
Period 17 seconds. 
.TUE...S to SW winds 10 kt. Seas 7 to 10 ft in SW swell. Period
16 seconds. 
.TUE NIGHT...S to SW winds 10 kt. Seas 6 to 9 ft in SW swell.
Period 15 seconds. 

$$

PMZ117-051500-
East Panama and Colombia including the Gulf of Panama-
753 PM PDT Thu Jun 4 2026

.TONIGHT...Gulf of Panama, variable winds less than 5 kt.
Elsewhere, W winds 10 kt, shifting to S late. Seas
5 to 7 ft in SW swell. Period 16 seconds. Scattered showers and
isolated tstms through the night. 
.FRI...S 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. 
.FRI NIGHT...SW winds 10 kt. Seas 5 to 7 ft in SW swell. Period
17 seconds. Scattered showers and isolated tstms. 
.SAT...SW winds 10 kt. Seas 5 to 7 ft in SW swell. Period
16 seconds. Scattered showers and isolated tstms through the
day. 
.SAT NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in SW
swell. Period 15 seconds. 
.SUN...SW winds 10 to 15 kt. Seas 5 to 7 ft in SW swell. Period
14 seconds. 
.SUN NIGHT...W winds 10 to 15 kt Gulf of Panama, and variable
less than 5 kt Elsewhere. Seas 6 to 9 ft in SW swell. Period
17 seconds. 
.MON...SW to W winds 10 kt Gulf of Panama, and variable less
than 5 kt Elsewhere. Seas 7 to 10 ft in SW swell. Period
19 seconds. 
.MON NIGHT...SW winds 10 kt Gulf of Panama, and variable less
than 5 kt Elsewhere. Seas 7 to 10 ft in SW swell. Period
18 seconds. 
.TUE...SW winds 10 kt Gulf of Panama, and variable less than
5 kt Elsewhere. Seas 7 to 10 ft in SW swell. Period 16 seconds. 
.TUE NIGHT...S to SW winds 10 kt. Seas 6 to 8 ft in SW swell.
Period 15 seconds. 

$$

PMZ119-051500-
Ecuador including the Gulf of Guayaquil to 250 nm offshore-
753 PM PDT Thu Jun 4 2026

.TONIGHT...S to SW winds 10 kt. Seas 6 to 8 ft in SW swell.
Period 17 seconds. 
.FRI...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 kt. Seas 6 to 8 ft in SW swell. Period 17 seconds. 
.FRI NIGHT...S winds 10 kt. Seas 6 to 8 ft in SW swell. Period
16 seconds. 
.SAT...S winds 10 to 15 kt. Seas 6 to 8 ft in SW swell. Period
15 seconds. 
.SAT NIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft in SW swell.
Period 14 seconds. 
.SUN...S to SW winds 10 to 15 kt. Seas 6 to 9 ft in SW swell.
Period 17 seconds. 
.SUN NIGHT...S winds 10 kt. Seas 7 to 10 ft in SW swell. Period
19 seconds. 
.MON...S winds 10 kt. Seas 7 to 10 ft in SW swell. Period
17 seconds. 
.MON NIGHT...S winds 10 to 15 kt. Seas 7 to 10 ft in SW swell.
Period 16 seconds. 
.TUE...Variable winds less than 5 kt Gulf of Guayaquil, and S
10 to 15 kt Elsewhere. Seas 7 to 10 ft in SW swell. Period
15 seconds. 
.TUE NIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft in SW swell.
Period 14 seconds. 

$$

PMZ121-051500-
Ecuador between 250 and 500 nm offshore-
753 PM PDT Thu Jun 4 2026

.TONIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 17 seconds. 
.FRI...S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 16 seconds. 
.FRI NIGHT...S winds 10 kt. Seas 6 to 8 ft in S to SW swell.
Period 16 seconds. 
.SAT...S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 15 seconds. 
.SAT NIGHT...S winds 10 to 15 kt. Seas 6 to 9 ft in S to SW
swell. Period 15 seconds. 
.SUN...S winds 10 to 15 kt. Seas 7 to 10 ft in S to SW swell.
Period 17 seconds. 
.SUN NIGHT...SE to S winds 10 to 15 kt. Seas 7 to 11 ft in S to
SW swell. Period 18 seconds. 
.MON...SE to S winds 10 to 15 kt. Seas 7 to 11 ft in S to SW
swell. Period 17 seconds. 
.MON NIGHT...SE to S winds 10 to 15 kt. Seas 7 to 10 ft in S to
SW swell. Period 16 seconds. 
.TUE...SE to S winds 10 to 15 kt. Seas 6 to 9 ft in S to SW
swell. Period 15 seconds. 
.TUE NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft in S to SW
swell. Period 14 seconds. 

$$

PMZ123-051500-
Offshore Galapagos Islands-
753 PM PDT Thu Jun 4 2026

.TONIGHT...S winds 10 to 15 kt. Seas 6 to 9 ft in SW swell.
Period 17 seconds. 
.FRI...S winds 10 to 15 kt. Seas 6 to 9 ft in S to SW swell.
Period 16 seconds. 
.FRI NIGHT...S winds 10 to 15 kt. Seas 6 to 9 ft in S to SW
swell. Period 15 seconds. 
.SAT...S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 14 seconds. 
.SAT NIGHT...S winds 10 to 15 kt. Seas 7 to 10 ft in S to SW
swell. Period 17 seconds. 
.SUN...S winds 10 to 15 kt. Seas 7 to 11 ft in S to SW swell.
Period 17 seconds. 
.SUN NIGHT...SE to S winds 10 to 15 kt. Seas 7 to 11 ft in S to
SW swell. Period 17 seconds. 
.MON...SE to S winds 10 to 15 kt. Seas 7 to 11 ft in S to SW
swell. Period 16 seconds. 
.MON NIGHT...SE to S winds 10 to 15 kt. Seas 7 to 10 ft in S to
SW swell. Period 15 seconds. 
.TUE...SE winds 10 to 15 kt. Seas 6 to 8 ft in SW swell. Period
14 seconds. 
.TUE NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft in SW swell.
Period 13 seconds. 

$$

Forecaster Lewitsky