917 FZPN28 KNHC 210941 OFFPZ8 Offshore Waters Forecast NWS National Hurricane Center Miami, FL 241 AM PDT Wed May 21 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. PMZ101-212145- Synopsis for the E Pacific within 250 nm of Central America, Colombia, and within 750 nm of Ecuador 241 AM PDT Wed May 21 2025 .SYNOPSIS...Moderate to fresh E to NE winds will develop in the Gulf of Papagayo today, with fresh to occasionally strong winds pulsing tonight through this weekend. Locally rough seas may accompany these winds. Elsewhere, rough seas in SW swell will build south of the Galapagos Islands today. Looking ahead, a long-period Southern Hemisphere swell will progress through the South American offshore waters this weekend, promoting rough seas in the region. $$ PMZ111-212145- Guatemala and El Salvador to 250 nm offshore- 241 AM PDT Wed May 21 2025 .TODAY...Variable winds less than 5 kt, becoming SE 10 kt in the afternoon. Seas 4 to 6 ft in S to SW swell. Period 16 seconds. Scattered showers and isolated tstms through the day. .TONIGHT...Variable winds less than 5 kt. Seas 5 to 7 ft in S to SW swell. Period 19 seconds. .THU...N to NE winds 10 kt, shifting to E in the afternoon. Seas 5 to 7 ft in S to SW swell. Period 18 seconds. .THU NIGHT...SE winds 10 kt in the evening, becoming variable winds less than 5 kt. Seas 5 to 7 ft in S to SW swell. Period 17 seconds. .FRI...NE to E winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period 15 seconds. .FRI NIGHT...NE to E winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period 15 seconds. .SAT...E winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell. Period 15 seconds. .SAT NIGHT...E to SE winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell. Period 15 seconds. .SUN...E to SE winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell. Period 16 seconds. .SUN NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell. Period 17 seconds. $$ PMZ113-212145- El Salvador to North Costa Rica including the Gulfs of Fonseca and Papagayo- 241 AM PDT Wed May 21 2025 .TODAY...Offshore Gulf of Papagayo, NE to E winds 15 to 20 kt, shifting to E 10 kt in the afternoon. Elsewhere, NE winds 10 kt. Seas 3 to 5 ft. Period 16 seconds. .TONIGHT...Offshore Gulf of Papagayo, SE to S winds 10 to 20 kt, shifting to NE to E late. Elsewhere, variable winds less than 5 kt. Seas 4 to 6 ft in S to SW swell. Period 19 seconds. .THU...NE to E winds 15 to 20 kt Offshore Gulf of Papagayo, and NE 10 kt Elsewhere. Seas 5 to 7 ft in S to SW swell. Period 18 seconds. .THU NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft in S to SW swell. Period 17 seconds. Scattered showers and isolated tstms through the night. .FRI...NE to E winds 10 to 20 kt. Seas 5 to 7 ft in S to SW swell. Period 15 seconds. .FRI NIGHT...NE to E winds 10 to 20 kt. Seas 5 to 7 ft in S to SW swell. Period 15 seconds. .SAT...NE to E winds 20 kt Offshore Gulf of Papagayo, and NE to E 10 to 15 kt Elsewhere. Seas 6 to 8 ft in S to SW swell. Period 15 seconds. .SAT NIGHT...SE winds 15 to 25 kt. Seas 6 to 8 ft in S to SW swell. Period 15 seconds. .SUN...E to SE winds 15 to 20 kt. Seas 6 to 8 ft in S to SW swell. Period 16 seconds. .SUN NIGHT...SE to S winds 15 to 20 kt. Seas 6 to 8 ft in S to SW swell. Period 16 seconds. $$ PMZ115-212145- North Costa Rica to West Panama to 250 nm offshore- 241 AM PDT Wed May 21 2025 .TODAY...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW swell. Period 16 seconds. Scattered showers and isolated tstms through the day. .TONIGHT...Near the Azuero Peninsula, E winds 10 kt late. Variable winds less than 5 kt in the evening. Elsewhere, variable winds less than 5 kt. Seas 5 to 7 ft in S to SW swell. Period 19 seconds. .THU...Near the Azuero Peninsula, NE to E winds 10 kt in the morning. Variable winds less than 5 kt in the afternoon. Elsewhere, variable winds less than 5 kt in the morning. Seas 5 to 7 ft in S to SW swell. Period 18 seconds. .THU NIGHT...Variable winds less than 5 kt. Seas 5 to 7 ft in S to SW swell. Period 17 seconds. .FRI...Variable winds less than 5 kt. Seas 5 to 7 ft in S to SW swell. Period 15 seconds. .FRI NIGHT...Variable winds less than 5 kt. Seas 5 to 7 ft in S to SW swell. Period 15 seconds. .SAT...Variable winds less than 5 kt. Seas 6 to 8 ft in S to SW swell. Period 15 seconds. .SAT NIGHT...Variable winds less than 5 kt Near the Azuero Peninsula, and SW to W 10 kt Elsewhere. Seas 6 to 8 ft in S to SW swell. Period 15 seconds. .SUN...Variable winds less than 5 kt Near the Azuero Peninsula, and SW 10 kt Elsewhere. Seas 6 to 8 ft in S to SW swell. Period 17 seconds. .SUN NIGHT...Variable winds less than 5 kt. Seas 6 to 8 ft in S to SW swell. Period 18 seconds. $$ PMZ117-212145- East Panama and Colombia including the Gulf of Panama- 241 AM PDT Wed May 21 2025 .TODAY...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW swell. Period 16 seconds. .TONIGHT...Gulf of Panama, N to NE winds 10 kt late. Variable winds less than 5 kt in the evening. Elsewhere, variable winds less than 5 kt. Seas 5 to 7 ft in S to SW swell. Period 19 seconds. .THU...Gulf of Panama, NE winds 10 kt in the morning, becoming variable winds less than 5 kt. Elsewhere, variable winds less than 5 kt, becoming W to NW 10 kt in the afternoon. Seas 5 to 7 ft in SW swell. Period 19 seconds. .THU NIGHT...W to NW winds 10 kt, shifting to SW late. Seas 5 to 7 ft in SW swell. Period 17 seconds. Scattered showers and isolated tstms through the night. .FRI...Variable winds less than 5 kt Gulf of Panama, and S to SW 10 kt Elsewhere. Seas 6 to 8 ft in SW swell. Period 15 seconds. .FRI NIGHT...Variable winds less than 5 kt Gulf of Panama, and SW 10 kt Elsewhere. Seas 6 to 8 ft in SW swell. Period 15 seconds. .SAT...Variable winds less than 5 kt Gulf of Panama, and SW 10 kt Elsewhere. Seas 6 to 8 ft in SW swell. Period 15 seconds. .SAT NIGHT...Variable winds less than 5 kt Gulf of Panama, and S to SW 10 kt Elsewhere. Seas 6 to 8 ft in SW swell. Period 15 seconds. .SUN...Variable winds less than 5 kt Gulf of Panama, and SW 10 kt Elsewhere. Seas 6 to 9 ft in S to SW swell. Period 17 seconds. .SUN NIGHT...Variable winds less than 5 kt Gulf of Panama, and SW 10 kt Elsewhere. Seas 6 to 9 ft in S to SW swell. Period 17 seconds. $$ PMZ119-212145- Ecuador including the Gulf of Guayaquil to 250 nm offshore- 241 AM PDT Wed May 21 2025 .TODAY...Gulf of Guayaquil, variable winds less than 5 kt, becoming W 10 kt in the afternoon. Elsewhere, S to SW winds 10 kt. Seas 6 to 8 ft in SW swell. Period 19 seconds. .TONIGHT...S to SW winds 10 kt. Seas 6 to 8 ft in SW swell. Period 18 seconds. .THU...SW winds 10 to 15 kt. Seas 6 to 8 ft in SW swell. Period 17 seconds. .THU NIGHT...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in SW swell. Period 16 seconds. .FRI...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in SW swell. Period 15 seconds. .FRI NIGHT...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in SW swell. Period 15 seconds. .SAT...S to SW winds 10 to 15 kt. Seas 6 to 9 ft in SW swell. Period 15 seconds. .SAT NIGHT...S to SW winds 10 to 15 kt. Seas 6 to 9 ft in SW swell. Period 17 seconds. .SUN...S to SW winds 10 to 15 kt. Seas 6 to 9 ft in S to SW swell. Period 18 seconds. .SUN NIGHT...S to SW winds 10 to 15 kt. Seas 6 to 9 ft in S to SW swell. Period 16 seconds. $$ PMZ121-212145- Ecuador between 250 and 500 nm offshore- 241 AM PDT Wed May 21 2025 .TODAY...SE to S winds 10 kt. Seas 6 to 8 ft in S to SW swell. Period 19 seconds. .TONIGHT...Variable winds less than 5 kt, becoming SE 10 kt late. Seas 6 to 8 ft in S to SW swell. Period 18 seconds. .THU...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period 16 seconds. .THU NIGHT...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell. Period 16 seconds. .FRI...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell. Period 15 seconds. .FRI NIGHT...S winds 10 kt. Seas 6 to 8 ft in S to SW swell. Period 15 seconds. .SAT...SE to S winds 10 to 15 kt. Seas 6 to 9 ft in S to SW swell. Period 15 seconds. .SAT NIGHT...SE to S winds 10 kt. Seas 6 to 9 ft in S to SW swell. Period 17 seconds. .SUN...SE to S winds 10 to 15 kt. Seas 6 to 9 ft in S to SW swell. Period 18 seconds. .SUN NIGHT...SE to S winds 10 to 15 kt. Seas 6 to 9 ft in S to SW swell. Period 16 seconds. $$ PMZ123-212145- Offshore Galapagos Islands- 241 AM PDT Wed May 21 2025 .TODAY...SE winds 10 to 15 kt. Seas 6 to 9 ft in SW swell. Period 18 seconds. .TONIGHT...SE winds 10 kt. Seas 6 to 8 ft in SW swell. Period 17 seconds. .THU...SE to S winds 10 kt. Seas 6 to 8 ft in SW swell. Period 16 seconds. .THU NIGHT...SE to S winds 10 kt. Seas 6 to 8 ft in SW swell. Period 15 seconds. .FRI...SE to S winds 10 kt. Seas 6 to 9 ft in SW swell. Period 15 seconds. .FRI NIGHT...S winds 10 kt. Seas 6 to 8 ft in SW swell. Period 15 seconds. .SAT...S winds 10 to 15 kt. Seas 6 to 9 ft in S to SW swell. Period 16 seconds. .SAT NIGHT...SE to S winds 10 kt. Seas 6 to 9 ft in S to SW swell. Period 17 seconds. .SUN...SE to S winds 10 to 15 kt. Seas 6 to 9 ft in S to SW swell. Period 17 seconds. .SUN NIGHT...SE to S winds 10 kt. Seas 6 to 9 ft in S to SW swell. Period 16 seconds. $$ Forecaster ADAMS