427 FZPN28 KNHC 191520 OFFPZ8 Offshore Waters Forecast NWS National Hurricane Center Miami, FL 820 AM PDT Mon May 19 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. PMZ101-200330- Synopsis for the E Pacific within 250 nm of Central America, Colombia, and within 750 nm of Ecuador 820 AM PDT Mon May 19 2025 .SYNOPSIS...Gentle to moderate S to SW winds are expected this week south of the monsoon trough from Costa Rica southward through the equatorial waters. North of the monsoon trough, gentle NE to E winds are anticipated. Looking ahead, moderate to fresh NE to E winds will pulse in the Gulf of Papagayo region Thu night into this weekend. Elsewhere, a large long-period SW swell will occur over the equatorial waters by late this week. $$ PMZ111-200330- Guatemala and El Salvador to 250 nm offshore- 820 AM PDT Mon May 19 2025 .TODAY...E to SE winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 14 seconds. Scattered showers and isolated tstms through the day. .TONIGHT...SE to S winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 14 seconds. .TUE...SE winds 10 kt. Seas 3 to 5 ft. Period 14 seconds. Scattered showers and isolated tstms through the day. .TUE NIGHT...S winds 10 kt. Seas 3 to 5 ft. Period 14 seconds. .WED...SE winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 14 seconds. .WED NIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW swell. Period 17 seconds. .THU...NE winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 17 seconds. .THU NIGHT...NE winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 16 seconds. .FRI...NE winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 15 seconds. .FRI NIGHT...NE to E winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period 15 seconds. $$ PMZ113-200330- El Salvador to North Costa Rica including the Gulfs of Fonseca and Papagayo- 820 AM PDT Mon May 19 2025 .TODAY...S winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 14 seconds. Scattered showers and isolated tstms through the day. .TONIGHT...Offshore Gulf of Papagayo, S winds 10 kt in the evening, becoming variable winds less than 5 kt. Elsewhere, S to SW winds 10 kt. Seas 3 to 5 ft. Period 14 seconds. Scattered showers and isolated tstms through the night. .TUE...S winds 10 kt. Seas 3 to 5 ft. Period 14 seconds. Scattered showers and isolated tstms through the day. .TUE NIGHT...Offshore Gulf of Papagayo, variable winds less than 5 kt, becoming NE to E 10 kt late. Elsewhere, variable winds less than 5 kt. Seas 3 to 5 ft in S to SW swell. Period 14 seconds. .WED...NE to E winds 10 to 15 kt Offshore Gulf of Papagayo, and variable less than 5 kt Elsewhere. Seas 3 to 5 ft. Period 14 seconds. .WED NIGHT...E to SE winds 10 to 15 kt Offshore Gulf of Papagayo, and variable less than 5 kt Elsewhere. Seas 4 to 6 ft in S to SW swell. Period 17 seconds. .THU...N to NE winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 17 seconds. .THU NIGHT...E winds 15 to 20 kt Offshore Gulf of Papagayo, and NE to E 10 kt Elsewhere. Seas 4 to 6 ft. Period 16 seconds. .FRI...E winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell. Period 15 seconds. .FRI NIGHT...E to SE winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell. Period 15 seconds. $$ PMZ115-200330- North Costa Rica to West Panama to 250 nm offshore- 820 AM PDT Mon May 19 2025 .TODAY...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW swell. Period 14 seconds. Scattered showers and isolated tstms through the day. .TONIGHT...Variable winds less than 5 kt. Seas 3 to 5 ft in S to SW swell. Period 14 seconds. Scattered showers and isolated tstms through the night. .TUE...Near the Azuero Peninsula, variable winds less than 5 kt. Variable winds less than 5 kt in the morning. Elsewhere, SW to W winds 10 kt in the afternoon. Seas 3 to 5 ft in S to SW swell. Period 14 seconds. Scattered showers and isolated tstms through the day. .TUE NIGHT...Variable winds less than 5 kt. Seas 3 to 5 ft in S to SW swell. Period 13 seconds. Scattered showers and isolated tstms through the night. .WED...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW swell. Period 14 seconds. .WED NIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW swell. Period 17 seconds. .THU...NE winds 10 kt Near the Azuero Peninsula, and variable less than 5 kt Elsewhere. Seas 4 to 6 ft in S to SW swell. Period 17 seconds. .THU NIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW swell. Period 16 seconds. .FRI...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW swell. Period 15 seconds. .FRI NIGHT...Variable winds less than 5 kt. Seas 5 to 7 ft in S to SW swell. Period 15 seconds. $$ PMZ117-200330- East Panama and Colombia including the Gulf of Panama- 820 AM PDT Mon May 19 2025 .TODAY...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW swell. Period 14 seconds. .TONIGHT...Gulf of Panama, variable winds less than 5 kt. Elsewhere, variable winds less than 5 kt, becoming SW 10 kt late. Seas 4 to 6 ft in S to SW swell. Period 14 seconds. Scattered showers and isolated tstms through the night. .TUE...Gulf of Panama, variable winds less than 5 kt, becoming W 10 kt in the afternoon. Elsewhere, SW to W winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 14 seconds. .TUE NIGHT...Variable winds less than 5 kt Gulf of Panama, and SW 10 kt Elsewhere. Seas 4 to 6 ft in S to SW swell. Period 14 seconds. Scattered showers and isolated tstms through the night. .WED...SW to W winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 14 seconds. .WED NIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW swell. Period 16 seconds. .THU...Variable winds less than 5 kt. Seas 4 to 6 ft in SW swell. Period 18 seconds. .THU NIGHT...Variable winds less than 5 kt. Seas 4 to 6 ft in SW swell. Period 16 seconds. .FRI...Variable winds less than 5 kt. Seas 5 to 7 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. $$ PMZ119-200330- Ecuador including the Gulf of Guayaquil to 250 nm offshore- 820 AM PDT Mon May 19 2025 .TODAY...S to SW winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 14 seconds. .TONIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft in S to SW swell. Period 14 seconds. .TUE...S to SW winds 10 to 15 kt. Seas 4 to 6 ft in S to SW swell. Period 13 seconds. .TUE NIGHT...Gulf of Guayaquil, SW winds 10 kt in the evening, becoming variable winds less than 5 kt. Elsewhere, S winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period 16 seconds. .WED...S to SW winds 10 kt. Seas 5 to 7 ft in SW swell. Period 16 seconds. .WED NIGHT...S to SW winds 10 kt. Seas 5 to 7 ft in SW swell. Period 17 seconds. .THU...S to SW winds 10 kt. Seas 5 to 7 ft in SW swell. Period 16 seconds. .THU NIGHT...S to SW winds 10 kt. Seas 5 to 7 ft in SW swell. Period 15 seconds. .FRI...S to SW winds 10 to 15 kt. Seas 6 to 8 ft in SW swell. Period 15 seconds. .FRI NIGHT...S to SW winds 10 to 15 kt. Seas 6 to 9 ft in SW swell. Period 15 seconds. $$ PMZ121-200330- Ecuador between 250 and 500 nm offshore- 820 AM PDT Mon May 19 2025 .TODAY...SE to S winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 14 seconds. .TONIGHT...SE to S winds 10 kt. Seas 4 to 6 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 15 seconds. .TUE NIGHT...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period 20 seconds. .WED...SE winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period 18 seconds. .WED NIGHT...SE winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period 17 seconds. .THU...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period 15 seconds. .THU NIGHT...SE to S winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period 15 seconds. .FRI...SE to S winds 10 kt. Seas 6 to 8 ft in S to SW swell. Period 15 seconds. .FRI NIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell. Period 15 seconds. $$ PMZ123-200330- Offshore Galapagos Islands- 820 AM PDT Mon May 19 2025 .TODAY...SE to S winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 14 seconds. .TONIGHT...SE to S winds 10 kt. Seas 4 to 6 ft in SW swell. Period 14 seconds. .TUE...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in SW swell. Period 16 seconds. .TUE NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft in SW swell. Period 19 seconds. .WED...SE winds 10 kt. Seas 6 to 8 ft in SW swell. Period 15 seconds. .WED NIGHT...SE winds 10 kt. Seas 6 to 8 ft in SW swell. Period 16 seconds. .THU...SE winds 10 kt. Seas 5 to 7 ft in SW swell. Period 15 seconds. .THU NIGHT...SE to S winds 10 kt. Seas 6 to 8 ft in SW swell. Period 15 seconds. .FRI...SE to S winds 10 kt. Seas 6 to 8 ft in SW swell. Period 15 seconds. .FRI NIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell. Period 15 seconds. $$ Forecaster Landsea