Offshore Forecast
Issued by NWS
Issued by NWS
112 FZPN28 KNHC 191958 OFFPZ8 Offshore Waters Forecast NWS National Hurricane Center Miami, FL 358 PM PDT Thu Sep 19 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. PMZ101-200800- Synopsis for the E Pacific within 250 nm of Central America, Colombia, and within 750 nm of Ecuador 358 PM PDT Thu Sep 19 2024 .SYNOPSIS...Moderate to fresh southwest to west winds south of the monsoon trough will change little through Sun night, then increase to fresh to strong speeds Mon through Tue night. Seas will build during this time in a mix of southwest swell and westerly wind swell. North of 11N, moderate or weaker winds are expected through this evening before the monsoon trough begins to lift northward, and winds shift to westerly and gradually increase to gentle to moderate by Sat. The monsoonal flow is expected to become very active, and dominate the region Fri into early next week. This pattern will generate increasing westerly wind waves moving into the area waters. Periods of very active weather are also expected across area waters north of 06N through the weekend and possibly into next week. $$ PMZ111-200800- Guatemala and El Salvador to 250 nm offshore- 358 PM PDT Thu Sep 19 2024 .TONIGHT...W winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell. Period 14 seconds. Numerous showers and scattered thunderstorms. .FRI...NW to N winds 10 to 15 kt, shifting to SW to W in the afternoon. Seas 5 to 7 ft in S to SW swell. Period 14 seconds. Scattered showers and isolated thunderstorms through the day. .FRI NIGHT...SW winds 10 to 15 kt, shifting to NW late. Seas 5 to 7 ft in SW swell. Period 13 seconds. Numerous showers and scattered thunderstorms. .SAT...N to NE winds 10 kt, shifting to SW to W in the afternoon. Seas 5 to 7 ft in SW swell. Period 13 seconds. Numerous showers and scattered thunderstorms. .SAT NIGHT...W winds 10 kt. Seas 5 to 7 ft in SW to W swell. Period 10 seconds. .SUN...NW winds 10 kt. Seas 4 to 6 ft in SW to W swell. Period 11 seconds. .SUN NIGHT...SW to W winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds. .MON...SW winds 15 to 20 kt. Seas 5 to 7 ft. Period 14 seconds. .MON NIGHT...SW to W winds 15 to 20 kt. Seas 6 to 9 ft in SW to W swell. Period 14 seconds. .TUE...SW to W winds 20 to 25 kt. Seas 7 to 10 ft in SW to W swell. Period 13 seconds. .TUE NIGHT...SW to W winds 20 to 25 kt. Seas 7 to 11 ft in SW to W swell. Period 8 seconds. $$ PMZ113-200800- El Salvador to North Costa Rica including the Gulfs of Fonseca and Papagayo- 358 PM PDT Thu Sep 19 2024 .TONIGHT...Variable winds less than 5 kt Offshore Gulf of Papagayo, and W 10 to 15 kt Elsewhere. Seas 5 to 7 ft. Period 14 seconds. Numerous showers and scattered thunderstorms. .FRI...Offshore Gulf of Papagayo, NE winds 10 kt in the morning, becoming variable winds less than 5 kt. Elsewhere, NW to N winds 10 to 15 kt. Seas 5 to 7 ft. Period 14 seconds. Scattered showers and isolated thunderstorms through the day. .FRI NIGHT...NW to N winds 10 kt. Seas 5 to 7 ft in SW to W swell. Period 13 seconds. Numerous showers and scattered thunderstorms. .SAT...Offshore Gulf of Papagayo, E winds 10 kt in the morning, becoming variable winds less than 5 kt. Elsewhere, NW winds 10 kt, shifting to SW to W in the afternoon. Seas 6 to 8 ft in SW to W swell. Period 13 seconds. Numerous showers and scattered thunderstorms. .SAT NIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in W swell. Period 7 seconds. .SUN...SW winds 10 to 15 kt. Seas 5 to 7 ft in SW to W swell. Period 7 seconds. .SUN NIGHT...SW winds 15 to 20 kt. Seas 5 to 7 ft. Period 7 seconds. .MON...SW winds 15 to 20 kt. Seas 6 to 8 ft in SW swell. Period 7 seconds. .MON NIGHT...SW winds 15 to 20 kt. Seas 6 to 9 ft in SW to W swell. Period 7 seconds. .TUE...SW winds 15 to 20 kt. Seas 7 to 10 ft in W swell. Period 8 seconds. .TUE NIGHT...SW winds 15 to 20 kt. Seas 7 to 10 ft in W swell. Period 8 seconds. $$ PMZ115-200800- North Costa Rica to West Panama to 250 nm offshore- 358 PM PDT Thu Sep 19 2024 .TONIGHT...SW to W winds 10 to 15 kt. Seas 5 to 7 ft in S swell. Period 14 seconds. Winds and seas higher in and near numerous showers and thunderstorms. .FRI...SW to W winds 15 to 20 kt. Seas 5 to 7 ft. Period 14 seconds. Numerous showers and thunderstorms. .FRI NIGHT...SW to W winds 15 to 20 kt. Seas 6 to 8 ft in SW swell. Period 13 seconds. Numerous showers and thunderstorms. .SAT...SW winds 15 to 20 kt. Seas 6 to 8 ft in SW swell. Period 12 seconds. Numerous showers and thunderstorms. .SAT NIGHT...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in SW swell. Period 7 seconds. .SUN...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell. Period 12 seconds. .SUN NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell. Period 12 seconds. .MON...SW winds 15 to 20 kt. Seas 6 to 8 ft in S swell. Period 11 seconds. .MON NIGHT...SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell. Period 11 seconds. .TUE...SW winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell. Period 11 seconds. .TUE NIGHT...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell. Period 10 seconds. $$ PMZ117-200800- East Panama and Colombia including the Gulf of Panama- 358 PM PDT Thu Sep 19 2024 .TONIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds. Winds and seas higher in and near numerous showers and thunderstorms N of 05N. .FRI...SW winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell. Period 14 seconds. Scattered to numerous showers and thunderstorms N of 05N. .FRI NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. Scattered to numerous showers and thunderstorms. .SAT...SW winds 15 to 20 kt. Seas 5 to 7 ft. Period 13 seconds. Scattered to numerous showers and thunderstorms. .SAT NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds. .SUN...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. .SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. .MON...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds. .MON NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds. .TUE...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. .TUE NIGHT...SW to W winds 10 to 15 kt. Seas 3 to 5 ft. Period 13 seconds. $$ PMZ119-200800- Ecuador including the Gulf of Guayaquil to 250 nm offshore- 358 PM PDT Thu Sep 19 2024 .TONIGHT...Gulf of Guayaquil, SW winds 10 to 15 kt in the evening, becoming variable winds less than 5 kt. Elsewhere, S to SW winds 10 to 15 kt. Seas 4 to 6 ft in S to SW swell. Period 14 seconds. .FRI...Gulf of Guayaquil, variable winds less than 5 kt, becoming SW to W 10 to 15 kt in the afternoon. Elsewhere, SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. .FRI NIGHT...Gulf of Guayaquil, SW winds 10 to 15 kt in the evening, becoming variable winds less than 5 kt. Elsewhere, S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period 12 seconds. .SAT...Gulf of Guayaquil, variable winds less than 5 kt, becoming W 10 kt in the afternoon. Elsewhere, SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds. .SAT NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. .SUN...SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. .SUN NIGHT...SW winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 12 seconds. .MON...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds. .MON NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds. .TUE...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period 12 seconds. .TUE NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. $$ PMZ121-200800- Ecuador between 250 and 500 nm offshore- 358 PM PDT Thu Sep 19 2024 .TONIGHT...S winds 10 kt. Seas 4 to 6 ft in S swell. Period 13 seconds. .FRI...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. .FRI NIGHT...S winds 10 kt. Seas 3 to 5 ft. Period 12 seconds. .SAT...S winds 10 kt. Seas 4 to 6 ft in S swell. Period 14 seconds. .SAT NIGHT...S to SW winds 10 kt. Seas 4 to 6 ft in S swell. Period 13 seconds. .SUN...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. .SUN NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. .MON...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds. .MON NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds. .TUE...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. .TUE NIGHT...S winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 13 seconds. $$ PMZ123-200800- Offshore Galapagos Islands- 358 PM PDT Thu Sep 19 2024 .TONIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. .FRI...S winds 10 kt. Seas 4 to 6 ft in S swell. Period 12 seconds. .FRI NIGHT...S winds 10 kt. Seas 4 to 6 ft in S swell. Period 11 seconds. .SAT...SE to S winds 10 kt. Seas 4 to 6 ft in S swell. Period 14 seconds. .SAT NIGHT...S to SW winds 10 kt. Seas 4 to 6 ft in S swell. Period 12 seconds. .SUN...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds. .SUN NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. .MON...S winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds. .MON NIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. .TUE...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. .TUE NIGHT...S winds 10 kt. Seas 4 to 6 ft in S swell. Period 12 seconds. $$ Forecaster Aguirre