Offshore Forecast
Issued by NWS
Issued by NWS
185 FZPN27 KNHC 200940 OFFPZ7 Offshore Waters Forecast NWS National Hurricane Center Miami, FL 240 AM PDT Sun Sep 20 2026 Offshore Waters Forecast for the E Pacific within 250 nm of Mexico 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. PMZ001-202145- Synopsis for the E Pacific within 250 nm of Mexico 240 AM PDT Sun Sep 20 2026 .SYNOPSIS...Invest EP99 is centered near 13N106W. Environmental conditions remain conducive for development, and a tropical depression is likely to form within the next day or so as the system moves generally northward off the coast of southwestern Mexico. There is a high chance of tropical cyclone formation in the next 48 hours. Regardless of development, this system is forecast to bring gale to storm force winds and rough to very rough seas over the offshore waters from Guerrero to Jalisco through Thu night. In anticipation of tropical cyclone development, a storm warning has been issued for this area. Otherwise, moderate to locally fresh NW winds will prevail across the offshore Baja California waters through early Fri morning when conditions in Baja Calaifornia Sur offshores will start to deteriorate due to the proximity of Invest EP99. $$ PMZ009-202145- Mexico Border S to 30N within 60 nm of shore- 240 AM PDT Sun Sep 20 2026 .TODAY...NW winds 10 to 15 kt. Seas 3 to 5 ft. Period 17 seconds. .TONIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. Period 17 seconds. .MON...NW winds 10 to 15 kt. Seas 3 to 5 ft. Period 17 seconds. .MON NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. Period 17 seconds. .TUE...NW winds 10 to 15 kt. Seas 3 to 5 ft. Period 16 seconds. .TUE NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. Period 15 seconds. .WED...NW winds 10 kt. Seas 3 to 5 ft. Period 14 seconds. .WED NIGHT...NW winds 10 kt. Seas 3 to 5 ft. Period 13 seconds. .THU...Variable winds less than 5 kt N of 31N, and NW 10 kt S of 31N. Seas 3 to 5 ft. Period 12 seconds. .THU NIGHT...W to NW winds 10 kt. Seas 3 to 5 ft. Period 12 seconds. $$ PMZ011-202145- 30N to Punta Eugenia within 250 nm of shore- 240 AM PDT Sun Sep 20 2026 .TODAY...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. Period 17 seconds. .TONIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. Period 17 seconds. .MON...NW winds 10 to 15 kt. Seas 4 to 6 ft. Period 17 seconds. .MON NIGHT...NW to N winds 15 to 20 kt. Seas 4 to 6 ft. Period 17 seconds. .TUE...NW to N winds 15 kt. Seas 4 to 6 ft. Period 15 seconds. .TUE NIGHT...NW to N winds 15 to 20 kt. Seas 4 to 6 ft. Period 15 seconds. .WED...NW winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds. .WED NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. .THU...W to NW winds 10 to 15 kt. Seas 4 to 6 ft. Period 12 seconds. .THU NIGHT...W to NW winds 10 to 15 kt. Seas 4 to 6 ft. Period 11 seconds. $$ PMZ013-202145- Punta Eugenia to Cabo San Lazaro within 250 nm offshore- 240 AM PDT Sun Sep 20 2026 .TODAY...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. Period 17 seconds. .TONIGHT...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. Period 17 seconds. .MON...NW to N winds 15 kt. Seas 4 to 6 ft. Period 17 seconds. .MON NIGHT...NW to N winds 15 to 20 kt. Seas 4 to 6 ft. Period 17 seconds. .TUE...NW to N winds 15 to 20 kt. Seas 5 to 7 ft. Period 15 seconds. .TUE NIGHT...NW to N winds 15 to 20 kt. Seas 4 to 6 ft. Period 15 seconds. .WED...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds. .WED NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. .THU...NW winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. .THU NIGHT...NW winds 10 to 15 kt. Seas 5 to 7 ft in NW swell. Period 12 seconds. $$ PMZ014-202145- Cabo San Lazaro to Cabo San Lucas within 350 nm offshore N of 20N- 240 AM PDT Sun Sep 20 2026 .TODAY...N of 22N, NW winds 10 kt. S of 22N, NW winds 10 kt in the morning, becoming variable winds less than 5 kt. Seas 4 to 6 ft in W swell. Period 17 seconds. .TONIGHT...NW winds 10 kt. Seas 4 to 6 ft in SW swell. Period 17 seconds. .MON...NW to N winds 10 to 15 kt. Seas 3 to 5 ft. Period 17 seconds. .MON NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. Period 17 seconds. .TUE...NW to N winds 15 kt. Seas 4 to 6 ft. Period 15 seconds. .TUE NIGHT...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds. .WED...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds. .WED NIGHT...NW to N winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell. Period 13 seconds. .THU...NW to N winds 10 to 15 kt. Seas 6 to 8 ft in SE swell. Period 13 seconds. .THU NIGHT...NW to N winds 10 to 15 kt. Seas 7 to 10 ft in E to SE swell. Period 13 seconds. $$ PMZ016-202145- From 17N to 20N Between 110W and 115W including the Revillagigedo Islands- 240 AM PDT Sun Sep 20 2026 .TODAY...Variable winds less than 5 kt. Seas 4 to 6 ft in S to SW swell. Period 17 seconds. .TONIGHT...Variable winds less than 5 kt, becoming W to NW 10 kt late. Seas 4 to 6 ft in S to SW swell. Period 17 seconds. .MON...NW winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 17 seconds. .MON NIGHT...NW winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period 16 seconds. .TUE...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. Period 15 seconds. .TUE NIGHT...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds. .WED...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. Period 14 seconds. .WED NIGHT...NW to N winds 10 to 15 kt. Seas 5 to 7 ft in SE to S swell. Period 13 seconds. .THU...NW winds 10 to 15 kt. Seas 6 to 8 ft in E to SE swell. Period 13 seconds. .THU NIGHT...NW to N winds 10 to 15 kt. Seas 7 to 10 ft in E swell. Period 13 seconds. $$ PMZ017-202145- Northern Gulf of California- 240 AM PDT Sun Sep 20 2026 .TODAY...SE to S winds 10 to 15 kt. Seas 3 ft or less. Period 9 seconds. .TONIGHT...S to SW winds 10 to 15 kt. Seas 3 ft or less. Period 5 seconds. .MON...S winds 10 to 15 kt. Seas 2 to 4 ft. Period 5 seconds. .MON NIGHT...SW winds 10 to 15 kt. Seas 3 ft or less. Period 7 seconds. .TUE...NW winds 10 kt. Seas 3 ft or less. Period 5 seconds. .TUE NIGHT...SW winds 10 kt N of 30N, and variable less than 5 kt Elsewhere. Seas 3 ft or less. Period 4 seconds. .WED...Variable winds less than 5 kt N of 30N, and NW 10 kt Elsewhere. Seas 3 ft or less. Period 5 seconds. .WED NIGHT...Variable winds less than 5 kt N of 30N, and W to NW 10 kt Elsewhere. Seas 3 ft or less. Period 5 seconds. .THU...Variable winds less than 5 kt N of 30N, and NW 10 kt Elsewhere. Seas 3 ft or less. Period 5 seconds. .THU NIGHT...Variable winds less than 5 kt. Seas 3 ft or less. Period 11 seconds. $$ PMZ019-202145- Central Gulf of California- 240 AM PDT Sun Sep 20 2026 .TODAY...SE to S winds 10 to 15 kt. Seas 3 ft or less. Period 9 seconds. .TONIGHT...S winds 10 kt. Seas 3 ft or less. Period 9 seconds. .MON...SE winds 10 kt, shifting to W in the afternoon. Seas 3 ft or less. Period 9 seconds. .MON NIGHT...Variable winds less than 5 kt, becoming W to NW 10 kt late. Seas 3 ft or less. Period 9 seconds. .TUE...NW winds 10 kt. Seas 3 ft or less. Period 10 seconds. .TUE NIGHT...NW winds 10 kt. Seas 3 ft or less. Period 10 seconds. .WED...NW winds 10 kt. Seas 3 ft or less. Period 8 seconds. .WED NIGHT...NW winds 10 kt. Seas 3 ft or less. Period 8 seconds. .THU...NW to N winds 10 to 15 kt. Seas 3 ft or less. Period 11 seconds. .THU NIGHT...Variable winds less than 5 kt. Seas 3 ft or less. Period 12 seconds. $$ PMZ021-202145- Southern Gulf of California- 240 AM PDT Sun Sep 20 2026 .TODAY...S winds 10 kt. Seas 3 ft or less. Period 16 seconds. .TONIGHT...SW winds 10 to 15 kt. Seas 3 ft or less. Period 17 seconds. .MON...W to NW winds 10 kt. Seas 3 ft or less. Period 17 seconds. .MON NIGHT...Variable winds less than 5 kt, becoming W 10 kt late. Seas 2 to 4 ft. Period 17 seconds. .TUE...NW winds 10 kt. Seas 2 to 4 ft. Period 13 seconds. .TUE NIGHT...Variable winds less than 5 kt. Seas 3 ft or less. Period 13 seconds. .WED...NW to N winds 10 kt. Seas 3 ft or less. Period 12 seconds. .WED NIGHT...NW winds 10 kt. Seas 2 to 4 ft. Period 12 seconds. .THU...NW winds 10 kt. Seas 3 to 5 ft. Period 12 seconds. .THU NIGHT...W winds 10 kt. Seas 4 to 6 ft in SE swell. Period 12 seconds. $$ PMZ022-202145- N of 20N E of 110W to the Entrance of the Gulf of California- 240 AM PDT Sun Sep 20 2026 .TODAY...Variable winds less than 5 kt, becoming W to NW 10 kt in the afternoon. Seas 3 to 5 ft in S to SW swell. Period 17 seconds. Scattered showers and isolated tstms through the day. .TONIGHT...Variable winds less than 5 kt, becoming W to NW 10 kt late. Seas 3 to 5 ft in S to SW swell. Period 17 seconds. Scattered showers and isolated tstms through the night. .MON...NW to N winds 10 kt. Seas 4 to 6 ft in S swell. Period 17 seconds. .MON NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. Period 17 seconds. Scattered showers and isolated tstms through the night. .TUE...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. Period 15 seconds. .TUE NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. Period 15 seconds. .WED...NW to N winds 10 kt. Seas 6 to 8 ft in S to SW swell. Period 14 seconds. .WED NIGHT...NW to N winds 10 kt. Seas 9 to 13 ft in SE to S swell. Period 13 seconds. .THU...N winds 10 kt. Seas 8 to 12 ft in SE to S swell. Period 13 seconds. .THU NIGHT...N winds 15 to 20 kt. Seas 10 to 16 ft in SE to S swell. Period 13 seconds. $$ PMZ024-202145- Colima and Jalisco within 300 nm offshore S of 20N and E of 110W- 240 AM PDT Sun Sep 20 2026 .TODAY...N to NE winds 10 kt. Seas 6 to 8 ft in S to SW swell. Period 18 seconds. .TONIGHT...N winds 10 kt. Seas 7 to 10 ft in S swell. Period 17 seconds. Scattered showers and isolated tstms through the night. .MON...NW to N winds 10 to 15 kt. Seas 6 to 8 ft in S swell. Period 17 seconds. Scattered showers and isolated tstms through the day. .MON NIGHT...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. Period 16 seconds. Scattered showers and isolated tstms through the night. .TUE...NW to N winds 10 to 15 kt. Seas 5 to 7 ft in S to SW swell. Period 15 seconds. .TUE NIGHT...NW to N winds 10 to 15 kt. Seas 7 to 10 ft in S swell. Period 14 seconds. .WED...NW to N winds 15 to 20 kt. Seas 11 to 17 ft in SE swell. Period 12 seconds. .WED NIGHT...NW to N winds 15 to 20 kt. Seas 12 to 18 ft in E to SE swell. Period 12 seconds. .THU...NW to N winds 35 to 45 kt. Seas 12 to 18 ft in E to SE swell. Period 12 seconds. .THU NIGHT...NW winds 40 to 50 kt. Seas 12 to 18 ft. Period 12 seconds. $$ PMZ025-202145- Michoacan and Guerrero within 250 nm offshore- 240 AM PDT Sun Sep 20 2026 ...STORM WARNING... .TODAY...SW to W winds 10 to 15 kt Within 60 nm of shore, and SE 20 to 30 kt Elsewhere. Seas 9 to 13 ft in S to SW swell. Period 18 seconds. Scattered showers and isolated tstms through the day. .TONIGHT...SW to W winds 10 to 15 kt Within 60 nm of shore, and S to SW 25 to 30 kt Elsewhere. Seas 9 to 14 ft in S to SW swell. Period 17 seconds. Scattered showers and isolated tstms through the night. .MON...Within 60 nm of shore, NE to E winds 10 to 15 kt, shifting to SE to S in the afternoon. Elsewhere, W winds 25 to 30 kt. Seas 10 to 15 ft in SW swell. Period 17 seconds. Scattered showers and isolated tstms through the day. .MON NIGHT...E to SE winds 15 to 20 kt Within 60 nm of shore, and NW 25 to 30 kt Elsewhere. Seas 12 to 18 ft in SW swell. Period 17 seconds. Scattered showers and isolated tstms. .TUE...NE to E winds 25 to 30 kt. Seas 12 to 18 ft in S to SW swell. Period 13 seconds. .TUE NIGHT...SE winds 25 to 35 kt. Seas 12 to 18 ft in SE to S swell. Period 12 seconds. .WED...S winds 30 to 40 kt. Seas 12 to 18 ft in SE to S swell. Period 11 seconds. .WED NIGHT...SE winds 40 to 50 kt Within 60 nm of shore, and SW 30 to 40 kt Elsewhere. Seas 12 to 18 ft in W swell. Period 11 seconds. .THU...SE to S winds 35 to 45 kt Within 60 nm of shore, and SW 25 to 30 kt Elsewhere. Seas 12 to 18 ft in W to NW swell. Period 11 seconds. .THU NIGHT...SW winds 20 to 25 kt. Seas 12 to 18 ft in W to NW swell. Period 11 seconds. $$ PMZ026-202145- Oaxaca W of Puerto Angel within 250 nm offshore- 240 AM PDT Sun Sep 20 2026 .TODAY...N of 14N, W winds 10 to 15 kt. S of 14N, variable winds less than 5 kt, becoming SW 10 to 15 kt in the afternoon. Seas 4 to 6 ft in S to SW swell. Period 18 seconds. .TONIGHT...W winds 10 to 15 kt. Seas 5 to 7 ft. Period 18 seconds. Scattered showers and isolated tstms through the night. .MON...SW to W winds 10 to 15 kt. Seas 6 to 8 ft in SW swell. Period 17 seconds. Scattered showers and isolated tstms through the day. .MON NIGHT...SW winds 15 to 20 kt. Seas 7 to 10 ft in SW to W swell. Period 17 seconds. Scattered showers and isolated tstms through the night. .TUE...S winds 25 to 30 kt. Seas 11 to 17 ft in W swell. Period 13 seconds. .TUE NIGHT...S winds 25 to 30 kt. Seas 11 to 17 ft in W swell. Period 12 seconds. .WED...S to SW winds 20 to 25 kt. Seas 10 to 16 ft in W swell. Period 10 seconds. .WED NIGHT...SW winds 10 to 15 kt. Seas 8 to 12 ft in W to NW swell. Period 10 seconds. .THU...SW to W winds 10 to 15 kt. Seas 7 to 10 ft in W to NW swell. Period 10 seconds. .THU NIGHT...W winds 10 kt. Seas 6 to 8 ft in W to NW swell. Period 11 seconds. $$ PMZ028-202145- Oaxaca E of Puerto Angel within 300 nm offshore including the Gulf of Tehuantepec- 240 AM PDT Sun Sep 20 2026 .TODAY...N winds 10 kt, shifting to W in the afternoon. Seas 3 to 5 ft. Period 18 seconds. .TONIGHT...W to NW winds 10 to 15 kt. Seas 4 to 6 ft. Period 18 seconds. Scattered showers and isolated tstms through the night. .MON...W to NW winds 10 to 15 kt. Seas 4 to 6 ft in SW swell. Period 17 seconds. Scattered showers and isolated tstms through the day. .MON NIGHT...W to NW winds 10 to 15 kt N of 14N, and W 15 to 20 kt S of 14N. Seas 5 to 7 ft. Period 17 seconds. Scattered showers and isolated tstms. .TUE...W winds 10 to 15 kt. Seas 6 to 9 ft in SW swell. Period 15 seconds. .TUE NIGHT...W winds 10 to 15 kt. Seas 7 to 10 ft in W swell. Period 13 seconds. .WED...W winds 10 to 15 kt. Seas 7 to 10 ft in W to NW swell. Period 12 seconds. .WED NIGHT...W to NW winds 10 to 15 kt. Seas 7 to 10 ft in W to NW swell. Period 12 seconds. .THU...NW winds 10 to 15 kt. Seas 6 to 8 ft in W to NW swell. Period 12 seconds. .THU NIGHT...NW to N winds 10 kt. Seas 5 to 7 ft in W to NW swell. Period 12 seconds. $$ PMZ029-202145- Offshore Chiapas E of 94W- 240 AM PDT Sun Sep 20 2026 .TODAY...Variable winds less than 5 kt, becoming W 10 kt in the afternoon. Seas 2 to 4 ft. Period 18 seconds. .TONIGHT...NW winds 10 kt. Seas 3 to 5 ft. Period 18 seconds. Scattered showers and isolated tstms. .MON...E of 93W, variable winds less than 5 kt, becoming W 10 kt in the afternoon. W of 93W, SW to W winds 10 to 15 kt. Seas 3 to 5 ft. Period 17 seconds. .MON NIGHT...E of 93W, NW winds 10 kt in the evening, becoming variable winds less than 5 kt. W of 93W, W to NW winds 10 to 15 kt. Seas 4 to 6 ft in SW swell. Period 17 seconds. Scattered showers and isolated tstms. .TUE...SW winds 10 kt. Seas 3 to 5 ft. Period 16 seconds. .TUE NIGHT...Variable winds less than 5 kt E of 93W, and NW to N 10 kt W of 93W. Seas 4 to 6 ft in SW to W swell. Period 15 seconds. .WED...Variable winds less than 5 kt E of 93W, and NW 10 kt W of 93W. Seas 4 to 6 ft in W swell. Period 15 seconds. .WED NIGHT...Variable winds less than 5 kt E of 93W, and NW to N 10 kt W of 93W. Seas 4 to 6 ft in W swell. Period 14 seconds. .THU...Variable winds less than 5 kt. Seas 4 to 6 ft in W swell. Period 13 seconds. .THU NIGHT...E to SE winds 10 kt. Seas 4 to 6 ft in W swell. Period 12 seconds. $$ Forecaster Ramos