Synopsis for the E Pacific within 250 nm of Mexico PMZ001 View original source

900 PM PDT Tue Aug 25 2026

Tropical Storm Iselle is near 21.3N 122.5W at 8 PM PDT, and is moving west-northwest at 8 kt. Maximum sustained winds are 45 kt with gusts to 55 kt, and the minimum central pressure is 996 mb. Iselle will move to 21.6N 123.7W Wed morning, 22.3N 125.5W Wed evening, weaken to a remnant low near 22.9N 127.4W Thu morning, 23.4N 129.4W Thu evening, 23.8N 131.4W Fri morning, and dissipate Fri evening. Large S-SW swell from Iselle will continue to move through the Baja waters through early Wed before quickly subsiding. Elsewhere, fresh northerly gap winds will continue to pulse to strong speeds across Tehuantepec region during the overnight and early morning hours through the upcoming weekend, with seas occasionally building to 8 ft. Looking ahead, Invest EP93 has the potential to develop into a tropical depression in the next two or three days while it moves generally WNW at 10 to 15 kt, well offshore of Mexico. This system will likely follow a similar trajectory as Iselle, Thu through the weekend, and impact the outer offshore waters near the Revillagigedo Islands within increasing winds and seas.

Mexico Border S to 30N within 60 nm of shore PMZ009 View original source
900 PM PDT Tue Aug 25 2026
Day Dir Speed Waves period
TONIGHT NW 10 kt. 5 to 7 ft in S swell. 13 seconds.
WED W to NW 10 kt. 5 to 7 ft in S swell. 13 seconds.
WED NIGHT N of 31N, W to NW 10 kt in the evening, becoming variable winds less than 5 kt. S of 31N, W to NW winds 10 kt. 4 to 6 ft in S swell. 12 seconds.
THU Variable less than 5 kt, becoming W 10 kt in the afternoon. 4 to 6 ft in S swell. 12 seconds.
THU NIGHT Variable less than 5 kt N of 31N, and NW 10 kt S of 31N. 3 to 5 ft. 10 seconds.
FRI Variable less than 5 kt. 3 to 5 ft in S to SW swell. 14 seconds.
FRI NIGHT NW 10 kt. 3 to 5 ft. 17 seconds.
SAT NW 10 to 15 kt. 4 to 6 ft. 16 seconds.
SAT NIGHT NW 10 to 15 kt. 4 to 6 ft. 15 seconds.
SUN NW 10 to 15 kt. 5 to 7 ft in W swell. 14 seconds.
SUN NIGHT NW 10 to 15 kt. 5 to 7 ft in W to NW swell. 14 seconds.
30N to Punta Eugenia within 250 nm of shore PMZ011 View original source
900 PM PDT Tue Aug 25 2026
Day Dir Speed Waves period
TONIGHT NW 10 kt. 7 to 10 ft in S swell. 13 seconds.
WED NW 10 kt. 6 to 9 ft in S swell. 12 seconds.
WED NIGHT NW 10 kt. 5 to 7 ft in S swell. 12 seconds.
THU W to NW 10 kt. 5 to 7 ft in S swell. 11 seconds.
THU NIGHT NW 10 kt. 4 to 6 ft in S to SW swell. 11 seconds.
FRI NW 10 kt. 5 to 7 ft in S to SW swell. 14 seconds.
FRI NIGHT NW to N 10 to 15 kt. 5 to 7 ft in S to SW swell. 16 seconds.
SAT NW to N 10 to 15 kt. 5 to 7 ft in S to SW swell. 16 seconds.
SAT NIGHT NW to N 10 to 15 kt. 5 to 7 ft in S to SW swell. 15 seconds.
SUN NW to N 10 to 15 kt. 6 to 8 ft in SW to W swell. 13 seconds.
SUN NIGHT NW to N 10 to 15 kt. 6 to 8 ft in SW swell. 12 seconds.
Punta Eugenia to Cabo San Lazaro within 250 nm offshore PMZ013 View original source
900 PM PDT Tue Aug 25 2026
Day Dir Speed Waves period
TONIGHT N 10 to 15 kt. 7 to 10 ft in S to SW swell. 12 seconds.
WED NW to N 10 kt. 6 to 9 ft in S to SW swell. 12 seconds.
WED NIGHT NW 10 to 15 kt. 5 to 7 ft in S to SW swell. 12 seconds.
THU NW 10 kt. 4 to 6 ft in S to SW swell. 11 seconds.
THU NIGHT NW 10 to 15 kt. 3 to 5 ft. 14 seconds.
FRI NW to N 10 kt. 3 to 5 ft. 17 seconds.
FRI NIGHT NW to N 10 kt. 4 to 6 ft in S to SW swell. 16 seconds.
SAT Variable less than 5 kt. 6 to 8 ft in S to SW swell. 15 seconds.
SAT NIGHT NW to N 10 kt. 6 to 9 ft in S to SW swell. 14 seconds.
SUN N to NE 10 kt. 6 to 9 ft in S swell. 12 seconds.
SUN NIGHT N 10 kt. 6 to 8 ft in S swell. 12 seconds.
Cabo San Lazaro to Cabo San Lucas within 350 nm offshore N of 20N PMZ014 View original source
900 PM PDT Tue Aug 25 2026
Day Dir Speed Waves period
TONIGHT N to NE 10 kt. 6 to 8 ft in SW swell. 11 seconds.
WED N 10 kt. 6 to 8 ft in SW swell. 11 seconds. Scattered showers and isolated tstms through the day.
WED NIGHT N 10 kt. 4 to 6 ft in SW swell. 11 seconds.
THU N 10 kt. 4 to 6 ft in S to SW swell. 17 seconds.
THU NIGHT NW to N 10 kt. 3 to 5 ft. 17 seconds.
FRI N to NE 10 kt. 4 to 6 ft in S to SW swell. 17 seconds.
FRI NIGHT E 10 kt. 6 to 8 ft in S to SW swell. 16 seconds.
SAT Variable less than 5 kt N of 22N, and E to SE 10 to 15 kt S of 22N. 7 to 10 ft in S to SW swell. 15 seconds.
SAT NIGHT SE to S 10 to 15 kt. 7 to 11 ft in S swell. 12 seconds.
SUN SE 10 to 15 kt. 7 to 10 ft in S to SW swell. 12 seconds.
SUN NIGHT S 10 kt. 6 to 8 ft in S to SW swell. 12 seconds.
From 17N to 20N Between 110W and 115W including the Revillagigedo Islands PMZ016 View original source
900 PM PDT Tue Aug 25 2026
Day Dir Speed Waves period
TONIGHT E 10 kt. 6 to 8 ft in SW to W swell. 10 seconds. Scattered showers and isolated tstms through the night.
WED NE to E 10 kt. 5 to 7 ft in S to SW swell. 11 seconds. Scattered showers and isolated tstms through the day.
WED NIGHT NE to E 10 kt. 4 to 6 ft in S to SW swell. 16 seconds. Scattered showers and isolated tstms through the night.
THU NE to E 10 to 15 kt. 4 to 6 ft. 18 seconds.
THU NIGHT E 15 to 20 kt. 6 to 9 ft in S to SW swell. 17 seconds.
FRI E to SE 15 to 20 kt E of 113W, and NE to E 25 to 30 kt W of 113W. 10 to 15 ft in S to SW swell. 16 seconds.
FRI NIGHT SE 15 to 20 kt E of 113W, and E to SE 25 to 30 kt W of 113W. 12 to 18 ft in S swell. 13 seconds.
SAT SE 15 to 20 kt E of 113W, and E to SE 25 to 30 kt W of 113W. 12 to 18 ft in S swell. 12 seconds.
SAT NIGHT SE to S 10 to 15 kt E of 113W, and SE 20 to 25 kt W of 113W. 9 to 13 ft in S swell. 12 seconds.
SUN E to SE 10 kt E of 113W, and SE 15 to 20 kt W of 113W. 7 to 10 ft in S to SW swell. 12 seconds.
SUN NIGHT SE 10 to 15 kt. 6 to 8 ft in S to SW swell. 11 seconds.
Northern Gulf of California PMZ017 View original source
900 PM PDT Tue Aug 25 2026
Day Dir Speed Waves period
TONIGHT N of 30N, variable less than 5 kt, becoming SW to W 10 kt late. Elsewhere, S to SW winds 10 kt. 3 ft or less. 11 seconds.
WED SE to S 10 kt. 3 ft or less. 10 seconds.
WED NIGHT S 10 kt. 3 ft or less. 10 seconds.
THU SE to S 10 to 15 kt. 3 ft or less. 10 seconds.
THU NIGHT SE to S 10 kt. 3 ft or less. 3 seconds.
FRI SE to S 10 to 15 kt. 3 ft or less. 3 seconds.
FRI NIGHT SE to S 10 kt. 3 ft or less. 4 seconds.
SAT SE to S 10 to 15 kt. 3 ft or less. 4 seconds.
SAT NIGHT SE to S 10 kt. 3 ft or less. 4 seconds.
SUN SE to S 15 to 20 kt. 2 to 4 ft. 4 seconds.
SUN NIGHT S 10 to 15 kt. 2 to 4 ft. 4 seconds.
Central Gulf of California PMZ019 View original source
900 PM PDT Tue Aug 25 2026
Day Dir Speed Waves period
TONIGHT S 10 kt. 3 ft or less. 11 seconds.
WED SE to S 10 kt. 3 ft or less. 10 seconds.
WED NIGHT S 10 kt. 3 ft or less. 10 seconds.
THU SE to S 10 to 15 kt. 3 ft or less. 10 seconds.
THU NIGHT SE to S 10 to 15 kt. 3 ft or less. 10 seconds.
FRI SE to S 10 kt. 3 ft or less. 10 seconds.
FRI NIGHT SE to S 10 kt. 3 ft or less. 6 seconds.
SAT SE to S 10 kt. 3 ft or less. 6 seconds.
SAT NIGHT S 10 kt. 3 ft or less. 7 seconds.
SUN SE to S 10 to 15 kt. 3 ft or less. 6 seconds.
SUN NIGHT S 10 to 15 kt. 3 ft or less. 6 seconds.
Southern Gulf of California PMZ021 View original source
900 PM PDT Tue Aug 25 2026
Day Dir Speed Waves period
TONIGHT S to SW 10 to 15 kt. 3 to 5 ft. 11 seconds. Scattered showers and isolated tstms through the night.
WED SE to S 10 kt. 2 to 4 ft. 12 seconds.
WED NIGHT S to SW 10 kt. 2 to 4 ft. 13 seconds.
THU S to SW 10 kt. 3 ft or less. 15 seconds.
THU NIGHT SE to S 10 to 15 kt. 3 ft or less. 13 seconds.
FRI SE to S 10 kt. 2 to 4 ft. 14 seconds.
FRI NIGHT S 10 kt. 2 to 4 ft. 13 seconds.
SAT S 10 kt. 3 to 5 ft. 13 seconds.
SAT NIGHT S 10 kt. 3 to 5 ft. 12 seconds.
SUN S 10 kt. 3 to 5 ft. 12 seconds.
SUN NIGHT S 10 kt. 3 to 5 ft. 12 seconds.
N of 20N E of 110W to the Entrance of the Gulf of California PMZ022 View original source
900 PM PDT Tue Aug 25 2026
Day Dir Speed Waves period
TONIGHT Variable less than 5 kt, becoming NW to N 10 kt late. 4 to 6 ft in SW to W swell. 16 seconds. Scattered showers and isolated tstms through the night.
WED N to NE 10 kt, shifting to NW in the afternoon. 3 to 5 ft. 15 seconds.
WED NIGHT NW 10 kt. 3 to 5 ft. 15 seconds. Isolated tstms through the night.
THU Variable less than 5 kt. 3 to 5 ft in SW swell. 17 seconds.
THU NIGHT SW to W 10 kt. 3 to 5 ft. 17 seconds.
FRI S to SW 10 kt. 4 to 6 ft in S to SW swell. 17 seconds.
FRI NIGHT W 10 kt. 5 to 7 ft in S to SW swell. 16 seconds.
SAT S to SW 10 kt. 5 to 7 ft in S to SW swell. 15 seconds.
SAT NIGHT SW to W 10 kt. 5 to 7 ft in S to SW swell. 14 seconds.
SUN S 10 kt. 4 to 6 ft in S to SW swell. 14 seconds.
SUN NIGHT SW to W 10 kt. 4 to 6 ft in S to SW swell. 14 seconds.
Colima and Jalisco within 300 nm offshore S of 20N and E of 110W PMZ024 View original source
900 PM PDT Tue Aug 25 2026
Day Dir Speed Waves period
TONIGHT N to NE 10 kt. 4 to 6 ft in SW to W swell. 16 seconds. Scattered showers and isolated tstms through the night.
WED N to NE 10 kt. 3 to 5 ft. 15 seconds.
WED NIGHT N to NE 10 kt. 4 to 6 ft in S to SW swell. 15 seconds.
THU E 10 kt, shifting to SE to S in the afternoon. 4 to 6 ft in S to SW swell. 17 seconds.
THU NIGHT S 10 to 15 kt. 5 to 7 ft in S to SW swell. 17 seconds.
FRI SE 10 kt. 6 to 8 ft in S to SW swell. 17 seconds.
FRI NIGHT S 10 kt. 6 to 8 ft in S to SW swell. 16 seconds.
SAT E 10 kt. 6 to 8 ft in S to SW swell. 15 seconds.
SAT NIGHT Variable less than 5 kt. 5 to 7 ft in S to SW swell. 14 seconds.
SUN E 10 kt. 4 to 6 ft in S to SW swell. 14 seconds.
SUN NIGHT Variable less than 5 kt. 4 to 6 ft in S to SW swell. 13 seconds.
Michoacan and Guerrero within 250 nm offshore PMZ025 View original source
900 PM PDT Tue Aug 25 2026
Day Dir Speed Waves period
TONIGHT Within 60 nm of shore, W 10 kt early in the evening, becoming variable winds less than 5 kt. Elsewhere, NE to E winds 10 to 15 kt. 3 to 5 ft. 16 seconds. Scattered showers and isolated tstms through the night.
WED Within 60 nm of shore, variable less than 5 kt, becoming SW to W 10 kt in the afternoon. Elsewhere, E winds 10 kt, shifting to SE to S in the afternoon. 4 to 6 ft in S to SW swell. 15 seconds. Scattered showers and isolated tstms through the day.
WED NIGHT S to SW 10 kt. 4 to 6 ft in SW swell. 16 seconds. Scattered showers and isolated tstms through the night.
THU E to SE 10 kt, shifting to S to SW in the afternoon. 4 to 6 ft in S to SW swell. 17 seconds. Scattered showers and isolated tstms through the day.
THU NIGHT SW to W 10 kt. 5 to 7 ft in S to SW swell. 17 seconds.
FRI N 10 kt. 5 to 7 ft in S to SW swell. 17 seconds.
FRI NIGHT NE 10 kt. 5 to 7 ft in S to SW swell. 16 seconds.
SAT Variable less than 5 kt Within 60 nm of shore, and NE to E 10 kt Elsewhere. 5 to 7 ft in S to SW swell. 15 seconds.
SAT NIGHT E to SE 10 kt. 4 to 6 ft in S to SW swell. 14 seconds.
SUN Variable less than 5 kt Within 60 nm of shore, and E to SE 10 kt Elsewhere. 4 to 6 ft in S to SW swell. 14 seconds.
SUN NIGHT SE 10 kt. 4 to 6 ft in S to SW swell. 13 seconds.
Oaxaca W of Puerto Angel within 250 nm offshore PMZ026 View original source
900 PM PDT Tue Aug 25 2026
Day Dir Speed Waves period
TONIGHT N of 14N, variable less than 5 kt, becoming NW to N 10 kt late. S of 14N, E to SE winds 10 to 15 kt. 4 to 6 ft in SE swell. 16 seconds. Scattered showers and isolated tstms through the night.
WED N of 14N, variable less than 5 kt, becoming SW to W 10 kt in the afternoon. S of 14N, E to SE winds 10 to 15 kt. 3 to 5 ft. 15 seconds.
WED NIGHT S to SW 10 kt, shifting to N late. 3 to 5 ft. 16 seconds. Scattered showers and isolated tstms through the night.
THU N 10 kt. 3 to 5 ft. 17 seconds. Scattered showers and isolated tstms through the day.
THU NIGHT Variable less than 5 kt. 4 to 6 ft in S to SW swell. 17 seconds.
FRI NE 10 kt. 4 to 6 ft in S to SW swell. 17 seconds.
FRI NIGHT Variable less than 5 kt N of 14N, and E 10 to 15 kt S of 14N. 5 to 7 ft in S to SW swell. 16 seconds.
SAT E 10 to 15 kt. 5 to 7 ft in S to SW swell. 15 seconds.
SAT NIGHT E to SE 10 to 15 kt. 4 to 6 ft. 14 seconds.
SUN Variable less than 5 kt N of 14N, and E to SE 10 to 15 kt S of 14N. 4 to 6 ft in S to SW swell. 14 seconds.
SUN NIGHT E to SE 10 kt. 4 to 6 ft in S to SW swell. 13 seconds.
Oaxaca E of Puerto Angel within 300 nm offshore including the Gulf of Tehuantepec PMZ028 View original source
900 PM PDT Tue Aug 25 2026
Day Dir Speed Waves period
TONIGHT N 20 to 25 kt N of 14N, and E 10 kt S of 14N. 6 to 8 ft in NE to E swell. 16 seconds. Scattered showers and isolated tstms through the night.
WED N 20 to 25 kt N of 14N, and NE to E 10 to 15 kt S of 14N. 6 to 8 ft in NE to E swell. 15 seconds. Scattered showers and isolated tstms through the day.
WED NIGHT NW to N 15 to 20 kt N of 14N, and NE to E 10 kt S of 14N. 6 to 8 ft in N to NE swell. 16 seconds. Scattered showers and isolated tstms through the night.
THU N of 14N, N 20 to 25 kt, diminishing to 10 to 15 kt in the afternoon. S of 14N, NE to E winds 10 to 15 kt. 6 to 8 ft in SW swell. 17 seconds. Scattered showers and isolated tstms through the day.
THU NIGHT NW to N 15 to 20 kt N of 14N, and NE to E 10 kt S of 14N. 5 to 7 ft in SW swell. 17 seconds.
FRI NE 20 to 25 kt N of 14N, and NE to E 10 to 15 kt S of 14N. 6 to 8 ft in SW swell. 17 seconds.
FRI NIGHT NE to E 10 to 15 kt. 6 to 8 ft in SW swell. 16 seconds.
SAT NE to E 10 to 15 kt. 6 to 8 ft in S to SW swell. 15 seconds.
SAT NIGHT E 10 to 15 kt. 6 to 8 ft in S to SW swell. 14 seconds.
SUN NE 15 to 20 kt N of 14N, and E 10 kt S of 14N. 5 to 7 ft in S to SW swell. 14 seconds.
SUN NIGHT E to SE 10 kt. 4 to 6 ft in S to SW swell. 13 seconds.
Offshore Chiapas E of 94W PMZ029 View original source
900 PM PDT Tue Aug 25 2026
Day Dir Speed Waves period
TONIGHT Variable less than 5 kt. 3 to 5 ft in S swell. 16 seconds. Scattered showers and isolated tstms through the night.
WED Variable less than 5 kt, becoming SW to W 10 kt in the afternoon. 3 to 5 ft in S swell. 15 seconds.
WED NIGHT Variable less than 5 kt. 3 to 5 ft in SW swell. 15 seconds. Scattered showers and isolated tstms through the night.
THU Variable less than 5 kt, becoming SW to W 10 kt in the afternoon. 3 to 5 ft in SW swell. 17 seconds.
THU NIGHT Variable less than 5 kt. 3 to 5 ft in SW swell. 17 seconds.
FRI Variable less than 5 kt. 4 to 6 ft in SW swell. 17 seconds.
FRI NIGHT Variable less than 5 kt. 4 to 6 ft in SW swell. 17 seconds.
SAT Variable less than 5 kt. 4 to 6 ft in SW swell. 16 seconds.
SAT NIGHT Variable less than 5 kt. 4 to 6 ft in SW swell. 15 seconds.
SUN Variable less than 5 kt. 4 to 6 ft in SW swell. 14 seconds.
SUN NIGHT Variable less than 5 kt. 3 to 5 ft in SW swell. 14 seconds.
SOUTHERN CROSSING (along 23N) View original source
August 25, 2026, 8:01 pm (UTC: -05:00)
Day Dir Speed Waves period
TODAY WSW 6-8 SW 0-4.9 ft 16sec
TONITE SW 6-8 SW 0-4.4 ft 16sec
WEDNESDAY SW 6-8 SW 0-4.4 ft 16sec
WEDNESDAY NIGHT SW 6-7 SSW 0-3.9 ft 19sec
THURSDAY WSW 6-8 SSW 0-4 ft 18sec
FRIDAY SW 9-11 SSW 1.8-5.1 ft 18sec
SATURDAY WSW 8-10 SSW 1.9-5.1 ft 17sec
SUNDAY WSW 8-10 SSW 1.1-6.4 ft 15sec
MONDAY ESE 5-6 SSW 0-4.4 ft 13sec
MAZATLAN TO BAHIA BANDERAS View original source
August 25, 2026, 8:01 pm (UTC: -05:00)
Day Dir Speed Waves period
TODAY NW 5-6 SW 0-3.4 ft 16sec
TONITE SE 4-5 SW 0-3.1 ft 16sec
WEDNESDAY WNW 7-9 SW 0-3 ft 15sec
WEDNESDAY NIGHT N 6-7 SSW 0-3 ft 19sec
THURSDAY WNW 10-12 SSW 1.5-3.5 ft 18sec
FRIDAY W 9-11 SSW 0-4.1 ft 18sec
SATURDAY WNW 9-11 SSW 0-5.3 ft 15sec
SUNDAY W 8-10 SSW 1.1-3.5 ft 14sec
MONDAY S 6-8 SSW 0-3 ft 13sec
CABO CORRIENTES TO MANZANILLO View original source
August 25, 2026, 8:01 pm (UTC: -05:00)
Day Dir Speed Waves period
TODAY NNE 7-9 SW 0-4.1 ft 16sec
TONITE ESE 7-9 SW 0-4 ft 16sec
WEDNESDAY NNE 8-10 SW 0-3.8 ft 15sec
WEDNESDAY NIGHT NNW 8-10 SSW 0-3.7 ft 19sec
THURSDAY NNE 10-13 SSW 0-3.9 ft 18sec
FRIDAY WNW 7-9 SSW 0-5.2 ft 17sec
SATURDAY NNW 8-10 SSW 0-5.6 ft 16sec
SUNDAY NW 10-12 SSW 0-6.5 ft 15sec
MONDAY S 8-10 SSW 0-3.9 ft 13sec
MEXICAN RIVIERA MANZANILLO TO BAHIAS DE HUATULCO View original source
August 25, 2026, 8:01 pm (UTC: -05:00)
Day Dir Speed Waves period
TODAY WNW 8-10 SW 0-4.2 ft 16sec
TONITE ENE 6-7 SW 0-3.7 ft 15sec
WEDNESDAY ENE 6-7 SW 0-3.7 ft 15sec
WEDNESDAY NIGHT NW 3-4 SW 0-3.9 ft 19sec
THURSDAY W 9-11 SSW 0-4.6 ft 17sec
FRIDAY W 10-13 SW 0-6.1 ft 18sec
SATURDAY W 10-12 SSW 0-6.8 ft 15sec
SUNDAY NE 10-13 SSW 0-6.4 ft 15sec
MONDAY SSW 6-7 SSW 0-4.1 ft 13sec