Tropical Weather Discussion

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Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Tue Jun 2 2026 Tropical Weather Discussion for the eastern Pacific Ocean from 03.4S to 30N, east of 120W including the Gulf of California, and from the Equator to 30N, between 120W and 140W. The following information is based on satellite imagery, weather observations, radar, and meteorological analysis. Based on 1800 UTC surface analysis and satellite imagery through 2100 UTC. ...SPECIAL FEATURES... Tropical Depression One-E: The first tropical depression of the 2026 Eastern Pacific hurricane season has formed in the western portion of the basin this afternoon. Newly-formed Tropical Depression One-E is centered near 9.4N 126.7W at 02/2100 UTC, moving west at 3 kt. Estimated minimum central pressure is 1008 mb. Maximum sustained wind speed is 25 kt with gusts to 35 kt. Peak seas are near 10 ft. Numerous strong convection is noted from 08N to 11N between 125W and 131W. One-E is forecast to move to 9.9N 127.1W Wed morning, then strengthen to a tropical storm near 10.6N 128.2W Wed afternoon. One-E is forecast to reach 11.5N 129.4W Thu morning, 12.6N 130.8W Thu afternoon, 13.3N 132.2W Fri morning, and 13.7N 133.3W Fri afternoon. One-E will change little in intensity as it moves westward across the far western portions of the basin Sat afternoon. Please read the latest High Seas Forecast issued by the National Hurricane Center at website - https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml and the latest Tropical Depression One-E NHC Forecast/Advisory and Public Advisory at www.hurricanes.gov for more details. ...TROPICAL WAVES... A tropical wave has now fully emerged into the eastern Pacific and now has an axis along 86W southward to 03N, moving westward at around 5 kt. Scattered moderate to isolated strong convection is noted N of 04N between 81W and 91W. A tropical wave has its axis along 111W, from 04N to 16N, moving westward at around 5 kt. Scattered moderate convection is noted from 07N to 13N between 103W and 113W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough axis extends from 10N82W to newly formed Tropical Depression One-E at 09N127W to 05N140W. Scattered moderate convection is noted within 180 nm N of the trough between 131W and 138W and from 03N to 09N between 116W and 122W. Scattered moderate convection has also developed from 07N to 14N between 91W and 101W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A broad surface ridge that is anchored by a 1026 mb high center N of the area near 33N135W stretches southeastward to the Revillagigedo Islands. The pressure gradient between this ridge and a surface trough along the Gulf of California is maintaining mainly moderate NW winds over the Baja California offshore waters, with seas of 5 to 7 ft. Inside the Gulf of California, light to gentle winds prevail, with seas of 1 to 3 ft, except for 3 to 5 ft in S to SW swell near the entrance to the Gulf. For the remainder of the offshore waters, light to gentle winds dominate along with 5 to 7 ft seas primarily in long-period S to SW swell, including the Gulf of Tehuantepec. For the forecast, NW swell will move through the waters offshore Baja California Norte Wed night through early on Sat, decaying afterward. An area of low pressure is forecast to form offshore Central America and southern Mexico late this week or this weekend. Environmental conditions appear conducive for some development of this system thereafter, and a tropical depression could form early next week while it moves slowly north- northwestward. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Mainly light and variable winds are over the Central American offshore waters under a weak pressure pattern along with moderate seas of 5 to 7 ft in long-period S to SW swell. The exception is fresh gap winds in the Papagayo region. Gentle south winds along with seas of 5 to 7 ft in long- period SW swell are over the waters S of the monsoon trough between the Galapagos Islands and Ecuador. For the forecast, pulses of moderate to fresh gap winds will occur the the Papagayo region tonight and Wed night. Long period SW swell is forecast to enter the southern Galapagos adjacent waters tonight, then begin to subside Thu afternoon. Looking ahead, an area of low pressure is forecast to form offshore Central America and southern Mexico late this week or this weekend. Environmental conditions appear conducive for some development of this system thereafter, and a tropical depression could form early next week while it moves slowly north- northwestward. ...REMAINDER OF THE AREA... Please see the Special Features section for information newly developed Tropical Depression One-E, that is forecast to become a tropical storm this week over the far western portions of the basin. Otherwise, high pressure dominates waters N of the monsoon trough, with the pressure gradient between the high pressure and lower pressure within the monsoon trough generally allowing for moderate to locally fresh trade winds N of the monsoon trough to 25N. Seas over these waters are in the 7 to 9 ft range in a mix of trade wind waves and NW to N swell. Mainly gentle winds are S of the monsoon trough. Seas over these waters are generally 5 to 7 ft, except for S of the Equator, where long- period southerly swell is causing rough seas W of 100W. The aforementioned high pressure will weaken some toward the end of the week as Tropical Depression One-E tracks NW over the western portion of the area, resulting a a lessening of the trade winds E of 130W. These winds will become light from 04N to 12N between 120W to 130W, with seas subsiding to moderate. Little change is expected elsewhere.