Tropical Depression 1-E expected to become Tropical Storm Alvin Thursday off Mexico’s coast in Eastern Pacific
Tropical Depression One-E is expected to remain far enough offshore that impacts along Mexico’s coast will be limited to heightened swells and increased rip currents along beaches.
Tropical Depression 1-E likely to strengthen into Tropical Storm Alvin off Mexico's coast Thursday
Tropical Depression One-E continues to churn in the waters of the Eastern Pacific off Mexico's coast and is expected to strengthen into Tropical Storm Alvin on Thursday. FOX Weather Meteorologists Michael Estime and Craig Herrera break down the latest forecast on May 29, 2025.
Tropical Depression One-E strengthened into Tropical Storm Alvin on Thursday morning. Follow continuing coverage by clicking here.
The first tropical depression of the season, which formed in the Eastern Pacific, is expected to strengthen into Tropical Storm Alvin on Thursday during what could be a complex year for forecasters around the basin.
Tropical Depression One-E is expected to remain far enough offshore that impacts along Mexico’s coast will be limited to heightened swells and increased rip currents along beaches.
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If Tropical Depression One-E continues to strengthen, as currently forecast, it will be named Tropical Storm Alvin and become the first tropical storm of the season – not only in the Pacific but across all basins that make up the Northern Hemisphere.
PATTERN EMERGES IN TROPICS FOR FIRST TIME IN MORE THAN 20 YEARS
The amount of inactivity is a bit unusual, with forecasters usually tracking the first significant tropical cyclone in the Western Pacific by April, with the first system in the Eastern Pacific by early June.
(FOX Weather)
The composition of water temperatures in the Eastern Pacific makes the evolution of Tropical Depression One-E somewhat complex and will impact future tropical cyclones.
There are large pockets of both warmer and cooler water temperatures, meaning that a tropical cyclone's strength will be determined by its forecast track.
Systems that move over water with temperatures above 78 degrees Fahrenheit are considered to be in an environment warm enough to support the development of tropical cyclones and their continued strengthening. In contrast, cooler water temperatures make it more difficult for tropical cyclones to develop and intensify.
(FOX Weather)
Mexico’s National Weather Service forecasts that there will be enough warm water this season to support more tropical cyclones than in a typical year, projecting as many as 18 named storms and 10 hurricanes.
Tropical Depression One-E is expected to reach cooler waters by Friday and quickly fall apart south of Mexico's Baja California Peninsula.
Once the center of circulation dissolves, forecasters will watch where the system's remnants venture for increased precipitation chances over mainland Mexico and potentially into the southern U.S.
The Eastern Pacific hurricane season runs from May 15 to Nov. 30.