Tropical Storm Alvin (2025)

Summary

Tropical Storm Alvin was a moderately strong tropical storm that brought heavy rain and strong winds to El Salvador and Mexico. The first named storm of the 2025 Pacific hurricane season, Alvin formed from a broad area of low pressure off the coast of southwestern Mexico. The disturbance began gradually organizing and became a tropical depression on May 28 and began slowly moving northwest. On May 29, the depression strengthened to a tropical storm while slowly turning to the north towards the Baja California peninsula. Later that day, the storm strengthened further and peaked with maximum sustained winds of 60 mph (100 km/h) and a minimum central pressure of 999 mbar (29.50 inHg). However, wind shear, dry air, and cooler sea surface temperatures halted further intensification. On May 30, the system began weakening after moving into a more unfavorable environment. On May 31, the storm degenerated to a remnant low and dissipated the next day, just southeast of the Baja California peninsula.