The Tropical Depression 1-E was upgraded to tropical storm level Wednesday on the opening day of the Pacific hurricane season, CNN reported. Atlantic hurricane season begins June 1.
Alvin was centered approximately 700 miles south of Manzanillo, Mexico, as of 2 a.m. PDT, the National Hurricane Center in Miami reported, moving west-northwest at nearly 10 mph.
It had maximum sustained winds of 50 mph, gusting higher and could develop into a hurricane within a day or two. No coastal warnings were issued.