The storm, with sustained winds of 40 miles (64 kilometers) per hour, was 665 miles south-southwest of Acapulco, Mexico, and moving west-northwest at 13 mph, according to an advisory issued at about 2 p.m. West Coast time. The storm will probably drift further into the Pacific, according to the center’s track projection.
“Additional strengthening is forecast during the next 48 hours and Alvin could become a hurricane in a couple of days,” the Miami-based center said.
Today marked the start of the eastern Pacific season, which usually produces 15 tropical storms. Eight of those systems normally become hurricanes, four of them major storms with winds of 111 mph or more, according to the center.
The six-month Atlantic hurricane season begins June 1.
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