Bud Weakens Into Low Pressure Area Off Southwest Mexico

May 26 (Bloomberg) -- Bud, a Category 3 storm yesterday, weakened to a low-pressure storm off Mexico’s southwestern coast near Puerto Vallarta today, and is expected to dissipate within the next two days.

Winds diminished to 30 miles (45 kilometers) per hour, down from 50 mph, the U.S. National Hurricane Center said in an advisory at about 10:30 a.m. New York time yesterday. Bud is expected to keep weakening, the center said.

“We think the issue will not be the wind but the rainfall,” said Dan Kottlowski, lead hurricane forecaster for AccuWeather Inc. in State College, Pennsylvania.

The storm is 15 miles south-southwest of Cabo Corrientes, Mexico, moving north at 3 mph, according to the advisory.

The Miami-based center issued tropical storm warnings today for the U.S. east coast from Florida to South Carolina as storm Beryl approached.

Beryl was 230 miles east of Charleston, South Carolina, and will bring higher than normal tides and rain, according to an 11 a.m. advisory from the center. Its maximum sustained winds were at 45 miles per hour and the storm was moving southwest at 9 miles per hour, the center reported.

Beryl may strengthen into a tropical storm within 24 hours, reaching the coast by late tomorrow.

Mexico Rains

A mixture of dry air and wind shear diminished Bud, which was a Category 3 hurricane yesterday. No casualties or damage were reported from the storm in Mexico.

Heavy rains were falling in Puerto Vallarta, where Mexico’s weather service expected as much as 25 centimeters (10 inches) of rain. The state of Jalisco canceled classes and set up emergency teams ready to ferry food and water to any communities that might be affected by flooding, according to state news agency Notimex.

Puerto Vallarta and its beaches are a popular destination for tourists from the U.S. and Canada.

When a system’s winds reach 39 mph, it’s given a name and officially becomes a tropical storm. A storm becomes a hurricane when its winds reach 74 mph.

To contact the reporters on this story: Brian K. Sullivan in Boston at bsullivan10@bloomberg.net; Alex Emery in Lima at aemery1@bloomberg.net.

To contact the editor responsible for this story: Dan Stets at dstets@bloomberg.net