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Hurricane Bud is expected to approach the Mexico coast late Friday evening.
Hurricane Bud quickly strengthened early Thursday after forming off the southwestern coast of Mexico just hours before, the National Hurricane Center in Miami reported.

The Category 1 storm with 90 mph winds was about 350 miles (560 kilometers) southwest of Manzanillo, and was tracking to the north at 7 mph.

Some additional strengthening is expected Thursday, the hurricane center said. "Gradual weakening is expected to begin by Friday."

The forecast map shows the storm approaching the coast late Friday before slipping off to the southwest and away from land.

Bud is the second named tropical storm of the East Pacific hurricane season.

Early Thursday, Bud's outer bands were already over coastal areas of Jalisco, Colima, Michoacan and Guerrero, weather officials in Mexico said.

There was an advisory in place for mariners.

The National Hurricane Center warned that Bud is expected to bring 4 to 6 inches of rain along Mexico's southwestern coast, with possible isolated amounts of 10 inches.

"These rainfall amounts could produce life-threatening flash floods and mudslides."

Swells generated by Bud will begin affecting some coastal areas Thursday, and "are likely to cause life-threatening surf and rip current conditions," the hurricane center said.