Just one day after forming off the coast of western Mexico, Tropical Storm Barbara has strengthened into a hurricane, the first of the eastern Pacific season, the National Hurricane Center in Miami said Monday.

Hurricane Barbara was located about 115 miles southwest of Manzanillo, Mexico, according to the center. Its maximum sustained winds were clocked at 75 mph and moving northwest at 10 mph.

Forecast cone for Hurricane Barbara. NOAA/National Hurricane Center

While there are no coastal watches or warnings in effect, the hurricane center said swells generated by Barbara will affect portions of the coast of southwestern Mexico over the next few days.

"These swells are likely to cause life-threatening surf and rip current conditions," it said.

The storm is expected to bring heav

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