(RNN) - Tropical Storm Carlotta is now a Category 1 hurricane, with maximum sustained winds of 80 mph.
The storm is situated 330 miles southeast of Acapulco, Mexico in the Pacific Ocean, moving about 12 miles per hour.
"Carlotta appears to be undergoing rapid intensification and is likely to continue until the center (of the storm) moves near or over the Mexican coast in 18 hours or so," according to the National Hurricane Center.
The storm could become a Category 2 as it approaches Mexico.
Carlotta is slowly moving northwest, hugging the Mexican coastline. A hurricane warning stretches from Salina Cruz to Acapulco in Mexico.
The National Hurricane Center predicts 3 to 5 inches of rain in the Mexican states of Chiapas, Buerro and northern Oaxaca and 6 to 10 inches in southern Oaxaca. A large storm surge is also expected.
The Government of Mexico has issued a hurricane warning for the Pacific coast of Mexico from Salina Cruz to Acapulco.
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