MIAMI (AP) — Tropical Storm Carlotta is growing stronger over the Pacific Ocean as it moves away from Mexico and could become a hurricane by Thursday night or Friday, forecasters said.

The National Hurricane Center in Miami said Thursday night that Carlotta's maximum sustained winds were 65 mph (105 kph). The system was centered about 395 miles (635 kilometers) south-southwest of the southern tip of Mexico's Baja California, moving west-northwest at 12 mph (19 kph).

Swells generated by the storm will likely cause life-threatening surf and rip current conditions through the weekend along Mexico's west-central mainland coast and the southern Baja California peninsula, the hurricane center warned.