Tropical Storm Odile formed off Mexico's Pacific coast on Wednesday and could grow into a hurricane, but it is expected to stay away from land, forecasters said.

The storm was 350 kilometers (220 miles) southwest of the port of Lazaro Cardenas, with maximum sustained winds of 65 kilometers (40 miles) per hour, the National Weather Service said.

Odile could produce heavy rain in the coastal states of Guerrero, Michoacan and Colima, and become a hurricane late Thursday, just days after Hurricane Norbert brushed the northwest coast, the service said.