Tropical Storm Dora gathered force off of Mexico's Pacific coast on Sunday.
The storm originally formed as a Tropical Depression Four-E on Saturday and was later upgraded to a tropical storm, according to The Weather Channel. A tropical storm typically has wind speeds between 39 mph and 73 mph.
Earlier on Sunday, Dora was centered about 180 miles southwest of Acapulco, Mexico and was moving toward the west-northwest at 12 mph, according to the National Hurricane Center.
Here's a look at Dora's projected path:
Many forecasters are saying Tropical Storm Dora could reach hurricane strength by Monday.
Forecasters said the storm will likely move parallel to the coast and eventually curve west.
Although Dora poses no threat to the U.S. mainland, the hurricane center said Dora could bring 1 to 3 inches of rain to coastal sections of Mexico's Oaxaca, Guerrero, and Michoacan states.
The Associated Press contributed to this report.