MIAMI - Forecasters have issued a tropical storm warning for coastal areas in the southernmost parts of Mexico after a storm formed in the eastern Pacific Ocean.
The National Hurricane Center said late Tuesday that Tropical Storm Barbara was about 120 miles (193 kilometers) south-southwest of Salina Cruz, Mexico.
The storm has maximum sustained winds of 45 mph (72 kph) and was moving north-northeast at 3 mph.
However, forecasters said the storm is expected to strengthen over the next day or two. The storm's center should reach the coast of southern Mexico during the day on Wednesday.
A tropical storm warning is in effect in Mexico from Lagunas de Chacahua to Boca de Pijijiapan.
The storm is expected to bring 3 to 6 inches of rain over southern Oaxaca, Mexico.