Storm Team 10 and the National Hurricane Center are monitoring Tropical Depression 19, which has formed in the Caribbean Sea and is expected to become Tropical Storm Sara in the next 24 hours. Global models have backed off a stronger system developing,

Tropical Storm Sara has formed in the Caribbean Sea and is forecast to continue strengthening, according to the National Hurricane Center.

Tropical Storm Sara formed in the Caribbean Sea Thursday afternoon, posing a threat to Central America, where forecasters expect the system to unleash heavy rainfall and flash flooding, according to the National Hurricane Center in Miami.