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

Meteorologists are closely monitoring a developing tropical disturbance near Jamaica that could soon become Tropical Storm Sara, marking the Atlantic hurricane season's 18th named

Tropical Storm Rafael formed Monday afternoon in the Caribbean Sea, where it is expected to cross Jamaica, the Grand Cayman Islands, and Cuba, before entering the Gulf of Mexico this week. It is forecast to strengthen into a hurricane before weakening back down to a tropical storm in the Gulf.