Extreme Weather Maps: Track the possibility of extreme weather in the places that are important to you. Heat Safety: Extreme heat is becoming increasingly common across the globe. We asked experts for guidance on how to stay cool.

A weather system growing more powerful over the central Caribbean was designated Tropical Storm Sara on Thursday, becoming the 18th named storm of what has been a brutal hurricane season for Florida and the Southeast.

If the tropical depression intensifies, it will become the 19th named storm of this year's Atlantic hurricane season.

The National Hurricane Center is reporting a high chance of a tropical depression forming over the next 48 hours, tracking across the Caribbean Sea. All eyes are on the Caribbean, where a developing tropical depression could potentially turn into the next hurricane to hit Florida,