Rain, tropical-storm-force winds and even the potential for some tornadoes are possible for some portions of Florida with Tropical Storm Rafael.

A hurricane warning is in effect for the Cayman Islands and parts of Cuba, as tropical storm conditions are expected in Florida later in the week.

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.