About half the country is under active heat advisories on Monday, affecting more than 198 million Americans, according to the ...

Jacksonville, North, Northeast Florida: Dangerous heat today, with heat index of 108 to 115. Extreme heat warning and heat ...

Major cities under heat alerts Monday include Dallas, Oklahoma City, St. Louis, Chicago, Memphis, Atlanta, Tampa, Charleston, New York, Philadelphia and Boston.

One severe thunderstorm is capable of producing strong winds. But when they team up in summer, they can produce widespread ...

The National Weather Service in San Juan, Puerto Rico, has issued heat warnings and advisories for Puerto Rico and the U.S.

There's some good news in the tropics: All is quiet, even though there are four tropical waves out there, including three in ...

Baltimore anticipates a heatwave with potential severe weather disruptions, thunderstorms, and high humidity advised by the ...

A fierce and long-lasting line of severe thunderstorms called a derecho is likely to tear across the Northern Plains on ...

We are tracking storms developing in western Minnesota, as parts of the Twin Cities metro and areas to the west are under an ...

More damaging thunderstorms will race through the Northern Plains tonight. We’ll be on the edge of this “Ring Of Fire” ...