As a heat wave hits multiple U.S. states, some areas are have been placed under extreme heat watches and warnings.

The Hurricane center is monitoring 4 tropical waves. A dangerous heat wave will bake central, eastern US. Florida heat index ...

A heat warning (sometimes called an excessive heat warning) is the most serious alert. It’s issued when dangerously high heat ...

Heat advisories and extreme heat watches are in place across much of the U.S., lasting until Tuesday with the potential to be ...

A wave of record-breaking humidity and heat is surging across the United States, with about 265 million people forecast to ...

Experts fear worst is yet to come. But a quiet start to the season does not necessarily mean it will continue and experts–who ...