Multiple states are under extreme heat warnings, advisories or watches on July 23, according to the National Weather Service.

Maps are showing the number of shark sightings spiking on the East Coast, likely as the ocean predators make their way to ...

The map embeds below identify areas where the heat index is forecasted to reach NWS-defined levels from "Caution" (80 degrees Fahrenheit) to "Extreme Danger" (above 125 degrees). More in U.S.

Days of tornadoes, damaging winds, large hail expected in central states. An active severe weather pattern will target the northern Plains, Upper Midwest and Mid-Atlantic.

Here's everything you need to know about the heat wave. 'Rare' and 'dangerous': Record-smashing heat wave to scorch tens of millions. National heat index map: See which states feel hottest. The ...