Heat and smoke from wildfires are spreading across the country this week, impacting air quality and prompting heat alerts from Canada to the Gulf of Mexico. A ridge of high pressure has expanded over ...

What was an Extreme Heat Warning in the greater Seattle area is now back to a Heat Advisory. Tuesday will be the last day of the heat alerts around western Washington before a stronger push of marine ...

It's a sizzling start to the third week of August as several million people across the central U.S. face potentially deadly heat. While it is forecast to ease in the coming days in the middle of the ...

For life-saving weather alerts, customized messages on conditions and forecasts, and videos detailing upcoming weather events, download the WSMV 4 First Alert Weather app for iPhone or Android.

Southern California is bracing for the most intense heatwave of the summer, with extreme heat warnings and watches in effect starting Wednesday, Aug. 20. The National Weather Service warns of ...

Health experts have raced to modernize alert systems as extreme heat kills thousands in the U.S. every year. Those efforts are being canceled. Health officials in North Carolina were worried that the ...

SANTA BARBARA COUNTY, Calif. - High pressure is keeping our temperatures above normal Tuesday, especially inland, as the coast remains a bit more comfortable with the help of onshore flow and a ...

A federal judge has ordered the Louisiana Department of Public Safety and Corrections to keep heat safety measures in place another 90 days for field workers at the Louisiana State Prison at Angola. U ...