Sunday will likely be the most active day for severe storms this weekend, as the threat area stretches across much of the ...

(CNN) — High temperatures affect public health across wide swaths of the United States each summer, causing spikes in emergency room visits and hundreds of heat-related deaths. As temperatures rise, ...

(CNN) — A cross-country storm will explode in strength as it moves over the central United States Friday, delivering extreme ...

(CNN) — An unusually powerful March storm is ... firing up severe thunderstorms on its southern side and wintry weather to its north. It’s the first big test for the National Oceanic and ...