Straight out of the March textbook, a major storm will hammer in the Midwest this weekend, followed by a blast of cold air into the Southeast. Here's the latest forecast.

For the third time this month, we're forecasting an outbreak of severe thunderstorms. This time, the threat is mainly damaging winds, but a few tornadoes are possible. Here's where and when the threat is in play.

A super El Niño is possible by the end of the year. Here's what warming waters in the Pacific could mean for this summer and the rest of the year.

Historic heat or another dose of winter? The seasons are battling it out across the U.S. as we head into next week.

Hawaii’s Kilauea volcano erupts more frequently than almost every other volcano on Earth, but Tuesday’s episode was different. The 1,000-foot-high lava fountains were responsible for temporarily closing parts of the park and a nearby highway. The reason? Falling ash and glassy fragments known as tephra made it too dangerous for visitors and travelers alike. Watch this video to see more of the eruption.