This striking satellite image highlights the aftermath of a major hailstorm in Alberta, Canada, which carved a giant "scar" in the landscape, around half as long as the Grand Canyon. The extreme event ...

4 p.m. National Weather Service forecasters issued a tornado warning for Weld County until 4:15 p.m. Radars detected a severe thunderstorm near Eaton, 7 miles northwest of Greeley and moving northeast ...

A powerful and quick-moving storm swept through the Twin Cities metro area Sunday night, dumping golf ball-sized hail across a swath starting in Plymouth, swooping through Golden Valley, Roseville and ...

Harris County and several of the Houston metro area counties west of Interstate 45 are under a severe thunderstorm watch Monday through 8 p.m. because of developing storms that could deliver large ...

A wave of severe storms will move across the Midwest and northern Plains throughout the middle of the week, bringing a risk of severe thunderstorms, damaging winds, flash flooding, and possible ...

An unusually warm winter will bring severe thunderstorms to much of the country as the Western US is blanketed in heavy snow. Meanwhile, areas of ten states in the West are under winter storm warnings ...

(CNN) — Millions across parts of the Central Plains are at risk for severe weather Sunday that could bring tornadoes, tennis ball-sized hail and damaging winds to the area. While stormy conditions ...

Update 5:12 p.m.: The FAA issued a ground stop for flights out of DIA until at least 5:30 p.m. due to thunderstorms. Thunderstorms delay more than 500 flights at DIA Update 3:45 p.m.: A severe ...

Update: Here's why Fort Collins didn't get hail Thursday (and the Fourth of July weather forecast) There's a growing risk of severe storms, including damaging wind, heavy rain and tennis-ball size ...