A dangerous multi-day severe weather outbreak is taking aim at Oklahoma and Kansas this weekend, with federal forecasters warning that supercell thunderstorms could unleash large hail, damaging winds, ...

A supercell thunderstorm can tower 10 or more miles high. It can spit out pinpoint lightning strikes, drop grapefruit-size hail, rage for hours and traverse hundreds of miles. But the secret to a ...

While supercells are the most likely type of thunderstorm to produce severe weather, they are also the least common.

Add Yahoo as a preferred source to see more of our stories on Google. Forecasters are tracking a storm moving over the Texas Panhandle that could develop supercells, slamming towns with large hail or ...

A series of storms, including supercells, threatens to dump rain, hail and create a tornado risk for a vast section of the country. The most severe weather is expected on Monday. Some Moderate High ...

Could severe storms in Texas have an impact on Tuesday night's Game 5 between the Minnesota Wild and Dallas Stars? All we know for now is that NOAA's Storm Prediction Center has slapped red blob, ...

Severe weather risks remain in parts of Texas as active weather moves in from the Texas-Oklahoma border. As rain chances climb in the Texas Panhandle, forecasters now say supercells may develop, ...