A supercell thunderstorm this week produced an Illinois record for largest hailstones. What is the largest hail recorded in ...

Supercell thunderstorms are dangerous severe storms that unleash destructive hail, roaring winds and powerful tornadoes. They ...

Severe storms eyeing the Chicago area Tuesday have the potential to produce supercells, considered to be one of the most ...

At least four tornadoes from a powerful supercell tore across parts of Illinois and Indiana Tuesday, killing two people in ...

Intense thunderstorms spawned at least four tornadoes across northern Illinois and northwest Indiana on Tuesday, with at least two killed in Indiana as damage assessments continue.

Thursday was a big day for storm chaser Dan Fitts , who clocked winds of 98.4 mph near Chugwater. Fitts has spent three decades pursuing supercells ...

THREE RIVERS, MI - A spring-like storm turned violent quickly Friday afternoon, spawning at least two tornado touchdowns that ...

It's a critical and fascinating process. All hands on deck at the Chicago Office of the National Weather Service, as 10 ...

Lakes that were still ice-covered and a record-breaking 76-degree day: How extreme conditions fueled deadly tornadoes in ...

Several damaging tornadoes and grapefruit-size hail struck Illinois and Indiana late Tuesday amid a widespread severe-weather outbreak across the central United States.

Editor’s Note: Wednesday afternoon, the National Weather Service confirmed at least one tornado touched down Tuesday near Wheatfield, Indiana, with peak winds near 110 mph, ranking as an EF-1 in ...

The calendar still says it's winter, but Mother Nature has been ignoring that. We're off to a busy start this storm season.