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

Supercell thunderstorms and tornadoes brought devastation to several central states earlier this week, and the danger is far ...

‘Supercell’ thunderstorms hit Illinois and Indiana, after eight people killed by tornadoes in US Midwest last week.

Several intense supercell thunderstorms moved across northern Illinois and northwestern Indiana on Tuesday, including one ...

Oklahoma has experienced a surge in tornado activity this year, and more severe weather is possible Tuesday.

Joplin is under an “enhanced risk” of severe thunderstorms and tornadoes as well as severe winds and hail beginning Friday ...

Sunday and Monday are First Alert Weather Days for gusty rain turning to snow ...

A meteorologist at Northern Illinois University explains how hailstorms form and whether Chicagoans should expect more giant chunks of hail in future storms.

The agency is adding a “conditional intensity index” that predict how intense a storm might be.

A sprawling storm system that has already generated preliminary tornado and wind reports, according to the Storm Prediction ...