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

Severe storms eyeing the Chicago area Tuesday have the potential to produce supercells, considered to be one of the most powerful types of storm. But what exactly are they and what makes them so dangerous?

Bob Wehrle sat in his driveway Wednesday morning and looked at the lot where his house once stood. His belongings and debris were scattered across his lawn, and his trailer was frozen in the air,

Supercell thunderstorms are dangerous severe storms that unleash destructive hail, roaring winds and powerful tornadoes. They are responsible for nearly all of the United States m

Dangerous storms with tornadoes and hail are tracking across the central US Tuesday evening. This threat of notably strong tornadoes has prompted the highest severe thunderstorm risk in

Severe Thunderstorm Warnings are being issued across parts of West Michigan and Southwest Michigan Tuesday night as a series of supercell storms are creating some dangerous conditions. Heavy rainfall and huge hail - some measuring nearly 3 inches across - are being reported across West Michigan.

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.

Tornadoes in Illinois and Indiana killed 2 people, flattened homes, and tore up trees as severe storms moved over the U.S. See the damage here. (AP Photo)

One supercell thunderstorm was particularly strong and long-lived, starting near Del Rio and tracking east-northeast through the Texas Hill Country.

Not all thunderstorms can produce tornadoes - only about 30% of supercell thunderstorms actually spawn these rotating columns of air. Supercells are severe thunderstorms with intense, rotating updrafts and are largely responsible for significant tornado ...