But it's called the "Enigma Outbreak" because there's no definitive ... of the outbreak laid the foundation for the future of tornado and severe thunderstorm forecasting in the 20th century.

A "tornado outbreak" is reportedly possible in three U.S. states this week. While most of the country is getting nice weather ...

April 16, 2011, 14 years ago today, was the third consecutive day in a tornado outbreak that raked across the South. On that day, alone, 58 tornadoes tore through parts of the Carolinas ...

Most recall the devastating, state-wide April 27, 2011, severe weather event, but it often overshadows the major tornado outbreak which occurred a few weeks prior. While the Tennessee Valley was ...

More than 36 million Americans are on alert for severe weather in the Upper Midwest, with thunderstorms, large hail and a tornado outbreak possible starting Monday. On Sunday, 10 tornadoes and hail ...