Cellphone video recorded by an Oklahoma teacher at Briarwood Elementary School shows the exact moment an E-F5 tornado tore through the building as she attempted to calm students' fears by telling ...

One of the state's deadliest tornadoes in history, the 1974 Xenia F5 tornado, occurred in Southwest Ohio. Tornadoes need atmospheric instability caused by warm, moist air near the ground, and cool, ...