F5 tornado raked through two northern Illinois counties on the far southwestern edge of Chicagoland. The twister tore a ...

The weather forecast for Will County called for thunderstorms on Aug. 28, 1990. No advanced tornado warnings or watches were issued. Then, an F5 twister tore into parts of Oswego, Crest Hill, Joliet ...

The Plainfield tornado touched down on Aug. 28, 1990, and remains the only F-5 tornado ever recorded in the state of Illinois. Even more staggering, it remains the strongest August tornado on record ...

He then rated the Fargo tornado an F5, the highest level on the scale. That remains one of only two F5s (or EF5s) on record in North Dakota, including a May 29, 1953, twister in Ft. Rice.

Seventy years before the first public tornado warning and over a century prior to a nationwide Doppler radar network, the most violent of tornadoes tore through an Iowa town.

Each of these would be a major weather event anywhere in the country. But in one bizarre day, both the strongest possible tornado and an epic snowstorm happened in the same state.

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 ...

He then rated the Fargo tornado an F5, the highest level on the scale. That remains one of only two F5s (or EF5s) on record in North Dakota, including a May 29, 1953, twister in Ft. Rice.