Basic information about tornadoes, from the NOAA National Severe Storms Laboratory.

A tornado is a rotating column of air that is in contact with the surface of Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud.

Aug 28, 2019 · What exactly is a tornado, one of the deadliest storms on Earth? Learn how tornadoes form, where they happen most often—and how to stay safe. A dying tornado in the …

Oct 22, 2025 · What is a tornado? A tornado is a relatively small-diameter column of violently rotating air developed within a convective cloud that is in contact with the ground, usually in …

Tornadoes are some of the most destructive forces of nature. Learn how tornadoes form, how they are rated, and the country where the most intense tornadoes occur.

This website is designed to teach you how to stay safe when a tornado threatens. If you know what to do before, during and after a tornado, you will minimize your risk of injury and increase …

Before a tornado hits, the wind may die down and the air may become very still. A cloud of debris can mark the location of a tornado even if a funnel is not visible. Tornadoes generally occur …

Tornadoes are violently rotating columns of air that extend from a thunderstorm to the ground. Tornadoes can destroy buildings, flip cars, and create deadly flying debris. A tornado can: …

Tornado facts and information for students, teachers and tornado enthusiasts. Learn about one of the most violent weather events on our planet.

This map contains continuously updated U.S. tornado reports, wind storm reports and hail storm reports. You can click on each to receive information about the specific location and read a …