2019年8月28日 · U.S. tornadoes cause 80 deaths and more than 1,500 injuries per year. What is a tornado? A tornado is a violently rotating column of air that extends from a thunderstorm to the ground. It's...

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

What is a tornado? A tornado is a narrow, violently rotating column of air that extends from a thunderstorm to the ground. Because wind is invisible, it is hard to see a tornado unless it forms a condensation funnel made up of water droplets, dust and debris. Tornadoes can be among the most violent phenomena of all atmospheric storms we experience.

2025年1月2日 · tornado, a small-diameter column of violently rotating air developed within a convective cloud and in contact with the ground. Tornadoes occur most often in association with thunderstorms during the spring and summer in the mid-latitudes of both the Northern and Southern Hemispheres.

Check out our ten top facts about tornadoes… 1) Tornadoes – also known as “twisters” – are violently rotating columns of air that reach from a storm cloud to the earth’s surface.

Also known as twisters, tornadoes are violently spinning, funnel-shaped columns of air that stretch from the dark thunderclouds they form in all the way to the ground. The wind from a tornado...

A tornado is a violently rotating column of air extending from the base of a thunderstorm down to the ground. Tornadoes are capable of completely destroying well-made structures, uprooting trees, and hurling objects through the air like deadly missiles. Tornadoes can occur at any time of day or night and at any time of the year.

2024年7月16日 · Each year more than 1,200 tornadoes take place in the United States. These destructive and awe-inspiring events are notoriously difficult to predict. Yet, NOAA and others are deepening our understanding of tornadoes and improving warning times to save lives.

A tornado warning means that a tornado has been spotted, or that Doppler radar shows a thunderstorm circulation which can spawn a tornado. When a tornado warning is issued for your area, seek safe shelter immediately.

2011年4月17日 · What is a tornado? A tornado is a narrow, violently rotating column of air that extends from the base of a thunderstorm to the ground. Where do tornadoes come from? Tornadoes come from thunderstorms. Where do tornadoes occur? Tornadoes can occur whenever and wherever conditions are right!