In South Dakota Wednesday, one of the chase teams at TVNWeather.com captured yet another dramatic tornadic phenomenon: suction vortices. Suction vortices are smaller whirlwinds embedded within a ...

On the roof, we installed a vertically oriented radar to measure the updraft winds inside the parent tornado and suction vortices contained within, and an anemometer to measure the horizontal ...

Some of the worst and strangest damage seen after big tornadoes is attributable to the small, quick “suction vortices” that circulate within a large tornado, sort of like horses going around ...

According to the National Oceanic and Atmospheric Administration, tornadoes generally contain multiple—usually two to five—mini-twisters called subvortices or suction vortices. Although these ...

Timmer described the footage as showing an "up-close helical suction vortex action" tornado as it spanned the Iowa field. Watch as an Iowa tornado destroys a wind turbine The drone footage starts ...

In his study of the outbreak, Fujita discovered smaller, helical markings in the damage, indicative of more intense circulations embedded in tornadoes he called suction vortices.