AMES, Iowa – The Iowa State University Tornado Simulator kicked up a thick and slowly spinning funnel cloud over a model of a small town, overwhelming the miniature streets, buildings and homes.

Conceptual diagram of the influence of horizontal vortex tubes on tornado genesis and development during the intensification stage: (a) the effect of horizontal vortex tubes on tornado rotation; (b) ...

Tornadoes have caused severe disasters around the world, and have been one of the most violent and damaging natural hazards to human life and property. Experimental simulation of tornado-like vortices ...

The Deer Creek Fire created a pyro-vortex east of Moab, Utah, as it burned in mid-July. Credit: Jason Kirks/BLM Around 12:40 p.m. on July 12, firefighters on the Deer Creek Fire, east of Moab, Utah, ...