'Salt lake city tornado' presentation slideshows

Thunderstorms

Thunderstorms. At any one time, nearly 2,000 thunderstorms are occurring around the world. The three conditions necessary for a thunderstorm to form are: 1) lots of moisture in the lower atmosphere 2) The now warmer air begins to rise 3) the atmosphere must be unstable.

849 views • 67 slides

Tornadoes

Tornadoes. What is a tornado?. A tornado is a violently rotating column of air extending from a thunderstorm to the ground.

351 views • 20 slides

Tornadoes

480 views • 14 slides