Strong warm updrafts carrying large amounts of moisture interacting with fast-moving cool, dry winds above cause tornadoes when the two air currents begin to swirl around each othe...
Clouds form when water vapor condenses in the air. This releases heat, which increases the updraft temperature and the kinetic energy of air movement. In supercell thunderstorms, updrafts are strong and may create a vortex of air that may form a tornado.
Most scientists consider this to be a simplified and incomplete explanation. The finer details of tornado formation and dissipation are still unknown.
May 30, 2013 ... A description of the special conditions that can cause a thunderstorm to become
Jul 10, 2012 ... An average of 800 tornadoes are reported each year, resulting in 80 deaths and
1,500 injuries. Let's take a look at what causes these ...
The important aspect of the definition is that the tornado
or funnel cloud is in contact with the ground. While at first it would seem this is a consequence of the Coriolis effect , tornadoes
are over almost as quickly as they start. In the United States, a unique com... More »
A tornado is a violent rotating column of air extending from a thunderstorm to the
... Waterspouts can sometimes move inland, becoming tornadoes causing ...
Apr 8, 2014 ... The U.S. has more tornadoes than anywhere else on Earth, but their sudden
twists and turns still make them mysterious and mesmerizing.
Dec 12, 2013 ... This is a Science Made Easy Video. A quick and fun cartoon lesson about
tornadoes. Great for teachers and students- hope you guys enjoy!
The most common and practical way to determine the strength of a tornado is to
look at the damage it caused. From the damage, we can estimate the wind ...
The truth is that scientists don't fully understand how tornadoes form. ... At the
time of this radar scan, a tornado was on the ground. ... What causes tornadoes?