A tornado is a violently rotating column of air that spins while in contact with both
the surface of ... The Fujita scale rates tornadoes by damage caused and has
been replaced in some countries by ...
Sep 18, 2016 ... The formation of a tornado follows a clear set of steps. ... This change occurs at
an increasing altitude and creates an invisible horizontal ...
www.ask.com/youtube?q=What Creates a Tornado&v=lmWh9jV_1ac
Aug 19, 2014 ... View full lesson: http://ed.ted.com/lessons/how-do-tornadoes-form-james-spann
Tornadoes are the most violent storms on Earth, with wind ...
The intense spinning of a tornado is partly the result of the updrafts and
downdrafts in the thunderstorm (caused by the unstable air) interacting with the
May 11, 2015 ... A tornado lowers to the ground near Chickasha, Oklahoma, on May 6. ... Half of
those deaths are caused by the strongest one percent of the ...
Tornadoes are associated with large (supercell) thunderstorms that often grow to
... and hail in the thunderstorm cause the funnel to touch down creating a tornado
Where will you go when a tornado warning has been issued for your county or
city? Is it a ... turn them into missiles. Flying debris cause the most tornado deaths
The first thing that is needed to produce a tornado is a thunderstorm. ... The warm
air rises from the lower atmosphere causing an updraft, which mixes with the ...
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 ...
It is generally believed that tornadic wind speeds can be as high as 300 mph in
the most violent tornadoes. Wind speeds that high can cause automobiles to ...