The details of how and why tornadoes form and dissipate remain poorly understood. Most tornadoes last from a few seconds to a few minutes; only rarely do they last more than 10 minutes.
However, the vast majority of tornadoes occur in the Tornado Alley region of the
..... Tornadic storms do not contain more lightning than other storms and some ...
How Do Tornadoes Form? Tornadoes are associated with large (supercell)
thunderstorms that often grow to over 40,000 feet. A column of warm humid air
www.ask.com/youtube?q=Why Do Tornadoes Form&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 ...
Other states with a high liklihood of tornado
formation from different Tornado
Alley maps show incidences averaged over time. Although most often reported in the United States, tornadoes
can occur worldwide. If you live more to the southern portions of Tornado
Alley, ... More »
May 12, 2014 ... Though scientists don't entirely understand how tornadoes form, they do have a
good idea about the conditions that cause tornadoes to ...
May 11, 2015 ... How Tornadoes Form and Why They're so Unpredictable. A look at storm science
... Here's what scientists do know: A tornado, or twister, is a ...
How do tornadoes form? Most tornadoes form from thunderstorms. You need
warm, moist air from the Gulf of Mexico and cool, dry air from Canada. When
Apr 2, 2015 ... CNN meteorologist Jennifer Gray explains how tornadoes form and why they are
one of the most dangerous weather phenomena on Earth.
The vast majority of tornadoes occur east of the Rocky Mountains in the deep
South and a region we call "Tornado Alley," which is located in the Great Plains.