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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? - Dangerous Weather


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 will ...

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 »
By Rachelle Oblack, About.com Guide

How Do Tornadoes Form? - LiveScience


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 ...

How Tornadoes Form and Why They're so Unpredictable


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 ...

Tornadoes - Weather Wiz Kids weather information for kids


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 these ...

How do tornadoes form? - CNN Video - CNN.com


Apr 2, 2015 ... CNN meteorologist Jennifer Gray explains how tornadoes form and why they are one of the most dangerous weather phenomena on Earth.

Where Do Tornadoes Form? | Weather Underground


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.

Popular Q&A
A: When moist Gulf Sea air meets cool Canadian air. The warm air rises, clouds form and storms start to develop. Wind shear winds in different altitudes, blowing i... Read More »
Source: www.cyberlodg.com
Q: Why do tornadoes form?
A: Well, no one really knows exactly why tornadoes form. There are two main ingredients needed for tornado formation: wind shear and thunderstorms. Thunderstorms u... Read More »
Source: wiki.answers.com
Q: Why do tornadoes form?
A: Well, noone really knows exactly why tornadoes form. Many people just come up with theories and stuff. I've come up with a believable theory of why tornadoes fo... Read More »
Source: wiki.answers.com
Q: Why do tornados form?
A: Tornadoes formation starts like this: A change in wind direction and increase in speed creates Read More »
Source: www.chacha.com
Q: Why do tornadoes form?
A: When dry, cold air and moist, warm air collide, storms can develop. Since cold air sinks and warm air rises, this can create an updraft and downdraft. When a st... Read More »
Source: answers.yahoo.com