Tornados are funnel clouds that rotate at at least 40 mph.

How Do Tornados Form?

Tornados form when a warm front and a cold front mix together. A warm front is a large air mass that is less dense than cold air. Clouds don't form in warm fronts. Cold fronts are also large air masses. They are more dense than warm fronts. Therefor they don't rise. Large amounts of clouds form in cold fronts. When the 2 air masses mix it creates, a cumulus cloud. A cumulus cloud is a large storm cloud.

Indiana, 2005

In 2005, Indiana was hit by a large tornado. The tornado caused 25 deaths. It also destroyed over 500 homes and businesses. Injuring 200 other people. This was the most deadly tornado in Indiana in over 30 years.

Minnesota, 1939

On June 19 1939, a massive tornado drove on a 250 mile long path. On the way this monstrosity killed 10 people and injured 222 more. With more than 500 homes damaged or destroyed. This disaster left many people homeless.

Impact On Human Life

Tornados have tormented humans ever since the beginning. In our advanced civilization many still die from tornados, but increasingly less. With our technology we are able to warn people up to 20 min before the tornado strikes. Scientists are now able to tell if a tornado is likely to form.

What Can You Do To Prepare?

In order for you to be prepared for a tornado, you must have...

  • Extra food
  • Water Bottles
  • A small radio (battery powered)
  • Games

What Are Scientists Doing?

Scientists are currently monitoring any likely storms. In order for them to see a tornado forming they use a system called a Dopper radar


Dispezio, Michael A. Science Fusion. Orlando, FL: Holt McDougal/Houghton Mifflin Harcourt, 2012. Print.

"The Fujita Scale." The Fujita Scale. Web. 13 Mar. 2015. <>.

"Maple Grove, 75 Years After the Tornado | Maple Grove." Comunity Life Magazine. Web. 13 Mar. 2015. <>.

Woods, Michael, and Mary B. Woods. Tornadoes. Minneapolis, MN: Lerner Publications, 2007. Print.

World Book Online - E Library Research Resources




Funnel Clouds - Cumulusnimbus clouds

Cumulus clouds - Fluffy clouds

Nimbus clouds - Storm clouds

Warm front - Large air mass less dense than Cold Front

Cold Front - Large air mass more dense than Warm Front


False - The safest part of the basement is the Southwest corner

True - Tornados usually come from the Southwest. The safest part of the basement is a area with no windows or loose, small objects.

False - You want high ground when a tornado is coming toward you.

True - You want to get to the lowest point possible lying flat on the ground protecting your neck.

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