planetpals title
planetpals.com
Home
Earth Zine Magazine
Earthday
Teachers/ Parents
Complete Site Navigation
Contact Us
Advertise
Privacy Policy

Earth Related Pages:

About Planet Earth
Earth Fast facts
Wonders of the World
Earth Matters
Planetpals Recycle Center
Thinking Green Class Projects
Worldly Wise Tips
The Story of Earthday
Earthday Activity Page
Green Associations
Let's Weather Together
A Look at Eco Books
Food Chain Chart
Earth Size Chart
Ecology Dictionary


Let PLANETPALS teach you about TORNADOES where and why they happen.

tornado

Tornado

Breezy Says "Keep cool--that's my rule!"

breezy

Tornadoes:

What in the World's Are They?

What makes tornadoes dangerous is that their energy is concentrated in a small area, perhaps only a hundred yards across.

Tornadoes can form any time of year, but many occur in the stormy spring, when these warm and cold air masses collide. Storms often are triggered where two different kinds of air masses meet, such as dry and moist air masses, or cold and warm air masses.

Most tornadoes form from thunderstorms. They start with warm, moist air from ONE SIDE and cool, dry air from THE OPPOSITE SIDE and When these two air masses meet, they create instability in the atmosphere.

A change in wind direction and a greater wind speed with increasing height creates an invisible, horizontal spinning effect in the lower atmosphere.

Rising air within the updraft tilts the rotating air from horizontal to vertical. An area of rotation, 2-6 miles wide, now extends through much of the storm. Most strong and violent tornadoes form within this area of strong rotation.

tornado diagram

Where in the World's Are There Tornadoes?

Tornadoes occur just about everywhere in the world, from India to Australia, and all over the United States, but the most famous and active breeding ground for tornadoes is Tornado Alley.

Tornado Alley extends from Texas up through Oklahoma, Kansas and Nebraska to the Dakotas. Warm, moist air from the Gulf of Mexico clashes with cold air from the north and fuels storms that form there.

Fluffy says: "When I go round and round - you don't want me on the ground"

fluffy cloud

World's Biggest Tornadoes

The most violent tornadoes are capable of tremendous destruction with wind speeds of up to 300 mph. They can destroy large buildings, uproot trees and hurl vehicles hundreds of yards. They can also drive straw into trees. Damage paths can be in excess of one mile wide to 50 miles long. In an average year, 1000 tornadoes are reported

Deadliest North America Tornadoes

   


Strange Weather and Unusual Natural Occurrences Learn about Haloes. Sun Dogs, Sun Ghost, Belt of Venus,Noctilucent Clouds,Aurora Borealis,Mammatus Clouds, Red Rain, Moon Bows, Colored Moons, St Elmos Fire, Fire Winds, Pyrocumulus Clouds, Lenticular Clouds, Sun Pillars, Diamond Dust, Non-aqueous Rain, Virga, Katabatic Winds, Fire Rainbow, Green Ray, Ball Lightning, Sprites, Jets, and Elves, Snow Rollers, Brackens, Mirages, Ice Fall / Bomb, Giant Hailstones, Sea Monster or Spinning Water, Gravity Wave, Super Cell, Blue Moon.

Let's see whether you know
enough about weather!
Take the WEATHER QUIZ

Next The Quiz 

SunnyRay says "It's a lot of fun with sun"

sunnyray

 

NEXT:

Weather Take a look at the size of the earth!
See The Food Chain Learn Earth Fast facts
Learn about ecology SEE the wonders of the world
Legal Restrictions, Privacy Policy,Terms of Use applicable to this site
Webmaster: Planetpals Copyright 1991 Judith Gorgone-all rights reserved