Tornadoes

1
Tornadoes

• By Alex and Mark

2
Introduction

• Tornadoes are among the most violent and
  terrifying of all natural event.
• No one has lived through them ever forgets the
  strength and fury of these storms.
• Perhaps youve been caught in a tornado.
• Or you may have seen pictures on television or
  read about them.
• Either way you probably have lots of questions.

3
How they form

• A thunderstorm is mostly where tornadoes are
  born.
• The storm begins as warm air, humid air rises
  upward from the ground creating updrafts.
• These updrafts cool in the upper atmosphere.
• As they cool the moister in the in them forms
  clouds.
• The water droplets in the clouds grow larger as
  water vapor around them liquefie coudenses.
• No one can prevent storms, but weather reports
  can predict and warn us when a may hit.

4
Types

• They are a lots of types of tornadoes, like Dust
  Devil, Gustnado, Land Spout, Water Spout,
  tornadoes, of course, Vortex, Twister, Wedge
  Tornado, Fire Whirl, and Steam Devil.

5
Power

• In a average year 800 tornadoes are reported
  nation wide.
• Tornadoes are some of the most powerful thing in
  the world.
• They can destroy houses, malls, stores,
  aparments, cars, trees, trucks, schools, and lots
  of other things.

6
Do tornadoes twist

• Yes tornadoes twist.
• A tornado is a windstorm.
• A tornado is white at first, then they turn black
  and dark gray.
• A thunderstorm is before a tornado and so do
  hail-storms.
• Tornadoes are less than one mile tall.
• A tornado is (1.6km) wide.
• Tornadoes last less than 1 hour.
• Most tornadoes move from the North-East.
• Tornadoes can move from 36 miles per-hour the
  dangers ones can move 70 miles an hour.
• More than 800 tornadoes are reported each year.
• Mountains CANT stop a tornado.
• Tornadoes can strike more than once in the same
  place.
• A tornadoes longest path is from a twister.
• Each year 230 people are KILLED in the U.S.A.
• A train cant survive a tornado, unless it is not
  in a tornadoes path.

7
ENDING

• Thats how powerful these storms are.
• We hope you learned a lot of facts about
  tornadoes.
• Have a nice day.
• THE END.

8
(No Transcript)