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Storm Watchers:

Storm Watchers:. Click to Continue. Motivation. CLICK TO PLAY.

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Storm Watchers:

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  1. Storm Watchers: Click to Continue

  2. Motivation CLICK TO PLAY During this Storm watchers presentation, you will learn about a few different tornadoes and how actual Storm Chasers rate the intensity of the tornadoes they see. You will also be tested periodically to make sure you’re keeping up with all the facts about these terrifying twisters! Click to Continue If you Expirence Difficulties with the video, try clicking here.

  3. What The Buttons Mean: Go to Home Slide When this button appears, you will be quizzed on the information you have learned. (This button is nonfunctional, it is just a preview) Go to Previous Slide On to Quiz Go to Next Slide

  4. In This Presentation: • You will learn about three types of Tornadoes. • We will cover Land Spout, Water Spout, and Super Cell Tornadoes. • You will be quizzed throughout this power point to test your knowledge of these different tornadoes!

  5. Basic Facts: CLICK TO PLAY If you have trouble with the video, try clicking here What is a tornado? • A tornado is a rotating column of air that is accompanied by a funnel shaped downward extension of a cloud. • Tornadoes are very violent and can cause severe damage. • About 1,000 tornadoes hit the United States each year.

  6. Where Are They Found? • Tornadoes can occur everywhere, but majority of them occur in the middle of the United States. • “Tornado Alley” is the area that has the strongest tornadoes. This includes SD, NE, KS, OK, TX, and CO.

  7. How Do Tornadoes Form? • Tornadoes usually begin in the form of a thunderstorm. • When two masses of different temperatures and humidity meet, they are likely to form. • If lower layers of the atmosphere are unstable, an upward movement of warmer air is formed. • The rising air within the updraft tilts the rotating air from horizontal to vertical. • As it rises, it begins to spiral and intensify.

  8. Most Common Tornadoes: • Land spout • Waterspout • Super Cell

  9. Land Spouts • This is a land-based tornado. • Most often occur in dry areas with high-based storms. • They are usually defined by swirling dust, may have a weak condensation funnel reaching up to the cloud base, and can be quite destructive.

  10. Land Spout Vocabulary: • Updraft: air currents full of warm, moist air • Funnel: the shape of the tornado • Vortex: the center of the tornado that acts like a vacuum

  11. Land Spout Review: • A Land Spout is a land based tornado • It extends from a cloud • Their centers are called vortexes On to the Quiz!

  12. QUIZ TIME! The Vortex is the _____ of the tornado which acts like a vaccum ? Updrift A Funnel B Center C

  13. OOPS! TRY AGAIN! BACK TO QUESTION

  14. GREAT JOB! GREAT WORK! Move onto the next lesson! BACK TO TORNADO PAGE

  15. Waterspout Tornadoes: -Intense columnar vortex that occurs over a body of water and is connected to a cumuliform cloud. -A Cumuliform cloud develops in a vertical direction

  16. There are 5 stages to the waterspout life cycle: -Formation of a dark spot on water surface -Spiral pattern on the water surface -Formation of a spray ring -Development of visible condensation funnel -Ultimately decay Life Cycle:

  17. Where do they occur? • These tornados occur mostly in the tropics, but can seasonally appear in the temperate areas throughout the world. • Common on the Great Lakes during late summer and early fall. • Approximately 160 waterspouts occur each year.

  18. Cause little damage. Occur mostly in the tropics Life cycle is in 5 stages REVIEW: ON TO QUIZ

  19. QUIZ TIME! Where do these tornados mostly occur? A United States B The Tropics C Australia

  20. OOPS! LET’S TAKE A CLOSER LOOK… BACK TOQUESTION

  21. GREAT JOB! Continue onto the next lesson! BACK TO TORNADO PAGE

  22. Super Cell Tornado

  23. Super Cell Vocab: • A super cell is a thunderstorm that is characterized by the presence of a mesocyclone • A mesocyclone is a deep, continuously-rotating updraft • An updraft is the vertical movement of air. It is one of two forces causes the air to move

  24. Characteristics Of Super Cells: Isolated from other thunderstorms They usually produce amounts of hail, strong rainfall, and strong winds. Develop two separate updrafts with opposing roatations

  25. Super Cell Review: • A super cell is a thunderstorm that is characterized by the presence of a mesocyclone • Super Cells form from strong winds and their updrafts • Super Cells are most commonly found in the Midwest, in tornado alley. ON TO QUIZ

  26. QUIZ TIME! This tornado is formed by a ________, a deep continuously rotating updraft. A Thunderstorm B Vortex C Mesocyclone

  27. OOPS! TRY AGAIN! BACK TOQUESTION

  28. GREAT JOB! Continue on to the next lesson! BACK TO TORNADO PAGE

  29. THE FUJITA SCALE

  30. How To Use The Fujita Scale? • The scale helps to decide the intensity of a tornado based on the amount of damage that has occurred. • In order to use it, just identify which damage was caused and look at its rating.

  31. Let’s Practice! What would the F-rating of a tornado that turns over trains and cars be?

  32. The Correct Answer Is F3!

  33. QUIZ TIME! The Fujita Scale helps to find the intensity of the tornado based off the ______? A Wind Speed B Amount of damage C Location where it occured

  34. OOPS! TRY AGAIN! BACK TO QUESTION

  35. GREAT JOB! Continue to the next question!

  36. QUIZ TIME! TRUE OR FALSE: The Fujita Scale is useful for predicting when tornados will occur ? TRUE FALSE

  37. OOPS! TRY AGAIN! BACK TO QUESTION

  38. GREAT JOB! You Answered Correctly! Continue On!

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