Tornado

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  • A thought that I would like to share is that I think my dog kind of likes me, but also kind of dislikes me. This is very concerning because, traditionally dogs provide their owners with unconditional love. My dog seems to lack this. Maybe I'm overthinking this, but it bothers me very deeply. Also, I thought about a horse with a human head again.
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  • Most tornadoes form from thunderstorms.It needs warm, moist air from one side and cool, dry air from an opposite side.When these two air masses meet, they create instability in the atmosphere.A change in wind direction and an increase in wind speed with increasing height creates an invisible, horizontal spinning effect in the lower atmosphere.
  • Most tornadoes form from thunderstorms.It needs warm, moist air from one side and cool, dry air from an opposite side.When these two air masses meet, they create instability in the atmosphere.A change in wind direction and an increase in wind speed with increasing height creates an invisible, horizontal spinning effect in the lower atmosphere.
  • Most tornadoes form from thunderstorms.It needs warm, moist air from one side and cool, dry air from an opposite side.When these two air masses meet, they create instability in the atmosphere.A change in wind direction and an increase in wind speed with increasing height creates an invisible, horizontal spinning effect in the lower atmosphere.
  • http://news.bbc.co.uk/nol/shared/spl/hi/sci_nat/06/tornado/swf/tornado_guide2416.swf
  • Tornado

    1. 1. Tornados<br />
    2. 2. Tornados<br /><ul><li>Outline:
    3. 3. What is Tornado.
    4. 4. Characteristics.
    5. 5. Tornado Formation.
    6. 6. Types of Tornados.
    7. 7. Tornado Forecasting.</li></ul>Weather Service Alerts<br /><ul><li>Effects of Tornados.</li></li></ul><li>What is a tornado?<br />A localized and violently destructive column of air occurring over land, characterized by a funnel-shaped cloud extending toward the ground.<br />
    8. 8. What is a tornado?<br />
    9. 9. Characteristics<br /><ul><li>Tornados come in many shapes and sizes.
    10. 10. Typically in the form of funnel shape.
    11. 11. Most Tornados have wind speeds between (64km/h and 177km/h), and stretch more than 75m across.
    12. 12. They could travel a few miles before dissipating.</li></li></ul><li>Characteristics<br /><ul><li>A typical tornado travels at around 10-20 miles per hour.
    13. 13. Most tornadoes occur during the months of May, June, July and August in the late afternoon and evenings.
    14. 14. Usually occurs in:
    15. 15. Tornado Alley Region in US.
    16. 16. North America.
    17. 17. South Africa.
    18. 18. South-Central and eastern Asia.
    19. 19. Australia.
    20. 20. New Zealand.
    21. 21. Philippines.</li></li></ul><li>Tornado Formation<br /><ul><li>Warm moist air collides with a cold dry one.
    22. 22. As warm air rises within the storm clouds, cooler air rushes in from the sides.
    23. 23. A whirling wind is created that draws surrounding air toward its center.
    24. 24. An area of strong rotation develops, 2 to 6 miles wide.
    25. 25. A dark, low cloud base or “cloud wall” appears.
    26. 26. As rotation becomes even stronger, a funnel develops.</li></li></ul><li>Tornado Formation<br />
    27. 27. Tornado Formation<br />
    28. 28. Types of Tornado<br /><ul><li>Supercell Tornadoes.</li></ul> The biggest and the strongest. They spin under a thunderstorm and their winds can get up to 300 mph. <br /><ul><li>Landspout.</li></ul> A narrow vortex that forms over land under several columns of cumulus clouds. Winds can reach up to 140 mph and only last for several minutes.<br />
    29. 29. Types of Tornado<br /><ul><li>Firewhirls.</li></ul> Can occur near any intense surface heat source, and near intense wildfires. <br /><ul><li>Gustnado.</li></ul> a small vertical swirl associated with a gust front or downburst. that are not connected with a cloud base.<br />
    30. 30. Types of Tornado<br /><ul><li>Waterspout.</li></ul> a column of spinning wind that forms downward from a cumulus cloud down to any body of water.<br /><ul><li>Dust Devils.</li></ul> They are swirls that go up and fizzle out in the clean air, and they are not connected to the clouds while spinning.<br />
    31. 31. Tornado Forecasting<br /><ul><li>A tornado’s size, strength, direction, and duration cannot be predicted.
    32. 32. Size and strength of a tornado is not determined until after damage has occurred.
    33. 33. Tornado direction cannot be predicted.
    34. 34. Impossible to predict exact location of a tornado (so far…)</li></li></ul><li>Tornado Forecasting<br /><ul><li>The Fujita-Pearson scale provides a means of categorizing tornadoes. (It is not necessarily an accurate indicator of damage.)</li></ul>Doppler Radar<br />
    35. 35. Fujita-Pearson scale<br />
    36. 36. Weather Service Alerts<br /><ul><li>Tornado Watch : means that weather conditions exist where tornadoes are possible.
    37. 37. Tornado Warning : means that a tornado has been spotted, or that Doppler radar indicates a thunderstorm rotation which can spawn a tornado.</li></li></ul><li>Effects of Tornado<br /><ul><li>Tornadoes can make People die.
    38. 38. At each year 5000 average number of people were died.
    39. 39. The deadliest tornado in world history was the Daultipur-Salturia Tornado in Bangladesh on April 26, 1989, which killed approximately 1300 people.</li></li></ul><li>Thanks For your Time!<br />

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