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STORMS. BY ARVIND, AAYUSH, AND AARNAV. Summary of the Lesson. THE FORMATION OF Thunder storm. warm moist air rises rapidly upward in the cumulus stage. Eventually the cloud builds into a tall cumulonimbus cloud-thunderhead

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the formation of thunder storm
THE FORMATION OF Thunder storm
  • warm moist air rises rapidly upward in the cumulus stage.
  • Eventually the cloud builds into a tall cumulonimbus cloud-thunderhead
  • heavy rains, lightning, and strong winds are associated with the mature stage
formation of floods
Formation of floods
  • One of the most common and costly dangers associated with severe weather is a flood.
  • A flood forms when a river overflows its banks.
  • heavy rainfall also causes floods.
  • these disasters occur next to mountain peaks or water sources.
how droughts form
How droughts form
  • the opposite extreme of a flood is a drought
  • A drought is a long period of below normal rainfall.
  • droughts occur with high pressure system.
how blizzards form
How blizzards form
  • if you live in a cold climate you might know what blizzards are.
  • a blizzard is a severe snowstorm with strong winds and very low temperatures.
  • like many types of severe storms blizzards are also associated with high pressure systems.
  • most blizzards in California occur in the sierra Nevada
  • hurricanes are the most powerful storms on earth.
  • as warm moist air continues to rise pressure in the center of the system falls steadily as the storm strengthens.
  • this severe storm reaches winds of 74 miles per hour or more.
  • these large rotating storms can grow in size from 100 miles to 930 miles in diameter.
massive tornados
Massive tornados
  • tornados are concentrated, twisting columns of air. they hang from a special kind rotating storms thunderstorms called supercells.
  • tornados contain the fastest winds on earth.
  • the most powerful reach 300 miles per hour.
  • in april 1974 the united states had the biggest outbreak in history.
mudslides landslides
  • Mudslides/landslides occur when heavy rainfall falls on steep slopes
  • This causes the soil to become wet and loose. The trees can’t hold the soil which causes the soil to go downward
  • In La Conchita, California a mudslide occurred and destroyed 15 homes and killed 10 people
beyond the book predicting weather
Beyond The book: Predicting Weather
  • A thermometer measures air temperature in Fahrenheit or Celsius
  • A rain gauge measures the amount of precipitation that has fallen in an area.
  • The cups on an anemometer catch moving air, causing the instrument to spin in the wind.
how to respond to natural disasters
How to Respond to Natural Disasters
  • When a tornadoes form always go to the lowest point in your house such as your basement.
  • When an earthquake occurs duck under a strong table and protect your neck by putting your hands around it.