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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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Summary of the lesson

Summary of the Lesson

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

Beyond the book

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.

Thank you

Thank you

From Aayush, arVIND, AND aARNAV

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