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Atlantic Hurricanes. By: Nichole Quihuis Grade 7. A Hurricane is…. A rotating cyclone of thunder storms with a defined central eye Sustained wind speeds of at least 74 mph They form generally in the tropic regions Fueled by warm sea surface temperatures and low atmospheric pressure.

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Atlantic hurricanes

Atlantic Hurricanes

By: Nichole Quihuis

Grade 7


A hurricane is
A Hurricane is…

  • A rotating cyclone of thunder

    storms with a defined central eye

  • Sustained wind speeds of at least 74 mph

  • They form generally in the tropic regions

  • Fueled by warm sea surface temperatures and low atmospheric pressure


Formation of a hurricane
Formation of a Hurricane

  • Begins with low pressure off the coast of Africa

  • Strong westerly winds

  • Strong evaporation due to warm sea surface temperatures

  • Initial cluster of thunderstorms (Tropical Depression)

  • Thunderstorms form more organized circular bands around the central eye


Hurricane season
Hurricane Season

  • Summer months into early fall (June-September)

  • Possible winter hurricanes if conditions are right

  • Increased sea surface temperatures

  • Stronger evaporation

  • Associated with a defined shift in westerly winds in the Northern Hemisphere


Hurricane strength
Hurricane Strength

  • Categories

    • 5 Categories with 1 being the weakest

  • Category 1 is 74-95 mph

  • Category 2 is 96-110 mph

  • Category 3 is 111-130 mph

  • Category 4 is 131-155 mph

  • Category 5 is 156 mph or greater


Fun fact
FUN FACT!!

  • The total amount of energy released by a hurricane (rainfall, heat radiation, and wind) is equivalent to 200 times the world-wide electrical generating capacity!!!!!!

  • WOW!!!!!!!!!!!!!


Damage effects
Damage Effects

  • Most of the damage comes from

    storm surge

  • Wind

  • Flooding from rainfall

  • A lot of communication infrastructure damage


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