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Hurricanes

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How Hurricanes are Measured. Herbert Saffir created the 5 category scale for ... Hurricanes usually form in the tropical zones north and south of the equator. ... – PowerPoint PPT presentation

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Title: Hurricanes


1
Hurricanes
  • By Quint

2
Facts about Hurricanes
  • Hurricanes can give winds from 75mph to 200mph.
  • They get up to 600 miles across

3
How Hurricanes are Measured
  • Herbert Saffir created the 5 category scale for
    measuring the intensity of hurricanes.
  • Category 1 trees and unanchored mobile homes are
    damaged
  • Category 2 winds 96-110mph.Roofing material,
    door, and window damage of buildings.
  • Category 3 winds 111-130mph. Curtain wall
    failures and
  • mobile home damage.
  • Category 4 winds 131-155mph. More curtain wall
    failures, roof failure, and complete destruction
    of mobile homes.
  • Category 5 the complete failure of roofs and
    some structures.

4
More Facts About Hurricanes
           
  • They move 5-10 mph.
  • The eye is the calmest part of the hurricane.
  • Hurricanes are just huge storms.

5
More facts
  • Hurricanes rotate counter clock wise.
  • Evaporation from seawater increases its power.
  • Hurricanes usually form in the tropical zones
    north and south of the equator.
  • A storm becomes a hurricane when its winds reach
    75 mph.
  • On average, there are around 45 hurricanes each
    year.

6
In Memory
  • Herbert Saffir was the creator of the 5 category
    scale for measuring the intensity of hurricanes.
    He passed away on November 23, 2007, from
    complications of surgery. He was 90 years old.
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