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Typhoons - PowerPoint PPT Presentation

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Typhoons. By Katherine Kosup. This picture is from NASA. It shows the paths of typhoons. Typhoons mostly happen in the west Pacific Ocean. Where do typhoons typically happen?. This chart shows the frequency of typhoons. As you can see October is the month that has the most typhoons.

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By Katherine Kosup

what elements are directly involved with typhoons

Ocean water

  • Humid, sticky air
  • Warm sea surface temperatures
  • Warm or cold air pushing up (either by getting pushed up a mountain , by cold air pushing warm air up, or by warm air pushing cold air up.)
What elements are directly involved with typhoons?
this is a typical occurrence of a typhoons

Day 1: “Thunderstorms develop over the sea.”

Day 2: “group to form a swirl of cloud.”

Day 4: “Winds grow; distinct center forms in cloud swirl.”

Day 7: “Eye forms; typhoon is at its most dangerous.”

Day 11: “Eye passes over land; typhoon starts to die.”

This is a typical occurrence of a typhoons.
what are the most extreme conditions for a typhoon

Winds: greater than 155 miles for hour.

  • Storm surge: 18 feet above normal.
  • Complete roof failure on many homes.
  • Small buildings blown over or blown away.
  • All shrubs, trees, and signs blown away.
  • Major damage to lower flours on all building.
What are the most extreme conditions for a typhoon?
what type of scale is use to classify typhoons

Saffir-Simpson Scale

Category One: Winds: 74-95 mph. Storm surge: 4-5 feet.

Category Two: Winds: 96-110 mph. Storm surge: 6-8 feet.

Category Three: Winds: 111-130 mph. Storm surge: 9-12 feet.

Category Four: Winds: 131-155 mph. Storm surge: 13-18 feet.

Category Five: Winds: over 156 mph. Storm surge: over 18 feet.

What type of scale is use to classify typhoons?
what are the after affects do typhoons have

Typhoons only have many after affects and one is storm surge. “Storm surge is when winds produces a rush of seawater that can devastate coastal areas.” “Storm surge is a local raise in sea level caused by a combination of wind and low atmospheric pressure.” “Storm surge can become more destructive on high tide.

  • Flooding can also be an after affect for typhoons. Many peoples homes where flooded after a typhoon. Flooding has destroyed many houses and most people in a typhoon only dye from the flooding.
  • The last after affect for typhoons is contaminated water sources. When salt water gets into the pluming it will contaminate the water. Contaminated water can be very bad because you could not use any thing that includes water. Water is a very important resource so when it gets contaminated it must get fixed soon!
What are the after affects do typhoons have?
what key terms are for typhoons

Tropical Depression - An organized system of clouds and thunderstorms with a defined surface circulation and maximum sustained winds of 38 MPH (33 knots) or less. Sustained winds are defined as one-minute average wind measured at about 33 ft (10 meters) above the surface.

  • Storm Surge - A dome of water pushed onshore by hurricane and tropical storm winds. Storm surges can reach 25 feet high and be 50–1000 miles wide.
  • Storm Tide - A combination of storm surge and the normal tide (i.e., a 15-foot storm surge combined with a 2-foot normal high tide over the mean sea level created a 17-foot storm tide).
What key terms are for typhoons?
other important facts

“The word typhoon comes from the Chinese term tai-fung, meaning great wind.

  • “In other part of the would typhoons are called hurricanes and tropical cyclones.
  • “Typhoons occur most frequently in the late summer.”
  • The most noticeable part of a typhoon is the eye located in the center.
Other important facts


  • http://www.vnbaolut.com/stormfaq.html
  • Cosgrove, Brian. Weather. New York: DK Publishing, 2007
  • Omen, Anne H. Weather. Washington D.C. National Geographic Society, 2005
  • "Storm surge." U*X*L Encyclopedia of Science. U*X*L, 2009. Gale Science In Context. Web. 8 Feb. 2012.
  • Amilasan, Al-shere T., et al. "Outbreak of leptospirosis after flood, the Philippines, 2009." Emerging Infectious Diseases 18.1 (2012): 91+. Gale Science In Context. Web. 9 Feb. 2012.
  • http://www.ready.gov/hurricanes
  • http://www.kidcyber.com.au/topics/floods.htm
  • http://www.smh.com.au/world/more-than-80-dead-as-typhoons-pound-east-asia-20090812-eh8a.html