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Transcript of Typhoons
By: Aliya Patel
What are Typhoons?
Typhoons are classified as a type of cyclone, a low-pressure storm with winds swirling around the center.
They are strong and destructive storms.
What are the characteristics?
Some typical traits of typhoons are their powerful swirling winds
That they can travel very fast
Can cause serious destruction
What are hurricanes
The differences between typhoons and hurricanes are that they have different names such as:
northwest Pacific region- typhoon
North and Central America-hurricane
larger and faster- typhoons
more occur per year- typhoons
How do they form?
Typhoon form when they start off as tropical thunderstorms that pick up moisture from the oceans
the air transforms the moisture into heat and evaporation increases into the center of the storm
all the air and heat flow directly to the eye and the wind speed increases as well as the water's movement causing it to rain and flood
Where do they occur and when?
Typhoons occur in the tropical waters of the Earth including the Pacific or Indian Ocean near the Eastern coast of Asia
Usually year-round; specifically late summer like May-November
What is the cause?
It starts similarly like a hurricane, as a tropical disturbance then a tropical depression and finally it becomes a cyclone and finally transforms into a typhoon.
How do you prepare?
Listen to warning signs
Pack a flashlight, first aid kit, clothes/blankets, food, water
Store in an easily accessible place
Prepare based on weather
Always be on the lookout
Keep family safe but you come first
What are the signs?
What happens during a typhoon?
Warm water heats the air causing it to rise quickly
Then it gets pushed aside as it cools.
This pushing causes the clouds to spin.
These clouds spin fast enough to create a wind
As the precipitation falls from clouds, it falls at an angle from the wind
It falls heavily as the warm water energizes the storm
What does a typhoon seem like?
It seems similarly like a hurricane.
Slick surfaces from precipitation
Rubble and debris everywhere
Flooding and storm surge threaten your life
Structures and poles crash
Gusty winds that blow everything down
Chaos to evacuate or get to safety
How do you keep safe?
To keep safe during or after a typhoon:
try to keep with a group
seek shelter in public recreation areas
get enough sleep
watch for dangerous animals
avoid electric wires and poles
try aiming for help if you're stranded
What is the damage resulting?
The waters have flooded and drained leaving the area streaked wet
Winds cause houses, trees and electric lines to topple and crash. They fall and cause more debris to an all ready flooded land. Property damage is the most important destruction of a typhoon.
The injuries and death tolls are part of the aftereffect.
Diseases spread faster in close quarters so be clean, especially when it comes to water
What are the major storms?
The largest storms were:
Dot (140 mph and Vietnam in 1985)
Flo (140 mph and Japan in 1990)
Yuri (140mph and Guam in 1991)
Megi (145 mph and China in 2010)
Haiyan (145 mph and Phillipines in 2013)
What is Super Typhoon Haiyan?
The strongest typhoon in the world history hit the Philippines just recently. It was the Super Typhoon Haiyan, or Yolanda by locals. It rated 21 on the typhoon intensity chart and caused so much destruction and attention to be named, dishonorably the most powerful typhoon to hit the world.
What is the importance of Yolanda?
As of Jan 2014, bodies are still being found
The strongest typhoon in history
6,230 fatalities and 1,785 unknown
At the start of Nov 2013
How do meteorologists determine these storms?
They use satellite radars and other weather instruments such as barometers and anemometers to measure the air pressure and wind
Using their knowledge of signals of approaching storms they can determine if any storms have a slight possibility of hitting.
Scientists would look into it using satellites and radars to track the storm and learn more about the track of the typhoon.
What type of precipitation can you feel?
They would feel a lot of rain! . Fog and haze would appear and snow might occur if it is cold enough. The clouds are going to be gray and become a thick, growing, black cumulonimbus cloud producing heavy showers and sleet. It will be very cold with the gusty winds and rainy weather.
What types of typhoons are there?
The wind speed of the following typhoons are:
Strong: 111-130 mi/hr
Intense: 131- 149 mi/hr
Super: 150-155 mi/hr
Violent: 156+ mi/hr
How do you categorize typhoons?
The intensity of typhoons are determined by their wind speed, precipitation amount, damage, deceased poll and the flooding and other dangers associated with the deadly storm.
What are my resources?
How do you scale typhoons?
Typhoons are scaled on the same intensity scale as hurricanes- the Saffir-Simpson Scale. This scale measures the strength of tropical storms based on wind speed. Then scientists classify a typhoon based on the categories from 1-5.
What does it look like?
What does it it feel like?
What are the effects?
What does it seem like?
This is an image of Typhoon Haiyan making landfall and its path of destruction as it passes through Hong Kong, China and the Philippines.
The aftermath of typhoons is mainly property damage from fallen structures and debris scattered everywhere. This pile of rubble is a town in the Philippines that got crushed by Typhoon Haiyan and the building that is defeated by water is an apartment complex.
This is Typhoon Haiyan moving towards the Philippines, shown on a radar.
The biggest signal of an approaching typhoon is flooding. Levees break from the force, the water current is increased and the water level increases as well.
Footage of Typhoon Haiyan flooding.
Storm surge is when water rushes in as the wind and atmospheric pressure changes. The storm surge is intense flooding and is when most of the buildings fall.