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Module 10 Hurricanes & Hurricane Katrina Chapter 10
Low intensity tropical cyclones
tropical depressions and tropical storms
High intensity tropical cyclones
To be classified as a hurricane, a high intensity tropical cyclone must have at winds of at least _____mph
Hurricanes Generally form only where the sea temperature is at least _____degrees F
called, "The greatest storms on earth" because they are one of the strongest forces on the planet.
In North and Central America what are tropical cyclones called?
In the western north pacific like China and Japan, tropical cyclones are called ___________.
In the Indian ocean and Australia tropical cyclones are named_______.
Name the 3 different names for the same low pressure systems-convergent uplift with a great atmospheric pressure gradient.
All 3 low pressure systems have winds exceeding ___mph and can be ___to___miles wide
Of the 3 low pressure systems the height can get over _______feet tall.
The water must be at least ____feet deep for a hurricane to form.
What kind of atmosphere is required for latent heat to be released?
What is a low pressure disturbance that is needed for air to converge toward and rise to produce powerful thunderstorms
Easterly wave or tropical wave
A storm can not form 0-5 degrees north or south of the equator because the _______is not strong enough to cause the storm to organize and rotate.
What happens If a storm forms to far north or south of the equator?
It will not produce a hurricane because the water is too cold.
To what degrees of the equator do hurricanes mainly form?
5-20 degrees north of the south of the equator.
High pressure tends to have _____skies and ____winds
There must be little to no ______ _______in the Atlantic ocean, in order for a hurricane to form.
Most hurricanes form under large regions of ____ ______within the Atlantic ocean
The wind speeds of these storms are greatest within the ___ ___
What is the center of the hurricane called?
What are the organized intense thunderstorms called that move away from the eye wall?
Spiral Rain bands
What do spiral rain bands do?
Rotate around and toward the storms eye wall.
What is considered the calm region of the tropical storm?
The center, the Eye
how many stages does a hurricane go through?
3 reasons a storm will begin to die off
Waters too cold
Moves onto land and loses the moisture from below
Moves into a windy area that tears the storm apart