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Ingrid Dunn

on 4 April 2017

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Transcript of Storms

A storm is a violent disturbance in the atmosphere
4 major types of storms:
Winter Storms

A meteorologist is a scientist who studies weather and tries to predict it

A thunderstorm is a small storm often accompanied by heavy precipitation and frequent thunder and lightning.
Form in large cumulonimbus clouds (also called thunderheads) on hot, humid afternoons
Warm, humid air rises rapidly and the air cools, forming dense thunderhead clouds
Heavy rain falls, sometimes along with hail
Within the thunderhead cloud there are strong updrafts and downdrafts

A tornado is a rapidly whirling, funnel-shaped cloud that reaches down from a storm cloud to touch Earth’s surface
Warm, moist air flows in at the bottom of a cumulonimbus cloud and moves upward
A low pressure area forms inside the cloud
Warm air rotates as it meets winds blowing in different directions at different altitudes

A hurricane is a tropical cyclone that has winds of 119 km/h or higher
Hurricanes form in the Atlantic, Pacific, and Indian Oceans
In the western Pacific Ocean, hurricanes are called typhoons
A hurricane begins over warm ocean water as a low-pressure area, or tropical disturbance.
A hurricane draws its energy from the warm, humid air at the ocean’s surface
As the air rises and forms clouds, more air is drawn into the system
Inside the storm are bands of very high winds and heavy rains
Winds spiral inward toward the area of lowest pressure at the center

Winter Storms...
All year round, most precipitation begins in clouds as snow
A large amount of humid air that cools below 0°C can produce a winter storm
Lake Effect Snow-areas east of the Great Lakes get a LOT of snow WHY?

A tornado watch is an announcement that tornadoes are possible in your area. Stay tuned to the radio or television news.
A tornado warning is an announcement that a tornado has been sighted. Take shelter immediately!
The safest place to be during a tornado is in a storm shelter or the basement of a well-built building
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