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Storms

Storms. Brought to you by Weather Girl Jessica Good. Types of Storms. Thunder and Lightning Tornadoes Waterspouts Hurricanes. Thunderstorm and Lightning Storms. Develop in warm, moist air on the leading edge of a cold front.

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Storms

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  1. Storms Brought to you by Weather Girl Jessica Good

  2. Types of Storms • Thunder and Lightning • Tornadoes • Waterspouts • Hurricanes

  3. Thunderstorm and Lightning Storms • Develop in warm, moist air on the leading edge of a cold front. • Frozen raindrops collide in a thundercloud, creating electrical charges. • Lightning forms from the buildup of electrons in a cloud that are attracted to positive charges in other clouds or on the ground.

  4. Tornadoes • A tornado is a powerful column of winds spiraling around a center of low atmospheric pressure. • They can be identified by the large black funnel coming from a storm cloud. • As winds spiral upward, an internal vacuum is created and sucks up everything in its path. • They rotate counter-clockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. • They can form and vanish very quickly. • Tornadoes develop as a result of a change in wind direction and increasing speed. • http://www.youtube.com/watch?v=MjjwPQRVbWk

  5. Waterspouts • Waterspouts are weak tornadoes that form over warm water. • Often found in the Gulf of Mexico or off the coast of the Atlantic side of the Florida coast.

  6. Hurricanes • Hurricanes are huge storms with winds that rotate counter-clockwise in the Northern Hemisphere direction and form an eye in the center. • The size of the storm can measure up to 600 miles across and have strong winds spiraling inward and upward at speeds of 75-200mph. • They typically last for over a week, moving 10-20 mph over the open ocean. • The eye in the center is a calm part of the storm with light winds and fair weather; while the bands carry heavy rain and strong winds that when they pass over land, can damage buildings, trees and property. • Hurricanes only form over really warm ocean water.

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