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Chapter 7 Weather

Fourth Grade Hurricanes and Tornadoes

Hurricane A storm that has wind speeds of at least 119 kilometers per hour.
Storm Surge The water that a hurricane can push onto land.
Tropican Depression A low pressure air masss with storms that have winds that begin to spin over warm ocean water.
A hurricane keeps the name it was given when it becomes a tropical storm
A rapidly spinning colum of air that comes out of a thunderstorm and touches the ground is a tornado
Particles of air can spin in a spiral pattern called a vortex