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16 Cards in this Set

  • Front
  • Back
Air Mass
A huge body of air that has similar temperature humidity and air pressure throughout.
Tropical
A warm air mass that forms in the tropics and has low air pressure.
Polar
A cold air mass that forms north of 50 degrees north latitude or south of 50 degrees south latitude and has high air pressure.
Maritime
A humid air mass that forms over oceans.
Continental
A dry air mass that forms over land.
Front
The boundary where unlike air masses meet but do not mix.
Occluded
Cut off, as in front where warm air mass is caught between two cooler air masses.
Cyclone
A swirling center of low air pressure.
Anticyclone
A high pressure center of dry air.
Storm
A violent disturbance in the atmosphere.
Thunderstorm
A small storm often accompanied by heavy precipitation and frequent thunder and lightning.
Lightning
A sudden spark, or energy discharge, caused when electrical surges jump between parts of a cloud, between nearby clouds, or between a cloud and the ground.
Tornado
A rapidly whirling, funnel-shaped cloud that reaches down from a storm cloud to touch Earth's surface.
Hurricane
A tropical storm that has winds of about 119 kilometers per hour or higher.
Storm Surge
A "dome" of water that sweeps across the coast where a hurricane lands.
Evacuate
To move away from an area temporarily to avoid hurricane conditions.