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