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18 Cards in this Set
- Front
- Back
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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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Tropical
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Air masses form in the tropics and have low air pressure.
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Polar
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Air masses form north of 50° north latitude and south of 50° south latitude.
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Maritime
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air masses form over oceans. Water evaporates from the oceans, so the air can become very humid.
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Continental
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air masses form over land. Continental air masses have less exposure to large amounts of moisture from bodies of water.
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front
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The boundary where the air masses meet.
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occluded
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The warm air mass is cut off from the ground.
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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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Are high-pressure centers 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 electrical discharge, as these charges jump between parts of a cloud, between nearby clouds, or between a cloud and the ground.
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tornando
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a rapidly whirling, funnel-shaped cloud that reaches down from a storm cloud to touch Earth’s surface.
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hurricane
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a tropical cyclone that has winds of 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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meteorologist
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are scientists who study the causes of weather and try to predict it.
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isobar
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are lines joining places on the map that have the same air pressure.
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isotherms
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are lines joining places that have the same temperature.
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