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15 Cards in this Set
- Front
- Back
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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warm, air masses form in the tropics and have low air pressure.
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polar
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cold, air masses form north of 50° north latitude and south of 50° south latitude. Polar air masses have high air pressure.
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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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is a small storm often accompanied by heavy precipitation and frequent thunder and lightning.
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Lightning
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is 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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Tornado
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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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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 the hurricane lands.
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