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18 Cards in this Set
- Front
- Back
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Air pressure
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The measure of the force with which air molecules push on a surface
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Barometer
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an instrument that measures air pressure
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wind
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the movement of air from an area of high pressure to an area of low pressure
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anemometer
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an instrument that measures air pressure
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cold front
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caused when a cold air mass overtakes a warm air mass and pushes warm air upward
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Cumulonimbus cloud
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Type of cumulus cloud that produces thunder storms
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thunderstorm
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small, intense weather system that produces strong winds, heavy rain, thunder and lightning
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lightning
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large electrical discharge that occurs between two oppositely charged surfaces - can be cloud to cloud, cloud to ground, ground to cloud
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tornado
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a small rotating column of air
formed within cumulonimbus clouds that has high wind speeds, low central pressure and touches the ground |
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funnel cloud
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a small rotating column of air formed withing cumulonimbus clouds, but has not touched the ground
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Fujita scale (F-Scale)
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rates tornado intensity based on damage inflicted on man-made structures and vegetation.
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hurricane
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a large rotating tropical weather system that forms over water and has windspeeds of at least 74 km/hr (same as 119 miles/hr
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latitude
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lines that run east to west on a map or globe and measure distance in degrees north or south of the equator
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longitude
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lines that run north to south on a map or globe and measure distances in degrees east or west of the Prime Meridian
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eye
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a core of warm, relatively calm air with low pressure and light winds found at the center of a hurricane
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eye wall
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a group of cumulonimbus clouds that surround the eye of a hurricane and produce heavy winds and forceful rains
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storm surge
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a wall of water that builds up under a hurricane that crashes on to shore and causes most damage
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Saffir-Simpson Scale
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a 5-point scale used to indicate the strength of a hurricane based on wind speed, storm surge, barometric pressure, and predicted damage
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