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15 Cards in this Set

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Doppler radar
a type of radar that calculates distance and shows direction of movement
Percent
A ratio that compares a part of a whole using the number 100
meteorologist
scientist who studies weather
forecast
a predication of what the weather will be like in the future
air pressure
the force of air against earth's surface
humidity
water vapor in the air
relative humidity
measurement that compares the amount of water vapor in the air with the amount the air can hold at a certain temperature
dew point
the temperature at which the volume of air cannot hold any more water vapor
barometer
an instrument used to measure air pressure
anemometer
an instrument used to measure wind speed
psychrometer
an instrument used to measure relative humidity
air mass
a large body of air having similar properties or weather conditions
front
the boundary between warm and cold air masses
tornado
a violent funnel shaped cloud with extremely strong winds
hurricane
a large tropical storm that forms over warm oceans and whose winds have a velocity of at least 110 kilometers per hour.