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Weather

Vocabulary

TermDefinition
Air Mass Large body of air that has the same characteristics of tempature and moisture content as the part of Earth's surface over which it formed
Blizzard Winter storm that lasts at least three hours with tempatures of -12 degrees C or below, poor visibility, and winds of at least 51 km/h
Dew Point Tempature at which air is saturated and condensation forms
Fog A stratus cloud that forms when air is cooled to its dew point near the ground
Front Boundary between two air masses with different tempatures, density, or moisture; can be cold,warm,occluded, and stationary
Isobar Lines drawn on a weather map that connect points having equal atmospheric pressure; also indicate the location of high-pressure and low-pressure areas and can show wind speed
Isotherm Lines drawn on a weather map that connects points having equal tempature
Humidity Amount of water vapor held in the air
Hurricane Large,severe storm that forms over tropical oceans,has winds of at least 120 km/h, and loses power when it reaches land.
Meteorologist Studies weather and uses information from Doppler radar,weather satellites,computers and other instruments to make weather maps and provide forecasts
Precipitation Water falling from clouds-including rain,snow,sleet,and hail-whose form is determined by air temperature
Relative Humidity A measure of the amount of water present in the air compared with the amount needed for saturation at a given temperature;can range from 0 percent to 100 percent
Station Model Indicates weather conditions at a specific location,using a combinations of symbols on a map
Tornado Violent,whirling wind that crosses land in a narrow path and can result from wind shears inside a thunderhead
Weather State of the at a specific time and place,determined by factors including air pressure,amount of moisture in the air,temperature and wind
Created by: craftsmaster1117
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