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science ch11

vocab words

air mass large body of air that has the same characteristice of tempeture and moisture content as the part of earths surface over which it formed.
blizzard winter storm that lasts at least three hours with temperatures of -12degrees C or below, poor visibility and winds of atleast 51km/h
dew point temperatures 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 temperatures, density or moisture;can be cold, warm, occluded, and stationary
humidity amount of water vapor held in the air
hurricane large, severe storms that forms over tropical oceans, has winds atleast 120/km/h, and loses power when it reaches land
isobar is a line drawn to connect points of equal atmospheric pressure
isotherm a line that connects points of equal temperature
meteorologist studies weather and uses information from doppler radar, weather satellites computers and other instruments to make weather maps and provide forcasts
precipitation water falling from clouds- including rain, snow, sleet, and hail whose form is determined by air temperature
relative humidity is the measure of the amount of water vapor present in the air compared to the amount needed for saturation at a specific temperature
station model indicates weather conditions at a specific location, using a combination of symbols on a map
weather state of the atmosphere at a specific time and place, determined by factors including air pressure, amount of moisture in the air temperature and wind
tornado violent whirling wind that crosses land in a narrow path and can result from wind shears inside a thunderhead
Created by: leitner6