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Stack #1539993

worddefination
air mass an air mass is an immense body of air that is characterized by similar temperature and amounts or moisture at any given altitude.
polar air mass cold air mass that forms high latitude towards Earth's pole
tropical air mass warm air that forms in low latitudes
continental polar cold,dry
maritime tropical warm, heavy moisture, and usually unstable. heavy precipitation
continental tropical hot and dry air mass. begins in southwest united states and mexico when it move, very hot and drought like conditions in the great plains
maritime polar cold and high humidity. influence weather of northeast united states
continental forms over land, dry
air masses are classified by temperature and surface over which they form land or water
front boundary that separates2air masses
warm front forms when air moves into an area formerly covered by cooler air. light to moderate precipitation for extended time.
cold front forms when cold, dense air moves into a region occupied by warmer air. heavy precipitation and gusty winds; temperature decrease
stationary front position of the front does not move. gentle to moderate precipitation
occluded front active cold front overtakes a warm front. light precipitation for several days
middle latitude cyclones large centers of low pressure that generally travels form west to east cause stormy weather
tornado violent windstorm that take the form of a rotating column of air called a vortex. the center of a tornado is characterized by its low pressure
Created by: ruthlafleur