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								What is a front?									 
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								A front is a collision of two or more airmasses									 
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								What are the clouds and weather associated with cold fronts?									 
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								Cumulonimbus clouds and severe weather are associated with cold fronts.									 
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								During a cold front, what happens between the warm and cold air masses?									 
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								The dry, cold air mass advances on the warm and moist air mass, wedging under it and forcing the wairm air up.									 
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								What are the clouds and weather associated with warm fronts?									 
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								Stratoform clouds and light precipitation are associated with warm fronts.									 
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								During a warm fronts, what happens between the cold and warm air masses?									 
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								The moist, warm air advances on the cold air mass, forcing it to go up since it is less dense.									 
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								Are cold fronts or warm fronts faster?									 
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								Cold fronts are faster.									 
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								Stationary fronts stay around for how long and what precipitation do they bring with them?									 
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								They stay around for many days and bring light precipitation.									 
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								Occluded fronts:									 
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								Are rare but bring extreme severe weather.									 
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								Storms typically pop up along:									 
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								Dry lines.									 
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								What is an air mass and what conditions does it take on?									 
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								An air mass is a large body of air that has a relatively equal temperature and moisture level through out. it takes on the conditions of the surface below its source region.									 
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								The maritime tropical air mass:									 
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								Brings in warm and moist air from the gulf of mexico									 
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								The maritime polar air mass:									 
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								Brings in cold and moist air from the northwest.									 
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								The continental tropical air mass:									 
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								Brings in warm and dry air from the southwest.									 
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								The continental polar air mass:									 
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								Brings in cold and dry air from canada and is responsible for most of the cold weather that the US has.									 
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								Which way do mid-latitude cyclones rotate in the northern hemisphere and what kind of pressure do they rotate around?									 
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								They rotate counterclockwise around a low.									 
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