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Air Masses & Fronts

Air Masses & Fronts. Air Masses Air Mass: body of air that has the same temperature and amount of moisture throughout. Where the air mass forms determines its moisture and temperature. Turn to page 490 in your Textbook. Look at Figure 1. Look at title, legend, and map. Cold Air Masses:.

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Air Masses & Fronts

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  1. Air Masses & Fronts

  2. Air Masses Air Mass: body of air that has the same temperature and amount of moisture throughout. Where the air mass forms determines its moisture and temperature.

  3. Turn to page 490 in your Textbook. Look at Figure 1. Look at title, legend, and map.

  4. Cold Air Masses:

  5. Warm Air Masses:

  6. Cold Air Masses • Come from the poles • Bring cold weather • If come from land, bring cold, dry weather. • If come from over water, bring cold wet weather (snow, ice, rain)

  7. Warm Air Masses • Come from tropics/equator • Bring warm weather • If come from land, bring warm, dry weather. • If come from over water, bring warm wet weather

  8. Fronts Front: area where warm and cold air mass meet. * masses do not mix because they have different densities

  9. Types of fronts: warm front cold front occlouded front stationary front

  10. Cold Front *cold mass moves under warm mass, pushing warm mass up. * causes cold weather, thunderstorms, heavy rain & snow After cold front: cooler and dry weather Drawing for warm front:

  11. Warm Front * warm air moves over cold air * causes drizzly weather. After Warm Front: warm, clear weather. Drawing for warm front:

  12. Occlouded Front * when a warm air mass is caught between 2 cold air masses. * Produces cold temperatures, lots of rain & snow.

  13. Stationary Front *forms when a cold and warm air mass meet, but neither are strong enough to push the warm mass up. * stay separated * cause cloudy, wet weather Drawing:

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