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Understanding Air Masses and Fronts: Characteristics and Weather Patterns

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This section explains air masses, large bodies of air sharing similar temperature and moisture. It discusses their source regions, classified as maritime or continental, and their temperature characteristics: polar and tropical. The text details two-letter symbols used for air masses, including cP, mT, mP, and cT, indicating their origin and properties. It describes various fronts—cold, warm, occluded, and stationary—explaining how they form and influence weather patterns, including precipitation types associated with each front.

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Understanding Air Masses and Fronts: Characteristics and Weather Patterns

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  1. WEATHER AND CLIMATE Chapter 2 UNDERSTANDING WEATHER

  2. Section 2 Air Masses and Fronts

  3. a large body of air that has similar temperature and moisture throughout air mass

  4. moisture An air mass gets _______ and temperature characteristics from the area over which it forms. These areas are called ______ ______. source regions

  5. the two characteristics that are represented with a two-letter symbol on weather maps moisture and temperature

  6. source region where air mass forms over water; wet maritime

  7. source region where air mass forms over land; dry continental

  8. source region where air mass forms over the north or south pole; cold Polar

  9. source region where air mass develops over the Tropics; warm Tropical

  10. symbol used to indicate the continental source region c

  11. symbol used to indicate the maritime source region m

  12. symbol used to indicate the tropical source region T

  13. symbol used to indicate the polar source region P

  14. the two-letter symbol used to indicate a cold air mass that formed over land ? cP

  15. the two-letter symbol used to indicate a warm air mass that formed over water mT ? ? ?

  16. the two-letter symbol used to indicate a cold air mass that formed over water ? mP ?

  17. the two-letter symbol used to indicate a warm air mass that formed over land cT ?

  18. the boundary that forms between two different air masses front

  19. a front where cold air meets and displaces a warm air mass cold front

  20. rain snow Cold fronts can produce _____________, heavy _____, or ______. They are usually followed by ______ weather. cooler thunderstorms

  21. a front where a warm air mass over-rides a cold air mass warm front

  22. drizzly warm Warm fronts can produce ______ precipitation. They are usually followed by ______ weather.

  23. a front where a cold air mass overtakes a warm air mass and then meets a cold air mass, causing large amounts of precipitation occluded front

  24. precipitation cold Occluded fronts can produce heavy ____________. They are usually followed by _____ weather.

  25. front where a cold air mass meets a warm air mass BUT little horizontal movement occurs stationary front

  26. drizzly Stationary fronts can produce ______ precipitation. They are usually followed by ______ weather. warm

  27. Fun and Games • The Magic School Bus Kicks Up a Storm • Bill Nye on Storms • Warm Front in Action • Warm and Cold Front Animation • Compare Fronts • KidsGeo.com Air Masses Check out the topics in the chapter on Air Mass • Vocabulary Games

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