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Understanding Air Masses and Fronts in Weather Systems

Learn about the 4 major types of air masses - continental Polar, continental Tropical, maritime Polar, and maritime Tropical - and how they interact at fronts. Discover the characteristics and weather changes associated with cold fronts, warm fronts, stationary fronts, and occluded fronts.

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Understanding Air Masses and Fronts in Weather Systems

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  1. Air Masses and Fronts

  2. Air Mass –a large body of air with uniform temperature and humidity characteristics

  3. 4 Major types of Air Masses

  4. continental PolarcPDry and Cold

  5. continental TropicalcTDry and Hot

  6. maritime PolarmPWet and Cold

  7. maritime TropicalmTWet and Warm

  8. cA cP cT mT mT mT mP mP

  9. Front – the boundary between two air masses they occur when two air masses collide

  10. Cold Frontsfrom when a cold air mass moves into a warm air mass

  11. When cold air runs into warm air the WARM AIR IS FORCED TO RISE.

  12. Cold Front Weather Changes

  13. Temperaturesharp decrease

  14. Windchange from SW to the NW

  15. Clouds and ppt.Cumulonimbus and heavy rain

  16. Warm Fronts - form when warm air is moving into cold air

  17. When warm air catches cold air the WARM AIR MUST RISE OVER THE COLD AIR

  18. Warm FrontWeather Changes

  19. Temperaturewill rise

  20. Pressurewill decrease

  21. The pptwill be light and steady

  22. Wind Directionwill shift from the E to the SE

  23. Stationary Front- boundary between two stagnant air masses

  24. Occluded Front- frontal boundary where a cold front catches up to a warm front

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