period 3 group 4
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period 3 group 4

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period 3 group 4 period 3 group 4 Presentation Transcript

  • Fronts
    • A front is a boundary between two air masses of different density, moisture, or temperature.
    • And there is four different kind of them and they are Cold front, Warm front, Stationary and Occluded front.
    • And they are represent by many curve lines .
  • Here Are The Differ Kind Of Fronts And There Symbol
  • Cold Front
      • A Cold front is the cold air cuts underneath the warm air and forces the warm air up a much steeper angle. A cold fonts the air is cooled quickly and forms a narrow band of thick cumulonimbus clouds.
      • Then this produce a large thunderstorm or even a tornadoes .
      • And cold fronts are a map are shown by a blue line with triangles.
  •  
  • Warm Front
    • A warm front occurs when lighter, warmer air advance over heavier, colder air.
    • Warm fronts air shown on a weather map with red line with red semicircles .
    • Like This:
  •  
  • Occluded Fronts
    • This front includes 3 types of air masses of differ temperature- colder air, warm air, and cooler air.
    • This may occur when cold air mass moves toward cool air with the warm between the two.
    • The colder air forces the warm air upward, closing off the warm air from the surface.
    • They are shown on a map as purple lines with triangles and semicircle.
  • Diagram Of Occluded Front
  • Stationary Front
    • A stationary front occur when a boundary between air masses stop advancing.
    • They can remain in a place for several days and it cause light wind and precipitation.
    • They are shown on the map as an alternating red and blue line.
    • Red semicircle point toward the cold and blue towards the warm
  • Diagram OF Stationary Front