Air masses, Fronts and Weather maps

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Across
  1. 5. balance between warm and cold fronts. Moderate weather.
  2. 6. How are air masses characterized?
Down
  1. 1. represented by a a line that is purple.
  2. 2. Represented by a line with triangles on a weather map
  3. 3. Represented by a line with half circles on a weather map
  4. 4. boundary between air masses