weather Puzzle

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Across
  1. 1. lowest layer of atmosphere
  2. 2. when warm air and cold air sinks
  3. 3. pressure rising warm air, brings clouds
  4. 4. stream strong band of westerlies wind
  5. 6. upper layer of atmosphere
  6. 7. quality when air pollution is free
  7. 8. severe snowstorm with heavy winds and low visibility
  8. 12. vapor turning into water
  9. 14. flat bases, bringing heavy rain
  10. 15. small-mid layer patch of clouds
  11. 18. storm with heavy winds, forms over ocean
  12. 20. gases surrounding earth
  13. 22. liquid changing to a gas
Down
  1. 1. thickest layer of atmosphere
  2. 5. strong vortex with fast moving funnel winds
  3. 6. low-lever, layering clouds
  4. 9. winds air that flows over a small area
  5. 10. winds caused by uneven heating of Earth's surface
  6. 11. highest layer of atmosphere
  7. 13. front front that sits over an area
  8. 16. front slow moving front that brings rain
  9. 17. mass big body of air that has a similar temp
  10. 18. pressure sinking cold air, brings clear skies
  11. 19. wispy clouds, like hair
  12. 21. front quick moving front bringing thunderstorms