Weather

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Across
  1. 4. thick, puffy masses, "cotton balls"
  2. 6. big "Anvil" type cloud
  3. 7. blowing snow, 35+ MPH winds
  4. 8. high level clouds
  5. 10. the layer in which we live
  6. 13. occur along the cold fronts
  7. 14. electric discharge that occurs between a positive and negative charge
  8. 16. moisture condensed from the atmosphere that falls visibly in separate drops
Down
  1. 1. sounds caused by the rapid expansion of air molecules
  2. 2. thick grey masses
  3. 3. fast and dense stay close to surface
  4. 5. form of precipitation consisting of ice pellets
  5. 9. contains the "ozone layer"
  6. 11. low sheets or layers
  7. 12. violently rotating column of air
  8. 15. storm with violent wind