CRAZY WEATHER!

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Across
  1. 3. occurrence of a natural electrical discharge.
  2. 4. water vapor frozen into ice crystals.
  3. 7. phenomenon normally and violent.
  4. 11. crops and fruits are gathered and leaves fall.
  5. 12. period of frost or very cold weather.
Down
  1. 1. of freeze water drops.
  2. 2. variations which form drafts.
  3. 4. hotest season of the year.
  4. 5. loud rumbling or crashing noise heard after a lightning.
  5. 6. in which vegetation begins to appear.
  6. 8. mass of water suspended particles in the air.
  7. 9. coldest season of the year.
  8. 10. a high degree of heat or a high temperature.