Extreme weather and Natural disasters

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Across
  1. 3. A rapid descent of snow (9 letters)
  2. 6. A large fire that spreads quickly (8 letters)
  3. 7. A long period of low rainfall (7 letters)
  4. 9. A violent rotating column of air (7 letters)
Down
  1. 1. A sudden shaking of the ground (10 letters)
  2. 2. A severe snowstorm (8 letters)
  3. 4. A severe tropical cyclone (9 letters)
  4. 5. An overflow of water (5 letters)
  5. 8. A large wave caused by an underwater earthquake