Nature and Natural Disasters

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Across
  1. 2. The alternate rising and falling of the sea
  2. 5. Moisture condensed from the atmosphere
  3. 7. A visible mass of condensed water vapor floating in the atmosphere
  4. 8. A large natural elevation of the earth's surface
Down
  1. 1. A loud rumbling or crashing noise heard after a lightning flash
  2. 2. A mobile, destructive vortex of violently rotating winds
  3. 3. A tropical cyclone with winds of 74 miles (119 kilometers) per hour or greater
  4. 4. The occurrence of a natural electrical discharge of very short duration
  5. 6. A series of powerful ocean waves caused by large, sudden underwater disturbance