Wind

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Across
  1. 3. A sudden, strong blast of wind
  2. 5. A sudden, strong wind, often accompanied by a shower or thunderstorm
  3. 7. Wind speeds from 34 to 47 knots
  4. 9. A tropical cyclone
  5. 10. A hot, dry wind blowing from northern Africa
  6. 14. An informal word for a tornado
  7. 16. A device for measuring wind speeds
  8. 17. Prone to sudden, violent rushes of wind
  9. 18. To change direction clockwise
  10. 19. A unit used to measure wind speed
Down
  1. 1. A wind that blows predominantly from a particular direction
  2. 2. A wind coming from directly behind a moving aircraft
  3. 4. An easterly wind that always blows in the same direction, towards the equator
  4. 6. A light breeze
  5. 8. A vertical air current in a thunderstorm that rapidly sinks towards the ground
  6. 10. A sudden change in wind velocity and/or direction
  7. 11. A wind that blows across the course of an aircraft
  8. 12. Full of ups and downs due to turbulence
  9. 13. A fast-moving, usually westerly wind in the upper troposphere
  10. 15. A cloth object used to show approximate wind direction and speed