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Across
  1. 5. Storm with lightning and thunder
  2. 10. Flash of light in storm
  3. 12. Layer of soil
  4. 15. Decayed organic material
  5. 19. Long-term weather pattern
  6. 20. Atmospheric conditions
  7. 21. Boundary between air masses
  8. 22. Fertile soil mixture
  9. 23. High-pressure weather system
  10. 25. Rotating column of air
Down
  1. 1. Sound after lightning
  2. 2. Sea inlet formed by glacier
  3. 3. Oval-shaped hill by glacier
  4. 4. Large floating ice mass
  5. 6. Tropical storm in Asia
  6. 7. Frozen precipitation
  7. 8. Large tropical storm
  8. 9. Severe snowstorm
  9. 11. Slow-moving river of ice
  10. 13. Permanently frozen ground
  11. 14. Low-pressure weather system
  12. 16. Debris deposited by glacier
  13. 17. Fine particles of soil
  14. 18. Solid rock beneath soil
  15. 24. Fine-grained natural rock