The Great Air Race I

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Across
  1. 1. winds aloft
  2. 5. aerodrome forcast
  3. 7. good radiation absorber
  4. 8. weather report
  5. 11. crowded
  6. 12. The I in PSI
  7. 15. what radiation heats
  8. 16. same conditions over time
  9. 17. Standard day around the world
  10. 18. Time of year
  11. 22. terrestrial radiation heats this
  12. 23. above the tropopause
  13. 24. used instead of feet in other countries
  14. 26. French mist
  15. 27. flows from this to high
  16. 29. unstable air clouds
  17. 30. horizontal movement
  18. 32. force
  19. 35. inches measurement
  20. 36. the C in ATC
  21. 40. slows wind
  22. 43. not radiation or advection fog
  23. 44. Differences in pressure
  24. 45. movement of air
  25. 46. radiation that heats the earth
Down
  1. 1. flight rule maker
  2. 2. decrease
  3. 3. temperature resting place
  4. 4. Metar for snow
  5. 6. hundreds of millibars at 18,000'
  6. 9. transcribed weather forcast
  7. 10. where most weather occurs
  8. 11. Time of day
  9. 13. rising air does this
  10. 14. layered cloud
  11. 19. hazardous weather report
  12. 20. rolling air
  13. 21. vertical movement
  14. 25. 3 oxygens
  15. 28. area forcast
  16. 31. solar cause of weather changes
  17. 33. lines of equal pressure
  18. 34. sea level altitude
  19. 37. Mist
  20. 38. low cloud
  21. 39. one of the 7 elements
  22. 41. not out
  23. 42. Content of the earth's envelope
  24. 44. Rules of the atmosphere (2 words)