Meteorology

3. (of the sky or weather) marked by a covering of grey cloud
5. the change of wind velocity over horizontal or vertical distances
8. a sudden, powerful, localized air current
11. a wind blowing in the direction of travel of a vehicle or aircraft; a wind blowing from behind
12. partially melted snow or ice
15. a kind of storm which produces balls of ice
17. a loud crashing noise heard after a lightning flash
19. extremely hot
20. weather that is hot and uncomfortable
21. a thick cloud of water droplets which restricts visibility
22. tiny drops of water that form on cool surfaces at night
23. a strong current of air

1. rain containing some ice
2. a column of air that rapidly sinks toward the ground
4. a relatively high level of water vapor in the atmosphere
6. a storm with a violent wind
7. extremely cold
9. ice on transportation surfaces which cannot be easily seen
10. a wind blowing from directly in front, opposing forward motion
13. weather that keeps changing
14. small white ice crystals formed on the ground or other surfaces when the temperature falls below freezing
16. a period of time or season with heavy rain
18. light rain falling in very fine drops