Across
- 1. pollution formed by the interaction of pollutants and sunlight
- 5. 15-25 miles per hour winds that are mild to warm in temperature
- 7. clouds cover more than 60 percent of the sky
- 12. sunrise to sunset
- 13. is moving air
- 14. a severe tropical cyclone with sustained winds over 74 miles per hour
- 18. a violent rotating column of air
- 19. the boundary or transition zone between two different air masses
- 20. liquid or solid water that falls from the atmosphere and reaches the ground
- 22. sky condition when greater than 9/10ths of the sky is covered by clouds
- 23. water overflows the natural or artificial confines of a stream or river
Down
- 1. means that less than half the sky has clouds
- 2. a snowfall that suddenly stops,starts, and changes rapidly in intensity
- 3. Occurs when the surface air temperature is expected to be 32 degrees Fahrenheit
- 4. in marine usage winds 55 miles per hour or greater
- 6. the sound caused by a lightning stroke
- 7. in winter means four to seven degrees Celsius below normal
- 8. abnormally dry weather in a region over an extended period
- 9. winter storm with strong winds
- 10. instrument measures atmospheric pressure
- 11. the process of a liquid changing into a vapor or gas
- 15. the amount of water vapor in the atmosphere
- 16. the process by which water vapor becomes a liquid
- 17. liquid water droplets that fall from the atmosphere
- 21. precipitation in the form of balls or irregular lumps of ice