Chapter 6

5. any series of events that repeat in the same order over and over again
7. the distance above sea level
9. the boundary where unlike air masses meet but do not mix
10. a tropical storm that has winds of about 119 kilometers per hour or higher
12. an extremely fast spinning column of air extending from the base of a thunderstorm to earth's surface
13. a violent disturbance in the atmosphere
14. the column of air that exerts force on you
16. a high pressure center of dry air
17. a long period with little or no rainfall
18. an overflowing of water in a normally dry area
20. a band of high speed winds about 6-14 km above earth's surface
21. the movement of air parallel to earth's surface

1. the thin envelope of gasses that surround the planet
2. a measure of the amount of water vapor in the air
3. the percent of water vapor in the air compared to the maximum amount of water vapor the air can hold at a particular temperature
4. a localized storm often accompanied by heavy precipitation, frequent thunder, and dangerous lightning
6. an open ended tube that collects rain
8. a swirling center of low air pressure
11. a scientist who studies and predicts weather
15. a dome of water that sweeps across the coast where the hurricane is traveling
19. the temperature at which condensation begins