Quiz #4 will cover thunderstorms and the beginning of tornadoes, but may have a question or two from previous material.  Format will be the same as past quizzes and the midterm examination.

Rather than just give a list of terms that are found in the text, I am giving some practice questions to help you prepare for the quiz.

Typical questions that might show up on the quiz:

1. What is the primary requirement for the formation of thunderstorms?
2. Where would you expect thunderstorms to be most common on the earth?  In the United States?
3. At what time of day do most thunderstorms form?  Why?
4. How is thunder produced?
5. How far away is a lightning stroke if the thunder is heard 15 seconds after the lightning is seen?
6. What is heat lightning?
7. Explain how lightning forms.
8. Distinguish between a watch and a warning.
9. Why is it that tornadoes cannot be predicted accurately?
10. When a parcel of air approaches the center of a cyclone, how does its speed change?  What law accounts for this?
11. Tropical storms that form near the equator do not acquire a rotary motion as great as cyclones at higher latitudes.  Why?
12. Hurricanes have slower wind speeds than tornadoes, but inflict great damage.  How might this be explained?
13. Does opening windows help if a tornado is approaching?  Explain.
14. Explain how entrainment aids in the development of thunderstorms.
15. What is a downburst?
16. Doppler radar is different than ordinary radar in what regard?
17. Describe the formation of a thunderstorm and its various stages.
18. What are the three general types of thunderstorms?