Chapter Eleven

4. Answer: b. Each of these would declare a thunderstorm a severe thunderstorm except for tornadoes. You wouldn't call it a severe thunderstorm then but would declare a tornado warning instead.

5. Answer: c. Each of these is an upslope reason to have a flood, except for river debris. This often causes downslope contributions to the development of a flood.

6. Answer: d. These are all primary adverse effects of flooding except for soil turbulence, which is considered a positive effect of flooding as it can introduce new nutrients into croplands.

7. Answer: a. A tornado is any funnel cloud that is associated with strong ground winds as well.

8. Answer: c. You call a system like this a tornado family. Only if there is prolonged activity with supercells or sequences of storms will you use the other terminologies.

9. Answer: c. If you happen to see a rope tornado, this indicates that the tornado is dissipating and is losing its low pressure system in the center.

10. Answer: b. The degree of low-pressure you see within a tornado most predicts how long it will last on the ground as it is traveling.

CHAPTER ELEVEN

1. Answer: d. You could call any storm in the area tropical storm but if it is severe, you would most likely call it a hurricane.

2. Answer: c. The international dateline is where you would define a tropical storm. West of it, the storm is a typhoon and east of it, the storm is a hurricane.

3. Answer: b. A tropical disturbance is an area in the tropics where there is a low-pressure system but no rotation or circulation of the winds.