Exam 10: Thunderstorms and Tornadoes

Lightning only occurs under the central part of a thunderstorm cloud.

Doppler radar can now provide adequate warning of impending tornadoes at least 95 percent of the time.

Generally there are three stages involved in the development of air mass thunderstorms. They are:

Lightning always occurs between a cloud and the ground.

Updrafts dominate the cumulonimbus cloud during the in ____the life cycle of an air mass thunderstorm.

The Enhanced - Fujita Intensity Scale (EF- scale) is applied to:

The central United States sees more tornadoes than any other region in the world.

Hurricanes and thunderstorms can sometimes cause rapidly rising local floods that are short- lived but high volume. These are called:

Weak tornadoes (EF0- EF1) are responsible for the majority of tornado deaths because they are far more common than stronger tornadoes (EF2 and above).

Doppler radar can detect motion directly.

The feature identified by Letter F is:

Which of the following should have the steepest pressure gradient?

Why do most tornadoes tend to travel in the same general direction?

Thunderstorms are not always associated with cyclonic activity.

A roll cloud forms in association with which other common thunderstorm feature?

The primary force causing the fast winds of a tornado is electrical.

A tornado that does devastating damage and has estimated wind speeds of 300 km/hr (186 mph) would be ranked as an:

If you see lightning and then hear the associated thunder 10 seconds later, the lightning flash was about ______mile(s) away.

The greatest number of deaths associated with thunderstorms result from:

An airplane flown by an untrained pilot is likely to crash if it flies through a downburst.