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Exam 10: Thunderstorms and Tornadoes

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Question 1

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Doppler radar can detect motion directly.

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Question 2

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Lightning always occurs between a cloud and the ground.

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

Thunderstorms are not always associated with cyclonic activity.

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

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:

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

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

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

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

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

The feature identified by Letter F is:

The greatest number of deaths associated with thunderstorms result from:

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

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

Which of the following should have the steepest pressure gradient?

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

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

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