Exam 10: Thunderstorms and Tornadoes

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

Why do most tornadoes in the central U.S.occur during the spring months?

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

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

On average,tornadoes kill more people every year in the United States than any other severe weather phenomenon.

Thunderstorm tops most likely occur:

A tornado watch is issued by the National Weather Service after a tornado has been sighted in an area.

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

Thunderstorms are not always associated with cyclonic activity.

Of the following states,which is struck by the largest number of tornadoes?

In which of the following places are thunderstorms most common?

It is generally considered safe to talk on the phone during a lightning storm,as long as it is a corded telephone.

Mountainous regions,such as the Rockies in the West and the Appalachians in the East,experience a greater number of air-mass thunderstorms than do the Plains states.

Which association is incorrect?

Conventional radar measures:

Why is so-called 'heat lightning' not associated with thunder?

A squall line is most likely to develop where?

Squall lines are easily recognized because of their unique nimbostratus clouds.