Exam 10: Thunderstorms and Tornadoes

The term "cyclone" simply refers to the circulation around any low- pressure center, no matter how large or intense it is.

Thunderstorms and large cumulonimbus clouds are characteristic of:

At what time of day is an air- mass thunderstorm more likely to develop?

Which type of lightning is LEAST likely?

More than half of all the flash- flood deaths occurring in the United States:

Thunderstorm tops most likely occur:

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

Which feature of the thunderstorm is created by the gust front?

When tornadoes develop it is usually in association with air- mass thunderstorms.

The leading edge of a gust front is frequently associated with:

A squall line is most likely to develop where?

If a severe thunderstorm produces large hail, it will not produce a tornado.

What does the term mesocyclone refer to in reference to a tornado?

Destruction caused by a tornado is primarily due to the large pressure drop as the funnel passes over.

The total discharge of lightning is made up of several rapid strokes and is known as the:

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

Divergence in the upper- level jet stream hinders the formation of severe thunderstorms.

Tornadoes most often move toward what direction?

A squall line with severe thunderstorms can form along a boundary called a dryline, a narrow zone along which there is an abrupt change in moisture.

A _________ is the outflowing cool air of a downdraft that acts as a "mini- cold front."