Exam 19: Weather Patterns and Severe Weather

In the Gulf Coast region of the United States cold fronts intense spring floods are often associated with a phenomenon known locally as "training" where thunderstorms form along a line and follow the same line for hours.This is a classic example of severe weather along a ________.

After the center of a mature wave cyclone passes,you should expect ________.

Which one of the following statements is not true of tornadoes?

Discuss the formation and growth of tropical cyclone (hurricanes)and how winds aloft affect their formation.

The new generation of weather radar that is capable of detecting motion directly is called ________ radar.

Usually ________ fronts produce several hours to days of moderate-to-gentle precipitation over a large region.

On a weather map,________ fronts are shown by a line with semicircles extending from one side.

Tornadoes of F1 to F2 in strength account for ________.

The eye of a hurricane is ________.

Warm fronts generally have steeper slopes than cold fronts.

What type of front is illustrated in the diagram below?

Where is the most severe weather typically located in a midlatitude cyclone?

You are in mid-latitudes in winter.You experience heavy snow followed by a dramatic drop in temperature as a cold front passes,but for almost 24 hours the weather is clear.Then,high clouds appear in the west,thicken to stratus clouds and you receive a light new snowfall (aka snow flurries)but the temperature remains cold.You have just seen the passage of ________.

Tornadoes have embedded secondary vortices called suction vortices.Hurricanes also have embedded secondary vortices,they are called ________.

Why does the central United States from Texas to the Ohio Valley experience the greatest frequency of tornadoes on Earth? What time of year do they occur and why?

An occluded front is depicted on a weather map as a line with semicircles on one side and triangular points on the other side.

At any given moment on Earth,there are about 100 active thunderstorms.

A cT air mass is ________.

Vortices within a tornado vortex,called suction vortices,often cause the greatest destruction within a given tornado.

Because surface winds circulate around a midlatitude cyclone,why do they move from west to east across North America?