Exam 11: Air Masses and Fronts

A stationary front does not move because

A dryline is

A halo around the sun or moon indicates that rain may be on the way because the halo indicates

Without considering changes in temperature,how are the weather conditions accompanying a cold frontal passage different from those associated with the passage of a warm front?

During the winter as you travel toward a warm front,the most likely sequence of weather you would experience is

How would a warm front,a cold front,and a center of low pressure appear on a surface weather map in the Southern Hemisphere?

An mT air mass lying above a cold ground surface represents a(n)____ situation.

How would each of the four basic types of air masses affect local weather conditions if they moved into your region?

Which of the following is not correct concerning a warm front?

Compared to an mP air mass,mT air is

Which air mass would show the most dramatic change in both temperature and moisture content as it moves over a large body of very warm water?

The designation for a cool,moist air mass is

When warm and cold air masses collide,the warm air is forced upward.Why does this occur?

What type of air mass would be responsible for hot,muggy summer weather in the eastern half of the United States?

The greatest contrast in both temperature and moisture will occur along the boundary separating which air masses?

Explain how,using no meteorological instruments other than your eyes,you could identify the passage of an occluded front.

List the four basic types of air masses.Give an example of where each type could originate.

Squall lines most often form ahead of a

An air mass is characterized by similar properties of ____ and ____ in any horizontal direction.

A true cold front on a weather map is always