Exam 11: Air Masses and Fronts

Record-breaking low temperatures are associated with which air mass?

What type of weather front would likely be responsible for the following weather forecast? "Increasing cloudiness and warm today with the possibility of showers by this evening. Turning much colder tonight. Winds southwesterly becoming gusty and shifting to northwesterly by tonight."

The coldest of all air masses is ____.

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

Explain how the airflow aloft regulates the movement of air masses.

A stationary front does not move because ____.

Which of the following statements is most plausible?

Is it possible for a stationary front to produce precipitation? If so, would you expect to find the precipitation on the warm or the cold air side of the front?

The Pineapple Express is an example of a relatively narrow channel of very most air known as a(an)____.

What types of weather changes accompany the passage of a dryline (dew point front)?

What are the criteria used to locate a front on a surface weather map?

During the spring, which air mass would most likely bring record-breaking high temperatures to the eastern half of the United States?

Warm, humid, and a chance of thunderstorms is a typical weather pattern produced by an air mass designated as ____________________.

Continental arctic and continental polar air masses can be difficult to distinguish, especially when the arctic air mass has traveled over warmer terrain.

One would expect a cP air mass to be

Occluded fronts may form when ____.

After an occluded front passes, the winds are most likely to be ____.

A situation, where a cold front overtakes a slower moving warm front, then underrides and lifts off the ground both the warm front and the warm air mass, is called ____.

On a colored weather map, a stationary front is drawn as an alternating red and blue line. Red semicircles face toward colder air on the red line and blue triangles point toward warmer air on the blue line.

Occluded fronts are colored ____________________ on a surface weather map.