Exam 11: Air Masses and Fronts

The greatest contrast in both temperature and moisture occurs along the boundary between which of the following air masses?

Referring to a weather map, which of the following statements defines "frontogenesis"?

Which of the following statements best compares an mT air mass with an mP air mass?

Which of the following expressions is the designation for a cool, moist air mass?

​ ​ Refer to the above surface weather map. -At which of the following positions is heavy snow most likely falling?

Which of the following areas provides a good regional source for an air mass?

Describe some of the changes in weather conditions (winds, temperature, clouds, precipitation, pressure changes) you can observe as a cold front approaches and passes through your location.

Draw side views of a typical warm and cold front. Clearly indicate the temperatures of the separate air masses and show their directions of motion. What types of clouds would likely occur and where? Where would precipitation occur?

Clear, sunny days with very cold nights are associated with which of the following types of air masses?

Which of the following statements accurately compares an average cold front to an average warm front?

Which of the following statements describes weather fronts in the southern hemisphere?

Which of the following situations provides an example of a "back door" cold front?

Which of the following terms refers to a cold front that moves into the Maritimes from the east or northeast?

-Which of the following options gives the names of the types of air masses that the upper air flow brings into southern Ontario?

Which of the following statements explains why a cP air mass becomes warmer at the surface after it moves from the east into British Columbia?

Which of the following types of air masses is mainly responsible for snow showers on the western slopes of the Rockies?

​ ​ Refer to the above surface weather map. -Which of the following would you expect to see as a cold front approaches?

Refer to the above surface weather map. -Between which of the following points is a cold front positioned?

-Which of the following options gives the names of the types of air masses that the upper air flow brings into Atlantic Canada?

On a weather map, which of the following types of weather fronts are drawn to indicate where cold air is replacing cool air?