Exam 8: Air Masses

As wintertime cP or cA air moves outward from its source region,it carries its warm wet weather to the United States.

The air masses that have the greatest influence on weather conditions in the Midwestern United States are:

The pronounced cooling that occurs on continents at high latitudes during winter leads to the formation of ________ air masses.

In the United States,lake-effect snows occur over which area?

-Consider the map above.What air mass is the most likely to be found in Florida,just ahead of the cold front?

Air mass modifications produced by cyclones or topography rather than surface temperatures are called:

An air mass moves out of its source region.Two days later,the lower layers of the air mass are found to be warmer than they were originally.What letter should be added to the end of the air mass's classification code?

If the lowercase letter k appears at the end of an air mass identification code,what can be said about the changes likely to happen within that air mass?

The place where an air mass originates is known as the ________.

Lines connecting places having equal rainfall on a map are called:

The ________ is characterized by a strong jet stream pulling mT air from Hawaii towards California.

An air mass is a body of air with:

-What term would a meteorologist give to the weather event represented on the map above?

When an air mass is warmer than the surface over which it is moving,its lower layers are chilled.

The cP air-mass in North America originates in:

What air-mass type tends to dominate the weather in the U.S.east of the Rocky Mountains during winter? During summer?

Maritime Polar air masses create heavy orographic precipitation on the windward side of western mountains in the winter.

The coldest and driest winter air-mass in North America is the:

What air-mass contributes to the formation of thunderstorms in the central U.S.?

Lake-effect snow occurs only during the early spring.