Weather and Climate Exam 3 Quiz Questions

An air mass is a body of air with:

• at least two frontal zones.

• very low humidity in its lower layers.

• similar values of temperature and moisture at any given altitude.

• equal density throughout.

• very high pressure everywhere.

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NGSS.MS-ESS2-5

An air-mass source region:

• is best typified by the central United States.

• is characterized by a general stagnation of atmospheric circulation.

• may consist of both land and water.

• is generally an area characterized by a cyclonic circulation pattern.

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Compared to continental air masses with the same air temperature, maritime air masses:

• have lower water vapor content.

• have about the same water vapor content.

• have higher water vapor content.

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NGSS.MS-ESS2-5

What weather is associated with cA air masses?

• occasional periods of clear, cool weather in the summer

• hot humid conditions leading to cumulus cloud development and showers or thunderstorms

• cold spells in winter

• nor'easters

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NGSS.MS-ESS2-5

Most mP air masses that influence the U.S. originate over:

• the Gulf of Mexico.

• the Arctic Ocean.

• the central United States.

• the north Pacific.

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All of the following accompany a classic New England nor'easter EXCEPT:

• heavy snowfall

• widespread power outages and transportation interruptions

• a strong storm forming in Canada and moving into New England from the North

• mP air pulled in from the Atlantic Ocean

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What is an atmospheric river?

• A zone of intense rainfall associated with an mP air mass.

• An atmospheric flow that transports vast amounts of moisture to regions outside of the tropics.

• A zone of saturated air and frequent fog near the Gulf Stream.

• A period of extended rainfall in areas that are typically very dry.

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In North America the ________ air mass typically forms only in the summer.

• mP

• mT

• cT

• cP

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If an air mass passes over a surface that is warmer than it is, what can be said about the changes likely to happen within that air mass?

• The air mass will not undergo any air mass modifications.

• The air mass is likely to become more unstable.

• The air mass is likely to become more stable.

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NGSS.MS-ESS2-5

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Where would you expect to find the greatest amount of lake-effect snowfall?

• on the leeward shores of the Great Lakes

• directly north of the Great Lakes

• on the western coasts of the Great Lakes

• on the windward side of the Great Lakes

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