Question 1

The electrical discharge of lightning rapidly heats the air,which in turn causes it to expand explosively to produce ________.

Accepted Answer

The answer of The electrical discharge of lightning rapidly heats...

Question 2

The updrafts in thunderstorms are initiated by thermal instabilities at the surface.What process tends to increase the vertical instability that feeds the thunderstorm development?

Accepted Answer

A)  low pressure aloft
B)  a jet stream aloft
C)  release of latent heat by condensation
D)  Coriolis forcesE) None of the above
F) B) and C)

Question 3

By international agreement,lesser tropical cyclones are given different names based on the strength of their winds.When a cyclone's strongest winds do not exceed 61 kilometers (38 miles)per hour,it is called a(n)________.

Accepted Answer

The answer of By international agreement,lesser tropical cyclones are given...

Question 4

cold front stationary front warm front occluded front

Accepted Answer

The answer of cold front stationary front warm front occluded...

Question 5

When a hurricane moves onto land,it rapidly loses its punch; that is,the storm declines in intensity.Which of the factors listed below contribute to this loss of punch?

Accepted Answer

A)  disruption of outflow by strong winds aloft from the jet stream
B)  lack of warm,moist air to feed latent heat driven convection
C)  heating from below by the land surface
D)  formations of mesocyclones within the storm disrupt the circulationE) C) and D)
F) None of the above

Question 6

A large body of air that is characterized by a homogeneity of temperature and moisture at any given level is a(n)________.

Accepted Answer

The answer of A large body of air that is...

Question 7

The greatest storm surge and highest winds occur in the right-front quadrant of Northern Hemisphere hurricanes.

Accepted Answer

A) True 
 B)False

Question 8

The air masses that have the greatest influence on weather conditions in the central United States are ________.

Accepted Answer

A)  cP and mT
B)  mP and cP
C)  cT and cP
D)  mP and mTE) B) and C)
F) A) and B)

Question 9

Why has Doppler radar been very valuable in preventing loss of life by tornadoes?

Accepted Answer

A)  It can detect development of thunderstorm rotation and mesocyclone formation associated with tornadoes.
B)  It can detect the speed of a thunderstorm to allow accurate forecasting of arrival time of a tornado and its track.
C)  It can detect hail moving through the thunderstorm,allowing hail forecasts and its association with tornadoes.
D)  It can "see through" heavy rain and directly image tornadoes embedded in thunderstorms with heavy rain.E) B) and D)
F) A) and B)

Question 10

tropical storm tropical depression hurricane tornado

Accepted Answer

The answer of tropical storm tropical depression hurricane tornado...

Question 11

When an active cold front overtakes a warm front,________.

Accepted Answer

A)  the fronts cancel one another out
B)  cloud formation ceases
C)  an occluded front forms
D)  a stationary front is createdE) A) and B)
F) A) and C)

Question 12

"Rain long foretold,long last; short notice,soon past." The first five words of this weather proverb ________.

Accepted Answer

A)  refer to a cold front
B)  refer to a warm front
C)  refer to an anticyclone
D)  have no basis in factE) A) and B)
F) A) and C)

Question 13

Examine the words and/or phrases for each question below and determine the
relationship among the majority of words/phrases. Choose the option which does not fit the pattern.

-cP mT cA mP

Accepted Answer

The answer of Examine the words and/or phrases for each...

Question 14

Hurricanes most often develop in late summer.

Accepted Answer

A) True 
 B)False

Question 15

Doppler radar aids tornado detection by detecting motion within clouds.

Accepted Answer

A) True 
 B)False

Question 16

The southeastern United States lies in the heart of the "horse latitudes" where normally we would expect desert conditions.Why isn't this area a desert?

Accepted Answer

A)  Continental polar air masses disturb the pattern by periodic influxes of cold air.
B)  Maritime polar air masses disturb the pattern by driving pacific moisture across North America.
C)  Continental tropical air masses derived from Mexico disturb the pattern when these air masses are drawn northward by cyclonic storms.
D)  Maritime tropical air masses derived from the Gulf of Mexico disturb the pattern when these air masses are drawn northward by cyclonic storms.E) A) and B)
F) All of the above

Question 17

When the center of circulation of a midlatitude cyclone just passes to your south,you expect ________.

Accepted Answer

A)  a constantly rising barometer until the cyclone passes then falling barometer
B)  winds shifting from the east or northeast to northwest during rainy (or snowy) weather
C)  winds shifting from the south or southeast to the west or northwest with abrupt cooling at the passage of a cold front
D)  warming conditions during light to moderate rain with a falling barometer followed by a northwest wind and rising barometerE) B) and C)
F) A) and C)

Question 18

When an area is experiencing several consecutive days of rather constant weather,it is probably ________.

Accepted Answer

A)  warm-front weather
B)  cold-front weather
C)  air-mass weather
D)  occluded front weatherE) None of the above
F) B) and C)

Question 19

Thunderstorms are usually associated with nimbostratus clouds.

Accepted Answer

A) True 
 B)False

Question 20

What type of front is illustrated in the diagram below?

Accepted Answer

The answer of What type of front is illustrated in...

Exam 19: Weather Patterns and Severe Weather

The air masses that have the greatest influence on weather conditions in the central United States are ________.

Correct AnswerverifiedShow Answer

tropical storm tropical depression hurricane tornado

Correct AnswerverifiedShow Answer

Doppler radar aids tornado detection by detecting motion within clouds.

Correct AnswerverifiedShow Answer

Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern. -cP mT cA mP

Correct AnswerverifiedShow Answer

When a hurricane moves onto land,it rapidly loses its punch; that is,the storm declines in intensity.Which of the factors listed below contribute to this loss of punch?

Correct AnswerverifiedShow Answer

When an area is experiencing several consecutive days of rather constant weather,it is probably ________.

Correct AnswerverifiedShow Answer

"Rain long foretold,long last; short notice,soon past." The first five words of this weather proverb ________.

Correct AnswerverifiedShow Answer

Why has Doppler radar been very valuable in preventing loss of life by tornadoes?

Correct AnswerverifiedShow Answer

The updrafts in thunderstorms are initiated by thermal instabilities at the surface.What process tends to increase the vertical instability that feeds the thunderstorm development?

Correct AnswerverifiedShow Answer

When the center of circulation of a midlatitude cyclone just passes to your south,you expect ________.

Correct AnswerverifiedShow Answer

The electrical discharge of lightning rapidly heats the air,which in turn causes it to expand explosively to produce ________.

Correct AnswerverifiedShow Answer

When an active cold front overtakes a warm front,________.

Correct AnswerverifiedShow Answer

By international agreement,lesser tropical cyclones are given different names based on the strength of their winds.When a cyclone's strongest winds do not exceed 61 kilometers (38 miles)per hour,it is called a(n)________.

Correct AnswerverifiedShow Answer

The southeastern United States lies in the heart of the "horse latitudes" where normally we would expect desert conditions.Why isn't this area a desert?

Correct AnswerverifiedShow Answer

Hurricanes most often develop in late summer.

Correct AnswerverifiedShow Answer

What type of front is illustrated in the diagram below?

Correct AnswerverifiedShow Answer

Thunderstorms are usually associated with nimbostratus clouds.

Correct AnswerverifiedShow Answer

The greatest storm surge and highest winds occur in the right-front quadrant of Northern Hemisphere hurricanes.

Correct AnswerverifiedShow Answer

cold front stationary front warm front occluded front

Correct AnswerverifiedShow Answer

A large body of air that is characterized by a homogeneity of temperature and moisture at any given level is a(n)________.

Correct AnswerverifiedShow Answer

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