Question 1

The circulation in the immediate vicinity of a thunderstorm is:

Accepted Answer

A)  variable and gusty. 
B)  anticyclonic. 
C)  calm. 
D)  cyclonic. 
A)  variable and gusty. 
B)  anticyclonic. 
C)  calm. 
D)  cyclonic.

Question 2

The diameter of a typical tornado funnel cloud would be:

Accepted Answer

A)  150 - 600 meters. 
B)  1000 - 2500 meters. 
C)  3000 meters. 
D)  50 - 100 meters. 
A)  150 - 600 meters. 
B)  1000 - 2500 meters. 
C)  3000 meters. 
D)  50 - 100 meters.

Question 3

Which of the following U.S. states experiences the most thunderstorms each year?

Accepted Answer

A)  Oklahoma 
B)  Texas 
C)  Colorado 
D)  Florida 
A)  Oklahoma 
B)  Texas 
C)  Colorado 
D)  Florida

Question 4

What is entrainment?

Accepted Answer

A)  a line of thunderstorms, one feeding into the next 
B)  warm, moist air fed into a thunderstorm by the updraft 
C)  rotation from the parent cloud transferring into a tornado 
D)  the process of cool, dry air being pulled into a thunderstorm by the downdraft 
A)  a line of thunderstorms, one feeding into the next 
B)  warm, moist air fed into a thunderstorm by the updraft 
C)  rotation from the parent cloud transferring into a tornado 
D)  the process of cool, dry air being pulled into a thunderstorm by the downdraft

Question 5

Which of the following statements is NOT true of tornadoes?

Accepted Answer

A)  associated with cumulonimbus clouds 
B)  occur most frequently in the spring of the year 
C)  generally move from the southwest toward the northeast 
D)  usually occur along the warm front of a midlatitude cyclone 
A)  associated with cumulonimbus clouds 
B)  occur most frequently in the spring of the year 
C)  generally move from the southwest toward the northeast 
D)  usually occur along the warm front of a midlatitude cyclone

Question 6

Why are air mass thunderstorms most likely to occur in the midafternoon?

Accepted Answer

A)  Water- vapor contents are too low at night. 
B)  Upper- level winds are too fast at night and in morning. 
C)  Atmosphere is most unstable at that time. 
D)  It takes all day for them to mature. 
A)  Water- vapor contents are too low at night. 
B)  Upper- level winds are too fast at night and in morning. 
C)  Atmosphere is most unstable at that time. 
D)  It takes all day for them to mature.

Question 7

About what percent of thunderstorms in the United States become severe?

Accepted Answer

A)  10% 
B)  20% 
C)  50% 
D)  25% 
A)  10% 
B)  20% 
C)  50% 
D)  25%

Question 8

What causes the dissipating stage of a thunderstorm?

Accepted Answer

A)  spreading downdraft cuts off air inflow 
B)  converging winds aloft 
C)  loss of radiant energy from cloud top 
D)  converging surface winds 
E)  release of latent heat within the cloud 
A)  spreading downdraft cuts off air inflow 
B)  converging winds aloft 
C)  loss of radiant energy from cloud top 
D)  converging surface winds 
E)  release of latent heat within the cloud

Question 9

Which of the numbers listed below best represents the percentage of thunderstorms that produce tornadoes?

Accepted Answer

A)  fewer than 1 percent 
B)  slightly more than 50 percent 
C)  about 10 percent 
D)  nearly 25 percent 
A)  fewer than 1 percent 
B)  slightly more than 50 percent 
C)  about 10 percent 
D)  nearly 25 percent

Question 10

It is impossible to warn people of every lightning flash because:

Accepted Answer

A)  it kills few people compared to the other types of severe weather, so it isn't studied as much. 
B)  scientists don't understand exactly how it forms. 
C)  it strikes so frequently and in so many places. 
D)  people are only struck by lightning a few times each decade, so most don't listen to warnings. 
A)  it kills few people compared to the other types of severe weather, so it isn't studied as much. 
B)  scientists don't understand exactly how it forms. 
C)  it strikes so frequently and in so many places. 
D)  people are only struck by lightning a few times each decade, so most don't listen to warnings.

Question 11

Which association is incorrect?

Accepted Answer

A)  anvil - front of the thunderstorm 
B)  downdraft - precipitation 
C)  mesocyclone - region of tornado formation 
D)  tornado watch - a tornado has been sighted on the ground 
A)  anvil - front of the thunderstorm 
B)  downdraft - precipitation 
C)  mesocyclone - region of tornado formation 
D)  tornado watch - a tornado has been sighted on the ground

Question 12

Severe thunderstorm development occurs independently from the air flow aloft.

Accepted Answer

A) True 
 B)False

Question 13

The anvil top of a thunderstorm often marks the beginning of the stratosphere.

Accepted Answer

A) True 
 B)False

Question 14

Where in the thunderstorm would you be most likely to find mammatus clouds?

Accepted Answer

A)  Letter E 
B)  Letter F 
C)  Letter C 
D)  Letter D 
A)  Letter E 
B)  Letter F 
C)  Letter C 
D)  Letter D

Question 15

The strongest tornados are ranked ________on the Enhanced Fujita Intensity Scale.

Accepted Answer

The answer of The strongest tornados are ranked ________on the...

Question 16

What makes the narrow, rotating air column or vortex of a tornado visible?

Accepted Answer

Either the condensation of wat

Question 17

How is global climate change expected to impact thunderstorm activity in the United States over the next century?

Accepted Answer

A)  Climate change will have no definable impact on thunderstorm days. 
B)  Thunderstorm days are expected to decrease in the Southeastern United States. 
C)  More thunderstorms will occur in every state of the nation. 
D)  The environment necessary for severe thunderstorms will occur on more days for most locations east of the Rockies. 
A)  Climate change will have no definable impact on thunderstorm days. 
B)  Thunderstorm days are expected to decrease in the Southeastern United States. 
C)  More thunderstorms will occur in every state of the nation. 
D)  The environment necessary for severe thunderstorms will occur on more days for most locations east of the Rockies.

Question 18

A thunderstorm's direction of movement over the ground is determined by the gust front.

Accepted Answer

A) True 
 B)False

Question 19

Extreme evaporative cooling can sometimes produce explosions of straight- line winds called:

Accepted Answer

A)  gust fronts. 
B)  tornadoes. 
C)  downbursts. 
D)  air bombs. 
A)  gust fronts. 
B)  tornadoes. 
C)  downbursts. 
D)  air bombs.

Question 20

About 50 percent of North American tornadoes are classified as violent (EF4- EF5).

Accepted Answer

A) True 
 B)False

The circulation in the immediate vicinity of a thunderstorm is:

The diameter of a typical tornado funnel cloud would be:

Which of the following U.S. states experiences the most thunderstorms each year?

What is entrainment?

Which of the following statements is NOT true of tornadoes?

Why are air mass thunderstorms most likely to occur in the midafternoon?

About what percent of thunderstorms in the United States become severe?

What causes the dissipating stage of a thunderstorm?

Which of the numbers listed below best represents the percentage of thunderstorms that produce tornadoes?

It is impossible to warn people of every lightning flash because:

Which association is incorrect?

Severe thunderstorm development occurs independently from the air flow aloft.

The anvil top of a thunderstorm often marks the beginning of the stratosphere.

Where in the thunderstorm would you be most likely to find mammatus clouds?

The strongest tornados are ranked ________on the Enhanced Fujita Intensity Scale.

What makes the narrow, rotating air column or vortex of a tornado visible?

How is global climate change expected to impact thunderstorm activity in the United States over the next century?

A thunderstorm's direction of movement over the ground is determined by the gust front.

Extreme evaporative cooling can sometimes produce explosions of straight- line winds called:

About 50 percent of North American tornadoes are classified as violent (EF4- EF5).

Introduction to the Atmosphere

Heating Earths Surface and Atmosphere

Temperature

Moisture and Atmospheric Stability

Forms of Condensation and Precipitation

Air Pressure and Winds

Circulation of the Atmosphere

Air Masses

Weather Patterns

Hurricanes

Weather Analysis and Forecasting

Air Pollution

The Changing Climate

World Climates

Optical Phenomena of the Atmosphere

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Exam 10: Thunderstorms and Tornadoes

The circulation in the immediate vicinity of a thunderstorm is:

The diameter of a typical tornado funnel cloud would be:

Which of the following U.S. states experiences the most thunderstorms each year?

What is entrainment?

Which of the following statements is NOT true of tornadoes?

Why are air mass thunderstorms most likely to occur in the midafternoon?

About what percent of thunderstorms in the United States become severe?

What causes the dissipating stage of a thunderstorm?

Which of the numbers listed below best represents the percentage of thunderstorms that produce tornadoes?

It is impossible to warn people of every lightning flash because:

Which association is incorrect?

Severe thunderstorm development occurs independently from the air flow aloft.

The anvil top of a thunderstorm often marks the beginning of the stratosphere.

Where in the thunderstorm would you be most likely to find mammatus clouds?

The strongest tornados are ranked ________on the Enhanced Fujita Intensity Scale.

What makes the narrow, rotating air column or vortex of a tornado visible?

How is global climate change expected to impact thunderstorm activity in the United States over the next century?

A thunderstorm's direction of movement over the ground is determined by the gust front.

Extreme evaporative cooling can sometimes produce explosions of straight- line winds called:

About 50 percent of North American tornadoes are classified as violent (EF4- EF5).

Introduction to the Atmosphere

Heating Earths Surface and Atmosphere

Temperature

Moisture and Atmospheric Stability

Forms of Condensation and Precipitation

Air Pressure and Winds

Circulation of the Atmosphere

Air Masses

Weather Patterns

Hurricanes

Weather Analysis and Forecasting

Air Pollution

The Changing Climate

World Climates

Optical Phenomena of the Atmosphere

Filters