Question 1

During the summer in the western Prairies, which of the following conditions prevail near the surface and help hailstones survive as ice all the way to the ground?

Accepted Answer

A) cold, shallow layer of dry air 
B) cold, thick layer of moist air 
C) warm, thick layer of moist air 
D) warm, shallow layer of dry air 
A) cold, shallow layer of dry air 
B) cold, thick layer of moist air 
C) warm, thick layer of moist air 
D) warm, shallow layer of dry air D

Question 2

Do invisible tornadoes exist? Explain.

Accepted Answer

Invisible tornadoes do not exist. Tornadoes are formed when warm, moist air collides with cold, dry air, creating a rotating column of air. This rotating column of air is typically visible due to the dust and debris it picks up as it moves across the ground. While it is possible for the funnel of a tornado to be obscured by heavy rain or cloud cover, making it difficult to see, it is not truly invisible. Tornadoes can also be detected using radar and other meteorological tools, so even if they are not visible to the naked eye, they can still be tracked and monitored. Therefore, while tornadoes may appear to be invisible under certain conditions, they are not truly invisible in the literal sense.

Question 3

Which of the following terms refers to the cloud that forms along the leading edge of a gust front?

Accepted Answer

A) roll cloud 
B) anvil cloud 
C) wedge cloud 
D) mammatus cloud 
A) roll cloud 
B) anvil cloud 
C) wedge cloud 
D) mammatus cloud A

Question 4

In which of the following locations would thunderstorms be LEAST likely to form?

Accepted Answer

A) the tropics 
B) mountain ranges 
C) the interior of an mT air mass 
D) northern Canada 
A) the tropics 
B) mountain ranges 
C) the interior of an mT air mass 
D) northern Canada

Question 5

Which of the following describes the condition of thunderstorms that often result in flash floods?

Accepted Answer

A) They have weak or non-existent downdrafts. 
B) They contain no lightning. 
C) They move slowly. 
D) They form in a dry air mass. 
A) They have weak or non-existent downdrafts. 
B) They contain no lightning. 
C) They move slowly. 
D) They form in a dry air mass.

Question 6

Which of the following terms refers to a line of thunderstorms that forms ahead of an advancing cold front?

Accepted Answer

A) squall line 
B) wall cloud 
C) gust front 
D) roll cloud 
A) squall line 
B) wall cloud 
C) gust front 
D) roll cloud

Question 7

On a surface weather map, which of the following marks the boundary where a warm, dry air mass encounters a warm, moist air mass?

Accepted Answer

A) wall cloud 
B) storm front 
C) dryline 
D) gust front 
A) wall cloud 
B) storm front 
C) dryline 
D) gust front

Question 8

Which of the following statements characterizes most waterspouts?

Accepted Answer

A) They form in an area where winds are descending from a cloud. 
B) They have rotating winds of less than 45 knots. 
C) They draw water up into their core. 
D) They form in severe thunderstorms. 
A) They form in an area where winds are descending from a cloud. 
B) They have rotating winds of less than 45 knots. 
C) They draw water up into their core. 
D) They form in severe thunderstorms.

Question 9

Which of the following factors applies to the Enhanced Fujita scale?

Accepted Answer

A) the size of the thunderstorm image on a radar screen 
B) the size of the tornado-producing thunderstorm 
C) the amount of hail that falls from a mature thunderstorm 
D) the strength of a tornado 
A) the size of the thunderstorm image on a radar screen 
B) the size of the tornado-producing thunderstorm 
C) the amount of hail that falls from a mature thunderstorm 
D) the strength of a tornado

Question 10

Which of the following terms refers to the rotating updraft inside a severe thunderstorm?

Accepted Answer

A) mesocyclone 
B) funnel cloud 
C) mesohigh 
D) suction vortex 
A) mesocyclone 
B) funnel cloud 
C) mesohigh 
D) suction vortex

Question 11

Which of the following describes the frequency of tornadoes in Canada?

Accepted Answer

A) most frequent in spring, least frequent in fall 
B) most frequent in summer, least frequent in fall 
C) most frequent in summer, least frequent in winter 
D) most frequent in spring, least frequent in winter 
A) most frequent in spring, least frequent in fall 
B) most frequent in summer, least frequent in fall 
C) most frequent in summer, least frequent in winter 
D) most frequent in spring, least frequent in winter

Question 12

Which of the following statements accurately compares the frequency of lightning discharges within a cloud and cloud-to-ground lightning?

Accepted Answer

A) Discharges within a cloud are more frequent. 
B) Discharges within a cloud are about as frequent. 
C) Discharges within a cloud occur rarely. 
D) Discharges within a cloud are less frequent. 
A) Discharges within a cloud are more frequent. 
B) Discharges within a cloud are about as frequent. 
C) Discharges within a cloud occur rarely. 
D) Discharges within a cloud are less frequent.

Question 13

Which of the following conditions describes a mesoscale convective complex?

Accepted Answer

A) tornadoes that cause a great deal of damage 
B) a rapidly rotating tornado cyclone inside a massive thunderstorm 
C) a complex display of lightning from distant thunderstorms 
D) individual thunderstorms that grow into a large, long-lasting weather system 
A) tornadoes that cause a great deal of damage 
B) a rapidly rotating tornado cyclone inside a massive thunderstorm 
C) a complex display of lightning from distant thunderstorms 
D) individual thunderstorms that grow into a large, long-lasting weather system

Question 14

At which level are the jet streaks found that contribute to the development of severe thunderstorms?

Accepted Answer

A) 50 hPa 
B) 250 hPa 
C) 500 hPa 
D) 1000 hPa 
A) 50 hPa 
B) 250 hPa 
C) 500 hPa 
D) 1000 hPa

Question 15

Which of the following factors distinguishes severe thunderstorms from ordinary thunderstorms?

Accepted Answer

A) Severe thunderstorms contain hail. 
B) Severe thunderstorms have a strong updraft and downdraft. 
C) Severe thunderstorms have a tilted updraft in the mature stage. 
D) Severe thunderstorms have an anvil-shaped cloud. 
A) Severe thunderstorms contain hail. 
B) Severe thunderstorms have a strong updraft and downdraft. 
C) Severe thunderstorms have a tilted updraft in the mature stage. 
D) Severe thunderstorms have an anvil-shaped cloud.

Question 16

Which of the following statements characterizes a "fair weather" waterspout?

Accepted Answer

A) It tends to move more rapidly than a tornado. 
B) It is usually larger than a tornado. 
C) It is usually less intense than a tornado. 
D) It generally indicates stable atmospheric conditions. 
A) It tends to move more rapidly than a tornado. 
B) It is usually larger than a tornado. 
C) It is usually less intense than a tornado. 
D) It generally indicates stable atmospheric conditions.

Question 17

List and discuss some of the atmospheric conditions that are needed for a thunderstorm to develop.

Accepted Answer

The answer of List and discuss some of the atmospheric...

Question 18

Which of the following defines an ordinary thunderstorm?

Accepted Answer

A) a storm that does not produce lightning or thunder 
B) a scattered or isolated storm that is not severe 
C) a storm that has a tilted updraft and downdraft 
D) a storm that does not produce hail 
A) a storm that does not produce lightning or thunder 
B) a scattered or isolated storm that is not severe 
C) a storm that has a tilted updraft and downdraft 
D) a storm that does not produce hail

Question 19

What is a squall line? Where do squall lines tend to form?

Accepted Answer

A squall line is a line of severe thunde

Question 20

Which of the following factors is the most likely cause of the wind shear associated with several major airline crashes?

Accepted Answer

A) drylines 
B) microbursts 
C) jet stream 
D) mesocyclones 
A) drylines 
B) microbursts 
C) jet stream 
D) mesocyclones

During the summer in the western Prairies, which of the following conditions prevail near the surface and help hailstones survive as ice all the way to the ground?

Do invisible tornadoes exist? Explain.

Which of the following terms refers to the cloud that forms along the leading edge of a gust front?

In which of the following locations would thunderstorms be LEAST likely to form?

Which of the following describes the condition of thunderstorms that often result in flash floods?

Which of the following terms refers to a line of thunderstorms that forms ahead of an advancing cold front?

On a surface weather map, which of the following marks the boundary where a warm, dry air mass encounters a warm, moist air mass?

Which of the following statements characterizes most waterspouts?

Which of the following factors applies to the Enhanced Fujita scale?

Which of the following terms refers to the rotating updraft inside a severe thunderstorm?

Which of the following describes the frequency of tornadoes in Canada?

Which of the following statements accurately compares the frequency of lightning discharges within a cloud and cloud-to-ground lightning?

Which of the following conditions describes a mesoscale convective complex?

At which level are the jet streaks found that contribute to the development of severe thunderstorms?

Which of the following factors distinguishes severe thunderstorms from ordinary thunderstorms?

Which of the following statements characterizes a "fair weather" waterspout?

List and discuss some of the atmospheric conditions that are needed for a thunderstorm to develop.

Which of the following defines an ordinary thunderstorm?

What is a squall line? Where do squall lines tend to form?

Which of the following factors is the most likely cause of the wind shear associated with several major airline crashes?

Earth and Its Atmosphere

Energy: Warming Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation: Dew, Fog, and Clouds

Stability and Cloud Development

Precipitation

Air Pressure and Winds

Wind: Small-Scale and Local Systems

Wind: Global Systems

Air Masses and Fronts

Middle-Latitude Cyclones

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Filters

Exam 13: Weather Forecasting

During the summer in the western Prairies, which of the following conditions prevail near the surface and help hailstones survive as ice all the way to the ground?

Do invisible tornadoes exist? Explain.

Which of the following terms refers to the cloud that forms along the leading edge of a gust front?

In which of the following locations would thunderstorms be LEAST likely to form?

Which of the following describes the condition of thunderstorms that often result in flash floods?

Which of the following terms refers to a line of thunderstorms that forms ahead of an advancing cold front?

On a surface weather map, which of the following marks the boundary where a warm, dry air mass encounters a warm, moist air mass?

Which of the following statements characterizes most waterspouts?

Which of the following factors applies to the Enhanced Fujita scale?

Which of the following terms refers to the rotating updraft inside a severe thunderstorm?

Which of the following describes the frequency of tornadoes in Canada?

Which of the following statements accurately compares the frequency of lightning discharges within a cloud and cloud-to-ground lightning?

Which of the following conditions describes a mesoscale convective complex?

At which level are the jet streaks found that contribute to the development of severe thunderstorms?

Which of the following factors distinguishes severe thunderstorms from ordinary thunderstorms?

Which of the following statements characterizes a "fair weather" waterspout?

List and discuss some of the atmospheric conditions that are needed for a thunderstorm to develop.

Which of the following defines an ordinary thunderstorm?

What is a squall line? Where do squall lines tend to form?

Which of the following factors is the most likely cause of the wind shear associated with several major airline crashes?

Earth and Its Atmosphere

Energy: Warming Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation: Dew, Fog, and Clouds

Stability and Cloud Development

Precipitation

Air Pressure and Winds

Wind: Small-Scale and Local Systems

Wind: Global Systems

Air Masses and Fronts

Middle-Latitude Cyclones

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Filters