Question 1

Clear sunny days with very cold nights would be associated with what type of air mass?

Accepted Answer

A)   ​mP
B)   ​mT
C)   ​cP
D)   ​cT
E)   ​mA

Question 2

The central United States is a very good air mass source region.

Accepted Answer

A) True 
 B)False

Question 3

​The weather forecast "Cool today with rain becoming heavy at times by this afternoon. Warmer tomorrow. Winds southeasterly becoming westerly by tomorrow morning." suggests that a warm occluded front is going to pass the area.

Accepted Answer

A) True 
 B)False

Question 4

A situation, where the cold, damp air is confined to the eastern side of mountains, is called​

Accepted Answer

A)   ​cold air trapping.
B)   ​"back door" front.
C)   ​frontolysis.
D)   ​cold occluded front.
E)   ​cold air damming.

Question 5

Continental arctic and continental polar air masses can be difficult to distinguish, especially when the arctic air mass has traveled over warmer terrain.

Accepted Answer

A) True 
 B)False

Question 6

List the four basic types of air masses. Give an example of where each type could originate.​

Accepted Answer

Air masses are grouped into five general categories according to their source region. Air masses that originate in polar latitudes are designated by the capital letter "P" (for polar); those that form in warm tropical regions are designated by the capital letter "T" (for tropical). If the source region is land, the air mass will be dry and the lowercase letter "c" (for continental) precedes the P or T. If the air mass originates over water, it will be moist-at least in the lower layers-and the lowercase letter "m" (for maritime) precedes the P or T. We can now see that polar air originating over land will be classified cP on a surface weather map, whereas tropical air originating over water will be marked as mT. In winter, an extremely cold air mass that forms over the Arctic is designated as cA continental arctic. Sometimes, however, it is difficult to distinguish between arctic and polar air masses, especially when the arctic air mass has traveled over warmer terrain.​

Question 7

A(n) ___________________ fronth as essentially no movement.​

Accepted Answer

The answer of A(n) ___________________ fronth as essentially no movement.​...

Question 8

A true cold front on a weather map is always

Accepted Answer

A)   ​associated with precipitation.
B)   ​associated with a wind shift.
C)   ​followed by drier air.
D)   ​followed by cooler air.
E)   ​followed by moist air.

Question 9

When a very cold air mass covers half of the United States, a very warm air mass often covers the other half. Explain how this happens.​

Accepted Answer

When a very cold air mass moves out of C...

Question 10

The same cold front typically produces more rain over Kentucky than over western Kansas.

Accepted Answer

A) True 
 B)False

Question 11

Is it possible for a stationary front to produce precipitation? If so, would you expect to find the precipitation on the warm or the cold air side of the front?​

Accepted Answer

The weather along the stationary front i...

Question 12

The origin of cP and cA air masses that enter the United States is

Accepted Answer

A)   ​Northern Siberia.
B)   ​the Northern Atlantic Ocean.
C)   ​Antarctica.
D)   ​Northern Canada and Alaska.
E)   ​the Eastern Pacific Ocean. D

Question 13

A good source region for an air mass would be

Accepted Answer

A)   ​mountains with deep valleys and strong surface winds.
B)   ​generally flat areas of uniform composition with light surface winds.
C)   ​hilly with deep valleys and light winds.
D)   ​generally flat area of uniform composition with strong surface winds
E)   ​mountainous areas with low surface pressure.

Question 14

Suppose a maritime polar air mass moving eastward from the Pacific Ocean travels across the United States. Describe all of the modifications that could take place as this air mass moves eastward in winter. In summer.​

Accepted Answer

The mP air mass would dry considerably a...

Question 15

An upper-air front involves downward motion of the

Accepted Answer

A)   ​tropopause.
B)   ​stratopause.
C)   ​low-level jet.
D)   ​both tropopause and low-level jet
E)   ​both stratopause and low-level jet.

Question 16

In winter, cold-front weather is typically more violent than warm-front weather. Why? Explain why this is not necessarily true in summer.​

Accepted Answer

In winter, cold fronts are well develope...

Question 17

​An mT air mass lying above a cold ground surface represents a(n) ____________________ situation.

Accepted Answer

​stable

Question 18

Occluded fronts are colored ____________________ on a surface weather map.​

Accepted Answer

The answer of Occluded fronts are colored ____________________ on a...

Question 19

One would expect a cP air mass to be

Accepted Answer

A)   ​cold and dry.
B)   ​cold and moist.
C)   ​warm and dry.
D)   ​warm and moist.
E)   ​temperate and dry.

Question 20

What type of air mass would be responsible for refreshing cool, dry breezes after a long summer hot spell in the Central Plains?​

Accepted Answer

A)   ​mP
B)   ​mT
C)   ​cP
D)   ​cT
E)   ​mA

Exam 11: Air Masses and Fronts

Clear sunny days with very cold nights would be associated with what type of air mass?

Correct Answer
verified

The central United States is a very good air mass source region.

Correct Answer
verified

The weather forecast "Cool today with rain becoming heavy at times by this afternoon. Warmer tomorrow. Winds southeasterly becoming westerly by tomorrow morning." suggests that a warm occluded front is going to pass the area.

Correct Answer
verified

A situation, where the cold, damp air is confined to the eastern side of mountains, is called

Correct Answer
verified

Continental arctic and continental polar air masses can be difficult to distinguish, especially when the arctic air mass has traveled over warmer terrain.

Correct Answer
verified

List the four basic types of air masses. Give an example of where each type could originate.

A(n) ___________________ fronth as essentially no movement.

Correct Answer
verified

A true cold front on a weather map is always

Correct Answer
verified

When a very cold air mass covers half of the United States, a very warm air mass often covers the other half. Explain how this happens.

Correct Answer
verified
When a very cold air mass moves out of C...
View Answer

The same cold front typically produces more rain over Kentucky than over western Kansas.

Correct Answer
verified

Is it possible for a stationary front to produce precipitation? If so, would you expect to find the precipitation on the warm or the cold air side of the front?

Correct Answer
verified
The weather along the stationary front i...
View Answer

The origin of cP and cA air masses that enter the United States is

Correct Answer
verified
D

A good source region for an air mass would be

Correct Answer
verified

Suppose a maritime polar air mass moving eastward from the Pacific Ocean travels across the United States. Describe all of the modifications that could take place as this air mass moves eastward in winter. In summer.

Correct Answer
verified
The mP air mass would dry considerably a...
View Answer

An upper-air front involves downward motion of the

Correct Answer
verified

In winter, cold-front weather is typically more violent than warm-front weather. Why? Explain why this is not necessarily true in summer.

Correct Answer
verified
In winter, cold fronts are well develope...
View Answer

An mT air mass lying above a cold ground surface represents a(n) ____________________ situation.

Correct Answer
verified
stable

Occluded fronts are colored ____________________ on a surface weather map.

Correct Answer
verified

One would expect a cP air mass to be

Correct Answer
verified

What type of air mass would be responsible for refreshing cool, dry breezes after a long summer hot spell in the Central Plains?

Correct Answer
verified

Exam 11: Air Masses and Fronts

Clear sunny days with very cold nights would be associated with what type of air mass?

Correct AnswerverifiedShow Answer

The central United States is a very good air mass source region.

Correct AnswerverifiedShow Answer

​The weather forecast "Cool today with rain becoming heavy at times by this afternoon. Warmer tomorrow. Winds southeasterly becoming westerly by tomorrow morning." suggests that a warm occluded front is going to pass the area.

Correct AnswerverifiedShow Answer

A situation, where the cold, damp air is confined to the eastern side of mountains, is called​

Correct AnswerverifiedShow Answer

Continental arctic and continental polar air masses can be difficult to distinguish, especially when the arctic air mass has traveled over warmer terrain.

Correct AnswerverifiedShow Answer

List the four basic types of air masses. Give an example of where each type could originate.​

A(n) ___________________ fronth as essentially no movement.​

Correct AnswerverifiedShow Answer

A true cold front on a weather map is always

Correct AnswerverifiedShow Answer

When a very cold air mass covers half of the United States, a very warm air mass often covers the other half. Explain how this happens.​

Correct AnswerverifiedWhen a very cold air mass moves out of C...View AnswerShow Answer

The same cold front typically produces more rain over Kentucky than over western Kansas.

Correct AnswerverifiedShow Answer

Is it possible for a stationary front to produce precipitation? If so, would you expect to find the precipitation on the warm or the cold air side of the front?​

Correct AnswerverifiedThe weather along the stationary front i...View AnswerShow Answer

The origin of cP and cA air masses that enter the United States is

Correct AnswerverifiedD

A good source region for an air mass would be

Correct AnswerverifiedShow Answer

Suppose a maritime polar air mass moving eastward from the Pacific Ocean travels across the United States. Describe all of the modifications that could take place as this air mass moves eastward in winter. In summer.​

Correct AnswerverifiedThe mP air mass would dry considerably a...View AnswerShow Answer

An upper-air front involves downward motion of the

Correct AnswerverifiedShow Answer

In winter, cold-front weather is typically more violent than warm-front weather. Why? Explain why this is not necessarily true in summer.​

Correct AnswerverifiedIn winter, cold fronts are well develope...View AnswerShow Answer

​An mT air mass lying above a cold ground surface represents a(n) ____________________ situation.

Correct Answerverified​stable

Occluded fronts are colored ____________________ on a surface weather map.​

Correct AnswerverifiedShow Answer

One would expect a cP air mass to be

Correct AnswerverifiedShow Answer

What type of air mass would be responsible for refreshing cool, dry breezes after a long summer hot spell in the Central Plains?​

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

The weather forecast "Cool today with rain becoming heavy at times by this afternoon. Warmer tomorrow. Winds southeasterly becoming westerly by tomorrow morning." suggests that a warm occluded front is going to pass the area.

Correct Answer
verified

A situation, where the cold, damp air is confined to the eastern side of mountains, is called

Correct Answer
verified

Correct Answer
verified

List the four basic types of air masses. Give an example of where each type could originate.

A(n) ___________________ fronth as essentially no movement.

Correct Answer
verified

Correct Answer
verified

When a very cold air mass covers half of the United States, a very warm air mass often covers the other half. Explain how this happens.

Correct Answer
verified
When a very cold air mass moves out of C...
View Answer

Correct Answer
verified

Is it possible for a stationary front to produce precipitation? If so, would you expect to find the precipitation on the warm or the cold air side of the front?

Correct Answer
verified
The weather along the stationary front i...
View Answer

Correct Answer
verified
D

Correct Answer
verified

Suppose a maritime polar air mass moving eastward from the Pacific Ocean travels across the United States. Describe all of the modifications that could take place as this air mass moves eastward in winter. In summer.

Correct Answer
verified
The mP air mass would dry considerably a...
View Answer

Correct Answer
verified

In winter, cold-front weather is typically more violent than warm-front weather. Why? Explain why this is not necessarily true in summer.

Correct Answer
verified
In winter, cold fronts are well develope...
View Answer

An mT air mass lying above a cold ground surface represents a(n) ____________________ situation.

Correct Answer
verified
stable

Occluded fronts are colored ____________________ on a surface weather map.

Correct Answer
verified

Correct Answer
verified

What type of air mass would be responsible for refreshing cool, dry breezes after a long summer hot spell in the Central Plains?

Correct Answer
verified