Question 1

The entrance region occurs ____________ of a jet streak,while the exit region occurs _________ of the jet streak.

Accepted Answer

A)  downwind,upwind 
B)  upwind,downwind 
C)  ahead,above 
D)  downwind,above 
A)  downwind,upwind 
B)  upwind,downwind 
C)  ahead,above 
D)  downwind,above

Question 2

Describe or illustrate the various phases in the life cycle of a middle latitude storm according to the polar front theory.

Accepted Answer

The answer of Describe or illustrate the various phases in...

Question 3

Vorticity is always present in the atmosphere,even during fair weather.

Accepted Answer

A) True 
 B)False

Question 4

If we assume that the absolute vorticity of flowing air is conserved,air moving northeastward will bend ____ to compensate for the ____ in the earth's vorticity.

Accepted Answer

A)  anticyclonically,decrease 
B)  anticyclonically,increase 
C)  cyclonically,increase 
D)  cyclonically,decrease 
A)  anticyclonically,decrease 
B)  anticyclonically,increase 
C)  cyclonically,increase 
D)  cyclonically,decrease

Question 5

Which below is not a name given to a large cyclonic storm system that forms in the middle latitudes?

Accepted Answer

A)  middle latitude cyclone 
B)  extratropical cyclone 
C)  wave cyclone 
D)  anticyclone 
A)  middle latitude cyclone 
B)  extratropical cyclone 
C)  wave cyclone 
D)  anticyclone

Question 6

How do shortwaves differ from a longwaves in the development of middle latitude storms?

Accepted Answer

Shortwaves and longwaves are terms used

Question 7

List two regions in the United States where cyclogenesis is common.Why does cyclogenesis preferentially occur in these areas?

Accepted Answer

Cyclogenesis, the development or strengt

Question 8

If the flow of air into a surface low pressure area is greater than the divergence of air aloft,the surface pressure in the center of the low will

Accepted Answer

A)  increase. 
B)  decrease. 
C)  remain the same. 
D)  deepen. 
A)  increase. 
B)  decrease. 
C)  remain the same. 
D)  deepen.

Question 9

When an upper-level low lies directly above a surface low,

Accepted Answer

A)  the surface low will probably weaken. 
B)  thunderstorms will develop. 
C)  a wave cyclone will begin to form. 
D)  the pressure of the surface low will decrease. 
E)  cyclogenesis will occur. 
A)  the surface low will probably weaken. 
B)  thunderstorms will develop. 
C)  a wave cyclone will begin to form. 
D)  the pressure of the surface low will decrease. 
E)  cyclogenesis will occur.

Question 10

Why does middle latitude storm development occur beneath troughs rather than ridges on a 500 mb chart?

Accepted Answer

The answer of Why does middle latitude storm development occur...

Question 11

An upper-level pool of cold air that has broken away from the main flow is called

Accepted Answer

A)  a cut-off low. 
B)  a shortwave. 
C)  a wave cyclone. 
D)  a lee-side low. 
A)  a cut-off low. 
B)  a shortwave. 
C)  a wave cyclone. 
D)  a lee-side low.

Question 12

Draw a sketch of a 500 mb chart that clearly shows a trough and a ridge.Where would you expect to find the maximum and minimum values of absolute vorticity? Where would you expect to find converging and diverging wind motions?

Accepted Answer

To draw a sketch of a 500 mb chart showi

Question 13

In the polar front theory of a developing wave cyclone,energy for the storm is usually derived from all but one of the following:

Accepted Answer

A)  rising of warm air and the sinking of cold air 
B)  latent heat of condensation 
C)  an increase in surface winds 
D)  heat energy stored in the ground 
A)  rising of warm air and the sinking of cold air 
B)  latent heat of condensation 
C)  an increase in surface winds 
D)  heat energy stored in the ground

Question 14

In the Southern Hemisphere,convergence and divergence don't play a role in the development of middle latitude cyclones.

Accepted Answer

A) True 
 B)False

Question 15

Describe some of the ways in which the upper-level wind flow pattern can influence the development and movement of a middle latitude storm system.

Accepted Answer

The upper-level wind flow pattern can gr

Question 16

The type of weather system known as a "mid-latitude cyclone" cannot form over the tropical ocean because:

Accepted Answer

A)  surface temperature contrasts are not large. 
B)  the ocean surface has a lot of waves. 
C)  the Coriolis force is weak in the tropics. 
D)  both surface temperature contrasts are not large and the ocean surface has a lot of waves. 
E)  both surface temperature contrasts are not large and the Coriolis force is weak in the tropics. 
A)  surface temperature contrasts are not large. 
B)  the ocean surface has a lot of waves. 
C)  the Coriolis force is weak in the tropics. 
D)  both surface temperature contrasts are not large and the ocean surface has a lot of waves. 
E)  both surface temperature contrasts are not large and the Coriolis force is weak in the tropics.

Question 17

Explain how cyclogenesis works.

Accepted Answer

Cyclogenesis is the process by which a c

Question 18

Jet streaks often occur away from jet streams.

Accepted Answer

A) True 
 B)False

Question 19

When making a weather forecast,which kind of chart is more important: a surface chart or a 500 mb chart?

Accepted Answer

When making a weather forecast, both sur

Question 20

How can shortwaves be identified and followed on 500 mb charts?

Accepted Answer

The answer of How can shortwaves be identified and followed...

The entrance region occurs ____ of a jet streak,while the exit region occurs _ of the jet streak.

Describe or illustrate the various phases in the life cycle of a middle latitude storm according to the polar front theory.

Vorticity is always present in the atmosphere,even during fair weather.

If we assume that the absolute vorticity of flowing air is conserved,air moving northeastward will bend to compensate for the in the earth's vorticity.

Which below is not a name given to a large cyclonic storm system that forms in the middle latitudes?

How do shortwaves differ from a longwaves in the development of middle latitude storms?

List two regions in the United States where cyclogenesis is common.Why does cyclogenesis preferentially occur in these areas?

If the flow of air into a surface low pressure area is greater than the divergence of air aloft,the surface pressure in the center of the low will

When an upper-level low lies directly above a surface low,

Why does middle latitude storm development occur beneath troughs rather than ridges on a 500 mb chart?

An upper-level pool of cold air that has broken away from the main flow is called

Draw a sketch of a 500 mb chart that clearly shows a trough and a ridge.Where would you expect to find the maximum and minimum values of absolute vorticity? Where would you expect to find converging and diverging wind motions?

In the polar front theory of a developing wave cyclone,energy for the storm is usually derived from all but one of the following:

In the Southern Hemisphere,convergence and divergence don't play a role in the development of middle latitude cyclones.

Describe some of the ways in which the upper-level wind flow pattern can influence the development and movement of a middle latitude storm system.

The type of weather system known as a "mid-latitude cyclone" cannot form over the tropical ocean because:

Explain how cyclogenesis works.

Jet streaks often occur away from jet streams.

When making a weather forecast,which kind of chart is more important: a surface chart or a 500 mb chart?

How can shortwaves be identified and followed on 500 mb charts?

Earth and Its Atmosphere

Energy: Warming the 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

Weather Forecasting

Thunderstorms and Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Light, Color, and Atmospheric Optics

Filters

Exam 12: Middle-Latitude Cyclones

The entrance region occurs ____________ of a jet streak,while the exit region occurs _________ of the jet streak.

Describe or illustrate the various phases in the life cycle of a middle latitude storm according to the polar front theory.

Vorticity is always present in the atmosphere,even during fair weather.

If we assume that the absolute vorticity of flowing air is conserved,air moving northeastward will bend ____ to compensate for the ____ in the earth's vorticity.

Which below is not a name given to a large cyclonic storm system that forms in the middle latitudes?

How do shortwaves differ from a longwaves in the development of middle latitude storms?

List two regions in the United States where cyclogenesis is common.Why does cyclogenesis preferentially occur in these areas?

If the flow of air into a surface low pressure area is greater than the divergence of air aloft,the surface pressure in the center of the low will

When an upper-level low lies directly above a surface low,

Why does middle latitude storm development occur beneath troughs rather than ridges on a 500 mb chart?

An upper-level pool of cold air that has broken away from the main flow is called

Draw a sketch of a 500 mb chart that clearly shows a trough and a ridge.Where would you expect to find the maximum and minimum values of absolute vorticity? Where would you expect to find converging and diverging wind motions?

In the polar front theory of a developing wave cyclone,energy for the storm is usually derived from all but one of the following:

In the Southern Hemisphere,convergence and divergence don't play a role in the development of middle latitude cyclones.

Describe some of the ways in which the upper-level wind flow pattern can influence the development and movement of a middle latitude storm system.

The type of weather system known as a "mid-latitude cyclone" cannot form over the tropical ocean because:

Explain how cyclogenesis works.

Jet streaks often occur away from jet streams.

When making a weather forecast,which kind of chart is more important: a surface chart or a 500 mb chart?

How can shortwaves be identified and followed on 500 mb charts?

Earth and Its Atmosphere

Energy: Warming the 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

Weather Forecasting

Thunderstorms and Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Light, Color, and Atmospheric Optics

Filters

The entrance region occurs ____ of a jet streak,while the exit region occurs _ of the jet streak.

If we assume that the absolute vorticity of flowing air is conserved,air moving northeastward will bend to compensate for the in the earth's vorticity.