Question 1

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

Accepted Answer

An anticyclone is a type of high-pressure system, not a large cyclonic storm system that forms in the middle latitudes. The other options listed all refer to types of these storms.

Question 2

Cyclogenesis often occurs in regions without horizontal temperature gradients.

Accepted Answer

Cyclogenesis is the process of formation of a cyclone. Cyclones are low-pressure systems that form over the ocean. They are often associated with strong winds and heavy rainfall. Cyclogenesis can occur in regions with or without horizontal temperature gradients.

Question 3

Which of the scientists below was not one of the meteorologists who helped develop the polar front theory of a developing wave cyclone?

Accepted Answer

C.G. Rossby was not one of the original developers of the polar front theory; it was primarily developed by Bjerknes, Bergeron, and Solberg.

Question 4

For cyclogenesis to occur along a frontal wave,the winds aloft directly above the wave should be

Accepted Answer

Diverging winds aloft create a vacuum effect that encourages rising air and surface convergence, which are necessary for cyclogenesis.

Question 5

Another term for explosive cyclogenesis used by meteorologists is

Accepted Answer

"Bomb" is a colloquial term used by meteorologists to describe an intense and rapid deepening of a low-pressure system, which is essentially what explosive cyclogenesis refers to.

Question 6

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

If the inflow of air at the surface is greater than the outflow aloft, the excess air will cause the surface pressure to increase.

Question 7

A building anticyclone means

Accepted Answer

A building anticyclone means that the central pressure is increasing, as the high-pressure system is strengthening and becoming more dominant in the area.

Question 8

The polar front theory of a developing wave cyclone was conceived in

Accepted Answer

The answer of The polar front theory of a developing...

Question 9

Which of the following is not associated with rising air motions?

Accepted Answer

Convergence of air aloft is associated with sinking air motions, not rising.

Question 10

A lee-side low forms

Accepted Answer

A lee-side low forms on the downwind side of a mountain. As air flows up and over a mountain, it cools and releases precipitation. The air then descends down the other side of the mountain, warming and drying out, creating an area of low pressure on the lee side.

Question 11

Which region is not considered to be a region where cyclogenesis often occurs?

Accepted Answer

California is not considered to be a region where cyclogenesis often occurs.

Question 12

Northeasters (or nor'easters)are midlatitude storms commonly found

Accepted Answer

Nor'easters are storms that form along the East Coast of North America, typically from Virginia to New England. They are characterized by strong winds blowing from the northeast, hence the name "nor'easter." They can bring heavy rain, snow, and high waves, and often cause coastal flooding and power outages.

Question 13

The development or strengthening of a middle latitude storm system is called

Accepted Answer

Cyclogenesis refers to the development or strengthening of a middle latitude storm system, often associated with the formation of a low-pressure system. Convergence and divergence refer to the horizontal movement of air and do not necessarily indicate the formation or strengthening of a storm system. Frontolysis refers to the weakening or dissipation of a weather front, which is not the same as cyclogenesis.

Question 14

According to the model of the life cycle of a wave cyclone,the storm system is normally most intense

Accepted Answer

The storm system is normally most intense when it becomes occluded, which is a stage in the life cycle of a wave cyclone where the cold front catches up to the warm front, leading to the intensification of the storm.

Question 15

Cyclogenesis is the ____ of a mid-latitude cyclone.

Accepted Answer

Cyclogenesis refers to the development or strengthening of a mid-latitude cyclone.

Question 16

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

The energy for a developing wave cyclone is usually derived from the rising of warm air and the sinking of cold air, the latent heat of condensation, and an increase in surface winds. Heat energy stored in the ground is not a significant contributor to the energy of a developing wave cyclone.

Question 17

As westerly winds blow over a north-south oriented mountain range,the airflow is deflected in such a way that a trough forms on the ____________ side of the mountain.

Accepted Answer

As westerly winds blow over a north-south oriented mountain range, the airflow is deflected in such a way that a trough forms on the downwind side of the mountain. This is because the air is forced to rise over the mountain, leading to lower pressure and cooling, which can cause precipitation. On the downwind side, the air descends and warms, leading to higher pressure and drier conditions.

Question 18

On a surface weather map that shows an open wave cyclone,the warm sector can be observed

Accepted Answer

The warm sector of an open wave cyclone is located ahead of an advancing cold front, between the cold front and the warm front.

Question 19

The piling up of air above a region is called

Accepted Answer

The piling up of air above a region refers to convergence, which is the horizontal movement of air towards a specific location, leading to an accumulation of air in that area.

Question 20

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

Accepted Answer

In the Southern Hemisphere, convergence and divergence do play a role in the development of middle latitude cyclones, just like in the Northern Hemisphere. However, the direction of the flow around the cyclone is opposite due to the Coriolis effect.

Quiz 12: Middle-Latitude Cyclones