Exam 12: Middle-Latitude Cyclones

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

Like hurricanes,polar lows have a clear area in their center.

A small,moving disturbance imbedded in a longwave is called

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

Which of the following statements is not correct about vorticity?

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

An upper-level trough that shows retrograde motion would probably be moving toward the

For a surface storm system to intensify,the upper-level low (or trough)should be located to the ____ of the surface low.

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

Vorticity refers to

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

A surface low pressure area with a deep upper-level trough to the west will tend to move toward the

The planetary vorticity of an air parcel moving from low toward high latitude in the Northern Hemisphere will

Cyclogenesis often occurs in regions without horizontal temperature gradients.

When upper-level divergence of air above a surface low pressure area is stronger than the convergence of surface air,the surface pressure will ____ and the storm itself will ____.

Longwaves in the middle and upper troposphere usually have lengths on the order of

A building anticyclone means

A lee-side low forms

Rossby waves are also known as

Lee-side lows are