Exam 12: Middle-Latitude Cyclones

Which of the following describes the warm conveyor belt?

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

Which of the following statements describes the usual speed and strength of atmospheric shortwaves?

When a deep upper-level trough is located to the east of a surface anticyclone, in which of the following directions will the surface anticyclone tend to move?

Hurricane Hazel is an example of a storm that had undergone which of the following?

Nor'easters are middle-latitude storms. In which of the following regions are they commonly found?

Which of the following terms refers to the atmosphere as shown on an upper-level chart where isotherms cross the contours and temperature advection occurs?

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

Define the term cyclogenesis. List some of the regions in Canada where cyclogenesis is common.

Sketch a 500 hPa chart that clearly shows a trough and a ridge. Where do you expect to find the maximum and minimum values of absolute vorticity? Where do you expect to find converging and diverging wind motions? Below what point on your 500 hPa chart do you expect middle-latitude storm development to occur?

Which of the following terms refers to a strong storm that develops over water, poleward of the polar front?

For a surface storm system to intensify, the upper-level low would be located in which direction relative to the surface low?

Which of the following terms is true about middle-latitude cyclones in North America?

Which of the following defines lee-side lows?

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

According to the model of a wave cyclone life cycle, in which of the following situations does a storm system usually become most intense?

Which of the following is true about the Pineapple Express?

Which of the following is another name for Rossby waves?

What are diffluence and speed divergence? How do these differ from confluence and speed convergence?

With the aid of a diagram, show why an intensifying surface low-pressure centre, located just east of a deep upper-level trough, will often move in a northeasterly direction.