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Exam 9: Weather Patterns

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Question 1

True/False

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Cyclogenesis refers to the birth of a cyclone.

A) True
B) False

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True

Question 2

Multiple Choice

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-The type of front represented in the diagram above is a:

A) warm-type occluded front.
B) cold-type occluded front.
C) cold front.
D) stationary front.

E) A) and C)
F) A) and B)

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Question 3

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What cloud type is often seen as the first sign of an approaching warm front?

Generally,a change in wind direction from southwest to northwest means bad weather will come soon.

The general term applied to warm air moving up over a colder air mass is:

The wind direction in a low pressure system is:

Occluded fronts characterize the beginning stages of a middle latitude cyclone.

Cyclonic winds are always counterclockwise in the northern hemisphere.

Compared to warm fronts,cold fronts have:

Middle-latitude anticyclones in the Northern Hemisphere:

A wind shift in a clockwise direction,as from south to west,is termed ________ wind shift.

Another common term for the wave cyclone is:

Most cyclones and anticyclones are generated by upper-level air flow.

In the United States,the air mass most commonly found at the back of a cold front is:

Each of the statements refers to the approach or to the passage of a front. If the statement refers to the approach of a typical cold front, use the letter A for your answer. If the statement refers to the approach or passage of a typical warm front, use the letter B. If the statement applies to both, answer with letter C -An "invading" cP air mass

After a cold front passes,which of these does NOT usually occur?

Line A-D probably represents:

An approaching wave cyclone would be indicated by a ________ barometer reading.

Why is the weather associated with a cold front usually of short duration?

Each of the statements refers to the approach or to the passage of a front. If the statement refers to the approach of a typical cold front, use the letter A for your answer. If the statement refers to the approach or passage of a typical warm front, use the letter B. If the statement applies to both, answer with letter C -Warm air is lifted over cold air.