PSC 50 Chap. 9

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If you observe short, intense, scattered rainfall as a front passes, what are you most likely to be experiencing?

A cold front.

In summer, which air mass type typically controls the southeast United States.

Maritime tropical.

What air mass type typically has the highest dew point?

Maritime tropical.

What is the name for an air mass that develops over warm tropical waters and is warm, moist, and unstable near the surface?

Maritime tropical.

Air-mass source regions are least likely to be found here.

Middle latitudes.

The boundary between a warm air mass moving into a cold air mass is called a:

warm front.

The boundary between two adjacent air masses is called?

A front.

What is the definition of air mass?

A large body of air with similar temperature and moisture characteristics.

What defines a front?

A narrow boundary separating different air masses.

On a map what type of line is used to identify a stationary front?

Alternating red and blue line with alternating triangle and half circle pips.

________ fronts usually have showery precipitation while ________ fronts usually have continuous precipitation.

Cold; warm.

On a map what type of line is used to identify a cold front?

Blue line with triangle pips.

This is the first type of cloud an observer will see when a warm front is approaching.

Cirrus.

What air mass type is typically the coldest.

Continental arctic.

On a map what type of line is used to identify an occluded front?

Purple line with alternating triangle and half circle pips.

On a map what type of line is used to identify a warm front?

Red line with half circle pips.

The earliest explanation for occluded fronts held that they formed when:

a cold front overtakes a warm front.

There are _______ types of primary fronts.

four.


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