GEOG 1 Chapter 8 Quiz

What is true about air masses?

It has uniform temperature conditions derived from its source region

An mT air mass is likely to be _____ than a cT air mass because the mT air mass _____.

wetter; forms over the ocean

Which air mass combination would typically form over northern Canada?

cP

Which of the following is always the result at boundaries of two different air masses?

frontal uplift

Following what time of the year do midlatitude cyclones begin to form?

Summer Solstice

The Rossby waves play an important role in?

allowing warm air and cold air to meet along the polar front.

On the diagram of Rossby waves below, where would you expect to find a surface storm?

on the upslope of first part of the wave

Occlusions develop when?

a cold front catches up with a warm front

The gust front forms because of?

vigorous downdrafts in the thunderstorm

Mesocyclones are normally associated with?

supercell tornadoes

Tornadoes are ranked in terms of wind speed and related property damage using the?

Fujita scale

The peak tornado season in the continental U.S. is?

April through July

Which of the following conditions would not support the growth of a tropical cyclone?

abundant lifting
temperatures above 80 degrees Fahrenheit
** Low pressure in the upper atmosphere
high evaporation rates

An easterly wave would be found?

in the tropics before a hurricane forms.

Which of the following is the name of a tropical storm that emerges in the Indian Ocean?

cyclone

Where do midlatitude wave cyclones form?

Along the unstable boundary between warm and cold air

Which one of the following choices is accurate about a warm front?

It's the leading edge of an advancing warm air mass.

What happens to warm air in the center of a midlatitude wave cyclone?

It gets pinched and elevated by the advancing cold front.

What is an occluded front?

It's the atmospheric feature that forms when the intrusion of warm air stops in a midlatitude wave cyclone

Which one of the following choices is correct about midlatitude wave cyclones?

They spin counterclockwise in the northern hemisphere

What is the typical path of a strong midlatitude cyclone affecting the East Coast of the United States?

From the Northcentral US, southeast through the Southcentral US, then northeast along East Coast

As the cyclone proceeds through the southcentral US toward the East Coast, what is the moisture source for the cyclone?

Gulf of Mexico

The cold front associated with the cyclone extends in which direction from the cyclone's center?

South

What causes the ultimate downfall of our midlatitude cyclone?

Dry air is pulled into the core of the cyclone by its strong winds