Meteorology Exam 3 Quizzes/I Clickers

The equation that demonstrates pressure, temp, and density are related is the?

Equation of state

In an aneroid barometer, a general rule is that the higher the reading, the more likely ___ weather will occur, and the lower the reading. the better the chances are for ___ weather

clear; inclement

Lines of equal pressure on a weather map are called?

isobars

4. g

Choose ALL of the following activities that must be concerned with the effect of Coriolis force.

An ICBM (Intercontinental Ballistic Missle)Flight - Missles will fly "high" and "long."  Thus, creating a path that will veer to the left or right from it's original path (depending on which hemisphere you are in).  Coriolis force plays a huge role here.

A Southwest Airlines flight from Seattle, Washington to New York, New York. - This distance is roughly 2,400 miles from Seattle to New York. Obviously, this is a much larger distance, so the Coriolis force will be much larger.

The unit of pressure most commonly found on a surface weather map is

​millibars or hectopascals.

On an upper-level chart, normally we find warm air associated with [ Select ] ["low", "high"] pressure, and cold air associated with [ Select ] ["high", "low"] pressure.​

high

low

A rapid change in pressure over a relatively short distance is called a ____ pressure gradient.​

​steep

The amount of pressure change that occurs over a given horizontal distance is called the

​pressure gradient.

The contour lines drawn on a 500 mb chart are lines of constant

pressure.

Where is the effect of the Coriolis force the greatest?

At the poles

The Coriolis force acts at a ____ degree angle to the wind​.

90 ​

The scale on an altimeter indicates altitude, but an altimeter actually measures:

pressure

If Earth did not rotate, the wind would blow directly from regions of [ Select ] ["high", "low"] pressure toward regions of [ Select ] ["low", "high"] pressure.

high

low

Storms rank in size from largest to smallest, as follows: middle-latitude cyclonic storm, hurricane, thunderstorm, tornado.

 

True

The winter monsoon in eastern and southern Asia is characterized by

dry weather and winds blowing from land to sea.

Wind direction and speed can be determined with an aerovane.

True

On the eastern side of the Rocky Mountains, chinook winds are driest when

​clouds form and precipitation falls on the upwind side of the mountains.

An example of microscale motion is:

winds blowing through Jerseyville, Illinois.

Most people associate a monsoon with heavy rain and wind.  While that is true (somewhat), the term monsoon actually refers to what?

The United States has a monsoon season.  Where is it located?

A wind system that changes direction, seasonally.

The desert southwest.

Coastal areas can have strong waves on a clear, non-stormy day.

 

True

​An upper wind direction is reported as 315°. From what compass direction is the wind blowing?

​northwest

​The howling of wind on a blustery night is believed to be caused by

​air flowing past obstructions.

Friction is not restricted to solid objects; it occurs in moving fluids as well.

True

At any given time, only one jet stream can be found in the atmosphere.

False

The general circulation of the atmosphere represents the actual air flow around the world and not just an average.

 

False

The name given to the current of warm water that replaces cold surface water along the coast of Peru and Ecuador during December is

 

​El Niño.

Which statement describes the polar front jet stream?​

​It forms near the boundary called the polar front.

​The majority of the United States lies within this wind belt

​westerlies

Weather in the middle latitudes tends to move from east to west.​

True

The low-level jet that forms over the Central Plains of the United States in the summer appears to be responsible for​

​nighttime thunderstorms.

​The position of the Pacific high over the North Pacific Ocean shifts ____ in winter and ____ in summer.

​southward; northward

Occluded fronts may form when

a cold front overtakes a warm front.

A good air mass source region is generally flat and of uniform composition with light surface winds.

True

The lake effect occurs when a(n) ____ air mass moves over a ____ body of water.

​cP; warm

A(n) ___________________ front has essentially no movement.

stationary

Occluded fronts are colored purple on a surface weather map.

purple

What type of air mass would be responsible for hot, muggy summer weather in the eastern half of the United States?

 

​mT

A good source region for an air mass would be:

generally flat areas of uniform composition with light surface winds

The coldest of all air masses is

 

​cA.

Cold fronts are colored purple on a weather map.

 

False

What type of air mass would be responsible for persistent cold, damp weather with drizzle along the east coast of North America?

​mP

Which diagram is most correct as it relates to air pressure?

B

A ridge on an upper level chart indicates

higher than average heights

Which statement is true regarding low pressure?

rotates counter-clockwise and has unsettled weather

if you were located to the WEST of an area of LOW pressure, what would the wind direction be at your location?

north

if you were located to the SOUTH of an area of HIGH pressure, what would the wind direction be at your location?

east

What phenomenon is depicted in this picture?

sea breeze

which of the following best describes the general circulation of the atmosphere?

long term average wind patters over the globe

what is the main force that prevents the single cell model of atmopsheric circulation from occuring in the real world

coriolis

Which jet stream typically will ihe weather in the US during the fall and winter months?

Polar Jetstram

What happens when the polar and subtropical jet streams merge

increased changes for severe weather

where do low-level jet streams (LLJs) typically form when they are strongest?

over the central plains; at night

What direction does cold wind come from?

behind

What direction does the warm wind come from?

behind