Meteorology Quiz 8

Which of the following is not correct concerning a warm front? it is colored red on a weather map it has warm air ahead (in advance) of it in winter it is usually associated with stratiform clouds it normally moves more slowly than a cold front

It has warm air ahead (in advance) of it

On a weather map, the transition zone between two air masses with sharply contrasting properties is marked by: the letter "H". the words "air mass weather". a front. the letter "L".

a front.

The type of weather system known as a 'mid-latitude cyclone' cannot form over the tropical ocean because: surface temperature contrasts are not large the ocean surface has a lot of waves the Coriolis force is weak in the tropics both (a) and (b) both (a) and (c)

both (a) and (c)

What type of air mass would be responsible for hot, dry summer weather in southern Arizona? mP mT cP cT

cT

In winter, which sequence of clouds would you most likely expect to observe as a warm front with precipitation approaches your location? cirrus, nimbostratus, altostratus, cumulonimbus cirrus, cirrostratus, altostratus, nimbostratus altostratus, cirrostratus, cumulonimbus, nimbostratus cirrostratus, nimbostratus, altostratus, fog cirrus, cirrostratus, altostratus, cumulonimbus

cirrus, cirrostratus, altostratus, nimbostratus

One would expect a cP air mass to be: cold and dry. cold and moist. warm and dry. warm and moist.

cold and dry.

What type of weather front would be responsible for the following weather forecast: "Increasing cloudiness and warm today with the possibility of showers by this evening. Turning much colder tonight. Winds southwesterly becoming gusty and shifting to northwesterly by tonight." cold front warm front cold-type occluded front stationary front

cold front

Developing low pressure areas generally have __________ air near the surface and __________ air aloft. converging, diverging diverging, converging converging, converging diverging, diverging

converging, diverging

The development or strengthening of a middle latitude storm system is called: convergence. divergence. cyclogenesis. frontolysis.

cyclogenesis.

For cyclogenesis to occur along a frontal wave, the winds aloft directly above the wave should be: diverging. converging. blowing straight from west to east. increasing in speed uniformly over a broad area.

diverging.

Before the passage of a cold front the pressure normally __________, and after the passage of a cold front the pressure normally __________. drops, drops drops, rises rises, rises rises, drops

drops, rises

A true cold front on a weather map is always: associated with precipitation. associated with a wind shift. followed by drier air. followed by cooler air.

followed by cooler air.

A good source region for an air mass would be: mountains with deep valleys and strong surface winds. generally flat areas of uniform composition with light surface winds. hilly with deep valleys and light winds. generally flat area of uniform composition with strong surface winds.

generally flat areas of uniform composition with light surface winds.

When comparing an "average" cold front to an "average" warm front, which of the following is not correct? generally, cold fronts move faster than warm fronts generally, cold fronts have steeper slopes generally, precipitation covers a much broader area with a cold front especially in winter, cumuliform clouds are more often associated with cold fronts

generally, precipitation covers a much broader area with a cold front

In the polar front theory of a developing wave cyclone, energy for the storm is usually derived from all but one of the following. rising of warm air and the sinking of cold air latent heat of condensation an increase in surface winds heat energy stored in the ground

heat energy stored in the ground

If the flow of air into a surface low pressure area is greater than the divergence of air aloft, the surface pressure in the center of the low will: increase. decrease. remain the same. deepen.

increase.

Which of the following is not correct concerning a cold front? it marks the position of a trough of low pressure it marks a zone of shifting winds it is colored purple on a weather map it has cold air behind it

it is colored purple on a weather map

Lake-effect snows are best developed around the Great Lakes during: early spring when moist, tropical air moves over the frozen lakes. late fall and early winter when cold, dry polar air moves over the relatively warm water. late fall and early winter when moist, polar air sweeps in from the east. middle winter when the unseasonably warm air mass moves over the cold water.

late fall and early winter when cold, dry polar air moves over the relatively warm water.

What type of air mass would be responsible for snow showers on the western slopes of the Rockies? mT cP mP cA

mP

A warm, moist air mass that forms over water is called: cP. mP. mT. wT.

mT

The greatest contrast in both temperature and moisture will occur along the boundary separating which air masses? cP and cT mP and mT mP and cT mT and cP cT and mT

mT and cP

When two air masses collide at a front, one air mass is pushed upward by the other. This is because: one air mass is moving faster than the other. one air mass is denser than the other. pressure is falling in one air mass and rising in the other. one of the air masses encounters topographical features on the ground.

one air mass is denser than the other.

The rising of warm air up and over cold air is called: overrunning. frontolysis. frontogenesis. occlusion.

overrunning.

An air mass is characterized by similar properties of __________ and __________ in any horizontal direction. temperature, pressure pressure, winds pressure, moisture winds, moisture temperature, moisture

temperature, moisture

When an upper-level low lies directly above a surface low: the surface low will probably weaken thunderstorms will develop a wave cyclone will begin to form the pressure of the surface low will decrease cyclogenesis will occur

the surface low will probably weaken

A stationary front does not move because: winds on both sides of the front are calm. the winds blow parallel to the front. the front is between high and low pressure. the winds blow against each other and are of equal strength.

the winds blow parallel to the front.

What type of weather front would be responsible for the following weather forecast: "Increasing high cloudiness and cold this morning. Clouds increasing and lowering this afternoon with a chance of snow or rain tonight. Precipitation ending tomorrow morning. Turning much warmer. Winds light easterly today becoming southeasterly tonight and southwesterly tomorrow." cold front warm front stationary front warm-type occluded front

warm front

For a surface storm system to intensify, the upper-level low (or trough) should be located to the __________ of the surface low. north south east west

west

Atmospheric shortwaves usually move __________ at a speed that is __________ than longwaves. east to west, faster west to east, faster east to west, slower west to east, slower

west to east, faster

According to the model of the life cycle of a wave cyclone, the storm system is normally most intense: as a frontal wave. as an open wave. as a stationary wave. when the system first becomes occluded.

when the system first becomes occluded.