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42 terms

Met1010 test 2 434-475

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Which air mass forms over North America only in summer?
cT
What type of air mass would be responsible for hot, dry summer weather in southern Arizona?
cT
A maritime polar air mass that reaches the Pacific Coast is:
Cool, Moist, and Conditionally Unstable
During winter, easterly winds along the front range of the Rocky Mountains provide excellent conditions for:
upslope snow
Along the boundary between continental polar and maritime tropical air masses, ___is often found
widespread precipitation and strominess
On a weather map, the transition zone between two air masses with sharply contrasting properties is marked by:
a front
The word "frontogenesis" on a weather map would mean that
a front is regenerating or strengthening
Continental tropical air masses are typically found in:
northern Mexico and the southwestern US
Fronts are associated with:
low pressure
The only indication on the station model of past weather conditions is the
temperature
A drylines is:
a dew point front and a boundary marking a strong horizontal change in atmospheric moisture
An upper-air front involves downward motion of the:
tropopause
When comparing an "average" cold front to an "average" warm front, which of the following is NOT correct?
generally, precipitation covers a much broader area with a cold front
Alternating lines of blue and red on a surface weather chart indicate:
a stationary front
A stationary front does not move because:
the winds blow parallel to the front
A true cold front on a weather map is always:
followed by cooler air
Which of the following is NOT correct concerning a cold front?
it is colored purple on a weather map
On a weather map, this front, drawn in blue, represents a region where colder air is replacing warmer air:
cold front
Before the passage of a cold front the pressure normally falls, and after the passage of a cold front the pressure normally
rises
Squall lines most often form ahead of a
cold front
In winter, thunderstorms are most likely to form along:
cold fronts
A "back door" cold front moving through New England would most likely have winds shifting from ___ to ___
east; west
A "back door" cold front describes which of the following situations?
a cold front that moves into New England from the Atlantic Ocean
A cold front that moves into New England from the east or northeast is called
a "back door" cold front
Which of the following is NOT correct concerning a warm front?
it has warm air ahead (in advance) of it
A halo around the sun or moon indicates that rain may be on the way because the halo indicates:
a warm front may be approaching
A frontal inversion would probably be best observed
with a warm front in winter
In winter, which sequence of clouds would you most likely expect to observe as a warm front with precipitation approaches your location?
cirrus, cirrostratus, altostratus, nimbostratus
The rising of warm air up and over cold air is called
overrunning
At a warm front, the warm air
rises and cools
During the winter as you travel toward a warm front, the most likely sequence of weather you would experience is:
snow, sleet, freezing rain, rain
On a weather map where cold air is replacing cool air, what type of front is drawn?
cold-type occluded front
Occluded fronts may form as
a cold front overtakes a warm front
A cold-type occluded front:
has cold surface air behind it
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
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
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."
warm front
What type of weather front would be responsible for the following weather forecast? "Cool today with rain becoming heavy by this afternoon. Slightly warmer tomorrow. Winds southeasterly becoming westerly to northwesterly by tomorrow morning."
warm-type occluded front
What type of weather front would be responsible for the following weather forecast? "Light rain and cold today with temperatures just above freezing. Southeasterly winds shifting to westerly tonight. Turning colder with rain becoming mixed with snow, then changing to snow."
cold-type occluded front
The polar front theory of a developing wave cyclone was conceived in
Norway
Which of the scientists below was not one of the meteorologists who helped develop the polar front theory of a developing wave cyclone?
C.G Rossby
On a surface weather map that shows an open wave cyclone, the warm sector can be observed:
ahead of an advancing cold front