2-55.
Wagner’s study of the 1000- to
500-hPa thickness as a predictor of
precipitation type in the United
States verified which of the
following statements?
1.
Critical thickness values
increase with increasing
altitude
2.
Critical thickness values
increase with decreasing
altitude
3.
Critical thickness values
decrease with increasing
altitude
4.
Critical thickness is
unaffected by increasing or
decreasing altitude
2-56.
During periods of normal winter
conditions,
how far upstream should
you look in forecasting a 24-hour
temperature?
1.
200 nm
2.
300 nm
3.
400 nm
4.
500 nm
2-57.
In what area of a blizzard should
you expect maximum snowfall?
1.
To the left of the storm’s
track
2.
To the right of the storm’s
track
3.
Along the storm’s track
4.
100 to 300 nm equatorward of
the storm’s track
2-58.
Which of the following is a
characteristic of a warm advection
type snowstorm?
1.
An occluded low-pressure center
to the east
2.
A strong, active low-pressure
center in the vicinity of the
maximum snowfall area
3.
The absence of a low-pressure
center in the vicinity of the
maximum snowfall area
4.
An unoccluded low-pressure
center to the east
2-59.
What type of snowstorm may occur
when a sharp, north-south oriented
cold front lies in a deep trough?
2-60.
Maximum snowfall at any one station
is of shortest duration if the
snowstorm is of what type?
1.
Blizzard
2.
Warm advection
3.
Post-cold frontal
4.
Major storm
2-61.
What 850-hPa level moisture
isopleth and isotherm are used as
the defining line for locating
areas of maximum snowfall in the
Great Lakes region of the United
States?
1.
The -10°C dewpoint isopleth and
the -3°C isotherm
2.
The -10°C dewpoint isopleth and
the 0°C isotherm
3.
The -5°C dewpoint isopleth and
the -3°C isotherm
4.
The -5°C dewpoint isopleth and
the 0°C isotherm
2-62.
Assume that yesterday the maximum
temperature was 15°F and the lapse
rate was stable; today, the lapse
rate has become unstable while sky
conditions have remained the same.
How will today’s temperature
compare with yesterday’s?
1.
It will be greater
2.
It will be the same
3.
It will be less
2-63.
all EXCEPT which of the following
characteristics are prerequisites
for a cold wave over the United
States?
1.
Strong northerly or
northwesterly flow develops
aloft over west central Canada
2.
A strong ridge exists over the
eastern portion of the United
States
3.
Intense southwesterly flow
develops over the eastern
Pacific ocean
4.
An extremely cold Arctic air
mass exists over west central
Canada
2-64.
A stationary long wave trough over
the Rocky mountains in the summer
always warns of a “heat wave” for
the eastern United states.
1.
Post-cold frontal
2.
Warm advection
3.
Major snowstorm
4.
Blizzard
1.
True
2.
False
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