301.
The air masses that have the greatest influence on weather conditions in the Midwestern United States are:
A
cP and mT
B
mP and cP
C
cT and cP
D
mP and mT
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The air masses that have the greatest influence on weather conditions in the Midwestern United States are:
cP and mT
mP and cP
cT and cP
mP and mT
The air mass type most likely to form thunderstorms is
mT
mP
cT
cA
Since detection and tracking of hurricanes is now quite accurate, why does damage from these storms continue to increase?
poor forecasts of landfall area
hurricane intensity is greater
changes in tidal patterns
continued development of coastal areas
Over the last 20 years, which of these has caused the fewest weather related deaths in the U.S.?
lightning
floods
tornadoes
hurricanes
On a weather map,..................fronts are shown with triangular points on one side of the front and semicircles on the other.
warm
cold
occluded
stationary
Inside of a cloud, how do the air temperature and the dew point compare to one another?
they are equal
air temperature exceeds dew point
dew point exceeds air temperature
there is no consistent relationship
Hygroscopoic nuclei may be formed from
particles of dust
nitric acid particles
smoke from forest fires
all of the above
Hurricanes generally are:
larger than tornadoes
smaller than midlatitude cyclones
areas of heavy rainfall and strong winds
all of these
Hurricanes and midlatitude cyclones are similar in that:
both are areas of low pressure
both have conspicuous surface fronts
both are most common and well-developed in the winter season
both form in the trade-wind belt
Heat lightning:
is brighter than ordinary lightning
is also called ball lightning
occurs more than 20 kilometers from the person observing it
is actually a display of the northern lights
Freezing rain (ice storm) or sleet occurs when
upper air is cold and surface air is warm
both surface and upper air are cold
both surface and upper air are warm
upper air is warm and surface air is cold
During which of the time spans listed below should hurricane formation in the North Atlantic be at a peak?
January-February
April-May
August-September
November-December
Downdrafts totally dominate the.......................in the development of a thunderstorm.
cumulus stage
mature stage
dissipating stage
Downdrafts and updrafts found side by side relate to the.......................in the development of a thunderstorm.
cumulus stage
mature stage
dissipating stage
Deserts such as the Great Basin, Gobi, and Takla Makan are examples of:
chinook deserts
subtropical deserts
rain shadow deserts
monsoon deserts
Compared to other types of fronts, the weather associated with a cold front usually
covers more area
is less violent but of longer duration
involves less precipitation
is more violent but of shorter duration
Clouds are classified and named according to their altitude and
water content
temperature
size of droplets in the cloud
form or appearance
Clouds and precipitation form in the air primarily due to
moisture being added to the air
air being cooled as it rises
excessive numbers of hygroscopoic nuclei
release of latent heat
Cloud seeding with silver iodide is based on the
Bergeron process
collision-coalescence process
both a and b
none of these
Characteristics of an air mass source region include
sharp temperature contrasts
high elevation
uniformity of temperature and moisture
jet stream winds aloft