METR 2603 Exam Questions & Answers 100%
Correct!2024
The pressure gradient force causes winds to blow from: - <<ANSWER>>Higher
pressure toward lower pressure
Clouds can form when an air parcel first - <<ANSWER>>rises and cools to its dew point
temperature
T/F: 80% of supercell thunderstorms produce tornadoes. - <<ANSWER>>False
T/F: A hook echo helps us visualize rotation in a tornado. - <<ANSWER>>False
T/F: In general, warm, moist boundary layer air is conducive to supercell formation. -
<<ANSWER>>True
T/F: Rising motion in a trough is usually strongest behind (usually to the west of) the
trough axis. - <<ANSWER>>False
The name for the cloud that helps us visualize the rising of warm, moist air over an
outflow boundary of a thunderstorm. - <<ANSWER>>Shelf Cloud
The type of radar data that gives us an approximation of wind speeds. -
<<ANSWER>>Radial Velocity
The type of radar display that shows us vertical cross- sections through weather
features like storms. - <<ANSWER>>Range-Heigth Indicator
A change in wind speed and/or direction with height above the ground. -
<<ANSWER>>Vertical Wind Sheer
The most common type of radar display. - <<ANSWER>>Plan Position Indicator
The most common type of rotating updraft in the Northern Hemisphere. -
<<ANSWER>>Mesocyclone
A measure of rotation in the air. - <<ANSWER>>Vorticity
, A radar reflectivity signature that indicates the formation of straight-line winds in an
MCS. - <<ANSWER>>Bow Echo
Convergence along the rear flank downdraft's outflow boundary produces new clouds
called the _____________. - <<ANSWER>>Flanking line
A measure of the amount of stability in the troposphere this prevents air parcels from
rising upward from the surface very easily. - <<ANSWER>>CIN
What qualifies a thunderstorm as a severe thunderstorm? - <<ANSWER>>- Wind speed
>= 58 mph
- Hail with diameter >= 1 in
- Tornado
What defines the cumulus stage of a thunderstorm? - <<ANSWER>>The cloud is an
updraft only. There is no precipitation or lightning & thunder.
What defines the mature stage of a thunderstorm? - <<ANSWER>>The storm now
contains both an updraft and a downdraft. Precipitation forms & falls. There is lightning
& thunder, as well as gusty winds.
What defines the dissipating stage of a thunderstorm? - <<ANSWER>>The updraft
decays as the downdraft falls through it and weakens it. Precipitation stops, and the
clouds evaporate.
What defines the formative stage of a squall line? - <<ANSWER>>Individual storms
form along a linear weather feature where rising motion is enhanced, such as along a
cold front. During this stage, individual storms are discernable as small pockets of
heavy precipitation, and they may produce lower-end severe weather.
What defines the intensifying stage of a squall line? - <<ANSWER>>Areas between
individual storms fill with heavy precipitation, so that individual storms are no longer
discernable. The cold pools and accompanying outflow boundaries from individual
storms merge into a single large cold pool and long outflow boundary. (Individual storms
may still be discernable on the southern end, which is the "younger" end of the squall
line.) The outflow boundary is coincident with the leading edge of the strongest winds
next to the surface, and spreads farther ahead of the heaviest precipitation.
What defines the mature stage of a squall line? - <<ANSWER>>The storm updrafts
begin to tilt backward under the weight of the rainfall, and light to moderate steady rain
begins to fall behind the heavier precipitation, which forms the "trailing stratiform
precipitation region." The heavier precipitation itself begins to weaken.
What defines the dissipating stage of a squall line? - <<ANSWER>>The storms weaken
and begin to break up. The trailing stratiform precipitation region widens, while the line
of heaviest precipitation weakens further.
Correct!2024
The pressure gradient force causes winds to blow from: - <<ANSWER>>Higher
pressure toward lower pressure
Clouds can form when an air parcel first - <<ANSWER>>rises and cools to its dew point
temperature
T/F: 80% of supercell thunderstorms produce tornadoes. - <<ANSWER>>False
T/F: A hook echo helps us visualize rotation in a tornado. - <<ANSWER>>False
T/F: In general, warm, moist boundary layer air is conducive to supercell formation. -
<<ANSWER>>True
T/F: Rising motion in a trough is usually strongest behind (usually to the west of) the
trough axis. - <<ANSWER>>False
The name for the cloud that helps us visualize the rising of warm, moist air over an
outflow boundary of a thunderstorm. - <<ANSWER>>Shelf Cloud
The type of radar data that gives us an approximation of wind speeds. -
<<ANSWER>>Radial Velocity
The type of radar display that shows us vertical cross- sections through weather
features like storms. - <<ANSWER>>Range-Heigth Indicator
A change in wind speed and/or direction with height above the ground. -
<<ANSWER>>Vertical Wind Sheer
The most common type of radar display. - <<ANSWER>>Plan Position Indicator
The most common type of rotating updraft in the Northern Hemisphere. -
<<ANSWER>>Mesocyclone
A measure of rotation in the air. - <<ANSWER>>Vorticity
, A radar reflectivity signature that indicates the formation of straight-line winds in an
MCS. - <<ANSWER>>Bow Echo
Convergence along the rear flank downdraft's outflow boundary produces new clouds
called the _____________. - <<ANSWER>>Flanking line
A measure of the amount of stability in the troposphere this prevents air parcels from
rising upward from the surface very easily. - <<ANSWER>>CIN
What qualifies a thunderstorm as a severe thunderstorm? - <<ANSWER>>- Wind speed
>= 58 mph
- Hail with diameter >= 1 in
- Tornado
What defines the cumulus stage of a thunderstorm? - <<ANSWER>>The cloud is an
updraft only. There is no precipitation or lightning & thunder.
What defines the mature stage of a thunderstorm? - <<ANSWER>>The storm now
contains both an updraft and a downdraft. Precipitation forms & falls. There is lightning
& thunder, as well as gusty winds.
What defines the dissipating stage of a thunderstorm? - <<ANSWER>>The updraft
decays as the downdraft falls through it and weakens it. Precipitation stops, and the
clouds evaporate.
What defines the formative stage of a squall line? - <<ANSWER>>Individual storms
form along a linear weather feature where rising motion is enhanced, such as along a
cold front. During this stage, individual storms are discernable as small pockets of
heavy precipitation, and they may produce lower-end severe weather.
What defines the intensifying stage of a squall line? - <<ANSWER>>Areas between
individual storms fill with heavy precipitation, so that individual storms are no longer
discernable. The cold pools and accompanying outflow boundaries from individual
storms merge into a single large cold pool and long outflow boundary. (Individual storms
may still be discernable on the southern end, which is the "younger" end of the squall
line.) The outflow boundary is coincident with the leading edge of the strongest winds
next to the surface, and spreads farther ahead of the heaviest precipitation.
What defines the mature stage of a squall line? - <<ANSWER>>The storm updrafts
begin to tilt backward under the weight of the rainfall, and light to moderate steady rain
begins to fall behind the heavier precipitation, which forms the "trailing stratiform
precipitation region." The heavier precipitation itself begins to weaken.
What defines the dissipating stage of a squall line? - <<ANSWER>>The storms weaken
and begin to break up. The trailing stratiform precipitation region widens, while the line
of heaviest precipitation weakens further.
