WX301 EXAM 3 LATEST UPDATE
Globally, where are TS are most common? - ANSWER over tropical land masses
to get a TS what three conditions are needed? - ANSWER unstable air, a lifting
mechanism, and low-level moisture
over tropical oceans, most TS occurs at what time? - ANSWER before dawn
An air mass thunderstorm has mostly updrafts and surface winds flowing toward
the storm until which stage? - ANSWER Cumulus
In Iowa, what time of day is TS most common? - ANSWER around sunset
In the US which state has the most TS? In which season do they occur? -
ANSWER Florida, Summer
How long does an air mass thunderstorm usually last? - ANSWER 30-60 minutes
Near a dissipating air mass thunderstorm with precipitation, is the horizontal
surface airflow near the TS flowing toward or away from the storm? - ANSWER
Away from the TS
What is the exact translation for Cumulonimbus? - ANSWER Heaped
rain-producing clouds
What is the best way to be alerted of a TS within 50 miles at night? - ANSWER
Frequent lightning
Over the desert southwest, what time of the day is a TS most common? - ANSWER
Mid-afternoon
What is the outer edge of an expanding cold air below a thunderstorm called? -
ANSWER The out-flow boundary
What kind of front is at the outer edge of the expanding cold air? - ANSWER
Gust's front
For a multi-cell TS with low-level flow from the south, where do new cells usually
form? - ANSWER South of the mature cell
, What percentage of all TS do super-cell TS usually comprise? - ANSWER 1&
Where in the US, what time of day, and in which months, is super-cell convection
most common? - ANSWER Over the great planes, in the late afternoon/evening,
between April-June
What is a shelf cloud? Where does it form? - ANSWER A shelf cloud is a cloud
that forms above the gust front, in front of the updraft south of a multi-cell TS
What do multi cell and super cell TS have more of than an air mass TS? -
ANSWER More vertical wind shear
What does a super cell TS have that a multi cell TS does not have? - ANSWER
rotation
For a TS to form over the great plains, what are the winds at 5,000 AGL? -
ANSWER 190/45
Severe convection is most likely when the atmosphere is warm and ___ near the
surface, and cold and ___ aloft, with _____ vertical wind shear - ANSWER moist,
dry, strong
In what sector are super-cell TS most common? Where are super-cell TS in relation
to a cold front? - ANSWER In the warm sector, East of a cold front
In which direction will a super-cell TS move if it is embedded in an average
tropospheric flow from 230 degrees? - ANSWER The east
Globally, where are TS are most common? - ANSWER over tropical land masses
to get a TS what three conditions are needed? - ANSWER unstable air, a lifting
mechanism, and low-level moisture
over tropical oceans, most TS occurs at what time? - ANSWER before dawn
An air mass thunderstorm has mostly updrafts and surface winds flowing toward
the storm until which stage? - ANSWER Cumulus
In Iowa, what time of day is TS most common? - ANSWER around sunset
In the US which state has the most TS? In which season do they occur? -
ANSWER Florida, Summer
How long does an air mass thunderstorm usually last? - ANSWER 30-60 minutes
Near a dissipating air mass thunderstorm with precipitation, is the horizontal
surface airflow near the TS flowing toward or away from the storm? - ANSWER
Away from the TS
What is the exact translation for Cumulonimbus? - ANSWER Heaped
rain-producing clouds
What is the best way to be alerted of a TS within 50 miles at night? - ANSWER
Frequent lightning
Over the desert southwest, what time of the day is a TS most common? - ANSWER
Mid-afternoon
What is the outer edge of an expanding cold air below a thunderstorm called? -
ANSWER The out-flow boundary
What kind of front is at the outer edge of the expanding cold air? - ANSWER
Gust's front
For a multi-cell TS with low-level flow from the south, where do new cells usually
form? - ANSWER South of the mature cell
, What percentage of all TS do super-cell TS usually comprise? - ANSWER 1&
Where in the US, what time of day, and in which months, is super-cell convection
most common? - ANSWER Over the great planes, in the late afternoon/evening,
between April-June
What is a shelf cloud? Where does it form? - ANSWER A shelf cloud is a cloud
that forms above the gust front, in front of the updraft south of a multi-cell TS
What do multi cell and super cell TS have more of than an air mass TS? -
ANSWER More vertical wind shear
What does a super cell TS have that a multi cell TS does not have? - ANSWER
rotation
For a TS to form over the great plains, what are the winds at 5,000 AGL? -
ANSWER 190/45
Severe convection is most likely when the atmosphere is warm and ___ near the
surface, and cold and ___ aloft, with _____ vertical wind shear - ANSWER moist,
dry, strong
In what sector are super-cell TS most common? Where are super-cell TS in relation
to a cold front? - ANSWER In the warm sector, East of a cold front
In which direction will a super-cell TS move if it is embedded in an average
tropospheric flow from 230 degrees? - ANSWER The east
