WX 301 Final Test Questions and
Answers 100% Pass
Globally, TS are most common - ✔✔Over tropical land masses
to get a thunderstorm, we need each of the following three conditions - ✔✔Unstable air,
a lifting mechanism, and low, level moisture
over tropical oceans, most TS occur - ✔✔just before dawn
An air mass TS has mostly updrafts and surface flow toward the storm at the
__________ stage - ✔✔cumulus
TS are most common over Iowa - ✔✔around sunset
In the US, most thunderstorms occur in____over____ - ✔✔Summer, florida
An air mass TS typically lasts - ✔✔30-60 minuntes
Near a dissipating air mass TS with precipitation, the horizontal surface air flow near
the TS is tipically - ✔✔away from the TS
Cumulonimbus literally means - ✔✔heaped rain producing clouds
when flying at night, the best way to be alerted that severe TS are within 50 miles of me
is - ✔✔frequent lightning
The outer edge of the expanding cold air below a thunderstorm is called - ✔✔the
outflow boundry
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,TS over the desert southwest are most common during - ✔✔mid-afternoon
At the outer edge of the expanding cold air (near a TS) we find the - ✔✔gust front
For a multi-cell TS with low level flow from the south, new cells typically form -
✔✔south of the mature cell
Severe super cell TS comprise about _____% of all TS - ✔✔1%
Severe supercell convection is most common - ✔✔over the great plains during late
afternoon and evening in April-June
A shelf cloud is - ✔✔a shelf-like cloud that forms above a gust front in the updraft south
of a multi-cell TS
Compared with air mass TS, multi and supercell TS - ✔✔have more vertical shear
what does the supercell have that a multicell storm lacks? - ✔✔rotation
For a sever supercell TS to form over the great plains, one would expect the 5,000 AGL
wind to be - ✔✔190/45
Severe convection is most likely when the atmosphere is warm and ____near the surface
and cold and _____dry aloft, with ____vertical wind shear - ✔✔moist, dry, strong
Supercell thunderstorms are most conmon - ✔✔in the warm sector, east of the cold
front
A supercell storm is embedded in an average tropospheric flow from 230 the storm will
move to the - ✔✔East
The low-level jet commonly occurs at a level of around______ AGL and is strongest in
the ______ - ✔✔5,000ft, evening
A wall cloud is - ✔✔a rotating cloud hanging below the main base of a supercell
COPYRIGHT © 2025 BY BRITTIE DONALD, ALL RIGHTS RESERVED 2
, In the wind profile of a supercell TS - ✔✔The DDD gets bigger and the velocity
increases
In a downdraft, cold air descends, hits the ground and spreads out horizontally. The
leading edge of the expanding cold air is called the_________ - ✔✔out flow boundry
The flanking line is a line of towering cumulus clouds on the ______ side of a _______
thunderstorm - ✔✔south, supercell
A squall line commonly forms - ✔✔along the dry line east of the cold front or along the
cold front
West of the strongest squall-line precipitation, I would most likely find - ✔✔lighter
precipitation in a trailing stratiform region
Severe squall-line weather is most commonly found along the____edges of a cold
frontal band - ✔✔eastern and southern
A Doppler radar measures - ✔✔precipitation intensity and air speed to/from the radar
Mesoscale convective complexes form in _____ beneath______ - ✔✔July-September, and
upper level ridge
Mesoscale convective complexes over the US are most common - ✔✔over the great
plains in July/August
The most likely vertical wind profile associated with a Mesoscale convective complex is
- ✔✔moderate southerly at the surface, lighter variable winds higher up
Tornadoes are most common in (month range) - ✔✔April to June
Which of the following phenomena are not associated with tornados - ✔✔air mass TS
COPYRIGHT © 2025 BY BRITTIE DONALD, ALL RIGHTS RESERVED 3
Answers 100% Pass
Globally, TS are most common - ✔✔Over tropical land masses
to get a thunderstorm, we need each of the following three conditions - ✔✔Unstable air,
a lifting mechanism, and low, level moisture
over tropical oceans, most TS occur - ✔✔just before dawn
An air mass TS has mostly updrafts and surface flow toward the storm at the
__________ stage - ✔✔cumulus
TS are most common over Iowa - ✔✔around sunset
In the US, most thunderstorms occur in____over____ - ✔✔Summer, florida
An air mass TS typically lasts - ✔✔30-60 minuntes
Near a dissipating air mass TS with precipitation, the horizontal surface air flow near
the TS is tipically - ✔✔away from the TS
Cumulonimbus literally means - ✔✔heaped rain producing clouds
when flying at night, the best way to be alerted that severe TS are within 50 miles of me
is - ✔✔frequent lightning
The outer edge of the expanding cold air below a thunderstorm is called - ✔✔the
outflow boundry
COPYRIGHT © 2025 BY BRITTIE DONALD, ALL RIGHTS RESERVED 1
,TS over the desert southwest are most common during - ✔✔mid-afternoon
At the outer edge of the expanding cold air (near a TS) we find the - ✔✔gust front
For a multi-cell TS with low level flow from the south, new cells typically form -
✔✔south of the mature cell
Severe super cell TS comprise about _____% of all TS - ✔✔1%
Severe supercell convection is most common - ✔✔over the great plains during late
afternoon and evening in April-June
A shelf cloud is - ✔✔a shelf-like cloud that forms above a gust front in the updraft south
of a multi-cell TS
Compared with air mass TS, multi and supercell TS - ✔✔have more vertical shear
what does the supercell have that a multicell storm lacks? - ✔✔rotation
For a sever supercell TS to form over the great plains, one would expect the 5,000 AGL
wind to be - ✔✔190/45
Severe convection is most likely when the atmosphere is warm and ____near the surface
and cold and _____dry aloft, with ____vertical wind shear - ✔✔moist, dry, strong
Supercell thunderstorms are most conmon - ✔✔in the warm sector, east of the cold
front
A supercell storm is embedded in an average tropospheric flow from 230 the storm will
move to the - ✔✔East
The low-level jet commonly occurs at a level of around______ AGL and is strongest in
the ______ - ✔✔5,000ft, evening
A wall cloud is - ✔✔a rotating cloud hanging below the main base of a supercell
COPYRIGHT © 2025 BY BRITTIE DONALD, ALL RIGHTS RESERVED 2
, In the wind profile of a supercell TS - ✔✔The DDD gets bigger and the velocity
increases
In a downdraft, cold air descends, hits the ground and spreads out horizontally. The
leading edge of the expanding cold air is called the_________ - ✔✔out flow boundry
The flanking line is a line of towering cumulus clouds on the ______ side of a _______
thunderstorm - ✔✔south, supercell
A squall line commonly forms - ✔✔along the dry line east of the cold front or along the
cold front
West of the strongest squall-line precipitation, I would most likely find - ✔✔lighter
precipitation in a trailing stratiform region
Severe squall-line weather is most commonly found along the____edges of a cold
frontal band - ✔✔eastern and southern
A Doppler radar measures - ✔✔precipitation intensity and air speed to/from the radar
Mesoscale convective complexes form in _____ beneath______ - ✔✔July-September, and
upper level ridge
Mesoscale convective complexes over the US are most common - ✔✔over the great
plains in July/August
The most likely vertical wind profile associated with a Mesoscale convective complex is
- ✔✔moderate southerly at the surface, lighter variable winds higher up
Tornadoes are most common in (month range) - ✔✔April to June
Which of the following phenomena are not associated with tornados - ✔✔air mass TS
COPYRIGHT © 2025 BY BRITTIE DONALD, ALL RIGHTS RESERVED 3
