TS are most common globally - Answer Over tropical land masses
to get a thunderstorm, we need each of the following three conditions - Answer Unstable
air, a lifting mechanism, and low, level moisture
over tropical oceans, most TS occur - Answer just before dawn
An air mass TS has mostly updrafts and surface flow toward the storm at the __________
stage - Answer cumulus
TS are most common over Iowa - Answer around sunset
In the US, most thunderstorms occur in____over____ - Answer Summer, florida
An air mass TS typically lasts - Answer 30-60 minuntes
Near a dissipating air mass TS with precipitation, the horizontal surface air flow near the
TS is tipically - Answer away from the TS
Cumulonimbus literally means - Answer heaped rain producing clouds
When flying at night the best way to be alerted that sever TS are with in 50 miles of me is
- Answer frequent lightning
The outer edge of the expanding cold air below a thunderstorm is called - Answer the
outflow boundry
TS over the desert southwest are most common during - Answer mid-afternoon
,This is because at the outer edge of the expanding cold air (near a TS we find the -
Answer gust front
For a multi-cell TS with low level flow from the south, new cells typically form - Answer
south of the mature cell
Severe super cell TS comprise about _____% of all TS - Answer 1%
Severe supercell convection is most common - Answer over the great plains during late
afternoon and evening in April-June
A shelf cloud is - Answer 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 - Answer have more vertical shear
what does the supercell have that a multicell storm lacks? - Answer rotation
For a sever supercell TS to form over the great plains, one would expect the 5,000 AGL
wind to be - Answer 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 - Answer moist, dry, strong
Supercell thunderstorms are most common - Answer 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 - Answer East
, The low-level jet commonly occurs at a level of around______ AGL and is strongest in the
______ - Answer 5,000ft, evening
A wall cloud is - Answer a rotating cloud hanging below the main base of a supercell
- In the wind profile of a supercell TS - Answer The DDD gets bigger and the velocity
increases
In a downdraft, cold air sinks, reaches the ground and spreads out horizontally. The
leading edge of the expanding cold air is called the_________ - Answer out flow boundry
The flanking line is a line of towering cumulus clouds on the ______ side of a _______
thunderstorm - Answer south, supercell
A squall line commonly forms - Answer 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 - Answer lighter
precipitation in a trailing stratiform region
Severe squall-line weather is most commonly found along the____edges of a cold frontal
band - Answer 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
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