Cumulonimbus trivia

Cumulonimbus Mini Quiz

Test your knowledge with these top questions!

Question 1

Towering cumulonimbus clouds hold the unique distinction of producing what weather phenomenon?

These towering clouds are the only cloud type capable of generating lightning, caused by colliding ice crystals that build up massive static electrical charges.

Question 2

Rotating cumulonimbus clouds, called supercells, famously spawn what destructive event?

Supercells contain a deep, rotating updraft called a mesocyclone, which creates the ideal conditions for a funnel cloud to descend and touch the earth.

Question 3

Massive cumulonimbus clouds flatten at the top to form what distinctive shape?

The flat anvil shape occurs when rising air hits the tropopause, a stable atmospheric boundary that acts like a ceiling and forces the moisture to spread outward.

Question 4

Airline pilots actively steer clear of cumulonimbus clouds to avoid what severe danger?

The extreme turbulence is caused by violent vertical air currents inside the storm, with updrafts and downdrafts sometimes exceeding 100 miles per hour.

Question 5

The ultimate storm makers, cumulonimbus clouds uniquely generate what weather event?

These clouds are the only type to span all three atmospheric layers, providing the immense energy required to produce thunder and lightning.

Question 6

A mature cumulonimbus cloud hits the upper atmosphere and flattens into what shape?

The anvil shape forms when the cloud reaches the tropopause, a stable layer that acts as a ceiling, forcing the moisture to spread out horizontally.

Question 7

Cumulonimbus clouds pose a severe danger to passenger airplanes by creating what hazard?

Internal updrafts and downdrafts can exceed 50 miles per hour, creating vertical wind shear that can cause structural damage to an aircraft.

Question 8

Cumulonimbus clouds grow hailstones by repeatedly doing what to liquid water droplets?

Hailstones cycle through the cloud's updrafts, adding a new layer of ice each time they are pushed back into the freezing upper atmosphere.