American Meteorological Society Certification Mesoscale Meteorology 3

Question 1

What is the role of the low-level jet (LLJ) in Great Plains severe weather?

Accepted Answer

It transports moisture northward and enhances wind shear for severe thunderstorms

Answer

It suppresses convection through warm advection

Answer

It creates cold air pooling in valleys

Answer

It drives upper-level divergence directly

Question 2

Tornadogenesis in supercells is most commonly associated with what process?

Accepted Answer

Downward transport of mesocyclone vorticity to the surface

Answer

Upper-level jet streak left exit region

Answer

Cold front passage only

Answer

High CAPE with no wind shear

Question 3

What is the Fujita Scale (F-scale) or Enhanced Fujita Scale (EF-scale) used to measure?

Accepted Answer

Tornado intensity based on wind damage indicators

Answer

Tornado path length

Answer

Rotation velocity in mesocyclones

Answer

Hail size distribution

Question 4

What is a cold pool in convective meteorology?

Accepted Answer

A pool of cold, dense air at the surface formed by evaporative cooling from precipitation

Answer

A cold air mass over the Arctic

Answer

The region of cold air above a thunderstorm anvil

Answer

A cold front boundary

Question 5

What is a heat burst in mesoscale meteorology?

Accepted Answer

Sudden warming and wind gusts at the surface caused by a precipitating downdraft descending into dry air

Answer

Extreme daytime heating over deserts

Answer

Sensible heat release from land after sunset

Answer

A warm frontal passage

Question 6

Which parameter best describes the potential for long-track tornadoes in supercells?

Accepted Answer

Significant Tornado Parameter (STP)

Answer

CAPE alone

Answer

K-Index

Answer

Total Totals Index