Microbursts are defined as which of the following?

Microbursts are defined as which of the following?

• A. Large, slow gusts of warm air.
• B. Updrafts with circular motion.
• C. Small, very intense downward winds.
• D. Wind shear at high altitude.

Answer: (C)

Microbursts are small, very intense downward winds. They originate from a strong downdraft in a thunderstorm, with air accelerating downward and striking the ground. When that air hits the surface, it spreads outward in all directions, creating powerful gusts that can change speed and direction quickly over a small area. This surface outflow is what makes microbursts so dangerous, especially for drones, because a sudden, strong gust can overwhelm stability and cause rapid loss of control or drift. The other descriptions don’t fit the phenomenon. Large, slow gusts aren’t microbursts because microbursts are rapid and concentrated, not gradual. Updrafts with circular motion describe rotating air structures rather than the abrupt, ground-reaching outflow. Wind shear at high altitude refers to variation with height aloft, whereas microbursts are defined by intense winds at the surface caused by a descending air column.

Microbursts are small, very intense downward winds. They originate from a strong downdraft in a thunderstorm, with air accelerating downward and striking the ground. When that air hits the surface, it spreads outward in all directions, creating powerful gusts that can change speed and direction quickly over a small area. This surface outflow is what makes microbursts so dangerous, especially for drones, because a sudden, strong gust can overwhelm stability and cause rapid loss of control or drift.

The other descriptions don’t fit the phenomenon. Large, slow gusts aren’t microbursts because microbursts are rapid and concentrated, not gradual. Updrafts with circular motion describe rotating air structures rather than the abrupt, ground-reaching outflow. Wind shear at high altitude refers to variation with height aloft, whereas microbursts are defined by intense winds at the surface caused by a descending air column.