Quick Facts
- Type
- Atmospheric Phenomenon
- Definition
- A column of sinking air within or near a convective cell
- Used By
- Pilots
Definition#
A downdraft is a localized column of sinking air, typically associated with thunderstorms, rain shafts, or mountain waves. Downdraft velocities can exceed 2,000–3,000 ft/min in mature thunderstorms.
Why It Matters Operationally#
Downdrafts cause sudden altitude loss and performance degradation. Near the ground, they are especially dangerous during approach and takeoff. Microbursts are an extreme form of downdraft.