Quick Facts
- Type
- Atmospheric Phenomenon
- Definition
- A localized current of rising air, found in thermals, along fronts, and withi...
- Used By
- Pilots
Definition#
An updraft is a current of rising air caused by surface heating, frontal lifting, orographic lifting, or convergence. Updrafts are the engine that drives cumulus cloud growth and thunderstorm development.
Why It Matters Operationally#
Strong updrafts inside thunderstorms can exceed 6,000 ft/min, making the interior of CBs extremely hazardous. Moderate updrafts cause positive G-loads and altitude gains during cruise.