A turbulence cloud is essentially a cloud where significant air movement, specifically up- and downdrafts, causes turbulence.
According to BBC Weather's Simon King, a former RAF officer, turbulence in clouds stems from these chaotic air movements. While much of this turbulence can be mild, larger clouds, particularly cumulonimbus thunderstorm clouds, can generate moderate to severe turbulence.
In summary:
- Cause: Up- and downdrafts within the cloud.
- Intensity: Can range from mild to severe.
- Example: Cumulonimbus thunderstorm clouds are notorious for causing significant turbulence.
