In soaring terminology, how would you describe cloud base and its relation to lift opportunities?

In soaring terminology, how would you describe cloud base and its relation to lift opportunities?

• A. The altitude at which clouds dissipate
• B. The height at which clouds form overhead due to saturated air, indicating potential lift below the base
• C. The maximum altitude of a glider
• D. The height at which the air becomes completely still

Answer: (D)

Cloud base is the height at which rising air cools to its dew point and clouds begin to form. This height tells you where the visible edge of the updrafts stops and the cloud starts. In soaring terms, you typically feel usable lift from the ground up to the cloud base, with thermals carrying you up toward that base and sometimes into the cloud itself. So cloud base marks the upper limit of the readily usable lift from the thermal, rather than being a place where lift disappears or where the air becomes still.

Cloud base is the height at which rising air cools to its dew point and clouds begin to form. This height tells you where the visible edge of the updrafts stops and the cloud starts. In soaring terms, you typically feel usable lift from the ground up to the cloud base, with thermals carrying you up toward that base and sometimes into the cloud itself. So cloud base marks the upper limit of the readily usable lift from the thermal, rather than being a place where lift disappears or where the air becomes still.