Convective Available Potential Energy

Convective available potential energy (CAPE) is a measure of atmospheric buoyant energy that can support convection.

Higher CAPE generally indicates greater potential for vigorous updrafts, but realized storm intensity also depends on triggers, moisture distribution, and vertical wind structure.

For model evaluation, CAPE is most useful when interpreted together with inhibition and observed precipitation behavior.

See also: convective inhibition, Cumulus convection schemes, Convective rain