Convective Available Potential Energy (CAPE) is a measure of the instability of the atmosphere and defines the vertically integrated positive buoyancy of a rising parcel. It is a good indicator of general instability, and convection tends to be more vigorous with higher values.
|CAPE < 300:||Stable.|
|CAPE 300 to 1000:||Marginally unstable.|
|CAPE 1000 to 2500:||Moderately unstable.|
|CAPE 2500 to 3000:||Very unstable.|
|CAPE 3000 to 5000:||Extremely unstable.|
|CAPE > 5000:||Whoa Nelly!|
|Lifted Index (LI)||K-Index||CIN||Showalter Index||SWEAT||Total Totals|