convective inhibition

Convective inhibition indicates the amount of energy that will be required to force the cooler packet of air to rise.

The situation in which convective inhibition is measured is when layers of warmer air are above a particular region of air.

Primarily, it is the result of a cap, or convective inhibition (CIN/CINH).

An air parcel ascending from the near surface layer (mixed layer or boundary layer) must work through the stable layer of convective inhibition (CIN) when present.

Convective inhibition (CIN or CINH) is a numerical measure in meteorology that indicates the amount of energy that will prevent an air parcel from rising from the surface to the level of free convection.

CAPE is effectively positive buoyancy, expressed B+ or simply B; the opposite of convective inhibition (CIN), which is expressed as B-, and can be thought of as "negative CAPE".

This will remain as shallow, moist convection (small cumulus clouds) until breaking through the convective inhibition layer, after which DMC ensues as a parcel hits the LFC and enters the FCL, if thermal or mechanical forcing continues.