Plain English Meaning

Flying into a thunderstorm. The word is used in handbooks to describe what to do if you end up inside one, and how to handle the aircraft until you get out the other side.

Full Definition

The act of flying an aircraft into or through a thunderstorm cell. In instrument flying, the term refers to an inadvertent or unavoidable entry into a thunderstorm and the procedures used to fly through it as safely as possible — including configuring the aircraft for turbulence, holding a steady attitude, accepting altitude excursions, and maintaining a constant heading to exit the storm by the shortest route.

Context Anchor

Used in instrument flying guidance for an inadvertent thunderstorm encounter, when avoiding the storm is no longer possible.