Plain English Meaning

Accidentally flying into a thunderstorm you didn't intend to enter, usually because you couldn't see it or didn't realize how bad it was. The goal then is to keep the wings level, hold a steady attitude, and get out as quickly and smoothly as possible.

Full Definition

An unplanned and unintentional flight into a thunderstorm or its associated severe weather, typically because the storm was not visible due to clouds, darkness, or embedded conditions, or because its severity was underestimated. Once inside, the aircraft is exposed to severe turbulence, hail, lightning, icing, heavy , and strong and . is to a , excursions within limits, avoid abrupt , and exit on the shortest consistent with .