Glider Instructor Practice Test

The situation tests how long the air mass pattern lasts once a front is in place. When a front is stationary, the boundary doesn’t move, so the same two air masses sit over the area for several days. Behind the boundary, the air mass tends to be relatively uniform and, with daily heating, can generate repeated lift opportunities each afternoon. That combination—persistent conditions plus daytime heating—gives several good soaring days in a row. In contrast, moving fronts bring quick changes. A warm front often brings increasing moisture and cloudiness, followed by a shift in the air mass after it passes, which can interrupt the same-day lift. A cold front brings stronger winds and more abrupt changes, often disrupting lift for a while. An occluded front blends these effects and generally yields unsettled weather rather than steady, multi-day soaring potential.