What is cloud ceiling?

Cloud ceiling refers to the lowest height at which the base of clouds cover more than half of the sky. It is an important factor for aviation as it can affect visibility and the safety of aircraft during take-off and landing. Cloud ceilings are typically measured in feet above ground level and are reported in aviation weather reports and forecasts. A low cloud ceiling can result in flight delays and cancellations, while a high cloud ceiling indicates better weather conditions for flying. Meteorologists use various instruments and techniques to determine cloud ceilings, including satellite imagery, radar, and weather balloons.