Ceiling Definition Aviation

Clouds are reported as broken when five eighths to seven eighths of the sky is covered with clouds.

Ceiling definition aviation. The height above the ground or water of the base of the lowest layer of cloud below 6 000 metres 20 000 feet covering more than half the sky. A ceiling layer is not designated in the metar code. Ceiling at your intended destination may be defined as the lowest broken or overcast cloud layer.

If the sky is totally obscured height of vertical visibility is used as the ceiling. Report an issue with this definition. The height of the lowest layer of clouds above the surface that are either broken or overcast but not thin but since metar and speci observations don t include the term thin anything reported as broken or overcast is treated as a ceiling.

Ceiling means the height above the earth s surface of the lowest layer of clouds or obscuring phenomena that is reported as broken overcast or obscuration and not classified as thin or partial. Faa federal aviation regulations cfr 14 part 1. Ceiling is not specifically reported as part of the metar meteorological aviation report used for flight planning by pilots worldwide but can be deduced from the lowest height with broken bkn or overcast ovc reported.

When federal air regulations refer to ceilings for weather minimums the faa defines a ceiling as. Ceiling for aviation purposes a ceiling is the lowest layer of clouds reported as being broken or overcast or the vertical visibility into an obscuration like fog or haze. Your forecaster will provide insights regarding expected changes to ceilings as well as other weather events such as fog is expected to move in out of your destination.

Also there is no provision for reporting thin layers in the. Canadian force s base. With respect to aircraft performance a ceiling is the maximum density altitude an aircraft can reach under a set of conditions as determined by its flight envelope.

The absolute celing is the highest altitude at which the aircraft can maintain level flight. Service ceiling also means an aircraft s density altitude at which its maximum rate of climb is lower or equal to 100 feet per minute.