Ceiling and Visibility PDF

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Ceiling and Visibility...

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Ceiling and Visibility Identifying the visibility of how far a pilot can see when flying as well as ceiling levels for how high a pilot can fly are crucial for determining safe flying conditions. Mission The primary mission for identifying Ceiling and Visibility is safety. There are specific flying conditions that determine when it’s safe to fly. Identifying them is the goal of the Pilot and Meteorologist involved. The Terminal Aerodome Forecasts (TAFs) are used to communicate these conditions and forecasts applicable to flying aircraft. There are two broad classifications of ceiling and visibility condition. The first is Visual Meteorological Conditions (VMC) with Visual Flight Rules (VFR) and a subdivision of Marginal Visual Flight Rules (MVFR). The second is known as Instrument Flight Rules (IFR) with rules that are defined by Instrument Flight Rules (IFR) with a subdivision of Low Instrument Flight Rules (LIFR). All these rules are categorized in the chart below found here as well. The Ceiling Height is measured in feet Above Ground Level (AGL). The visibility is measured in three quarters of a statute mile (SM). Ceiling Height (AGL) Ceiling > 3000ft 1000ft - 3000ft 500ft - 900ft

Visibility >5 SM 3-5 SM 1-3SM

Flight Category Visual Flight Rules (VFR) Marginal Visual Flight Rules (MVFR) Instrument Flight Rules (IFR)

Ceiling < 500ft...