GlossaryWeather
WeatherInstrument Meteorological Conditions (IMC)
Also: IMC weather
Weather below the minimums for visual flight, so poor in visibility, cloud clearance, or ceiling that flight must be conducted under instrument flight rules.
“Meteorological conditions expressed in terms of visibility, distance from clouds, and ceiling less than the minimums specified for visual meteorological conditions, requiring operations to be conducted under IFR.”
Tested on
Practice with