IFR conditions

IFR (instrument flight rules) conditions

Weather conditions below the minimum allowed for flight under visual flight rules, or VFR.
References in periodicals archive ?
If the AIRMET(s) mention IFR conditions, a third IFR subtab line will be created to address relevant conditions in an AIRMET SIERRA (IFR conditions), AIRMET ZULU (for icing) or AIRMET TANGO (for turbulence).
An OTW display that is capable of representing the virtual environment through which the airplane is flying with realistic visual cues for day and night VFR as well as IFR conditions is required.
Their products increase situational awareness and reduce pilot workload, making it even easier and safer to fly in both VFR and IFR conditions.
Under IFR conditions, a pilot's ability to fly using visual cues is significantly impaired, so FAA regulations require that pilots navigate and orient the aircraft through reference to aircraft instruments.
Regardless of the forecast, I was apprehensive about filing a flight plan to a destination without a TACAN approach that was currently observing IFR conditions. My inclination at this point was to forget about St.
Recent introduction of sophisticated navigation and ordnance delivery systems designed for IFR conditions ...
The midmorning takeoff was in the rain with IFR conditions existing all along the coast.
The note about extending the departure leg in IFR conditions did not get covered.
Weather might include IFR conditions; widespread mountain obscuration; visibility; moderate turbulence or icing; sustained surface winds above 30 knots or non-convective low-level windshear potential below 2000 feet AGL.