visual meteorological conditions


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visual meteorological conditions (VMC)

visual meteorological conditions (VMC)click for a larger image
Weather conditions in which visual flight rules apply. It is expressed in terms of visibility, ceiling height, and aircraft clearance from clouds along the path of flight. When these criteria do not exist, instrument meteorological conditions prevail and compliance with instrument flight rules is required. The criteria for VMC with respect to different airspaces are indicated in the illustration.
References in periodicals archive ?
The incident occurred at 12:10 Alaska Daylight Savings Time in night visual meteorological conditions with ten miles of visibility.
With plenty of room to work underneath, I began checking into Stony airspace, pulling my wingman into close and took vectors from Anchorage Center to descend to Visual Meteorological Conditions (VMC).
The Seahawk launched before noon and soon encountered changing weather conditions from marginal visual meteorological conditions (VMC) to areas of solid IMC.
Weather was visual meteorological conditions (VMC) at Nellis.
Maj Peck and Capt Colson were flying a routine T-38 training mission under visual meteorological conditions.
Over the past decade, the A-10 community has integrated night vision devices with updated night attack tactics, improving the effectiveness of a weapon system designed primarily for day, visual meteorological conditions.
Without the luxury of on-board weather radar, I took note of the A/C's decision to descend so that we could continue to fly in visual meteorological conditions.

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