1. Careers
You can opt-out at any time. Please refer to our privacy policy for contact information.

Discuss in my forum

instrument meteorological conditions

By

Definition: (DOD) Meteorological conditions expressed in terms of visibility, distance from cloud, and ceiling; less than minimums specified for visual meteorological conditions.

See also visual meteorological conditions.

Also Known As: IMC

©2014 About.com. All rights reserved.