Abstract: A turbulence data circuit for use in an aircraft. The aircraft can include a radar system configured to transmit a first radio frequency wave and receive a second radio frequency wave and a display for receiving a display signal representative of turbulence. The aircraft can further include a flight management system configured to determine a phase of flight, an aircraft inertial/air data system configured to determine an altitude and an airspeed. The turbulence data circuit can include an interface for coupling to the radar system, the display, the flight management system, and the aircraft inertial/air data system. The turbulence data circuit can be configured to determine the display signal representative of turbulence based on at least one of the phase of flight, the altitude, the airspeed and the second radio frequency wave.

Abstract: A method of displaying areas of turbulent weather is disclosed. Data is processed representative of weather conditions within a predefined area. Weather conditions are displayed on a display. Turbulence is detected within the predefined area. A level of the detected turbulence is detected. First graphical elements are superimposed upon the display of weather conditions when the level of the detected turbulence is less than a predetermined amount. A second graphical element is displayed upon the display of weather conditions when the level of the detected turbulence is more than the predetermined amount.