ATPL Canadian Meteorology, Radio Aids to Navigation, and Flight Planning (SAMRA) Practice Test

A darker shade on a monochrome weather radar typically signifies more intense weather conditions. In radar imagery, varying shades of gray are used to represent the intensity of precipitation and the strength of reflectivity. A darker shade indicates a higher level of reflectivity, which corresponds to heavier rain, snow, or even severe weather phenomena like thunderstorms.

The use of color and shading in radar visualization enables pilots and meteorologists to quickly assess weather conditions, allowing for informed decision-making regarding flight safety. The strength of the radar return is closely related to the size and concentration of precipitation particles, so areas showing darker shades are indicative of significant weather activity.