What color on a weather radar indicates the most severe rainfall?

In weather radar systems, colors are used to represent different intensities of precipitation. The color red is typically associated with the most severe rainfall, indicating heavy downpours or even severe weather conditions like thunderstorms. The intensity of the red color suggests that significant amounts of rain are falling in that area, which could potentially pose risks to aviation safety, such as turbulence, wind shear, or low visibility.

Green generally indicates lighter precipitation, while yellow represents moderate rain. Purple can sometimes indicate extreme turbulence or hail, depending on the radar's specifications, but red consistently signifies the highest intensity of rainfall on most radar systems, making it the most critical color for pilots to monitor. Understanding these color codes is essential for effective decision-making in flight operations, particularly during adverse weather conditions.