Which statement accurately describes how a weather radar depicts precipitation intensity on its display?

• A. Color shading or grayscale is not used for intensity
• B. Intensity is shown only as numerical values without color
• C. Precipitation intensity is represented by blinking patterns with no color change
• D. Color shading or grayscale, with brighter or warmer colors indicating heavier precipitation

Answer: (D)

Weather radar communicates how hard precipitation is falling by mapping echo strength to the display’s brightness or color. The stronger the signal return from a rain column or storm, the higher the reflectivity value, and the display uses a color ramp or grayscale to show that; lighter or cooler tones indicate lighter precipitation, while brighter or warmer tones indicate heavier precipitation. This quick visual cue lets a forecaster see at a glance where the heaviest rain or strongest storm is occurring. While numerical dBZ values are available, the pictorial color/brightness representation is the primary way intensity is shown, which is why choices using color shading or grayscale with brighter/warmer colors best describe how radar displays depict precipitation intensity.