ARINC 708 is a specification for airborne pulse Doppler weather radar systems primarily found on commercial aircraft.

The Weather Radar protocol consists of 1600-bit ARINC-708 words, which, when interpreted and plotted together, form a picture of weather patterns in the surrounding area. The various weather conditions are indicated by the colors displayed.

The picture is formed as follows: emanating from the center of a circle, a single radius line at a time is drawn, where each radius line is the data from a single ARINC-708 word.