What encoding would indicate light snow in the reporting system?

In the Limited Aviation Weather Reporting System (LAWRS), the coding for snow conditions is crucial for pilots and meteorologists to understand the severity of weather phenomena. The encoding that represents "light snow" is denoted by a specific prefix. In this case, the correct code for light snow is indicated by a single negative sign followed by "SN" (which stands for snow).

The negative sign is used to denote light intensity for certain weather phenomena, including snow. Therefore, when you see "-SN," it denotes light snow conditions specifically. This is a standard convention in meteorological reporting to categorize the intensity of weather occurrences, allowing for quick and effective communication of critical weather conditions.

In contrast, other codes like "SN" would represent snow without indicating intensity, while "+SN" would suggest heavy snow. The encoding "+SHSN" denotes heavy snow showers, which is distinct from light snow. Understanding these codes is vital for accurate interpretation of weather reports in aviation safety assessments.