What does the acronym SN stand for in the context of weather phenomena?

The acronym SN in the context of weather phenomena stands specifically for "Snow." It is used in meteorological reports and observations to indicate the presence of snow, which is an important aspect of weather conditions, particularly in relation to forecasting and aviation operations. Accurate identification of SN is crucial for pilots and those involved in aviation safety, as snow can significantly impact aircraft performance and runway conditions.

While "Snow Grains" might seem relevant, it is a specific type of precipitation that also involves snow but is not indicated by the acronym SN in standard meteorological terminology. Understanding the distinction and standardized terms aids in effective communication and safety in aviation operations.