What does blowing snow refer to?

Blowing snow refers specifically to snow particles that are lifted and transported by the wind, leading to a reduction in visibility. When wind moves snowflakes that are already on the ground or airborne in the atmosphere, and this action decreases visibility to less than 6 nautical miles, it is classified as blowing snow. This phenomenon is significant in weather observations and can impact travel and safety conditions.

The concept is distinct from falling snow, as it involves the transport of snow rather than its descent from the clouds. It also specifically emphasizes the impact on visibility, which is a crucial factor in meteorology and aviation safety. Understanding this definition helps clarify how blowing snow can create hazardous conditions, particularly during winter weather events.