What distinguishes blowing snow from low drifting snow regarding visibility?

Blowing snow and low drifting snow are both weather phenomena that occur during winter conditions, but they have distinct characteristics that affect visibility. The correct choice highlights that blowing snow can reach significant heights, specifically 6 feet or greater, which is a crucial factor in determining its impact on visibility.

When snow is picked up from the ground by strong winds, it can be transported at considerable heights, leading to reduced visibility. This effect occurs because the snow particles are lifted into the air, creating a haze that obscures visibility over long distances, typically less than 7 miles. The significant height of 6 feet or more indicates a more severe condition where the snow is actively blowing around, contributing to dense snow clouds that adversely affect sight.

In contrast, low drifting snow tends to involve snow that is closer to the surface and does not rise as high, which can lead to different visibility conditions. This distinction is critical for those observing weather conditions, as it helps inform forecasts and safety measures during winter storms.

The other options do not correctly describe the characteristics or impacts on visibility associated with blowing or low drifting snow, which is why the information regarding the height of blowing snow is key to understanding these phenomena.