Whiteout can happen at any elevation and is of three types: Clouds (including dense fog), snowfall, and a combination of both. Whiteouts can be localized and happen regardless of the weather forecast. Whiteouts vary in consistency, severity, and duration.
Mild whiteout: Ground, terrain features, and team are visible within 50–100 meters. Typically, cloud whiteouts are mild and allow visibility of the ground. The degree of forward visibility changes frequently enough to keep moving along the planned route.
