Definition

A blizzard is a severe snowstorm caused by strong continuous winds of at least 56 km/h (35 mph) and lasting for a prolonged period of time – typically three hours or more. A ground blizzard is a weather condition where snow is not falling but loose snow on the ground is lifted and blown by strong winds. Its Meteorological Terminal Air Report (METAR) code is BLSN. If the snow remains below 8 feet (2 m), it is called drifting snow (METAR code DRSN).

Description