GEOLOGY

Detailed explanation-1: -What Is a Blizzard? The National Weather Service defines a blizzard as a storm with large amounts of snow or blowing snow, winds greater than 35 mph (56 kph), and visibility of less than ¼ mile (0.4 km) for at least three hours. Some blizzards, called ground blizzards, have no falling snow.

Detailed explanation-2: -To be categorized as a blizzard, the storm must last for at least three hours and produce a large amount of falling snow. Blizzards also have winds measuring over 56 kilometers (35 miles) per hour. These winds cause a large volume of snow to blow around in the air and near the ground, decreasing visibility.

Detailed explanation-3: -A blizzard is a severe snowstorm characterised by low visibility and strong sustained winds lasting for a very long period of time usually around three or four hours. A weather condition where there is no snow but loose snow on the ground is lifted and blown by strong winds is known as a ground blizzard.

Detailed explanation-4: -Blizzards are dangerous winter storms that are a combination of blowing snow and wind resulting in very low visibilities. While heavy snowfalls and severe cold often accompany blizzards, they are not required. Sometimes strong winds pick up snow that has already fallen, creating a ground blizzard.

Detailed explanation-5: -Officially, the National Weather Service defines a blizzard as a storm which contains large amounts of snow OR blowing snow, with winds in excess of 35 mph and visibilities of less than 1/4 mile for an extended period of time (at least 3 hours).