How do blizzards form?

A blizzard requires three things to form: temperatures below freezing at ground level and in the clouds to allow snow to form, enough moisture to allow clouds and eventually snow to form, and a mass of warm air rising over a mass of cold air that creates strong winds. read more

In order for a blizzard to form you need three things: the air needs to be cold at the surface, the atmosphere has to have a lot of moisture, and you need a good amount of lift to cause the warm air to rise over cold air. read more

Warm, rising air is needed to form clouds and cause precipitation. For a blizzard to form, warm air must rise over cold air. There are two ways that this may happen. read more