When blizzards blow

Blizzards can be particularly dangerous weather events, especially for the unprepared. People out in the storm are at risk for hypothermia and frostbite, and those inside have to worry about power and phone outages. Cars may get stuck on the highway, and pilots may feel unsure about landing a plane. Readers learn the severity of blizzards of the past, including 2010's "Snowmageddon," as well as how these blizzards form.