Blizzards are dangerous, but can be escaped. Blizzards are very heavy snowstorms. Blizzards usually have extremely heavy winds. Some winds are 45 miles per hour or more. The winds must be 35 miles per hour or greater to be considered a blizzard. Another criteria for a blizzard is that the temperature must be 32º Fahrenheit or lower. Temperatures above 32º would not make a blizzard possible because the snow would melt, making a slushy substance. A severe blizzard may have temperatures as low as 10º below zero.
Blizzards usually happen after unusually warm winter weather (a warm front). When a cold air mass from the Arctic moves to the Midwest United States, it creates a cold front. The cold front pushes the warm air up, creating the perfect conditions for the blizzard.