A blizzard is a sever snow storm that has winds that reach up to 35 miles per hour or more and you cant see more than 1/4 of a mile for more than three hours. In order to avoid hypothermia during a blizzard make sure to stay hydrated and nourished. If you travel by car during a blizzard make sure you have a repair and first aid kit. The very first blizzard to be declared was during 1977 in upstate New York.
Blizzards are usually formed when a jet stream pitches very far south which allows the cold air to collide with the warm air. This creates a very strong storm. The deadliest blizzard ever recorded was in Iran during the year of 1972. Even though blizzards aren't as common as other storms like tornadoes or hurricanes they are still just as deadly if not more.
How do blizzards form? For a blizzard to form, warm air must rise over cold air. There are two ways that thiss can happen. Winds pull cold air toward the equator from the poles and bring warm air toward the poles from the equator. When warm air and cold air are brought together, a front is formed and then it starts to snow.