What qualifies a blizzard?

Related questions

1. Why is a blizzard important?
2. Is Snow dangerous to drive on?
3. Is 1 inch of snow a lot?
4. How is snow measured?
5. Can you predict a blizzard?
6. What caused the Blizzard of 1978?
7. What country has the most blizzards?
8. How many people died in the Great Blizzard?
9. How much snow fell in the blizzard of 77?
10. How are blizzards named and classified?

Tags

1. #gusts
2. #visibility
3. #frequent
4. #equal
5. #period
6. #hours
7. #reduces
8. #which
9. #sustained
10. #blowing
11. #drifting
12. #winds
13. #blizzard
14. #prolonged
15. #three
16. #typically
17. #storm
18. #greater