During blizzard, it is very difficult to see the road. I haven't been driving in this extreme weather condition but a friend of mine did this almost every day during winter. If you live up north where snow and blizzard often occur during winter, it is very important that you will have emergency LED Light Bar mounted in the front of your car. It is very useful when you need to illuminate a specific area while you are riding.
I know LED Light Bar doesn't come cheap but if it helps your driving safer and easier during worse weather condition or very dark road, then it is worthy.