Many people have never seen a Ground Blizzard. The sun is out and the sky is blue. But last night there was a couple of inches of powdery snow. And today the 30+mph wind is simply blowing that snow across the ground. Sometimes the blowing snow is fairly light, and it is easy to see the road. Other times it gets real heavy and visibility is reduced to about two feet in front of your windshield. These are very dangerous conditions to drive in.
What makes driving in this so very dangerous is that the conditions can change instantly. You can be driving in a clear area with good visibility at 50-60 MPH, and then the wind may shift or change and visibility will go from a quarter of a mile to FIVE FEET in an instant. It's like someone just pulled a white pillowcase over your head. Your body tells you that you are still moving forward, but the blinding snow is blowing sideways, or down, or up, giving you a serious case of vertigo.
Interstate 35 southbound near Albert Lea, MN