A couple years ago I had to go to Reno NV from MN to trailer a truck I bought back home. Traveling on I-80 through Wyoming in the late part of January was quite scary. Fresh blowing snow made it a bit sketchy on the way out with an empty trailer. On the way back I was trying to get through the whole state of WY during daylight hours. Snow covered roads with occasional black strips of asphalt that I would try to keep my tires on. It got dark before I made it to Laramie and the blowing snow was huge flakes that my headlights were illuminating so much that it made it near impossible to see the road. I had to ignore the snowflakes and totally concentrate on the semi taillights a half mile ahead of me so that I had some idea where the road was and where it was taking me. White knuckle driving big time!