This morning I had an interesting experience. My tires were obviously slipping on the road. It has recently snowed (two days ago) and the roads are pretty clear.
When I stopped, I realized the tires were pretty packed with snow amongst the treads. I've never had this happen before to the point where it was noticeable. After a while driving on more "dry" roads the tires cleared off.
Is there any way to avoid this? I'm guessing it was because the temperatures were so low (around -15F) that this happened. I think had there been more snow on the roads the tires would not have been cleaned off and caused a lot more traction issues.