St Louis: commute last night: 30's crusty slush. I took the light rail to within 3 miles of home then rode bicycle in the tire tracks home. The tires on my commute bike were most ideal for a 1 inch crusty slush with frosting of snow. Front tire has a square waffle pattern which really dug into it. The only problem I had was both der freezing, unable to shift. Light auto traffic was not moving much faster than me.
8pm last night it started raining on top of the slush. This morning (Fri) 28F and everything is frozen. 400,000 without power in the region. Trees and lines are all iced over and creaking in the gusty wind. Light rail is down. Local streets are pretty icey. I might give it a try.