ROCHESTER, N.Y. — Friday night features rain changing over to wet snow. At the same time, temperatures begin to plummet. Snowfall will only accumulate a few inches, but the rain from the day and the wet snow will quickly freeze, making roads, sidewalks and driveways very slippery overnight. If you are out, make sure you take it slow and watch your step! The weekend starts off much colder, with temperatures in the teens, and not going anywhere…