On snowy days, like today, I get up around 4 a.m. to do weather closings. Yeah, someone has to do these things in radio and TV. And, luckily, my boss goes in to work about the same time and can gauge the road conditions for me. He drives a Camaro so if he can make it in (which is ALWAYS), I can make it in.
If you don't have your own personal road condition consultant, here's some resources from the Indiana Department of Transportation that you might find useful.