Wednesday morning/midday: All Clear
Wednesday afternoon/evening: Light snow/sleet begins in the west and spreads toward Louisville as snow. Under an inch of accumulation expected.
Early Thursday morning: Snow switches over to sleet and freezing rain, becoming mostly freezing rain as the morning wears on. The morning commute will be a royal mess in Louisville. Based on the forecast models and guidance I'm seeing right now, most schools should be closed or delayed on Thursday due to the treacherous driving conditions on Thursday morning. Areas north of Scottsburg, IN should have snow throughout the entire event and I would not rule out a couple inches of accumulation up that way.
Thursday afternoon: Near and south of the Ohio River should see freezing rain end from west to east in the early afternoon hours. There could be a few snowflakes as temperatures aloft cool down on the west side of the low. Again, Southern Indiana from Scottsburg northward should stay with snow and possibly a little sleet as this system pulls out of the area.
We'll see how this one plays out. The NWS in Louisville will upgrade the Winter Storm WATCH to either a warning or Ice Storm Warning at some point later today and I'll post the details of that on Twitter and Facebook immediately. Should any significant changes occur in the forecast, I'll post those on the blog.