LOUISVILLE, Ky. (WDRB) -- A mix of freezing rain and snow that moved through Kentuckiana early Friday prompted dozens of school districts to cancel classes, including JCPS. 

With treacherous road conditions expected Friday afternoon, officials with JCPS and several other districts made the decision to cancel classes Thursday evening.

Classes at several local universities were also called off on Friday. 

Road conditions are expected to become hazardous by Friday afternoon with the possibility of accumulating snow. Winter storm warnings have issued for the western halves of Kentucky and Indiana through Saturday afternoon.

At least a dozen counties across Kentucky and southern Indiana have issued travel advisories, recommending only essential travel, such as to and from work or in emergency situations.

In Jeffersonville, traffic was moving smoothly Friday morning, with light rain falling -- but slowly switching over to sleet and rain. 

We checked the roads in Harrison County, Indiana, early Friday morning and afternoon as ice began coating parking lots and cars early Friday morning. The main roads in Corydon were mostly wet, but were beginning to freeze over by 11:30 a.m.  

The Harrison County highway department has 20 plows on the roads in addition to the fleet of state plows. Crews started salting early this morning and hope it will help the roads as conditions deteriorate in the afternoon hours.  

During an 11 a.m. news conference at the MetroSafe Emergency Operations Center, Friday, Louisville Mayor Greg Fischer said there have been fewer cars on the road, which has meant fewer accidents. He says the city's day shift snow team, consisting of 65 pieces of equipment, began salting roads at 7:30 a.m. before the temperatures began to drop.

The first pass of salting was nearly complete as of 11 a.m., Fischer said, adding that crews are prepared to continue working all night Friday and into the day on Saturday if necessary. He urged residents to stay home if at all possible, and to carry an emergency kit if you do have to venture out. 

The winter storm prompted Kentucky House and Senate leaders to call off Friday's legislative session. 

WDRB will provide coverage of the storm throughout the day. 

Copyright 2018 WDRB Media and the Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.