Here is a list of school bus cancellations for Tuesday, Dec. 12, 2017:

Cancelled:

Grey Bruce County: Buses cancelled to Walkerton District and Sacred Heart High, and all buses cancelled into Teeswater, Lucknow, and Ripley. All schools are open.

Simcoe County North Zone: Buses cancelled to Elmvale, Midland, Penetanguishene, and Orillia

Operating normally today:

Durham Student Transportation: All buses running today but some delays possible

Peel District School Board: All buses running today

Halton Catholic District School Board: All buses running today

Toronto District School Board: All buses running today but some delays possible

Toronto Catholic District School Board: All buses running today but some delays possible

Waterloo Region District School Board: All buses running today

York Region District School Board: Buses are running today