Another Likely Day of School Bus Cancellations in Parts of Southern Ontario on Wednesday

Widespread snow squall activity off Lake Huron and Georgian Bay is creating hazardous travel conditions across the snowbelt and is likely to cause school bus cancellations on Wednesday.

Snow Squall Impacts Across Southern Ontario

Localized snowfall totals of up to 20 to 30 cm are possible in the most persistent bands by Wednesday. Gusty winds are contributing to significantly reduced visibility and blowing snow.

School Bus Cancellation Probabilities

Areas east of Lake Huron face the highest risk of school bus cancellations, with a 90 percent chance impacting regions covered by the Bluewater District School Board, and Huron County under the Avon Maitland District School Board. These areas are particularly vulnerable due to rural routes and potential whiteout conditions.

A 75 percent chance of cancellations is forecast for Perth County under the Avon Maitland District School Board, Dufferin County within the Upper Grand District School Board, and the Simcoe West and Simcoe North weather zones under the Simcoe County District School Board. The Simcoe County District School Board has demonstrated a higher threshold for cancellations this season.

Simcoe Central, Wellington County under the Upper Grand District School Board, and South Muskoka within the Trillium Lakelands District School Board are considered a toss-up, with conditions potentially allowing for buses to run despite snow squall warnings.

Prince Edward County under Tri-Board Student Transportation Services has a 50 percent chance of cancellations, as road conditions may remain questionable despite snowfall tapering off.

Lower Cancellation Risks

Middlesex and Oxford counties under the Thames Valley District School Board, the Simcoe South weather zone, Georgina within the York Region District School Board, North Muskoka under the Trillium Lakelands District School Board, the Parry Sound region under the Near North District School Board, and Belleville along with South Lennox and Addington under Tri-Board Student Transportation Services all have a slight chance, around 25 percent, of cancellations.

The Golden Horseshoe, Deep Southwestern Ontario and much of Eastern Ontario are expected to see minimal impacts, with conditions remaining manageable for buses to operate as normal.