A large, fast-moving winter storm is expected to sweep across much of southern and eastern Ontario on Wednesday, bringing widespread snowfall, strong winds and hazardous travel conditions.
According to Environment Canada, the system — a clipper moving in from the Prairies — is forecast to deliver five to 10 centimetres of snow across a broad region. Winds of 40 to 60 km/h are also expected, which could reduce visibility and worsen driving conditions.
Meteorologist Geoff Coulson said snow will begin early Wednesday morning in southwestern Ontario and near Lake Huron before spreading eastward. By midday, most of southwestern, south-central and eastern Ontario is expected to see snowfall. Conditions should gradually improve later in the day in the southwest, with snow tapering off overnight into early Thursday in eastern areas.
Snowbelt communities that have already seen record-breaking snowfall this winter — including Barrie, Orillia, Collingwood and Wasaga Beach — are expected to receive additional accumulation, further adding to already high seasonal totals.
Following the storm, a sharp drop in temperatures is forecast. Environment Canada says extreme cold warnings are possible later in the week, with early-morning temperatures expected to plunge well below seasonal norms, particularly by the weekend.
Drivers are urged to monitor conditions and check Ontario 511 for real-time updates on road closures and travel advisories as the storm approaches.

