This weekend is shaping up to be a noteworthy one for Ontario, as the province braces for its first major snow squall event of the season. While this might delight winter sports enthusiasts eager for fresh powder, drivers are advised to tread carefully, as dangerously hazardous road conditions are anticipated.

Snow squalls, especially those driven by lake-effect, will blanket the Ontario snowbelt regions, with some areas potentially experiencing a staggering one metre or more of snowfall through the weekend. As we kick off December, and with the holiday season approaching, ski resorts are set to benefit from these intense conditions, promising excellent skiing opportunities.

Travel Chaos Looms!

Authorities are warning that road closures are a real possibility, particularly in regions that witness multiple snow squall bands. The weekend could see snow accumulation varying widely, with forecasts indicating up to 100 cm in some areas. Drivers are urged to remain vigilant and prepare for rapidly changing weather conditions. As squalls can lead to intense snowfall and near-zero visibility, travel may quickly become treacherous.

A Multi-Day Snowstorm!

The icy wave begins with a blast of squalls expected Friday. This day is projected to be the coldest we've faced this winter season. As frigid air sweeps through, it will enhance lake-effect snow production, leading to potentially powerful squalls. Thunder snow—a phenomenon of heavy snowfall accompanied by thunder—could also make an appearance.

The lake-effect snow event commenced late Thursday and is forecasted to persist into Sunday, affecting regions from Kincardine to Dundalk and from Parry Sound to Barrie, with a particularly intense focus on Cottage Country. Travelers should brace for whiteout conditions along highways and limited visibility.

Northward, Sault Ste. Marie is expected to receive heavy lake-effect snowfall at rates of 5-10 cm per hour on Friday and Saturday, contributing to snowfall totals of 30-50+ cm.

Warnings in Effect!

Environment and Climate Change Canada has already issued snow squall warnings in anticipation of the incoming storm. Drivers are advised, "Prepare for quickly changing and deteriorating travel conditions."

Though significant snowfall will chiefly affect the snowbelt regions, the Greater Toronto Area (GTA) will also have its fair share of winter weather. Areas like London and Guelph may experience snow squalls, encouraging residents to stay informed and ready for rapidly evolving conditions.

Winter Travel Alert!

Anyone traveling south, especially towards Buffalo or nearby regions, should be aware of the potential for heavy localized snow and wind gusts reaching 40-60 km/h, leading to whiteouts and slippery conditions.

While the snow presents an inviting prospect for skiers and snowboarders, it spells trouble for those traveling by road. Christmas shoppers and holiday travelers should remain updated on highway conditions. Highways 21, 6, and 26 from Lake Huron, along with Hwy 11, 400, and 69 from Georgian Bay, are likely to be severely affected.

In summary, Ontario is gearing up for an extreme winter weekend. Stay safe, check your routes before heading out, and enjoy the snowfall if you can! Are you ready for the winter storm of the season? Don't miss out on the action—winter is officially here!