Ontario's weather is about to get chaotic AF with up to 20 cm of snow just before Christmas

Look out, folks! Ontario's weather is about to deliver a whole load of wintry chaos—just in time for Christmas.

In the early hours of Monday, December 23, Environment Canada issued weather advisories for many parts of Ontario, warning of up to 20 cm of snow in some regions.

The snow, which The Weather Network says is driven by an "Alberta clipper," is rolling into Ontario on Monday morning, bringing light snowfall that will intensify by the afternoon.

As part of its weather advisory for the City of Toronto, Environment Canada warned, "Only a few centimetres are expected from this initial round of snow. Another more significant round of snow is expected to move into the area this afternoon or early this evening."

By Monday evening, heavier snow is expected to blanket the region, continuing into the overnight hours. For most areas, snowfall amounts will range between 5 and 15 cm, but eastern Ontario and snowbelt regions could see totals reaching up to 20 cm.

More serious snowfall warnings are in effect for areas north of the GTA, including spots like Barrie, Bracebridge, Gravenhurst, and Parry Sound. In some of these spots, peak snowfall rates could reach between two and three centimetres per hour.

The snow will taper off to flurries late on Monday, followed by a risk of freezing drizzle.

The conditions will make driving tricky across the province, with icy, snow-covered roads and low visibility expected. According to Environment Canada, highways, walkways, and parking lots could quickly become hazardous, and sudden weather changes might catch drivers off guard. If you're planning to hit the road for the holidays, make sure to take it slow, give yourself extra time, and watch out for slick spots.

If you're flying out of the province for the Christmas period, don't forget to plan ahead. Toronto Pearson Airport and other regional hubs are advising travellers to arrive three hours early for all flights, no matter the destination, and to carefully plan their route to avoid delays caused by the weather.

While the GTA and southern parts of Ontario are bracing for significant snowfall, areas near Lake Erie and the Niagara Peninsula might see a mix of rain and snow, which could reduce accumulation totals.

Still, travel impacts are likely across the board, so be prepared if you're heading out.

For those wondering if the snow will stick around for Christmas, the answer looks like a yes. Cold temperatures on Christmas Eve will likely preserve the snowpack, with many parts of Ontario set to enjoy a white Christmas.

And while there's a slight risk of freezing drizzle heading into the holiday, Christmas Day onwards is shaping up to be mild, according to Environment Canada.

Starting Friday, southern Ontario is in for a thaw, with temperatures climbing to 5 C and beyond as we roll into the weekend. Highs of 6 C on Saturday and 7 C on Sunday mean the snow could start melting away as quickly as it arrived.

So, whether you're road-tripping, flying out, or staying cozy at home, Ontario's winter weather is likely to bring some serious chaos. Stay safe out there and make the most of this snowy lead-up to Christmas!

Full details about Ontario's ongoing weather advisories and live weather warnings can be found here.

This article's cover image was used for illustrative purposes only.

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