Next system threatens 20+ cm of snow for parts of Quebec

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After ending the week with a bit more November warmth, temperatures begin another tumble on Saturday, setting the scene for a potentially significant snowfall event across parts of Quebec on Sunday. The stateside system is expected to intensify as it makes its way into the province, threatening more than 20 cm of snow over some regions through Monday. More on the details we know so far, and how much the track will play a role in where the heaviest snow falls, below.

WEATHER HIGHLIGHTS:

  • Wet snow develops across Ontario during the day on Sunday, reaching eastern Ontario and southern Quebec during the evening and overnight
  • Gradual changeover to rain, but with risk of freezing rain during that transition Monday morning
  • Potential for significant snow over areas of central Quebec

WEEKEND: KEEPING A CLOSE EYE ON THE TRACK OF A POTENTIALLY SIGNIFICANT SNOW STORM

Special weather statements already cover parts of southern and central Quebec as forecasters keep a close eye on a developing low pressure system over the U.S. Midwest.

The system is set to track into southern Ontario Sunday morning, spreading wet snow as it continues to move northeastward throughout the day. By Sunday evening and overnight, some additional strengthening is possible as the system makes its way into Quebec.

“A wide range in snow totals are expected across southern Ontario and southern Quebec depending on elevation and distance from Lake Ontario,” says Weather Network meteorologist Dr. Doug Gillham, adding that snow totals will be highly dependent on the track of the storm. “For areas that are north of Lake Ontario and the St. Lawrence we will see widespread totals of 5-15+ cm.”

A weaker and more southerly track would increase the potential for more snow and less rain for places like Ottawa and Montreal.

Some significant snow is also possible for Quebec City, with the threat for 30 cm currently on the table.

FIRST LOOK AT WEEKEND SNOW TOTALS:

Most places are expected to begin as snow, with a gradual changeover to rain. During that transition, there’s also a heightened risk of freezing rain for most areas on Monday morning.

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