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Snowfall warning in effect: Environment Canada

15-25 cm possible by Monday morning
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Snowfall warning in effect for:

  • Newmarket - Georgina - Northern York Region
  • Pickering - Oshawa - Southern Durham Region
  • Uxbridge - Beaverton - Northern Durham Region
  • Vaughan - Richmond Hill - Markham

Significant snowfall beginning tonight.

Total snowfall amounts of 15 to 20 cm with locally higher amounts of 25 cm possible.
Snow, at times heavy, with peak snowfall rates of 2 to 3 cm per hour possible which could significantly reduce visibilities.
Local blowing snow at times due to winds gusting up to 60 km/h.

When: Tonight through Monday evening.

Discussion: A low pressure system tracking south of the Great Lakes will bring significant snowfall to the region. Heavy snow will likely significantly impact the Monday morning commute. Local blowing snow is also possible Monday afternoon and evening with gusty northerly to northwesterly winds.

Rapidly accumulating snow will make travel difficult. Visibility may be suddenly reduced at times in heavy snow. There may be a significant impact on rush hour traffic in urban areas. Take frequent breaks and avoid strain when clearing snow.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to or tweet reports using #ONStorm.