Alerts for: York - Durham

Warnings

3:44 PM EST Saturday 19 January 2019
Extreme Cold Warning in effect for:

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

A period of very cold wind chills is expected.

An arctic air mass will move farther into Southern Ontario. Wind chill values are expected to fall to near minus 30 by early Sunday morning. Wind chills will remain near or below minus 30 throughout the day Sunday as bitterly cold northwest winds gust to 60 km/h and locally to 70 km/h.

Wind chill values will fall to minus 35 or lower Sunday night as temperatures fall well into the minus twenties.

Wind chill values will moderate above the warning criteria of minus 30 later on Monday, but are still forecast to be near minus 25.

A milder air mass will begin to move in Tuesday.

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

 

Statements

3:18 PM EST Saturday 19 January 2019
Special weather statement in effect for:

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

Snow ending Sunday morning. Bitterly cold temperatures continue.

Much of Southern Ontario is on the northern fringe of a major winter storm tracking south of the Great Lakes.

Periods of snow associated with this weather system will continue tonight and end Sunday morning. Additional snowfall amounts of 5 to 10 cm are expected near Lake Ontario with lesser amounts north of Highway 7. Surfaces such as highways, roads, walkways and parking lots may become icy and slippery.

Blowing snow will also develop in some areas, resulting in reduced visibility at times.

An extreme cold warning has been posted for the period from early Sunday through to Monday morning.

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

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