Winter storm warning in effect for:
- Newmarket - Georgina - Northern York Region
- Pickering - Oshawa - Southern Durham Region
- Uxbridge - Beaverton - Northern Durham Region
- Vaughan - Richmond Hill - Markham
Hazardous winter conditions are expected.
Winter storm with a combination of 10 to 20 cm snow and ice pellets, possible freezing rain, and strong winds expected Tuesday and Tuesday night.
Snow and blowing snow will begin Tuesday morning. Snow will mix with or change to ice pellets later Tuesday. Strong easterly winds gusting to 70 km/h will cause reduced visibility in blowing snow. Total snowfall and ice pellet amounts of 10 to 20 cm are possible before ending Wednesday. There is also a risk of freezing rain.
This weather is associated with a Colorado low that will cross Southern Ontario Tuesday and Wednesday.
Consider postponing non-essential travel until conditions improve. Rapidly accumulating snow could make travel difficult over some locations. Visibility will be suddenly reduced to near zero at times in heavy snow and blowing snow. If visibility is reduced while driving, turn on your lights and maintain a safe following distance.
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.