10:57 AM EST Saturday 19 January 2019 Extreme Cold Warning in effect for:
City of Toronto
City of Ottawa
Most of Ontario
A period of very cold wind chills is expected. An arctic air mass is forecast to begin to move into Southern Ontario today. Wind chill values are expected to fall to close to minus 35 overnight tonight, and overnight Sunday. Wind chill values overnight Monday are expected to be close to minus 30. Conditions will improve by Tuesday when a milder airmass moves in.
Risks are greater for young children, older adults, people with chronic illnesses, people working or exercising outdoors, and those without proper shelter. Cover up. Frostbite can develop within minutes on exposed skin, especially with wind chill. If it's too cold for you to stay outside, it's too cold for your pet to stay outside. Extreme cold warnings are issued when very cold temperatures or wind chill creates an elevated risk to health such as frost bite and hypothermia.