Dr. Eileen de Villa, Toronto's medical officer of health, said in a statement Tuesday that the alert will be in effect until further notice.
Extreme cold weather alert issued for Toronto, -17 C wind chill expected
The city says it issues cold weather alerts when Environment and Climate Change Canada is calling for temperatures of –15 C or colder, or wind chill values of –20 or colder.
Final snow tally at #yyz looks to be 13 cm and a record low this morning with a temp. dropping to -8c. If you showed me those numbers my first guess would certainly not have been that they happened in November! #onstorm
Environment Canada's current forecast is calling for slightly warmer temperatures than that, but not by much. Tuesday night's low is expected to be –12 C, with wind chill values making it feel more like –17 C overnight.
Wednesday's forecast is calling for a high of –4 C, and wind chill values of –15 in the morning rising to –6 in the afternoon.
Extreme cold weather alerts allow for the activation of services that focus on getting vulnerable residents inside.
The alert comes after the city saw its first snowstorm of the season Monday, with 13 cm being recorded at Pearson Airport.
A warming centre is open at Metro Hall by 7 p.m. the day an alert is called, and remains open continuously until noon on the day an alert is cancelled.
Other services include overnight street outreach and transit tokens made available in some drop-in centres.
The city is asking residents to help vulnerable people by calling 311 if street outreach assistance is needed, or to call 911 in an emergency.
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So cold in fact, the City of Toronto has issued an Extreme Cold Weather Alert that will be in effect until further notice.
According to the city, Extreme Cold Weather Alerts are issued when the temperature is forecast to reach -15ºC or colder, or when the wind chill is forecast to reach -20ºC or colder.
Extreme cold weather alerts may also be issued when the forecast includes factors that increase the impact of cold weather on health, including precipitation, low daytime temperatures, or several days and nights of cold weather in a row.
Environment Canada has forecasted that Toronto will see some flurries tonight, with temperatures falling to -12°C this evening, but it will feel more like -17°C with the windchill overnight.
The city is reminding the public that if you see a vulnerable person that requires street outreach assistance to call 311. If it’s an emergency, you should call 911.
Additionally, a warming centre will be open at Metro Hall by 7 pm the day an alert is called and remains open continuously until noon on the day an alert is terminated.