Canada's Condominium Magazine

Heat warning extended: humidex of 40C in Toronto prompts warning from Toronto’s Medical Officer of Health

Toronto is keeping its Emergency Cooling Centres open as Environment Canada extended its heat alert. The heat is expected to continue at least until Wednesday thanks to a near stationary high-pressure ridge stalled over the Great Lakes.


Environment Canada heat alert area indicated in red.


Authorities re-iterated the warning not to leave children or pets in cars. Only a few days ago, a woman was charged in the gruesome death of a child in a hot car behind an Etobicoke condo. [Story here>>]

Despite a surge in demand for power, authorities are cautioning residents to keep the air conditioning on or to seek out air-conditioned buildings, malls or cooling centres. For vulnerable children and elderly, the heat will be especially dangerous in residences with no air conditioning. Landlords have been cautioned to turn off heaters; many landlords believed they were mandated to turn on heat by September 15.


Environment Canada extended the heat alert for Toronto and Southern Ontario.


Suggestions to keep cool

Environment Canada recommends staying in the shade when outdoors. They advise a swimming pool or cool shower/bath if you feel overheated. Outdoor workers should take breaks in a cool place. Head to an air-conditioned mall, library or cooling centre. Most at risk are children, pregnant women, elderly and chronically ill.

Never leave children or pets in a car, even for a moment.

Air quality and pollution

As always in heat alerts, air quality and pollution are concerns, especially with stalled high-pressure ridges that trap air.

The warning from Environment Canada:

Heat Warning in effect for:

  • City of Toronto

Hot and humid conditions will continue early this week.

Mostly sunny skies have allowed daytime temperatures to reach the low thirties today, with humidex values approaching forty. Similar conditions are expected Tuesday.

A cold front is expected to move across Southern Ontario through the day Wednesday bringing cooler temperatures by Thursday.

  • Extreme heat affects everyone.

  • The risks are greater for young children, pregnant women, older adults, people with chronic illnesses and people working or exercising outdoors.

  • Reduce your heat risk. Schedule outdoor activities during the coolest parts of the day.

  • Seek a cool place such as a tree-shaded area, swimming pool, shower or bath, or air-conditioned spot like a public building.

  • Never leave people or pets inside a parked vehicle.

  • Outdoor workers should take regularly scheduled breaks in a cool place.

    Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion.

Auberge on the Park-Tridel


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