Environment Canada advises that extreme heat affects everyone.
The Canadian weather agency issues heat warnings "when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion".
Temperatures approaching 30 C degrees are expected for P.E.I. on Tuesday and will continue on Wednesday, according to the latest Environment Canada forecast.
Nighttime will offer some relief each day with temperatures hovering around 20 C. The humidity will stick around though.
Kaiser said one reason Quebec has been reporting so many deaths is because it's part of the province's extreme heat plan, where health officials work in tandem with first responders and emergency rooms to track down potential cases of heat-related illnesses and deaths.
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Premila D'Sa is a breaking news reporter, working out of the Star's radio room in Toronto. Another five casualties pushed the death toll to 11 by Wednesday morning, when the city awoke to another suffocating day of high temperatures.
"We would prefer having no deaths related to heat but with four days of intense heat and especially hot nights, we expect to see an impact on people's health", Kaiser said. Low temperatures overnight will be in the high teens to low 20s providing little relief from the heat.
All seven cooling centres in the city are open. A high of 26 and low of 14 is expected in Toronto on Friday, Ms. Hobelman said, with a chance of showers and a thunderstorm.
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Drouin says the victims fit the profile of people authorities describe as at risk: those with chronic illness or mental-health problems, people who live alone and people without air conditioning at home.