For the next two days, Mississauga, Brampton, and Caledon are under a heat advisory because humidex forecasts call for temperatures to soar into the 40s C.
Around 3 p.m. today (July 18), Environment Canada issued the alert, noting that “hot and humid conditions are expected Tuesday and Wednesday.”
In addition, hot and muggy weather “may also bring decreasing air quality and can result in the Air Quality Health Index nearing the high-risk category,” the Canadian government agency said.
A heat illness’s symptoms include swelling, rash, cramps, fainting, heat exhaustion, heat stroke, and the worsening of various medical disorders, according to authorities.
Officials from Environment Canada advise finding a cool location, such as a tree-shaded area, swimming pool, shower or bath, or air-conditioned spot like a public building. “Maintain a cool home. Close the blinds or curtains to block the sun.
They also advise against ever leaving people or pets inside a parked car in these conditions.
Dizziness/fainting, nausea/vomiting, rapid breathing, rapid heartbeat, severe thirst, and reduced urination with unusually dark urine are some of the symptoms of heat illness.
Tuesday and Wednesday are predicted to see daytime highs of around 31 C and humidex values in the upper 30s or higher, according to weather officials.
They go on to say that Tuesday’s projected evening low of around 20 C won’t offer much relief from the heat.
On Thursday, temperatures are expected to be a little bit lower.