Environment Canada issues warning as southern Ontario braces for 35°C temperatures, humidex nears 44°C
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Public Health officials offer safety tips:
Drink water frequently, even before feeling thirsty
Avoid strenuous activities during peak heat hours
Seek shade or air-conditioned spaces whenever possible
Never leave children or pets unattended in vehicles
Southern Ontario is bracing for another wave of intense heat as Environment Canada issues a heat warning starting Thursday(July 24), with temperatures forecast to hit 35°C and humidex values climbing to a staggering 44°C.The warning covers a large swath of the region along Lake Ontario , stretching from St. Catharines to Toronto , where the oppressive heat and humidity are expected to create potentially hazardous conditions for residents.While daytime highs will moderate slightly heading into Friday and the weekend, overnight lows are forecast to remain uncomfortably warm, offering little relief for those without access to air conditioning.'Heat events like this can pose serious health risks,' Environment Canada said in its advisory, urging the public to stay hydrated, avoid prolonged outdoor exposure, and check in on vulnerable individuals, including older adults and those with pre-existing health conditions.Friday's forecast calls for temperatures near 30°C, with humidex levels up to 40°C, keeping much of the region in heat warning territory through the end of the week.This is not Ontario's first heat alert of the summer. Record-breaking temperatures swept across the province in June, with several communities enduring sustained highs in the mid-30s.Heat warnings are issued when two or more consecutive days of daytime maximum temperatures are expected to reach 30°C or higher, with nighttime lows of 20°C or more, or when humidex values exceed 40°C.Officials are reminding residents to stay informed through local updates and be prepared for possible extended heat conditions.
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