Extreme heat to begin Sunday afternoon in GTA, surrounding cities: Environment Canada
Environment Canada has placed the Greater Toronto Area and surrounding cities under a heat warning, saying dangerously hot and humid conditions will begin Sunday afternoon and continue into next week.
Daytime highs are expected between 31 and 36 C. Humidex values, which reflect how hot it feels, may range between 40 and 45, Environment Canada said.
Overnight lows are forecast between 21 and 25 C, which the weather agency said will provide "little relief from the heat."
The warning is in effect for the following areas: Toronto, Mississauga, Brampton, Richmond Hill, Vaughan, Markham, Newmarket, Georgina, northern York Region, Durham Region, Pickering, Oshawa, Uxbridge, Beaverton, Simcoe, Halton Hills, Milton, Barrie, Collingwood and Hillsdale.
WATCH | Environment Canada senior climatologist discusses the heat wave heading for the GTA:
What you need to know about the heat wave headed for Toronto
1 day ago
Duration 4:02
Extreme heat is expected to continue until Tuesday night. It may continue Wednesday for southwestern Ontario and the GTA, depending on the movement of an expected cold front.
People are advised to watch for symptoms of heat stroke, which is a medical emergency, in themselves and others. Symptoms can include red and hot skin, dizziness, nausea, confusion and change in consciousness.
"While you wait for medical attention, try to cool the person by moving them to a cool place, removing extra clothing, applying cold water or ice packs around the body," Environment Canada advised.
Environment Canada also advised people to drink water often, even before feeling thirsty, and close blinds and open windows if the outside is cooler than inside.
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