After experiencing a hot Victoria Day, the Greater Toronto Area is bracing for its first heatwave of the year that is expected to persist until Tuesday. Environment Canada has issued a yellow heat alert for several areas, including Toronto, Vaughan, Richmond Hill, Markham, Mississauga, and Brampton, Ontario. The warning commenced on Monday afternoon and is slated to conclude on Tuesday night.
Daytime temperatures are anticipated to reach 30 degrees Celsius, with a heat index making it feel close to 36 degrees Celsius. Overnight temperatures will range between 18 and 20 degrees Celsius. Thunderstorm activity is also predicted for Toronto later in the day and into the evening on Tuesday.
Meteorologist Kristina Kretchman from Environment Canada mentioned that the sudden surge in temperatures might seem drastic due to recent cooler weather conditions, but such heatwaves at this time of the year are not uncommon. A warm air mass originating from the United States is moving northwards into Ontario, bringing elevated temperatures and humidity.
As per the warning, Environment Canada advises vigilance for symptoms of heat-related illnesses such as headaches, nausea, dizziness, confusion, and extreme fatigue. Residents are encouraged to stay hydrated, utilize air conditioning, keep blinds closed, limit sun exposure, and open windows for ventilation.
To combat the heat, the City of Toronto has activated its heat relief plan. Over 380 park water fountains and 247 park washrooms are open throughout the city. Additionally, mobile water trailers will be stationed at key locations like Nathan Philips Square, Mel Lastman Square, East York Civic Centre, and Etobicoke Civic Centre by noon on Monday. During the heatwave, 168 splash pads will operate from dawn till dusk, and the city will offer 112 extra shelter spaces by midday on Monday.