A dangerous heat wave is set to grip Port Colborne starting Tuesday, as a heat dome from the United States pushes temperatures to 34°C and humidity makes it feel even hotter. Environment Canada has issued an orange heat warning for the city and surrounding Niagara region, urging residents to take care of themselves and check on neighbours who might be vulnerable.
The warning took effect Monday afternoon, but the most intense heat is expected from Tuesday through Friday, with some of the highest temperatures arriving on Canada Day. Daytime highs between 31°C and 34°C are forecast, and humidex values could reach 40 to 45. Overnight lows will only dip to between 21°C and 25°C, offering little relief.
Port Colborne has a significantly older demographic than the provincial average, with about 27 per cent of residents aged 65 and over, according to census data. That makes the community especially at risk because older adults are more prone to heat exhaustion and heat stroke. Officials are asking people to reach out to elderly friends and neighbours, especially those who live alone, to make sure they have a way to stay cool.
During the heat warning, Niagara Transit is offering free rides to designated cooling centres. Anyone showing signs of heat stroke, like red and hot skin, dizziness, nausea, confusion, or fainting, should call 911 immediately, as it can be life-threatening.
Forecasters with The Weather Network say the heat dome blanketing the eastern U.S. is the main driver of the extreme temperatures. The Environment Canada warning notes the hot, sticky air could also worsen local air quality, and the Air Quality Health Index may approach the high-risk category, creating extra strain for people with breathing problems.
Wednesday and Thursday are expected to be the hottest days, with some spots possibly reaching 37°C. This comes as the city prepares for Canada Day celebrations on July 1, and officials are reminding everyone to drink plenty of water, stay in shaded or air-conditioned places, and never leave children or pets alone in parked vehicles.
More details on cooling centre locations and hours are available through Niagara Region.
