Brace for Dangerous Heat This Sunday Afternoon: Environment Canada Issues Warning for Eastern Ontario | CBC News

Extreme heat and humidity are headed for eastern Ontario this Sunday, with Environment Canada issuing warnings for the region. We could see temperatures soaring to 36 °C, with humidity making it feel even hotter—up to 45 °C. Overnight lows won’t provide much relief, staying around 25 °C.

This heat wave is expected to last until Tuesday night, but if a cold front stalls to the north, we might face sweltering conditions even into Wednesday. Western Quebec is also bracing for the warm air, with special weather alerts predicting similar humidex values.

With these high temperatures, Health Canada advises ways to stay safe. Here are some tips: drink plenty of water, avoid strenuous activities in the heat, and consider meals that don’t require the oven. If you know anyone vulnerable, check in on them, too.

Be aware of the signs of heat exhaustion, such as headaches, dizziness, or a rapid heartbeat. If someone shows signs of heat stroke—confusion or very hot skin—this is a medical emergency. Don’t hesitate to call for help.

For those in Ottawa, there’s a handy map showing public places where you can cool off during this heat wave.

Historically, Ottawa has reached record highs of 34.4 °C on June 23 and 24 in 1921 and 1919. The hottest humidex recorded was an intense 47 °C in 2006 and again in 2018.

Research indicates that heat waves are becoming more intense as our climate shifts. A recent study by Environment Canada highlights significant changes in heat patterns when comparing today’s climate to pre-industrial times. This trend signals that we may need to adapt to more extreme weather in the future.

As we face this upcoming heat, staying informed and prepared is essential. Keeping cool and hydrated isn’t just a good idea—it’s necessary.

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