Thunder Bay, Ontario, is in the grip of a scorching heat wave, with temperatures hitting 39.1°C on Monday afternoon and the humidex making it feel like 42. Environment Canada has issued an Orange Heat Warning for the city, in effect through Tuesday evening and possibly into Wednesday.
The warning calls for daytime highs between 34 and 40°C, overnight lows only dipping to 19-23°C, and humidex values reaching 38 to 45. Monday marks the peak of the event, but the risk isn’t over. There is a 30% chance of showers overnight tonight with a risk of thunderstorms, and a 30% chance of showers early Tuesday morning with a risk of thunderstorms.
The Thunder Bay District Health Unit warns that because of our cooler climate, people here can be more affected by extreme heat than those who are used to it. Heat stroke is a medical emergency. If you see someone with red, hot, dry skin, confusion, dizziness, or nausea, call 911 immediately.
Those most at risk include older adults, young children, pregnant people, anyone with a chronic illness, outdoor workers, and people without a cool place to stay. The city’s Severe Weather Response Plan focuses on protecting people experiencing homelessness. A cooling centre run by PACE at 409 George Street is open, offering cold drinks, snacks, and a break from the heat.
Hot, humid air can also push the Air Quality Health Index toward the high-risk category. The UV index is 9, which is very high, so sunscreen and a wide-brimmed hat are a must if you go outside. Check on neighbours who might be struggling, and try to avoid outdoor activity in the hottest part of the day.
