Toronto residents should brace for a severe heatwave starting Monday, with a heat warning in effect due to dangerously high temperatures and humidity levels expected to persist throughout the week. And while the alert did not spell it outright, most of Central and Southern Ontario will be under the same predicament.
Daytime highs are forecasted to range between 30 to 35 degrees Celsius, accompanied by oppressive humidex values reaching 40 to 45. Nighttime temperatures will offer minimal relief, remaining between 20 to 23 degrees Celsius with humidex values around 26 to 30.
The combination of intense heat and humidity is likely to degrade air quality, potentially pushing the Air Quality Health Index into the high-risk category.
Extreme heat can impact everyone’s health, but it poses a significant risk to older adults, infants, young children, pregnant individuals, and those with physical or mental health conditions or disabilities. Symptoms of heat-related illnesses include swelling, rash, cramps, fainting, heat exhaustion, and heat stroke, as well as the worsening of existing health conditions.
Heat stroke is a critical medical emergency. If you or someone else experiences a high body temperature, confusion, stops sweating, or becomes unconscious, call 911 or the local emergency number immediately. While waiting for help, move the person to a cool area, apply cold water to large areas of their skin, and fan them to lower their body temperature.
Residents are advised to stay hydrated, avoid strenuous activities during peak heat hours, and check on vulnerable neighbors and family members to ensure their safety during this extreme weather event.