A dangerous heat wave is sweeping across Smiths Falls, Perth, and eastern Lanark County starting Sunday afternoon and lasting through Tuesday night. Daytime highs are expected to reach 30 to 36°C, with humidex values making it feel closer to 45. Overnight lows between 21 and 25°C will offer little relief.
Environment Canada warns that extreme heat and humidity may stretch into Wednesday depending on how far south a cold front moves.
Local hydro outages are making the situation even harder for residents without working air conditioners or fans. Officials suggest finding a cool public space, like a library or community centre, if possible. People should keep blinds closed, lights off, drink lots of water, and take cool showers or baths.
Signs of heat exhaustion include headache, dizziness, nausea, and fatigue. If heat stroke is suspected, call 9-1-1 immediately and try to cool the person down with water or ice packs.
Public health experts recommend checking on vulnerable people, especially seniors and those living alone. Outdoor activity should be limited to the coolest times of day.
Residents are urged to wear light clothing and never leave children or pets in parked vehicles—even for a few minutes.
Stay alert and stay safe as this heat wave continues. 88.1 myFm will have forecast updates throughout the day.