A multi-day heat event is set to grip the region starting today, with daytime highs forecast to reach between 30 C and 35 C and humidex values climbing to 35 to 40. Overnight lows are expected to remain warm, ranging from 19 C to 22 C.
Environment Canada says slightly cooler temperatures are expected by the middle of next week, ending the heat wave.
Officials are urging residents to take precautions, noting that extreme heat can affect everyone’s health. “Determine if you or others around you are at greater risk of heat illness. Check on older adults, those living alone and other at-risk people in-person or on the phone multiple times a day,” the advisory states.
Early signs of heat exhaustion include headache, nausea, dizziness, thirst, dark urine and fatigue. Heat stroke, marked by red and hot skin, dizziness, nausea, confusion or loss of consciousness, is considered a medical emergency. Anyone showing symptoms should receive immediate medical attention while being moved to a cool place and cooled with water or ice packs.
Residents are advised to drink water regularly, keep blinds or shades closed, use fans or air conditioning, and seek out cooler public spaces if their homes are hot. Outdoor activities should be planned for cooler parts of the day, with lightweight clothing, hats and sun protection recommended.
Officials also warn never to leave children, pets or vulnerable people in parked vehicles.
Environment Canada says heat warnings are issued when very high temperatures or humidity pose an elevated risk of heat-related illnesses.
