A multi-day heat event begins today (Sunday). Daytime high temperatures of 30 to 34 degrees Celsius, with humidex values of 38 to 42.
Nighttime low temperatures of 19 to 23 degrees Celsius, providing little relief from the heat.
When: Today through Tuesday.
Additional information: The hottest conditions are expected on Monday. There is some uncertainty in the duration of the heat event for some regions. In central Ontario, the heat event may end Monday night. Over some areas the heat event could persist into Wednesday.
Southwestern Public Health advises:
During a heat warning, residents should take precautions to protect themselves and the most vulnerable from heat-related illness. Those most vulnerable to the effects of the heat include older adults, infants and young children, outdoor workers, people experiencing homelessness who do not have shelter, proper clothing or food.
Anyone who experiences physical distress because of extreme temperatures should immediately seek medical attention, either by calling 911 or going to the nearest emergency department.
What you should do:
- During extreme temperature conditions, stay indoors in an air-conditioned building if possible
- Limit time in the sun when the UV Index is most intense, between 11 a.m. – 4 p.m.
- Seek shade when outdoors, especially during mid-day
- Drink plenty of water to stay hydrated and decrease intake of caffeinated/alcoholic beverages
- Take cool showers or baths
- Apply Sunscreen with SPF 30 (or higher), 20-30 minutes before going outside to ensure absorption and re-apply every two to three hours
- Check regularly on children, the elderly, persons with disabilities and individuals with chronic illnesses
- Never leave young children, the elderly or pets in closed parked vehicles for any period
- Find a public Cooling Centre on our website
Heat stroke is a medical emergency. Call 911 or your emergency health provider if you, or someone around you, is showing signs of heat stroke which can include red and hot skin, dizziness, nausea, confusion and change in consciousness. While you wait for medical attention, try to cool the person by moving them to a cool place, removing extra clothing, applying cold water or ice packs around the body.
