Yellow Warning - Heat

Multi-day heat event beginning today.

What: Daytime highs of 29 to 31 degrees Celsius. Humidex values of 33 to 38. Nighttime lows of 16 to 19 degrees Celsius, providing little relief from the heat.

When: From this afternoon until Thursday evening.

Additional information: This multi-day heat event is expected to end on Thursday evening, but may continue into Friday.

Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high-risk category.

###

Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion.

For more information: https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/how-protect-yourself.html https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/who-is-at-risk.html

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on social media using #ONStorm.