Yellow Warning - Heat

A long duration heat event begins today.

What: Maximum temperatures of 30 to 35 degrees Celsius. Minimum temperatures of 20 to 24 degrees Celsius. Humidex values of 37 to 44.

When: Today through Thursday, and possibly into Friday.

Additional Information: Maximum temperatures of 30 to 32 degrees Celsius and humidex values of 37 to 40 are expected today. Heat and humidity will increase further beginning Tuesday with maximum temperatures of 31 to 35 degrees Celsius and humidex values of 40 to 44. Minimum temperatures of 21 to 25 degrees Celsius will provide little relief from the heat.

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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 X using #ONStorm.