A long duration heat event continues.What:Maximum temperatures of 31 to 34 degrees Celsius, and potentially up to 37 degrees Celsius for some areas.Minimum temperatures of 21 to 25 degrees Celsius.When:Continuing through Friday, and possibly continuing into the weekend for some regions.Additional Information:The hottest conditions are expected to continue into Thursday, with maximum temperatures of 34 to 37 degrees Celsius expected. Minimum temperatures of 21 to 25 degrees Celsius will provide little relief from the heat.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.htmlPlease 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.

Conditions are favourable for the development of squalls with wind gusts up to 50 knots and frequent lightning.A line of strong thunderstorms will track over the lake from the west early this evening.###Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.