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Heat warning issued for Durham

Residents are reminded to take precautions as the mercury continues to rise over the next few days.

Environment Canada has issued a heat warning for the Durham Region, which occurs when the forecast conditions include a daytime high of at least 31°C and overnight temperatures of 20°C or greater, or with Humidex values of at least 40 for two or more days.

The Durham Region Health Department is advising area residents to take precautions to prevent heat-related illness during the upcoming heat warning.

Heat illnesses are preventable; however, these illnesses can lead to long-term health problems and even death. If any symptoms of heat illness are present, such as dizziness or fainting, nausea or vomiting, headache, rapid breathing and heartbeat, or extreme thirst, immediately move to a cool place and drink liquids, especially water.

The most dangerous heat illness is heat stroke with symptoms that include complete or partial loss of consciousness, or confusion and high body temperature.

If caring for someone with these symptoms, call 911 immediately. While waiting for help, cool the person right away by moving them to a cool place, applying cold water to large areas of the skin or clothing and fanning the person as much as possible.

For news and updates visit,, or contact the Environmental Help Line at 1-888-777-9613 or 905-723-3818.