press release

First Heat Warning of 2024 issued for Lambton County

Point Edward, ON – With the prediction of hot and humid weather expected for today, June 17, and Tuesday, June 18, Environment and Climate Change Canada has issued a Heat Warning for Lambton County.

Heat warnings are issued when two or more consecutive days of daytime maximum temperatures are expected to reach 31°C or warmer and nighttime minimum temperatures are expected to sit at 20°C or warmer or when two or more consecutive days of humidex values are expected to reach 40°C or higher. In high temperatures and humidity, your body may not be able to cool properly which can lead to heat exhaustion or even heat stroke.

“Heat-related illnesses are a high risk for the elderly, children, and those with chronic illnesses,” said Dr. Karalyn Dueck, Medical Officer of Health. “Any individual can be impacted, though, especially if they work or are active outdoors, and it is recommended they take steps to combat the heat and stay cool.”

Symptoms of heat exhaustion may include rapid breathing, dizziness or fainting, vomiting, rapid heartbeat, extreme thirst, and decreased urination that is unusually dark yellow in colour. If you are experiencing these symptoms, please move to a shaded or air-conditioned area, drink plenty of water, and rest. If symptoms persist, please seek urgent medical attention.

Heat strokes are considered a medical emergency. Call 911 immediately if you are caring for someone who has a high body temperature, is dizzy or fainting, confused, or has stopped sweating. Friends, family, and neighbors should check on those who may be vulnerable and need help to keep cool or take other preventative actions.

Heat-related illness is preventable

  • Drink plenty of fluids, especially water.
  • Avoid strenuous activities between 11:00 a.m. and 3:00 p.m. when the sun’s rays are strongest. Re-schedule outdoor activities to a cooler time of day.
  • Avoid going out in the sun, if possible. If you are outdoors, seek shade and wear sunscreen, Wear lightweight, loose fitting clothing and sunglasses.
  • If you are taking medication or have a health condition, ask your healthcare provider if the heat increases your risk, and follow their recommendations.
  • Call to check on people who are at risk for heat-related illness, including older adults or person with chronic illnesses to make sure they are keeping cool and hydrated.
  • Take cool showers or baths, or use cool, wet towels on your face, neck, or arms.
  • The use of a fan alone may not provide enough relief from the heat indoors. Avoid heavy meals and using your oven. Keep curtains closed to block the sun during the day.
  • Never leave anyone (including pets) in a parked car. Pets need a cool location and fresh water.

For additional information and resources on extreme heat, please visit Health Canada’s website.

Cooling Centre Locations

Please visit for more information about extreme heat and your health and access a list of available cooling centre locations and the hours of operation.


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