Environment Canada has issued a heat warning for Chatham-Kent, with hot and humid conditions expected to begin Monday and continue until Wednesday evening or possibly Thursday evening.
Daytime highs are forecast to range from 30 C to 36 C, with overnight lows between 20 C and 23 C. Humidex values are expected to reach between 38 and 45, with Tuesday anticipated to be the hottest day of the event as temperatures climb to around 36 C in some areas.
Environment Canada warns the combination of heat and humidity could also lead to deteriorating air quality, with the Air Quality Health Index potentially approaching the high-risk category.
CK Public Health is urging residents to take precautions, noting that prolonged periods of high temperatures and humidity can prevent the body from cooling properly and increase the risk of heat-related illnesses, including heat exhaustion and heat stroke.
Health officials say symptoms of heat-related illness can include rapid breathing, dizziness or fainting, vomiting, rapid heartbeat, extreme thirst and decreased urination with unusually dark yellow urine. Anyone experiencing those symptoms should move to a shaded or air-conditioned area, drink fluids and rest.
Heat stroke is considered a medical emergency. Residents are advised to call 911 immediately if someone has a high body temperature, is unconscious, confused or has stopped sweating.
Officials are encouraging residents to drink water frequently, avoid strenuous outdoor activity during the hottest parts of the day, wear lightweight clothing and never leave people or pets inside parked vehicles.
Friends, family and neighbours are also encouraged to check regularly on older adults, people living alone and others who may be more vulnerable to the effects of extreme heat.
People without air conditioning are at greater risk during prolonged heat events, as homes may not cool sufficiently overnight. Municipal centres, Chatham-Kent Public Library branches and Hope Haven in Chatham are available as places to cool off during the heat event. Homeless residents in need of assistance are encouraged to contact the Homeless Response Line, which operates 24 hours a day.
Residents are advised to continue monitoring forecasts and warnings from Environment Canada throughout the heat event.
