Environment Canada warns of extreme heat for Windsor-Essex, Chatham, Sarnia areas
Temperatures could reach as high as 36 C early next week
A heat warning is in effect for much of southwestern Ontario as the region braces for "the first significant heat wave of the season," Environment Canada says.
The federal weather authority says the "dangerously hot conditions," expected to land in the region this weekend, could generate daytime highs up to 36 C that could feel like 40 to 45 C in Windsor-Essex, Chatham-Kent and the Sarnia-Lambton area.
Overnight temperatures will remain in the range of 21 to 25 C, offering "little relief from the heat," Environment Canada said in the warning issued Friday.
The high temperatures will begin Saturday afternoon and are expected to last through next week, the warning states.
"Take action to protect yourself and others – extreme heat can affect everyone's health," Environment Canada advised.
Steven Flisfeder, a meteorologist with Environment Canada, says high temperatures are expected until at least Tuesday.
"Right now it's looking like the peak will be Monday, with the high currently expected to be around the 35 to 37 C mark," he said.
Environment Canada's warning urges people to watch for early signs of heat exhaustion, such as headache, nausea, dizziness, thirst, dark urine and intense fatigue.
Heat stroke, by comparison, is a medical emergency that warrants a call to 911, the federal weather forecaster says. Symptoms include red and hot skin, dizziness, nausea, confusion and changes in consciousness.
People should plan their outdoor activities for the coolest parts of the day and limit direct sun and heat exposure, the warning says. "Wear lightweight, light-coloured, loose-fitting clothing and a wide-brimmed hat."
People, especially children, and pets should never be left in a parked vehicle. If you know older adults or people living alone, Environment Canada says to check on them, in-person or over the phone, multiple times a day.
The Windsor-Essex County Health Unit has also issued an extended heat warning stretching from Saturday to Wednesday. The health unit issues such warnings when the forecast shows three or more consecutive days with highs of 31 C or more, and overnight temperatures of at least 21 C.
The health unit says people can also stay cool by drinking lots of water or taking a cool bath or shower.