Heat and humidity is expected to settle into London over the weekend, a combination that could be dangerous.
A heat warning has been issued by Environment Canada for all of southern Ontario.
On Thursday, the mercury is expected to hit 31 degrees, which will feel closer to 42 degrees with the humidex. Temperatures are expected to fall to the low 20s overnight, but then climb even higher on Friday, with the daytime high reaching 32 degrees, feeling more like 46.
With similar conditions expected to continue throughout the weekend, weather officials recommend frequently visiting vulnerable neighbours, friends and family members, making sure everyone stays cool and hydrated.
Environment Canada wants to remind the public that heat related illnesses are preventable. While everyone is at risk of suffering from the heat, it can be greatest for older adults, infants and young children, and people with chronic illnesses that affect breathing or their heart. People who work, or chose to exercise are also vulnerable, along with the homeless.
In London, the Centre of Hope will be providing some relief for those who need it.
“We are encouraging folks to stay inside, those who are residents of ours, giving access for other things to people who need to get in out of the heat, making sure that we are providing water, not just to the residents of the Centre of Hope, but again the most vulnerable in the community,” said Salvation Army spokesperson Perron Goodyear.
“We also have stations throughout the Centre of Hope where we have sunscreen available, trying to make sure people are protected in that way.”
Heat illnesses include heat stroke, heat exhaustion, heat fainting, heat edema (swelling of hands, feet and ankles), heat rash and heat cramps. Symptoms include dizziness or fainting, nausea, or vomiting. A headache, rapid breathing and heartbeat, extreme thirst, and decreased urination are also signs someone might be suffering.
Everyone is encouraged to drink plenty of liquids, especially water, before feeling thirsty to decrease the risk of dehydration. The weather centre says thirst is not a good indicator of dehydration, and water should be consumed regularly throughout the day.
Never leave people or pets in your care inside a parked vehicle, or in direct sunlight, as inside temperatures can easily exceed 50 degrees in a short amount of time.
While this hot air mass will stick around throughout the weekend, humidex values aren’t expected to be quite as high, reaching the mid-to-high 30’s.
Similar conditions are expected next week as well, with a chance for showers on Friday and Monday.