A heat warning that covers the eastern half of Ontario and southern Quebec has been issued by Environment Canada for the coming days.
The weather agency says highs in our area are expected reach from 30C to 35C and sleeping will be uncomfortable as the overnight lows are also expected to feel like 26 to 30 when factoring in humidity.
The weather agency notes that extreme heat is hardest on the elderly, infants, pregnant women and people who are vulnerable due to mental or physical issues.
The following are details with expected temperatures as they apply to communities in south-central Ontario:
Issued at 2024-06-16 2:56 p.m. by Environment Canada:
Heat warning issued for:
Newmarket - Georgina - Northern York Region
Vaughan - Richmond Hill - Markham
Owen Sound - Blue Mountains - Northern Grey County
Listowel - Milverton - Northern Perth County
Stratford - Mitchell - Southern Perth County
Waterloo - Wellington
Innisfil - New Tecumseth - Angus
Halton Hills - Milton
Burlington - Oakville
Niagara
Current details:
A prolonged heat event will begin on Monday. Dangerously hot and humid conditions are expected through most of the week.
Daytime highs on Monday through much of the week are expected to be 30 to 35 degrees Celsius with humidex values of 40 to 45. There will be little relief through the overnight as lows are expected to be 20 to 23 degrees Celsius with humidex values of 26 to 30.
Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high risk category.
Extreme heat can affect everyone's health. The health risks are greater for older adults, infants and young children, pregnant people, people with physical and/or mental illnesses, and people with disabilities or mobility issues.
Watch for the effects of heat illness: swelling, rash, cramps, fainting, heat exhaustion, heat stroke and the worsening of some health conditions.
Heat stroke is a medical emergency! Call 911 or your local emergency number immediately if you or someone you are caring for has a high body temperature and are confused, has stopped sweating or becomes unconscious.
While waiting for help, cool the person right away: move them to a cool place, apply cold water to large areas of the skin and fan the person as much as possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to [email protected] or tweet reports using #ONStorm.