“Dangerously hot” weather is headed our way, Environment Canada says

A heat advisory covering much of Ontario has been issued by Environment Canada for the next few days.

The Met Office says highs are expected to reach 30C to 35C in our area and sleeping will be uncomfortable as overnight lows are also expected to be between 26C and 30C when humidity is taken into account.

The weather agency notes that the extreme heat is hardest on the elderly, infants, pregnant women and people who are vulnerable due to mental or physical problems.

The following are details of expected temperatures as they apply to communities in South Central Ontario:

Issued on 2024-06-16 14:56 by Environment Canada:

Heat warning issued for:
Newmarket – Georgina – North York Region
Vaughan – Richmond Hill – Markham
Owen Sound – Blue Mountains – Northern Gray County
Listowel – Milverton – Northern Perth County
Stratford – Mitchell – South Perth County
Waterloo – Wellington
Innisfil – New Tecumseth – Angus
Halton Hills – Milton
Burlington – Oakville
Niagara

Current details:
An extended heat event will begin on Monday. Dangerously hot and humid conditions are expected for most of the week.

Daytime highs on Monday through most of the week are expected to be 30 to 35 degrees Celsius, with humidex values ​​of 40 to 45. There will be little relief overnight as lows of expected to be 20 to 23 degrees Celsius, with humidex values ​​of 26. to 30.

Warm and humid air can also bring deterioration of air quality and lead to the air quality health index approaching the high risk category.

Extreme heat can affect everyone’s health. Health risks are greater for older adults, infants and young children, pregnant women, people with physical and/or mental illnesses, and people with disabilities or mobility problems.

Watch for the effects of heat illness: swelling, rashes, cramps, fainting, heat exhaustion, heatstroke, and worsening health conditions.

Heat stroke is a medical emergency! Call 911 or your local emergency number right away if you or someone you are caring for has a high body temperature and is confused, has stopped sweating, or has become unconscious.

While waiting for help, cool the person immediately: move them to a cool place, apply cold water to large areas of the skin, and ventilate the person as much as possible.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, email to (email protected) or tweet reports using #ONStorm.