Toronto and Ontario hit with dangerous humidex near 45c

Ontario is expected to start feeling the worst of its latest heat wave today as forecasters predict temperatures to reach the mid- to high 30s, and humidex readings near the mid-40s.

Much of northern Ontario spent Monday under a severe orange warning, spanning areas from Kenora and Thunder Bay to Fort Hope and Timmins.

Forecasters said those areas could see highs of 36 C, with the humidex making it feel as hot as 42 C, before letting up later this week.

Less severe yellow warnings remain in effect for southern Ontario, including Windsor, Toronto, North Bay and east to Ottawa and Cornwall, with similar temperatures and even higher humidex forecasts.

Several municipalities, including Toronto and Hamilton, have opened cooling stations and pools for residents to keep out of the heat.

Meanwhile, similar temperatures being felt next door in southern Manitoba are expected to even out, with daytime highs set to drop to the low-30s or high-20s for the rest of the week.

As temperatures climb, health officials are reminding people to take a few simple steps to stay safe in the heat. The most important thing is to stay hydrated by drinking water regularly throughout the day, even if you don’t feel thirsty.

If possible, try to avoid spending long periods outdoors during the hottest part of the day, usually from late morning through the early evening. Air-conditioned buildings, shopping centres, libraries and community centres can offer a welcome break from the heat.

It’s also a good idea to wear light-coloured, loose-fitting clothing and take frequent breaks if you’re working or exercising outside. Residents are being reminded never to leave children or pets in parked vehicles, where temperatures can become dangerously high in just a matter of minutes.

Officials are also encouraging people to check in on elderly family members, neighbours and friends who may be more vulnerable during extreme heat events. Signs that someone may be struggling with the heat include dizziness, headaches, nausea, unusual fatigue and confusion.

With humidex values expected to make temperatures feel even hotter this week, a little extra caution can go a long way in helping people stay safe and comfortable until cooler weather returns.