In the release they say with Environment Canada indicating much of Southwestern Ontario will see a heat even tonight and tomorrow with temperatures expected to reach 33 degrees Celsius.
Humidex values could reach 40 degrees. HPPH says overnight there will be little relief from the heat with temperatures only dropping to 20 or 22.
Hot and humid conditions will continue Thursday although with rain or thunderstorms it may cool lightly. Public Health says with this event comes the risk of heat-related illness such as heat stroke or heat exhaustion.
The risk is greatest they advise for young children, pregnant individuals, older adults, people with chronic illness and those working or exercising outdoors.
HPPH offers measures to take to avoid or reduce the risk of heat-related illnesses and possible symptoms. You can find those below.
- Drink plenty of cool liquids, especially water, before you feel thirsty to decrease your risk of dehydration. You may be dehydrated before you start feeling thirsty.
- Reschedule or plan outdoor activities during cooler parts of the day.
- Wear loose-fitting, light-coloured clothing made of breathable fabric.
- Never leave people or pets inside a parked vehicle or in direct sunlight.
- Take a break from the heat by spending a few hours in a cool place, such as a tree-shaded area or air-conditioned space.
- Take cool showers or baths until you feel refreshed.
- Prepare meals that don’t need to be cooked in your oven.
- Block sun out by closing curtains or blinds during the day.
- Avoid sun exposure. Shade yourself by wearing a wide-brimmed, breathable hat or using an umbrella.
Symptoms of heat-related illness can include:
- Dizziness or fainting
- Nausea or vomiting
- Headache
- Rapid breathing and heartbeat
- Extreme thirst
- Decreased urination with unusually dark yellow urine.