Heat Warning Continues for Our Region – Continuing through Today or Possibly Wednesday for Some Areas

Brockville – A Heat Warning continues today for Brockville, Leeds-Grenville and most of Eastern Ontario through today or possibly Wednesday for some areas.

Daytime highs of 32 to 35 degrees Celsius, with humidex values of 37 to 42. Overnight lows of 20 to 23 degrees Celsius.

A cooler air mass is expected to arrive tonight, bringing an end to this heat event. There is the possibility that eastern Ontario and the Greater Toronto and Hamilton Area could see hot and humid conditions continue into Wednesday.

Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high-risk category.

Take action to protect yourself and others – extreme heat can affect everyone’s health. Determine if you or others around you are at greater risk of heat illness. Check on older adults, those living alone and other at-risk people in-person or on the phone multiple times a day.

Watch for the early signs of heat exhaustion in yourself and others. Signs may include headache, nausea, dizziness, thirst, dark urine and intense fatigue. Stop your activity and drink water.

Heat stroke is a medical emergency! Call 9-1-1 or your emergency health provider if you, or someone around you, is showing signs of heat stroke, which can include red and hot skin, dizziness, nausea, confusion and a change in consciousness. While you wait for medical attention, try to cool the person by moving them to a cool place, removing extra clothing, applying cold water or ice packs around the body.

Drink water often and before you feel thirsty to replace fluids.

Close blinds or shades and open windows if the outside is cooler than the inside.

Turn on the air conditioning, use a fan, or move to a cooler area of your living space. If your living space is hot, move to a cool public space such as a cooling centre, community centre, library or shaded park.

Follow the advice of your region’s public health authority.

Plan and schedule outdoor activities during the coolest parts of the day.

Limit direct exposure to the sun and heat. Wear lightweight, light-coloured, loose-fitting clothing and a wide-brimmed hat.

Never leave people, especially children, or pets inside a parked vehicle. Check the vehicle before locking to make sure no one is left behind.

Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion.

For more information: How to protect yourself from the health effects of extreme heat, Health risks, and who is at risk of extreme heat events

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.