Heat warning issued for parts of Ontario

The first heat event of the season is expected this week in Ontario.

Environment and Climate Change Canada has issued a heat warning for parts of Northern Ontario in areas north of Thunder Bay, including Pickle Lake, Cat Lake, Webequie and Fort Albany.

Daytime highs between 29 and 31 C, and overnight lows between 17 and 19 C are expected starting Tuesday afternoon, possibly continuing for some areas on Wednesday.

Southern Ontario is not included in this warning, but highs of over 30 C are forecast for Wednesday, Thursday and Friday this week.

Environment Canada says extreme heat can affect everyone’s health and suggests residents check on older adults, those living alone and other at-risk people in person or by the phone multiple times a day.

The early signs of heat exhaustion include headache, nausea, dizziness, thirst, dark urine and intense fatigue.

People with signs of heat exhaustion should stop activity and drink water.

Signs of heat stroke include red and hot skin, dizziness, nausea, confusion and change in consciousness.

Heat stroke is a medical emergency. Call 911 or your emergency health provider if you, or someone around you, is showing signs of heat stroke. While you wait for medical attention, try to cool the person by moving them to a cool place, removing extra clothing, and applying cold water or ice packs around the body.

During a heat warning, residents should drink water often and before they feel thirsty to replace fluids. Close blinds, or shades and open windows if outside is cooler than inside. Turn on air conditioning, use a fan, or move to a cooler area of your living space.

People should move to a cool public space such as a cooling centre, community centre, library or shaded park, if their home is too hot. 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.

Lead photo: Quang Nguyen Vinh