The southern half of New Brunswick is under a heat warning.
Environment Canada issued the yellow-level warning Tuesday.
According to the forecast, a hot and humid air mass is expected to move through the region Wednesday, bringing temperatures up to 33 degrees before the humidex.
With the humidex, it could feel like 36 to 39 degrees.
Nighttime lows are also forecast to stay warm for eastern areas of the province, providing little to no relief.
Temperatures and humidex values are expected to be lower by Saturday, though some areas could see warning-level conditions continue.
Environment Canada is advising people to protect themselves from extreme heat, including heat exhaustion and heat stroke.
Check on older adults, those living alone and other at-risk people.
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 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 outside is cooler than inside.
Turn on 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.


