Ontario Far North under heat warning, forest fire smoke

Heat warnings and special air quality statements are continuing for communities in Ontario's Far North on Wednesday.

The heatwave has brought temperatures in the low- and mid-30s with the humidity since Sunday.

Heat warnings in Ontario's Far North for Aug. 14, 2024 represented in red. (Environment Canada)

The air is expected to cool Wednesday night.

"Extreme heat can affect everyone’s health. The health risks are greater for older adults, infants and young children, pregnant people, people with physical and/or mental illnesses, and people with disabilities or mobility issues," Environment Canada said.

"Drink plenty of water regularly, even before you feel thirsty to decrease your risk of dehydration. Thirst is not a good indicator of dehydration."

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Meanwhile, smoke from several forest fires has been lingering over the area, causing poor air quality.

As of 1:45 p.m. Aug. 14, there are 48 active wildfires in northern Ontario.

Ontario map of active wildfires as of Aug. 14, 2024 (Environment Canada)

"Smoke aloft from a combination of forest fires in the northern Prairies and northern Ontario may dampen maximum temperatures this afternoon," Environment Canada said in a weather alert.

The special air quality statements are in effect for the areas of Sachigo Lake to Webequie and north to Hudson Bay.

Area of Ontario's Far North under special air quality statement due to forest fire smoke and pollution. Aug. 14, 2024 ( Google maps)

Some tips to reduce exposure to wildfire smoke:

• Stay inside in a cool and ventilated place
• Avoid opening windows and letting in polluted air
• Visit an air-conditioned public place
• Use a well-fitted respirator-type mask

"If you must spend time outdoors, a well-fitted respirator type mask (such as a NIOSH-certified N95 or equivalent respirator) that does not allow air to pass through small openings between the mask and face, can help reduce your exposure to the fine particles in smoke," said the Ontario Ministry of the Environment, Conservation and Parks.

"These fine particles generally pose the greatest risk to health. However, respirators do not reduce exposure to the gases in wildfire smoke. It is important to listen to your body and reduce or stop activities if you are experiencing symptoms."