"It's really the combination of the marine air in the lower 500 meters or so of the atmosphere and it's being overrun by this dissipating distant wildfire smoke, which is 5,000 to 10,000 meters above sea level". "We're more cautious than we have been in the past".
The Chuckegg Creek fire raging near High Level won't stop growing.
Gagnon said a new fire around Steen River, which is also in the High Level forest area, grew 170 square kilometres in its first day. "The average speed would then be around 23 metres per minute".
So when it comes to your safety, our second Meteorologist Michael Kuss says you don't have to worry as there are very small traces of wildfire smoke in the air.
At least 10,000 people have been evacuated from regions across Northern Alberta as the blazes continue to burn. "More than 600 of our neighbours had to leave their homes".
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The province has seen more than 500 wildfires since March 1, officials said.
The goal is to get residents of High Level home by the weekend, said the joint statement. "However, the Stampeders and CFL are closely monitoring the situation and will make an announcement if there's any change".
Meanwhile, people in Edmonton spent most of Thursday dealing with a thick, smoky haze that turned otherwise blue skies an eerie grey-orange.
Those most affected by wildfire smoke and air pollution are seniors, pregnant women, children, smokers, and people with heart and lung conditions.
A special air quality statement from Environment Canada, Alberta Environment and Parks, Alberta Health and Alberta Health Services warned of symptoms such as increased coughing, throat irritation, headaches or shortness of breath due to the drifting wildfire smoke which originated in the province's north.