N.W.T. fire officials are warning of a "major wind event" expected in some areas of the territory on Friday, along with warm, dry conditions — significantly raising the risk of wildfire.

Bull trout, which are technically char, mostly inhabit cold and pristine snow-melt-fed waters. Changes in water quality and temperatures challenge the future for this species in Alberta.

An additional 12,000 people in northwest Alberta have been placed on evacuation alert as an out-of-control wildfire in the area grows.

A section of Highway 1 just north of the Northwest Territories-Alberta border is reduced to one lane after it was excavated to deal with excess water. A 3.5-metre wide trench was dug across the road to assist with drainage of the flooded area, according to an email from the Department of Infrastructure on Tuesday.