Alberta Premier Rachel Notley said fire had destroyed or damaged an estimated 1,600 structures. Flames are being kept from the downtown area thanks to the "herculean'" efforts of firefighters, said Scott Long of the Alberta Emergency Management Agency. No injuries or fire related fatalities have been reported.

The fire appeared near the airport late yesterday where crews were onsite. All commercial flights in and out of Fort McMurray have been suspended. Unseasonably hot temperatures combined with dry conditions have transformed the boreal forest in much of Alberta into a tinder box.

Fort McMurray is surrounded by wilderness in the heart of Canada's oil sands- the third largest reserves of oil in the world behind Saudi Arabia and Venezuela.

An earlier order that had applied to almost 30,000 people, mostly on the city's south side, was extended to tens of thousands more as flames continued to make their way into the city yesterday.

The wildfire, whipped by unpredictable winds on a day of high temperatures, worsened dramatically in a short time and many residents had little notice to flee.
Alberta Premier Rachel Notley said officials were doing all they could to ensure everyone's safety and said they were looking into the possibility of an airlift for residents with medical issues.

Scott Long of Alberta Emergency Management says the flames had burned a number of structures, but couldn't say how many. Carol Christian's home was in one of the neighbourhoods under the order to leave. She said it was scary as she drove to an evacuation center with her son and cat.

"When you leave ... it's an overwhelming feeling to think that you'll never see your house again," she said, her voice breaking.
"It was absolutely horrifying when we were sitting there in traffic. You look up and then you watch all the trees candle-topping ... up the hills where you live and you're thinking, 'Oh my God. We got out just in time.'"

The main road into Fort McMurray, was closed at the southern entrance to the city after flames jumped the road. Pictures posted on Twitter showed long lines of traffic and skies darkened by thick smoke as flames licked the edges of roads.

Fort McMurray is the capital of Alberta's oil sands region and had a population of 61,000, according to the 2011 census. The Alberta oil sands are the third largest reserves of oil in the world behind Saudi Arabia and Venezuela.

Oil sands work camps were being pressed into service to house evacuees as the raging wildfire emptied the city. Most oil sands projects are well north of the community, while the worst of the flames were on the city's south side.

Officials were also evacuating non-essential staff at Suncor's base plant. It is 30 kilometres (18 miles) away and one of the closest facilities to the city. Spokesman Paul Newmarch said evacuees were moving into the plant's work camps.

Will Gibson, a spokesman for Syncrude, which also has a plant north of the town, was himself one of the evacuees heading north away from the flames. Gibson said he had to flee his neighbourhood via a grass embankment because the fire had already cut off the road at both ends.

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