Weeks after a raging wildfire forced them to evacuate their homes, Fort McMurray residents are being allowed to return in a staged operation starting today. But residents won’t be returning to business as usual: Some city services are closed, a boil-water advisory is in effect and smoke exposure is still a risk.

Open this photo in gallery: Fort McMurray firefighters fix a sign that reads "We Support Fort McMurray" on an overpass above Memorial Dr. in Fort McMurray, Alberta. Topher Seguin/Reuters 1 of 18

Open this photo in gallery: Mike Maloney and his wife Tessa Maloney, hug as they unpack to re-enter their home after being evacuated due to wildfires, in Fort McMurray, Alberta. Jason Franson/The Canadian Press 2 of 18

Open this photo in gallery: Fort McMurray residents drive along Memorial Dr. and head towards Fort McMurray, Alberta. Topher Seguin/Reuters 3 of 18

Open this photo in gallery: Pilar Ramirez cleans her home after returning as residents re-enter fire-ravaged Fort McMurray, Alberta. Codie McLachlan/The Canadian Press 4 of 18

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Open this photo in gallery: Destroyed buildings in the neighbourhood of Waterways are seen after wildfires forced the mandatory evacuation of Fort McMurray, Alberta. Topher Seguin/Reuters 5 of 18

Open this photo in gallery: Convenience store manager Sunny Katoch paints a welcome sign on the back door as residents begin to flood back into their city after being evacuated due to raging wildfires in Fort McMurray, Alberta. Topher Seguin/Reuters 6 of 18

Open this photo in gallery: Polo Quinones scrubs his home after returning as residents re-enter fire-ravaged Fort McMurray, Alberta. Codie McLachlan/The Canadian Press 7 of 18

Open this photo in gallery: Devastation from the wildfire that tore through the city is seen as residents re-enter fire-ravaged Fort McMurray, Alberta. Codie McLachlan/The Canadian Press 8 of 18

Open this photo in gallery: James Turingan, left, and Russell Boston survey the damage to their home as residents re-enter fire-ravaged Fort McMurray, Alberta. Codie McLachlan/The Canadian Press 9 of 18

Open this photo in gallery: Fort McMurray firefighters hang a Canadian flag on an overpass above Memorial Drive as residents are permitted to return to Fort McMurray, Alberta. Topher Seguin/Reuters 10 of 18

Open this photo in gallery: Boat and car destroyed by wildfire sit in the backyard of a house as residents begin to return to their homes after a massive wildfire in Fort McMurray, Alberta. Darryl Dyck/Bloomberg 11 of 18

Open this photo in gallery: Deer stands among trees scorched by wildfire as residents begin to return to their homes after a massive wildfire in Fort McMurray, Alberta. Darryl Dyck/Bloomberg 12 of 18

Open this photo in gallery: A man mows his lawn in the Lower Townsite neighbourhood as residents begin to return to their homes after a massive wildfire in Fort McMurray, Alberta. Topher Seguin/Reuters 13 of 18

Open this photo in gallery: Firefighters and RCMP officers greet Fort McMurray residents from an overpass on Highway 63 just outside Fort McMurray, Alberta. COLE BURSTON/AFP/Getty Images 14 of 18

Open this photo in gallery: Fort McMurray wildfire evacuees return to their home in Fort McMurray, Alberta. Darryl Dyck/Bloomberg 15 of 18

Open this photo in gallery: Service Master cleaners make their way to a bus to be sent to help clean up smoke damage inside a mall as residents begin to return to their homes after a massive wildfire in Fort McMurray, Alberta. Cole Burston/AFP/Getty Images 16 of 18

Open this photo in gallery: Adam Hussynec ,left, and Cody Burthell remove a fridge as they re-enter their home after being evacuated due to wildfires, in Fort McMurray, Alberta. Jason Franson/The Canadian Press 17 of 18