Torrential rains and widespread flooding throughout southern Alberta on Thursday washed out roads and bridges, sent residents scurrying for safety, and delivered up surreal scenes of cars, couches and refrigerators just floating away.

The RCMP put out a call for help to the Canadian Armed Forces, which sent in two helicopters and a Hercules aircraft to help extract people stranded by water.

Officials with the City of Calgary said as many as 100,000 people in low-lying neighbourhoods could be forced from their homes due to heavy flooding, an evacuation that would take place in stages over the next few days.

Bruce Burrell, director of the Calgary Emergency Management Agency, said water levels on the Bow River aren't expected to subside until Saturday afternoon.

"Depending on the extent of flooding we experience overnight, there may be areas of the city where people are not going to be able to get into until the weekend," he told a news conference.

Burrell said they suggested that workers in downtown Calgary, which borders on the river, leave work early Thursday if they live in threatened areas, so they could prepare to evacuate.

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  • Emergency Declared In Southern Alberta After Heavy Flooding

    Houses damaged along the edge of Cougar Creek are shown June 20, 2013 in Canmore, Alta. Widespread flooding caused by torrential rains washed out bridges and roads prompting the evacuation of thousands.

  • Emergency Declared In Southern Alberta After Heavy Flooding

    Residents watch flooding along Cougar Creek June 20, 2013 in Canmore, Alta. Widespread flooding caused by torrential rains washed out bridges and roads prompting the evacuation of thousands.

  • Emergency Declared In Southern Alberta After Heavy Flooding

    Residents watch the flooding Cougar Creek as it takes out Eagle Terrace Road and nears the top of the Elk Run Blvd Bridge June 20, 2013 in Canmore, Alta. Widespread flooding caused by torrential rains washed out bridges and roads prompting the evacuation of thousands.

  • Emergency Declared In Southern Alberta After Heavy Flooding

    Houses damaged along the edge of Cougar Creek.

  • A lone truck sits submerged in the flood waters near downtown High River, Alta. on Thursday.

  • Homes along Cougar Creek in Canmore, Alta. barely hang on as the town struggles to deal with flooding Thursday.

  • A front end loader carries residents after they were rescued from the flood waters in High River, Alberta.

  • A kayaker paddles down a flooded street in High River, Alberta on Thursday.

  • Cars are submerged by the flood waters in High River, Alberta on Thursday.

  • Kevan Yaets swims after his cat Momo to safety as the flood waters sweep him downstream after submerging his truck in High River, Alberta on Thursday.

  • A woman is rescued from the flood waters in High River, Alta. on Thursday.

  • Kevan Yaets crawls out the back window of his pick up truck with his cat Momo as the flood waters sweep him downstream after submerging his truck in High River.

  • A helicopter carrying residents lands on a road in High River, Alta., Thursday.

  • Crystal Poirier, Roger Poirier

    Roger Poirier, holds his family's cat, Smartie, as his wife Crystal looks on after rescuing it from their flooded house in High River, Alta., Thursday.

  • Cars and homes are submerged in flood waters in High River.

  • Rescuers looks for stranded residents in High River, Alta. on June 20, 2013 after the Highwood River overflowed its banks.

  • A shot of the homes along Cougar Creek.

  • Semi truck sit idle to the Trans-Canada Highway in Canmore, Alta. on Thursday June 20, 2013. Calgary and most of southern Alberta are being hammered by rain that has washed-out roads and bridges, caused mudslides and closed major highways.

  • A flooded residence in High river, Alta. Heavy rains have caused flooding, closed roads, and forced evacuation in High River, Alta., Thursday, June 20, 2013.

  • A front end loader carries people to safety from the flood waters in High River, Alta. on June 20, 2013 after the Highwood River overflowed its banks.

  • Kevan Yaets swims after his cat Momo to safety as the flood waters sweep him downstream and submerge the cab in High River, Alberta on June 20, 2013 after the Highwood River overflowed its banks. Hundreds of people have been evacuated with volunteers and emergency crews helping to aid stranded residents.

  • A resident is comforted by rescuers as she clutches her dog after being retrieved from the flood waters in High River, Alta. on June 20, 2013 after the Highwood River overflowed its banks.

  • Bragg Creek Flood 2013 House Breaking

    A video of a house shattering against the bridge during the first day of the 2013 flood in Bragg Creek. I offer my sincerest condolences to those who lost th...

  • A lone truck sits submerged in the flood waters near downtown High River, Alta. on June 20, 2013 after the Highwood River overflowed its banks.

  • Krystal Lelond of Black Diamond clutches her cat Pipi after being evacuated from her home after the Sheep River overflowed its banks.

  • An elderly woman is rescued from the flood waters in High River, Alta. on June 20, 2013 after the Highwood River overflowed its banks.

  • Debris and water pours across the Trans-Canada Highway as Canmore struggles with flooding.

  • A woman wades through the flood waters in High River, Alta. on June 20, 2013 after the Highwood River overflowed its banks.

  • Flooding in Black Diamond

  • This is the view of the bridge over the Highwood. Normally there is a couple metres clearance below it.

  • A kayaker paddles down a flooded street in High River, Alta. on June 20, 2013 after the Highwood River overflowed its banks.

  • One of several rock slides blocking #hwy40 in Kananaskis. No access to Kananaskis village.

  • Look at the flooding in #lethbridge !! This street has been shut down

  • Residents wade through flood waters after an evacuation order following heavy rains caused flooding, closed roads, and forced evacuation in High River.

  • A helicopter carrying evacuated residents lands on a road in High river, Alta. Heavy rains have caused flooding, closed roads, and forced evacuation in High River, Alta., Thursday, June 20, 2013.

  • The Bow river swells over its banks in downtown Calgary, Alta. Heavy rains have caused flooding, closed roads, and forced evacuation in Calgary, Alta., Thursday, June 20, 2013.

  • The Bow river swells over its banks in downtown Calgary, Alta. Heavy rains have caused flooding, closed roads, and forced evacuation in Calgary, Alta., Thursday, June 20, 2013.

Other workers were advised to consider staying late so as to lighten the rush-hour load on roads that might be needed for evacuations. But as the evening progressed, many downtown neighbourhoods were ordered evacuated, and there was fear that many businesses and restaurants would be vulnerable to flooding.

It also raised the possibility that downtown Calgary could resemble a ghost town on Friday.

Evacuees were being asked to stay with friends or relatives, though recreation centres were being set up to accommodate those who had no place to go.

They were also asked to mark their front doors with a giant "X" so that first responders wouldn't have to stop at homes that were already emptied.

The Calgary Zoo, located on St. George's Island, shut down in the afternoon and said it would also be closed Friday.

"Rest assured Animal Care are working closely with our facilities team to ensure the safety of all of our animals during this period of flood risk and are following our established emergency protocols," the zoo said on its website.

The Bow River Basin was battered with up to 100 mm of rain.

There were flashpoints of chaos from Banff and Canmore and Crowsnest Pass in the Rockies, to Calgary and beyond in the north and south to Lethbridge.

"I woke up at about three o'clock in morning to the sound of this kind of rumbling and it was the creek," said Wade Graham, a resident of the mountain town of Canmore, west of Calgary.

"At first it was just intense, pretty powerful, amazing thing to watch. As daylight came, it just got bigger and bigger and wider and wider, and it's still getting bigger and bigger and wider and wider.

"All you can hear is like boulders and trees. I watched a refrigerator go by, I watched a shed go by, I watched couches go by. It's insane."

The flooding was particularly destructive in communities just south of Calgary such as High River, Turner Valley and Black Diamond, where the Highwood River swept away two people.

"One female adult had been stranded on a trailer and also a second adult male had been stranded on a nearby flatbed," said Cam Heke of STARS air ambulance.

"We did respond to the area. The female adult was no longer on the trailer and was missing. We did conduct a search along the river and we were unable to locate that missing person.

"However, the male adult was on the trailer and local emergency services with another helicopter organization ... were able to rescue that man."

In High River, where residents were under a mandatory evacuation order by late Thursday, the water trapped residents in their cars and forced others to flee to the rooftops of their homes. Streets became tributaries, swamping vehicles.

Randy Livie said he came into town to help a friend and almost didn't get out.

"It was over my hood," he said. "There was a jeep in front of me and he stalled out.

"There was a minivan that went in front of me. He stalled out. This other car he came in and he started floating away he bailed out. He had crutches. A truck pulled up and helped him out. It's just wild down there."

The river carried boats and trees into bridge abutments, he said.

High River Mounties were asking that people with motorboats help rescue at least a dozen stranded homeowners.

"We have people on their rooftops who were unable to evacuate fast enough," said RCMP Sgt. Patricia Neely.

Town spokesperson Joan Botkin said the rescue boats were struggling with a strong current, but added, ``that's our priority. Right now it is 'Save the people. Get the residents out of there.'''

Danielle Smith, a Highwood resident and Wildrose Opposition leader in the legislature, said she and other residents frantically sandbagged around the hospital, but could not keep water from rushing past the doors, forcing patients to higher floors.

"I've been talking to people who have been here for 35 years or more who saw the 2005 flood, who saw the 1995 flood, and say this is way worse," Smith told CHQR radio station in Calgary.

Alberta Health Services said the emergency department in High River had been closed, though patients already in the hospital were safe and being cared for.

Residents in a seniors care facility were told to leave. Even the original evacuation centre had to be moved as floodwaters threatened.

The province reported that 12 communities were under states of emergency.

Environment Canada issued a rainfall warning for the affected areas, estimating as much as 100 millimetres more rain could fall in the next two days.

The Alberta Energy Regulator reported flooding may have caused a sour gas leak near Turner Valley. The flow of the toxic gas was turned off, but late Thursday a small amount was still seeping into floodwaters submerging the line. The Alberta Energy Regulator said public safety was not threatened.

In the mountain parks, mudslides forced the closure of the Trans-Canada Highway, isolating Banff and Canmore. Campers at Two Jack Lakeside campground were moved to higher ground.

Highways north and south of Banff were also shut down. Later in the evening, the Trans-Canada at the Norquay interchange was opened to single-lane westbound traffic to Lake Louise as well as Field and Golden in B.C.

The impact was definitely being felt in British Columbia, where highways around New Denver, Kaslo and Radium were closed due to washouts.

In Canmore, some homeowners saw the raging Cougar Creek eat away half their backyards, leaving behind crumbling wooden stairwells and twisted fences jutting out over torrents of water. Power and gas were out in some parts of town.

Parks Canada spokeswoman Michelle Macullo said people caught inside the park didn't really have many options.

"Right now, if people are in Canmore, they can get to Banff. People from Banff can get to Canmore," she said. "We just have to wait to see what the weather presents."

A mandatory evacuation order was in effect for Bragg Creek.

In Lethbridge, a few neighbourhoods were evacuated and city officials urged parents to pick up their children early from school. They expected the Oldman River would rise and cut off travel across the city.

In Crowsnest Pass and Okotoks, some residents were ordered out. In Sundre, 80 km northwest of Calgary, dozens of homes were under mandatory evacuation order along both sides of the swollen Red Deer River.

Red Deer itself declared a state of emergency late Thursday following a flood warning that was issued upon receiving notice that Alberta Environment is to release a significant amount of water from the Dickson Dam.

Water levels are expected to reach their maximum around noon on Friday.

Municipal Affairs Minister Doug Griffiths said the province was responding to requests as they came in.

"The municipalities have asked for no extra equipment or resources except in relation to some evacuations, which we've managed to acquire a few helicopters to help with those isolated evacuations," he said.

Premier Alison Redford was returning home to Alberta from a conference in New York.

"I plan to visit the affected areas as soon as possible on Friday to see the situation firsthand and to thank those who have been working so hard at keeping everyone safe," she said in a news release.

Prime Minister Stephen Harper issued a statement saying the federal government would offer "any and all possible assistance to the Province of Alberta in response to the situation."

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Wildrose Leader Danielle Smith tweeted this photo of the rising waters of the Highwood River.

"This is the view of the bridge over the Highwood. Normally there is a couple metres clearance below it. #ableg #wrp"

southern alberta flooding

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You can find updates on various communities and their flood status at Alberta Emergency Alert http://www.emergencyalert.alberta.ca/

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Cougar Creek in Canmore is completely overrun by floods. High River, Black Diamond and Calgary are also facing quickly rising water levels. The latest on evacuations and warnings can be found in our story.

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From the Alberta Emergency Alert:

All residents in north west, south west and north east High River are under mandatory evacuation. Crews are working to reach residents in the Vista Mirage area. Information will be posted on the High River website at www.highriver.ca.

Evacuate immediately. Please go to Highwood High School on 12th Ave where the emergency evacuation centre has been opened.

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From Alberta Emergency Alert:

There is localized flooding in Town, beginning near the Foothills Lions Campground. Hwy 22 is closed near that location. Residents west of 1st St SW are being evacuated to the Reception Centre (Oilfields Arena). Power outages may follow. The Water Treatment Plant has been shut down due to flood & safety concerns. Residents are requested to conserve water.

Door to door notification of the evacuation is taking place. Donations of towels and blankets can be made at the Arena. Food donations may be required later in the day. The town is currently investigating sources of bottled water. More information.

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From the City of Calgary:

The decision was made by Deputy Mayor Richard Pootmans and Ald. John Mar to declare a SOLE based on the potential severity of the incoming high river flows in conjunction with expected heavy rainfall. The City of Calgary has begun to implement its flood response plans with the deployment of sandbags and temporary dams at key locations to protect property and infrastructure. The City is working to ensure the safety of Calgarians and asks for their patience and cooperation during this time. Citizens are reminded to: · Stay away from rivers and creeks as the water is rising and moving quickly, and banks may be unstable. · Avoid storm water ponds and storm drains, and do not let children play near them. · Do not drive through flooded areas such as underpasses. · If you experience basement seepage or overland flooding, call 3-1-1 to report. · If you or someone else is in imminent danger, call 9-1-1. Remember that 9-1-1 is for emergencies only; please use 3-1-1 for reporting non-emergency issues.

· Monitor local media and City of Calgary messages. For more information on flooding, visit calgary.ca/flooding.

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cougar creek

Photo: Wade Graham, Facebook

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Cougar Creek threatens homes with its mighty surge.

Video: Wade Graham, Facebook

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cougar creek canmore

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From Alberta Emergency Alerts:

There is a hazardous materials release threatening life and the environment. An sour gas pipeline rupture has caused a release of H2S in the Town of Turner Valley. Residents are ordered to protect in place. Emergency crews have evacuated the affected areas and will continue to monitor.

Instructions:

Move indoors and stay indoors. Prepare for possible evacuation. Seek medical attention if you experience breathing difficulties. Follow the directions of local authorities.

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"The City of Calgary has declared a state of emergency as expected heavy rainfall combined with the potential of incoming high river flows could become severe.

The city is implementing its flood response plan with the deployment of sandbags and temporary dams to protect property and infrastructure.

Calgarians are advised to stay away from rivers and creeks as rising water may makes banks unstable.

Driving through flooded areas such as underpasses or children playing near storm water ponds and drains should also be avoided."

More here.

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cougar creek

Photo credit: Lauren Wheeler

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Turner Valley, a community southwest of Calgary, was placed under an emergency alert Thursday after a sour gas pipeline ruptured. The alert urged people to move indoors and to prepare for a possible evacuation.

What is sour gas, exactly, and what's the harm? Read more here.

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Our friends up the hill got in a bit of a pickle today when they headed to Canmore to cover the flooding.

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The Town of High River is now under an emergency evacuation alert. There is extremely dangerous and rapid flooding occurring in High River. Authorities are warning residents to move to high ground.

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There is a threat of extremely dangerous and rapid flooding in the County of Lethbridge. The County of Lethbridge declared a local state of emergency at 11:10 a.m. and issued an evacuation order for residents living in the Oldman River valley.

An evacuee reception centre is at the County Administration building at #100, 905 4th Avenue South downtown.

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