Torrential rain causes evacuations and road closures, according to local media reports.

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BOULDER, Colo. — A Rocky Mountain storm system that dumped up to 10 inches over central Colorado has killed at least three people. Several cities and towns along Colorado's Front Range were bracing for more rain and flooding.

KUSA-TV reports one person was killed in the collapse of a home in Nederland, a mountain community about 20 miles north of Boulder, while Colorado Springs police said they found a second victim while patrolling west of the city. A third victim was recovered from a north Boulder home Thursday morning, Boulder County Sheriff Joe Pelle said.

Rain began early in the morning on Wednesday and continued throughout the day, becoming especially heavy in the evening, AccuWeather meteorologist Courtney Spamer says. Rain fell at nearly two inches pwer hour Wednesday evening and early Thursday, according to the Weather Channel. Boulder has picked up more than six inches of rain so far.

The University of Colorado Boulder campus was closed Thursday after a torrent of water from Boulder Creek flooding buildings. Officials also closed Boulder Valley and St. Vrain district schools. Residents of Fourmile Canyon near Boulder and Coal Creek Canyon, northwest of Denver, were under mandatory evacuation orders.

"I think we have a continually dangerous situation,'' said Pelle, who urged Boulder residents to stay home. "It's not a good day to travel. It's not a good day to risk your loved one's lives. It's a good day to hunker down."

Drivers of three vehicles had to be rescued from a ditch after a road near Highway 287 near Broomfield collapsed.

A firefighter was reported to be stuck in a tree in Lefthand Canyon in Boulder County after a "wall of water" 15 to 20 feet high roared through the canyon, according to the Boulder County sheriff's office. Officers on scene requested a dive team to help with the rescue.

Police scanners buzzed with emergencies as rescuers aided motorists caught in high waters. One officer told dispatchers about "banging inside the cars" as passengers sought help getting out.

Another reported a car submerged upside down, with at least one person missing.

WATCH: Live Video from KUSA-TV

Footage from KCNC-TV showed the dramatic rescue of a man from a car that was sitting upside down in a flooded creek in Lafayette. The man was pulled to safety as the creek slowly swamped his vehicle. Lafayette Battalion Chief Dan Garrett told

CNN that his crews pulled others to safety.

Near the town of Lyons, about 15 miles north of Boulder, rescuers repeatedly found themselves turned back by flooding St. Vrain Creek, where a dam failed near Pinewood springs early Thursday morning.

Tom Abbot, a nearby resident, said after rains began flooding the area and sent rocks and trees tumbling, he slept in his battered pickup truck Wednesday night.

Residents Jeremy and Molly Poore said they were woken by calls from anxious family members watching TV coverage of the flooding. Their rented home wasn't in danger, they said, but they worried about the home they had just considering buying in nearby Lyons. Authorities closed off access to that area early Thursday morning after reports of massive flooding.

The house, Jeremy Poole said, boasted riverfront views. "I bet it's not even there anymore," he said.

Colorado Department of Transportation workers said they saw water flowing over the road's 27-inch-high guardrails. Deputies and road crews were trying to access the area to check for stranded residents and damage.Nick Christensen with the Larimer County Sheriff's Office was following a deputy along state Highway 66 into Lyons when both full-sized SUVs started being pushed around by water running down the road.

"There were homes and businesses that were receiving significant impact," said Christensen. "It was flowing in waves down the road. There's definitely a lot of water."

Boulder Office of Emergency Management spokeswoman Gabrielle Boerkircher said volunteers all across the area were trying to help stranded people until emergency crews can arrive because many roads are impassable.

The Larimer County office of emergency information said an earthen dam in the Big Elk Meadows area southeast of Estes Park gave way and residents of Pinewood Springs and Blue Mountain were ordered to be ready to evacuate.

Residents of the Big Elk Meadows area were told by a recorded message they "should be seeking higher ground immediately."

The National Weather Service, citing Boulder officials, said multiple homes in the area have collapsed and urged people to move to higher ground.

The NWS issued a flash flood warning for Northern Jefferson and Boulder counties, saying that in many locations this is an "

The Weather Service said early Thursday that more than four inches of rain had fallen in some areas since noon Wednesday.extremely dangerous and life threatening situation."

"We've asked people in low-lying areas all through the county to evacuate," said Andrew Barth, another Emergency Management spokesman.

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BOULDER, Colo. — A storm blasted the area with more than seven inches of rain and touched off severe flash flooding Thursday, sweeping motorists from roadways, destroying a dam and killing at least two people.

KUSA-TV reports that one person was killed in the collapse of a home in Nederland.

Colorado Springs police officers found a second victim early Thursday while patrolling in a flood area west of the city.

Police scanners buzzed with emergencies as rescuers aided motorists caught in high wate. One officer told dispatchers about "banging inside the cars" as passengers sought help getting out.

Another reported a car submerged upside down, with at least one person missing.

Footage from KCNC-TV showed the dramatic rescue of a man from a car that was sitting upside down in a flooded creek in Lafayette. The man was pulled to safety as the creek slowly swamped his vehicle. Lafayette Battalion Chief Dan Garrett told

CNN that his crews also pulled to other people to safety from vehicles overwhelmed by floodwaters.

One firefighter was reported to be stuck in a tree in Lefthand Canyon in Boulder County after a "wall of water" 15 to 20 feet high roared through the canyon, according to the Boulder County sheriff's office. Officers on scene requested a dive team to help with the rescue, but none was immediately available locally.

"We have a lot of boat, but not divers," one officer told the radio dispatcher.

Near the town of Lyons, rescuers repeatedly found themselves turned back by floodwaters of the St. Vrain Creek.

Nick Christensen with the Larimer County Sheriff's Office was following a deputy along state Highway 66 into Lyons when both full-sized SUVs started being pushed around by water running down the road.

Colorado Department of Transportation workers said they saw water flowing over the road's 27-inch-high guardrails. Deputies

and road crews were trying to access the area to check for stranded residents and damage.

"There were homes and businesses that were receiving significant impact," said Christensen. "It was flowing in waves down the road. There's definitely a lot of water."

Boulder Office of Emergency Management spokeswoman Gabrielle Boerkircher said volunteers all across the area were trying to help stranded people until emergency crews can arrive because many roads are impassable.

Coal Creek Canyon northwest of Denver was closed because of a washed-out highway.

The Larimer County office of emergency information said an earthen dam in the Big Elk Meadows area southeast of Estes Park gave way and residents of Pinewood Springs and Blue Mountain were ordered to be ready to evacuate.

Residents of the Big Elk Meadows area were told by a recorded message they "should be seeking higher ground immediately."

The National Weather Service, citing Boulder officials, said multiple homes in the area have collapsed and urged people in the area to move to higher ground.

The NWS issued a flash flood warning for Northern Jefferson and Boulder counties, saying that in many locations this is an "extremely dangerous and life threatening situation."

The Weather Service said early Thursday that more than four inches of rain had fallen in some areas since noon Wednesday.

Meanwhile, about 400 students at the University of Colorado housing in Boulder were evacuated and classes canceled Thursday because of the flooding, Boekircher said.

"We've asked people in low-lying areas all through the county to evacuate," said Andrew Barth, another Emergency Management spokesman.

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BOULDER, Colo. — Areas in the vicinity of Boulder, Colo., are being hit by severe flash flooding early Thursday that has led to evacuations and killed at least one person, according to local media reports.

ABC's 7 News reported that torrential rain has closed roads and promoted evacuations. It reported that at least one person has been killed as a result of the floods but gave no further details.

The National Weather Service issued a flash flood warning for Northern Jefferson and Boulder counties, saying that in many locations this is an "extremely dangerous and life threatening situation."

The NWS, citing Boulder officials, said that multiple homes in the area have collapsed and is urging people in the area to move to higher ground. There are unconfirmed reports that a local dam had collapsed.

The Denver Post reported that mudslides and rockslides have hit several locations.

"The rains have been sitting over that area," Boulder Office of Emergency Management spokeswoman Gabrielle Boerkircher said.

The Weather Service said early Thursday that more than four inches of rain had fallen in some areas since noon Wednesday.

Boulder police dispatchers were receiving calls of flooding basements and homes and of flooded streets and submerged cars. Authorities said the flooding has made many Boulder streets impassable.

The Weather Service said that county officials reported some homes had collapsed in Jamestown, where dozens of people live, according to a report by The Denver Post.

Boerkircher told The Associated Press that one person was killed when a structure collapsed in Jamestown, but that she didn't have any other details because rescuers haven't reached the scene. She also couldn't confirm that any other buildings had collapsed.

"There are mudslides prohibiting us from getting to that area," she said.

The office said there have been no other reports of any deaths or injuries.

Meanwhile, about 400 students at the University of Colorado housing in Boulder were evacuated and classes canceled Thursday because of the flooding, Boekircher said.

"We've asked people in low-lying areas all through the county to evacuate," said Andrew Barth, another Emergency Management spokesman.

Contributing: The Associated Press

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