Tuesday after crashing during a training run on the superpipe in Park City, Utah.
In an email to The Associated Press, Peter Judge, CEO of the Canadian freestyle team, confirmed a report in the Toronto Globe and Mail that Burke was in a coma but didn't know what that meant for her ultimate recovery. He told AP he didn't expect any updates until early Wednesday.
"What I've heard, relatively directly, is that she landed a trick down in the bottom end of the pipe, and kind of bounced, from her feet to her head," Judge told the Globe and Mail. "It wasn't anything that looked like a catastrophic fall, so I'm a bit mystified."
A spokeswoman at University Hospital in Salt Lake confirmed Burke had been admitted and was being evaluated.
Andy Miller, spokesman at the Park City Mountain Resort, said the accident happened early in the afternoon.
"She was stabilized there at the scene by resort mountain patrol, who took her to base patrol, where she was flown to the hospital in Salt Lake," Miller said.
He said the halfpipe was the same one where snowboarder Kevin Pearce was critically injured during training on Dec. 31, 2009. Pearce suffered traumatic brain injuries but has since recovered and returned to riding on snow last month.
Burke's husband, Rory Bushfield, also put out a message on Twitter seeking someone with a private jet who might help him and Burke's mother expedite a trip from Vancouver to Salt Lake City.
"Sarah is a very, very strong human and she will be fine," Bushfield told The Vancouver Sun