Though the snow was a welcome sight for the teams preparing the ski course, it proved to be a problem for the skiers trying to practice. The fog and continuing snow caused visibility problems.
Cook appeared to be fine, but took a few minutes to gather herself and stand up. Medical officials then had her sit back down on the snow. She was taken off the mountain by helicopter, which is a standard procedure for all evacuations on the mountain.
She was only the second to go down the course after Italian Lucia Recchia. Officials moved the training run to Friday.