Updated 9:15 p.m. ET
SNOQUALMIE PASS, Wash. A woman who had been buried in five feet of snow has died, and one man was still missing Sunday morning after a pair of spring avalanches struck separate groups hiking in the mountains east of Seattle, authorities in Washington state said.
Sgt. Katie Larson, with the King County Sheriff's Office, said a team of rescuers worked through the night in blizzard-like conditions to carry the female snowshoer off the mountain just after midnight.
She was not moving and had been in and out of consciousness. Medics confirmed that she had died when they reached the base of the mountain, Larson said.
"The conditions yesterday were horrific," Larson said Sunday. "It took 25 rescuers about five to six hours" to bring her off the mountain in a sled.
Larson told CBS News correspondent Carter Evans one of the hikers was carrying a GPS, which was very helpful in finding them.
"We were able to download that information. The avalanche carried them about 1279 feet at 53 miles an hour," she said.
The woman, whose identity was not known, had been hiking with her dog near a group of a dozen other people Saturday afternoon when an avalanche hit Red Mountain near Snoqualmie Pass east of Seattle.
She had been buried in five feet of snow but was dug out with the help of a group of a dozen snowshoers, who had also been caught in the avalanche.
Members of the group told authorities that it took them 45 minutes to find the woman. They dug her out of five feet of snow. "They did their best to try to warm her up," Larson said.
Meanwhile, the search for a 60-year-old hiker who was swept down the mountain in a separate avalanche at Granite Mountain Saturday was suspended indefinitely due to the poor weather conditions.
"There was a heavy snow dump last night, and conditions are still very hazardous," Larson said.
The man, from Kent, Wash., was with two other friends when the avalanche carried them more than 1,200 feet down the mountain. The two friends suffered injuries that were described as not life-threatening. One of them was taken to a hospital, but Larson did not know his condition.
The avalanches occurred as heavy snow fell near Snoqualmie Pass.