Rescuers searching for nine missing skiers trapped in an avalanche near Lake Tahoe have been hamstrung in their search efforts Wednesday morning as the area was slammed with nearly 2 feet of snow. The Boreal/Castle Peak trailhead showed no signs of rescue activity,

More avalanche warnings were issued on Tuesday morning across the region, including in the greater Lake Tahoe area. Officials warned that rapidly accumulating snow, weak layers within the existing snowpack and gale-force winds had created conditions capable of burying or injuring people.

Sixteen backcountry skiers were caught in an avalanche Tuesday near Lake Tahoe as heavy snow fell across the Sierra Nevada, officials said. At least six survived, but 10 were still unaccounted for as of Tuesday afternoon.

Authorities say 15 people – nine women and six men – were on a three-day skiing trip. Here's what we know so far about the victims and survivors of the avalanche.