Thousands Are Without Power in California and Nevada Amid Heavy Snowfall

Thousands of residents were left without power, and life came to a standstill for many in the Sierra Nevada region on Saturday after a winter storm dumped as much as two feet of snow overnight and created treacherous conditions.

About 49,000 customers in Nevada and California were without electricity on Saturday morning, according to PowerOutage.us. With whiteout conditions in the mountains, ski resorts in the Lake Tahoe area paused operations. And highway officials shut down Interstate 80, the main artery that traverses the Sierra Nevada over Donner Summit, a key trucking route from the San Francisco Bay Area. Traffic cameras revealed semi trucks parked alongside the highway, waiting out the overnight closure.

​​California Highway Patrol said there was no estimated time of reopening the freeway.

The Central Sierra Snow Laboratory, a research station located atop Donner Summit, reported that 20.7 inches of snow had fallen as of Saturday morning, and that 39.8 inches had fallen over the past 48 hours. Palisades Tahoe, a resort that closed ski area operations on Saturday across all terrain, reported 24 inches of new snow in the past 24 hours.

Yosemite National Park remained closed at least through noon Sunday, park officials said.

In the eastern slopes of the Sierra Nevada, the huge mountain range that runs along the spine of California, forecasters rated the avalanche danger as high, and they expected avalanche hazards to worsen throughout the day because of the new snow and continued winds. Overnight, winds reached as high as 171 miles per hour.

Several avalanches were reported in the backcountry on Friday, according to public observations on the Sierra Avalanche Center website, including at least one partial burial — a skier was caught when snow buried him up to his shoulders, but he was dug out about 10 minutes later. There were no injuries or fatalities reported.

In the morning in South Lake Tahoe, Calif., before snow plows could reach residential streets, some local residents had to fend for themselves to dig out amid the steady snowfall.

Autumn Worden, 28, plowed her four-wheel drive Subaru through deep trenches of snow. “I was rocking and rolling getting out of my neighborhood,” said Ms. Worden, a barista at a coffee roastery in Stateline, Nev., just east of South Lake Tahoe.

“I made it to work though,” she said, adding that there was about a foot of snow on the roads when she headed out this morning.

Meteorologists began sounding the alarms earlier this week about “life-threatening blizzard conditions” expected through Sunday in the Sierra Nevada.

Some residents, however, were determined not to let the snow disrupt their plans.

Brendan Madigan, owner of Alpenglow Sports, an outdoor gear shop in Tahoe City, will not be closing his store. “We take a lot of pride in being open,” he said. “We feel like we’ve got hardy customers — it’s the mountains — and we have a responsibility to be here if people need us.”

Mr. Madigan said many recent customers in the store have been making storm-specific purchases. “Most people are doing retail therapy because the ski area is closed,” he said.