PORTLAND, Ore. (AP) - Snow, ice and shivering cold blasted normally mild cities from Seattle to Las Vegas to San Francisco on Tuesday as the winter weather sweeping across the U.S. West shuttered schools, made travel treacherous and closed all roads in Yosemite National Park.
Winter storms have been hitting the West for several days and brought a surprise dusting to peaks overlooking San Francisco - the city's first notable snow in eight years. Yosemite's ski area closed, restaurants had shorter hours and shuttles were not running because of snow-covered roads.
"It's beautiful and we certainly need the snow, but we're asking people to stay indoors," park spokesman Scott Gediman said. "As the weather improves, we'll plow roads and assess the situation."
California is still recovering from a drought that led to tight water restrictions and contributed to severe wildfires.
Temperatures plunged into the teens in Seattle overnight, making roads slick, and schools throughout the area shut down for a second day. Unusual snow fell a day earlier, causing crashes and canceling flights, and lower-than-normal temperatures were expected throughout the week.
Rare snow and cold also walloped Portland, Oregon. Residents awoke to unexpected overnight snowfall that closed schools and left some higher elevation roads slick for the morning commute.
In Nevada, the National Weather Service reported light snow in northwest Las Vegas. More than 3 feet of snow has fallen at the top of some Lake Tahoe ski resorts in the last 24 hours, bringing the total to 6 feet since storms began Saturday.
An 80-mile stretch of westbound Interstate 80 in the Sierra Nevada closed for the second day, from the California-Nevada line just west of Reno to Colfax, California, east of Sacramento.
Montana residents used to the cold braved the third day of subzero temperatures and biting wind chill.
Wind and fresh snowfall led officials to warn of high avalanche danger in southwestern Montana near Yellowstone National Park, and an avalanche warning was in place for the Centennial Mountains in eastern Idaho.
The region, which also includes northwestern Wyoming, was expected to receive up to 8 more inches of snow in the mountains by today.
For much of the rest of Montana, weather service officials warned of wind chills between 20 and 35 degrees below zero through today. In those conditions, frostbite can set in within 10 minutes, officials said.
Those who ventured out in downtown Helena during a break in the snow shrugged off the minus 4 degree temperature, calling it one prolonged cold snap in what's been a relatively mild winter for Montana.
"It's inconvenient, that's all," said Bruce Schwartz, a 62-year-old retiree. "I'm going to work out and spend a lot of time soaking in the hot tub."