RENO, Nev. (AP) -- Yet another snowstorm pummeled parts of the West on Friday, snarling post-holiday traffic and darkening lights on Christmas trees, and freezing rain covered some Midwest highways with a dangerous sheet of ice.
Winter storm warnings were issued Friday for parts of Utah, Arizona, New Mexico, Colorado, Wyoming, Montana and the Dakotas, and a blizzard warning was in effect for the mountains of southwest Colorado.
"It's going to be a heck of a storm," said Chris Cuoco, senior forecaster for the National Weather Service in Grand Junction, Colo. "We're expecting significant snowfall in all the mountains of Colorado. Even the valleys are going to see 4-plus inches of snow."
Up to 20 inches of snow was forecast in parts of the Rockies, along with wind gusts of up to 80 mph.
In the Midwest, most streets and highways in the Chicago area were ice-glazed. The Eisenhower Expressway - Interstate 290 - was closed for a time because of the ice, but the temperature was rising above the freezing point by midmorning. The village of Lemont, Ill., shut down all its major intersections.
The full length of the Indiana Toll Road, more than 150 miles, was shut down for about two hours Friday morning because it was "an entire sheet of ice" with numerous accidents, said state Trooper William Jones. Indiana also closed a 10-mile section of Interstate 69 just north of Fort Wayne.
Utah officials shut down Interstate 84 at the Utah-Idaho state line Friday because of the weather, and some state roads were open only to vehicles with tire chains or four-wheel-drive. Colorado closed at least two mountain pass highways.
The mountains around Lake Tahoe received about 2 feet of snow, bringing totals at some resorts in the past two weeks to 10 feet.
"This is one of the snowiest Christmas holiday periods I can remember," said Kent Hoopingarner, general manager at Homewood Mountain Resort.
In New Mexico, San Juan County got up to 5 inches of snow for its first white Christmas in 11 years, the weather service said.
Nearly a foot of snow in the Salt Lake City area blacked out about 10,000 customers Thursday morning. Power was also knocked out in parts of Oregon on Thursday, affecting 19,000 customers of Portland General Electric, said PGE spokesman Steve Corson.
Farther north, the weight of snow, ice and water over the past week collapsed the roof of a high school in Olympia, Wash. There was severe water damage but no injuries, fire Lt. Ralph Dunbar said. In eastern Washington, Spokane reached a snowfall total for the month of 46.2 inches, a record for December, said Laurie Nisbet of the weather service.
Snow and ice weren't the only problems. The weather service confirmed that it was two small tornadoes on Christmas Eve that caused scattered damage in Alabama.
Slippery roads and cold have been blamed for seven deaths this week in Wisconsin; five in Ohio; four each in Indiana, Kentucky and Missouri; two in Kansas, two in Michigan, and one apiece in Illinois, Oklahoma, Iowa, Massachusetts and West Virginia.