Accidents piled up as well Saturday morning, including a three-car crash on southbound Interstate 15 near 11400 South and a rollover on northbound Interstate 215 West near 3500 South, congesting the already slushy and slow morning traffic.
Troopers have kept busy on "lots of crashes," Utah Highway Patrol Trooper Lawrence Hopper said, but none has had serious injuries.
"People are slowing down," he said, "and the slower the speed the lesser the injury."
Rocky Mountain Power reported that as of 10 a.m., about 5,400 people were without electricity in Fruit Heights, Kaysville, Layton, Cottonwood Heights, Midvale, Sandy and Salt Lake City. As the lights came back on in those areas in the early afternoon, about 3,100 customers lost power in West Valley City and another 1,100 in Holladay.
As of 3 p.m., everyone had electricity restored, except for 341 customers in Cottonwood Heights and 210 customers in Salt Lake City, with no estimated time frame for the completion of the repairs.
Maria O'Mara of Rocky Mountain Power warns people that if they see any downed power lines, they need to call 911, then the power company. Just because a line isn't sparking, does not mean electricity isn't flowing through it, she said.
The heavy storm also creates avalanche danger. Most of the higher terrain in the northern Utah mountains, as well as the Skyline area mountains in central Utah, have a moderate to considerable danger for avalanches, a risk that may spike during heavy snowfall, according to the Utah Avalanche Center.
The wintry storm is expected to move out of Utah by Sunday afternoon, with partly sunny and warmer temperatures to follow.
The weather service forecasts a high of 32 degrees in Salt Lake City on Sunday, warming to 39 degrees Monday. Ogden is expected to have highs of 33 on Sunday and 37 on Monday.
Other temperature predictions for Sunday and Monday: 33 and 37 in Logan; 35 and 40 in Wendover; 33 and 37 in Provo; 32 and 37 in Duchesne; 40 and 45 in Moab; 50 and 57 in St. George.