"Interstate 15 in Utah County became our hot spot for crashes with the steady snow falling on the existing ice," said Utah Highway Patrol Sgt. Todd Royce.
Between 6 a.m. and noon, UHP troopers worked 59 crashes and slideoffs in Salt Lake County and another 30 in Utah County, with a few more accidents reported in Weber and Davis counties.
"It [was] a challenge for us to get troopers out to all the crashes, it was been so busy out there," Royce said.
Another bout of snow fell through the afternoon, bringing snow totals to 2.5 to 3 inches throughout most of the northern Wasatch Front, according to NWS. Centerville and Ogden received 3.5 inches. In the mountains, the biggest dump was in Alta, which got 11 inches of powder in some spots, with 5 to 7 inches on most of the mountain and at other Salt Lake County ski resorts. The Canyons got about 3 inches, and 4 inches fell at Snowbasin.
High temperatures along the northern Wasatch Range were predicted to range into the mid-30s on Thursday. Overnight lows were to be in the mid-20s.
The second storm system, expected to arrive early Thursday, was to be stronger. Up to 4 inches of snow in the valleys and 6 inches in the mountains were to fall, with 10-20 mph winds adding to the icy havoc by Thursday night. That storm was forecast to hit the Interstate 15 corridor especially hard.
Southern Utahns were sitting out the latest wintry weather, expecting highs in the mid-50s and overnight lows around 30 degrees. While cloudy skies were on the horizon, no appreciable snowfall was in sight.
The Utah Avalanche Center began Wednesday with "moderate" risk ratings for potentially deadly snowslides for all the state's mountains, but warned the danger would rise to "considerable" for all districts on Thursday.
The storms continued to reduce valley pollution levels, though, with the Utah Division of Air Quality predicting "green," or healthy grades for all air monitoring stations by Thursday morning.
For more extensive forecast information, visit the Tribune's weather page at http://www.sltrib.com/weather.
Twitter: @remims Road Weather Highlights through 7 P.M. Wednesday •
I-80 over Parley's Summit will see periods of light road snow/slush between 6 A.M. and 4 P.M. Wednesday.
Valley Routes between Salt Lake and Idaho will see periods of light road snow/slush between the following times:
Cache Valley 5 a.m. to 4 p.m. Wednesday
I-15 from Brigham City to Idaho 4 a.m. to 4 p.m. Wednesday
I-15 from Brigham City to Bountiful 5 a.m. to 4 p.m. Wednesday
I-15 from Bountiful through Salt Lake 6 a.m. to 4 p.m. Wednesday
Utah Department of Transportation