For the first time this season the National Weather Service office in Boulder has issued an advisory because of snow.
A Winter Weather Advisory will be in effect from 9 pm Tuesday until 12 pm Wednesday for the Front Range Mountains, including the Eisenhower Tunnel, Mount Evans, Breckenridge, Loveland Pass, Berthoud Pass and Winter Park.
Areas above 10,000 feet could see 5-10 inches of snow over the next 24 hours with the highest totals on east-facing slopes.
Travel may become difficult at times on area roads including portions of Interstate 70, Highway 6 and Highway 40.
Gusty winds up to 20 mph could reduce the visibility down to a quarter-mile at times.
Snow is also expected to be heavy at times in the southwest and southern mountains of Colorado where several inches of snow could slow travel.
A Winter Weather Advisory has been issued for places such as Lizard Head Pass, Red Mountain Pass and Slumgullion Pass between 8pm Tuesday and 9am Wednesday for up to 5 inches of snow.
Pikes Peak, the Wet Mountains and Sangre de Cristo Mountains west of Pueblo, as well as places like Monarch Pass, Fremont Pass and Wolf Creek Pass are under a Winter Weather Advisory from 9pm Tuesday until 6pm Thursday for 5 to 10 inches of snow and isolated higher totals.
A chilly rain is expected for the rest of the region but some flakes could mix in at times even at elevations as low of 7,500 feet.
Some of the Front Range foothills above 7,500 feet could see minor accumulations.