The spring storm moving slowly across Colorado is expected to dump more than 2 feet of snow in parts the mountains by the end of Friday.
Depending on how slowly the system moves, the National Weather Service says higher elevations in Larimer and Boulder counties could see up to 3 feet of heavy, wet snow because of upslope winds. Mountains in western Colorado could get up to a foot.
The Front Range is expected to get from 2 to 4 inches of wet snow mixed with rain.
All the new snow will increase the danger of avalanches.
The Colorado Avalanche Information Center says conditions could quickly become dangerous in the northern mountains, as well as in the Sawatch and the Sangre de Cristo mountains.