New snow during the past 24 hours ranged from 1 to 3 inches. Storm snow from the past week, which amounted to a foot or more in many locations, fell onto a variety of weak surface snow layers. Persistent Slabs breaking into the old snow layers are the most dangerous avalanche problem. Sub-zero alpine temperatures and light snow are expected on Sunday.
The avalanche danger for the Front Range zone is CONSIDERABLE (Level 3) near and above treeline and MODERATE (Level 2) below.
New snow reports ranged from 1 to 3 inches during the past 24 hours. Storm snow from the past week, which amounted to a foot or more in many locations, fell onto a variety of weak surface snow layers, including basal facets and numerous buried facet/crust combinations. On Wednesday and Thursday there were natural and human triggered avalanches reported from the Berthoud Pass and Loveland Pass areas. Most of these broke at the base of the new snow, but with fresh slabs 1 to 2 feet thick, these slides are big enough to hurt you. Persistent Slabs are the primary avalanche problem on Saturday. Areas of greatest concern are aspects facing northwest through north to east, near and above treeline, where there are deeper buried weak layers. If you trigger a slide into one of these old snow layers or weak snow near the ground, the result will be a large and dangerous avalanche.
Sub-zero alpine temperatures and light snow are expected on Sunday. Additional snowfall accumulations are not expected to be enough to change avalanche conditions. Pay attention to changing weather conditions and local storm snow amounts. You should avoid steep avalanche terrain if you find signs of instability, such as recent slide activity, collapsing snow, or cracks that propagate through the snowpack.
A cold trough of low pressure with embedded moisture continues to affect Colorado on Sunday. Strong south to southwest winds over the southwest zones are expected to slowly subside this morning. Winds gradually shift toward west through the day. Temperatures hold steady at morning readings or even drop a few degrees. Periods of light snow continue through the morning and gradually diminish this afternoon. Accumulations will be limited in the arctic airmass. Widespread double-digit sub-zero temperatures are likely Sunday night. The trough axis moves across Colorado on Monday resulting in continued very cold temperatures, winds shifting to northwest, and a period of clouds/flurries favoring the northern zones. Temperatures finally start to moderate on Tuesday, although the northern zones could see an increase in afternoon clouds and a period of light evening snow in northwest flow. High pressure gradually strengthens for the remainder of the work week with a return to seasonable temperatures. No precipitation is expected until late Friday.