Large areas of Glacier National Park are CLOSED for avalanche control
using EXPLOSIVES. Daily or annual winter permits are required to access
winter restricted areas. Access information is available at the Rogers
Pass Discovery Centre
Storm slabs are most volatile near ridge crest and terrain exposed to the wind and lee features. Evaluate each slope independently, avoid steep, shallow, unsupported terrain, cornices and terrain traps.
Deep persistent slabs are best managed by:
Cornices are best managed by:
Today cloudy with sunny periods, no precipitation, an alpine high of -6 deg, freezing level to 1200m and winds SE 20km. No significant precipitation for the for seeable future, with temps near seasonal averages.
30-50cm of recent storm snow is settling and slowly bonding to the mid january interface. 3 layers in the storm snow producing mod-hard results on stability tests with resistant to broken characteristics. The Dec 18th interface is buried approx 1m and unreactive to stability tests, while the Nov 13 crust lies 1.5-2.5m beneath the surface.
Four new avalanches observed yesterday in the highway corridor on N-NE asp to size 2, and no new avalanches reported from the back country. Large destructive avalanches ran full path on Wednesday and Thursday in the Highway corridor up to size 3.5. Reports from the back country observed natural slab avalanches to size 2.5 occurred during storm.