Snowpack

Sidecountry of WMR

Sarah WilliamsWhitefish Range
View on map
Observation photo 1

Quick report

Cracking
isolated

We toured in the southern whitefish range to dig into our Persistent Slab problem.

  • Rain at 4500 feet. Mixed precipitation around 5000 feet. Snow above 5500 feet.
  • On southern aspects, at 5820 and 6500 feet, we found a structure of our Persistent Slab problem: facets above the 12/22 crust.
  • On northern aspects, at 6800 feet, the 12/22 crust was less defined, with more uniform density within the snowpack.
  • Key takeaway: the distribution of the Persistent Slab problem structure was more apparent on southerly aspects (SW, S, SE).
Isolated cracking around our skis. No avalanches were observed.

Weather

Air Temp
32 to 30
Cloud Cover
overcast
Wind Loading
none
Rain Elevation
5000
Recent Snowfall
3 cm
Snow Avail For Transport
none

Low visibility, calm winds and mixed precipitation at mid-elevations. At upper elevation, light snow and light winds.

Snowpack

Snowpits:

  • 5820 feet, WSW aspect, HS: 120 cm
    • moist snow of varying degrees to the ground.
  • 6500 feet, SW aspect, HS: 145 cm.
    • 12/22 crust down 70 cm from the surface. 
    • ECTN22. No propagation
  • 6800 feet, NW aspect, HS: 175 cm.
    • No distinct crusts, but a dense "block" down 105 from the surface.