Big Creek Summit Instability

Location Name: 
Big Creek Summit
Big Creek Summit
Date and time of observation: 
Sat, 12/08/2018 - 11:30

Red Flags: 
Whumphing noises, shooting cracks, or collapsing

Observation made by: Public
Snowpit Observations
More detailed information about the snowpack: 

Top of Big Creek Summit~7500ftS Facing aspect


HS 70 cm

Compression Test Passed (10 wrist, 10 elbow, 10 arm)

Bottom of the snowpack was not facets

Minor layer found ~15cm down


Any other comments about the observation or links to outside pages that have more info on the observation: 
  • 2cm of surface hoar on snow around the parking lot, less at higher evevations
  • All aspects & all elevations had surface hoar
  • Whumping & cracking on NE aspects in both more open and protected terrain above 7000 feet (25 degrees+)
Weather Observations
Blowing Snow: 
Cloud Cover: 
50% of the sky covered by clouds
Air temperature: 
Wind Speed: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
More detailed information about the weather: