You are here

Conditions at Bunny Flat and in Avalanche Gulch

Location Name: 
Avalanche Gulch
Mt. Shasta
Date and time of observation: 
Mon, 04/09/2018 - 9:30pm
Observation made by: 
Professional Observer
Red Flags: 

Location Map

96067 Mount Shasta , CA
United States
41° 23' 19.1688" N, 122° 12' 36.864" W
California US

Snowpack Observations


Conditions observed on a tour up Avalanche Gulch to Helen Lake:

  • Height of Snow (HS): 150 cm (60 in) @ 7500 ft, 300 cm (120 in) @ 8500 ft, > 300 cm @ 10,400 ft
  • Snow Surfaces: 2-8 cm (1-3 in) of smooth moist melt forms atop firm consolidated snow on all aspects by 2:30 p.m. Westerly aspects very smooth and icy in the morning hours. 
  • Snowpack: Overall stability good; skiing triggered a few small roller balls but otherwise no signs of recent wet loose activity.
  • Skiing: Near perfect corn conditions from 10,400 ft to 7500 ft.


  • Snowmobile Access at Bunny Flat
  • Snow Getting Thin at Bunny Flat
  • Glossy Sheen on SW Aspects - Very Icy in the Morning, Softening Up by Mid-Afternoon
  • Plenty of Rime Ice on Red Banks and the Trinity Chutes
  • Ice Fall from Upper Mountain
  • Boot Penetration @ Helen Lake (10,400 ft): 5-8 cm (2-3 in)
  • Ski Penetration @ Helen Lake (10,400 ft): 2-3 cm (1 in)
  • Near Perfect Corn Skiing on All Aspects by 2:30 p.m. (10,500-7500 ft)

Weather Observations


Cloud Cover: 
25% of the sky covered by clouds
Blowing Snow: 
Accumulation rate: 
Air temperature: 
Above Freezing
Air temperature trend: 
Wind Speed: 
Wind Direction: