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Climbers Gully, Avalanche Gulch

Location Name: 
Avalanche Gulch
Mt. Shasta
Date and time of observation: 
Mon, 12/14/2020 - 12:00pm
Observation made by: 
Red Flags:

Location Map

96067 Mount Shasta , CA
United States
41° 23' 4.0092" N, 122° 12' 50.9256" W
California US

Snowpack Observations


Observations during a tour up into Avalanche Gulch to just below Helen Lake:

  • Observation Location: Climbers Gully
  • Elevation: 9,600 ft
  • Date: 20201214
  • Time: 1200
  • Observer: Aaron Beverly
  • Sky Conditions: Broken (BKN)
  • Current Precipitation: NO
  • Air Temperature: 28 °F
  • Surface Penetration: PS - 1 cm
  • Total Snow Depth (HS): 22 in (55 cm)
  • Wind Speed: Calm (C)

Above treeline, snow surface is chalky and slightly wind affected, with subtle sustrugis indicating north and northwest winds. Moraines and ridges are rocky and icy. Gullies hold the best snow, up to 22 inches. Snowpack is thin generally. Rock hazards lurk beneath the snow surface. There is not enough snow in steep areas or start zones to warrant avalanche concerns.


  • Above treeline
  • Slight wind texture, sustrugis indicating north / northwest winds
  • Ridges and moraines are still devoid of usable snow
  • Climbers Gully
  • Climbers Gully - where the best snow is.
  • Moraines are rock and icy.

Weather Observations


Cloud Cover: 
75% of the sky covered by clouds
Blowing Snow: 
Accumulation rate: 
Air temperature: 
Below Freezing
Air temperature trend: 
Wind Speed: 
Wind Direction: