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Conditions Update - Mount Shasta & Castle Lake

Location Name: 
Middle Peak, Castle Lake and Green Butte, Mount Shasta
Mt. Shasta
Date and time of observation: 
Fri, 02/07/2020 - 1:30pm
Observation made by: 

Location Map

96067 Mount Shasta , CA
United States
41° 13' 22.9656" N, 122° 23' 15.27" W
California US

Snowpack Observations


Conditions from Mount Shasta:

  • Evidence of strong wind: sastrugi, hard wind board,  variable surface textures. 
  • Surface Penetrability: Ski/boot: 0-2 inches 
  • Scored west and north facing aspects.  Salt and pepper rock and snow configuration on NW. Many obstacles exist. 
  • Softening south and east facing slopes. Warmer daytime temps and cooler nights have allowed for corn snow to begin to form. 

Conditions from Castle Lake

  • A shallow and well-worn snowpack remains. 
  • Many obstacles such as bushes, rocks, and icy patches are melting out and presenting as travel hazards. 
  • North facing terrain remains firm and icy.
  • South facing terrain is soft and moist. 
  • Variable surface textures: old rain runnels, sastrugi, with occasional smoother patches.



  • Left Peak, Castle lake with Mount Shasta behind. Photo taken from near Heart Lake
  • Mount Shasta, Avalanche Gulch and Green Butte Ridge. Photo taken from summit of Green Butte
  • Looking up Powder Bowl. Green Butte south aspect.
  • Sastrugi on Green Butte Ridge, elevation approximately 9,000 feet.
  • Looking down Green Butte Ridge.
  • Castle Lake from near Heart Lake. South side of Right Peak.
  • Near Heart Lake: north facing patches are icy
  • Near Heart Lake looking east; shallow snowpack on south side of Left Peak


Weather Observations


We had beautiful blue skies and calm winds for most of the afternoon. 


Cloud Cover: 
Accumulation rate: 
Air temperature: 
Above Freezing
Air temperature trend: 
Wind Speed: