You are here

Conditions After the Storm

Location Name: 
Old Ski Bowl, Gray Butte
Mt. Shasta
Date and time of observation: 
Mon, 01/25/2021 - 1:00pm
Observation made by: 

Location Map

United States
41° 21' 2.4804" N, 122° 11' 32.8272" W

Snowpack Observations


Conditions after Sunday's storm:

  • Observation Location: Gray Butte
  • Elevation: 7,800 ft
  • Date: 20210125
  • Time: 1100-1300
  • Observer: Ryan Sorenson
  • Sky Conditions: Few  (FEW) then Broken (BKN) with various fog layers.
  • Current Precipitation: Type - Light snow showers. 
  • Air Temperature: 19 °F
  • Surface Penetration: Ski penetration (PS) = 6 in ( 15 cm)
  • Total Snow Depth (HS): 44 in (111 cm)
  • 24-hour New Snow Depth (HN24): 8 in (20 cm)
  • 24-hour New Snow Water Equivalent (HN24W): 0.35
  • Wind Direction: Variable 
  • Wind Speed: Calm to Light, 0-5 mi/hr

Between 11 a.m. and 10 p.m. yesterday, around 8 inches of new snow fell.  Temperatures have remained in the teens since. Snow surfaces show little signs of previous wind.  No concerning signs of wind slab formation were seen.  New snow sits atop 2 inches of slightly denser snow. A thick rain crust below that is sealing off the lower snowpack. The surface snows are light and fist hard. It was possible to feel the icy rain crust while skinning and making deep turns. We were able to start some small point releases on terrain steeper than 40 degrees. Other than that, no signs of avalanches were observed. 


  • Looking up Old Ski Bowl, near treeline.
  • Gray Butte
  • East ridge of Gray Butte
  • Quick look at layers ~ 7400 feet, north aspect.
  • Ski penetration (PS) = 6 in ( 15 cm)

Weather Observations


Cloud Cover: 
50% of the sky covered by clouds
Blowing Snow: 
Accumulation rate: 
Less than 1 in. per hour
Air temperature: 
Below Freezing
Air temperature trend: 
Wind Speed: