You are here

Conditions in Avalanche Gulch

Location Name: 
Avalanche Gulch
Region: 
Mt. Shasta
Date and time of observation: 
Sun, 01/05/2020 - 1:00pm
Observation made by: 
Forecaster

Location Map

96067 Mount Shasta , CA
United States
41° 22' 33.096" N, 122° 13' 11.2404" W
California US

Snowpack Observations

Details

Observations in Avalanche Gulch:

  • DATE: 20190104 - 1300 hours
  • ELEVATION: 8,400 ft
  • SKY: Broken
  • PRECIPITATION: None
  • BLOWING SNOW: Near and above treeline strong northwest winds were transporting snow
  • TEMPERATURE: 22°F
  • WIND: Moderate to strong, northwest
  • RED FLAGS: N/A
  • BOOT/SKI PENETRATION: 0-6 inches / 0-3 inches

Winds have stripped the tops of moraines and westerly facing aspects down to the pre-Christmas crust, which your boot will penetrate but your skis will not. Generally the snow surface is wind textured or scoured. Gullies hold 2-3 inches of snow and provide pretty good skiing conditions, though an occasional icy spot will be encountered.

Though wind was transporting snow above treeline, very little evidence of wind slabs were seen, and when they were, slabs were very small. Small cornices could be found in isolated areas. Most blowing snow was being sublimated.

No signs of instability were seen.

Photos

  • Small cornices forming on easterly aspects
  • Wind textured and icy snow surface
  • Ski penetration 0-3 inches
  • Westerly facing slopes are scoured and icy
  • Boot penetration up to 6 inches

Weather Observations

Statistics

Cloud Cover: 
25% of the sky covered by clouds
Blowing Snow: 
Yes
Precipitation: 
None
Accumulation rate: 
None
Air temperature: 
Below Freezing
Air temperature trend: 
Static
Wind Speed: 
Moderate
Wind Direction: 
Northwest