Near Sonora Snotel

Location Name: 
Near Sonora Snotel
Region: 
BWRA
Date and time of observation: 
Fri, 04/07/2017 - 14:30
Location Map: 


Red Flags: 
Recent loading by new snow, wind, or rain

Observation made by: Public
Snowpit Observations
More detailed information about the snowpack: 

+30cm of new snow in the form of Graupel has fallen since the start of the storm Thursday. Temperatures have been relatively moderate nearing zero degrees C. The new snow surface has a creamy & styrofoam texture. This pit was dug in a wind protected area of trees near the Sonora Pass snotel site off Hwy108. The new snow sits atop a layer of spring like snow that is somewhat moist. Any snow stability test produced a failure result just above the old snow at 27cm down, with hard-moderate force & irregular shear quality. Debris from trees during high wind events can be seen in the snowpit profile.

Snowpit or crown profile photo or graph: 
Snowpit videos (tests, etc): 
Any other comments about the observation or links to outside pages that have more info on the observation: 

New snow is still falling at a rapid rate & loading slopes with high winds. This snow will be unstable until it has had time to settle. Avoid terrainĀ around slide paths, where wind loading has occured & on slopes steeper than 35degrees.

Weather Observations
Blowing Snow: 
Air temperature: 
Wind Speed: 
Precipitation: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
More detailed information about the weather: 

The skies were fierce with wind & Graupel. Gusts were ripping snow from ridges & trees, casting it across the landscape in wild fashion. It was Zero degrees Celsius & RH was 100%. Winds were dominant from the Southwest but swirling irradically & plastered snow on the North sides of trees indicates winds came out of that direction for a period.