Columbine Drainage

Location Name: 
Columbine Drainage
Region: 
Long Canyon Area
Date and time of observation: 
Mon, 03/16/2020 - 13:24


Red Flags: 

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

With a good refreeze overnight on into Monday morning, we were skinning on supportable crusts up to about 11,500'.  As the day warmed these crusts melted away and we were finding unsupportable wet snow to the ground on many slopes.  Solar aspects were quickly warming up during the day, starting with east aspects and working it's way to west by the afternoon.  We were finding lots of rollerballs and pinwheeling on slopes that were taking direct sun. 

Cold snow still remains on wind sheltered north facing terrain that made for good skiing.  Moderate to strong winds since Friday has created stiff cohesive harder slabs on slopes above treeline.  North facing terrain near and above treeline, we continue to find reactive weak layers in the snowpack.  Weak faceted snow that formed during the high pressure before last Fridays' storm is now buried by the last storm snow and is reactive where we are finding stiff slabs above.  Other slopes on these aspects have a shallow weak faceting snowpack where we are finding depth hoar lower down in the snowpack.  We are getting this depth hoar to fail with moderate to hard force in many of our snowpits.

Snowpack photos: 
Weather Observations
Blowing Snow: 
No
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Above Freezing
Wind Speed: 
Light
Precipitation: 
Air temperature trend: 
Warming
Wind Direction: 
Southwest
Accumulation rate: 
More detailed information about the weather: