Redcone Bowl

Redcone Bowl North Aspect
Submission Info
Wednesday, December 5, 2018 - 12:30pm
37° 35' 45.762" N, 119° 1' 34.788" W
Snowpit Observations
More detailed information about the snowpack: 

Wednesday 12-05-2018: Upon traveling up to Redcone bowl on the Mammoth Crest 4" of new snow was found below treeline with locally more 6-8" of new light snow on windloaded aspects (N-NE) above treeline.  There was cornice development along the top of Redcone bowl which was sensitive and easily kicked off. No cornice blocks slid more than 50 feet down slope and did not cause any other avalanche activity.  Settlement cones along trees and rock formations are apparent througout the snowpack.  Dug a snowpit within the main slope of Redcone bowl (North Aspect elev.10,380') and found 110cm total snow depth (see attached snowprofile). Stability tests showed a right side up pack with good overall stability.  The most interesting aspect of the snowpack was a thin film/zipper crust on the surface that could be described as a melt/freeze or temperature crust. The zipper crust was very apparent while skiing and potentially was formed from the thick cloudy air mass that has been hovering over the crest for periods during Tuesday and Wednesday.   Overall, where there is enough snow coverage, skiing was good all the way down to the 8500' level. Significant obstacles do exist on all aspects and best to keep it real so to enjoy the rest of the season.




Snowpit or crown profile photo or graph: 
Snowpack photos: 
Weather Observations
Blowing Snow: 
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
Less than 1 in. per hour
More detailed information about the weather: 

The day started out spectacular-- with broken clouds and mostly clear skies, but by the time we were going to drop into Redcone bowl at 1100 the clouds came back in and reduced visibility to about 100'. Things started to clear a bit again by 230pm, but overall the day was overcast. Winds were generally calm to light out of the southwest and there was minor flurries during the day. Our visibility was poor throughout the day, but did not observe any blowing snow or significant wind transport. Temperatures hovered just below freezing and the thick cloud cover gave a feeling of slight humidity.

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