Mammoth Knolls

Above Grindelwald St.
Submission Info
Monday, February 4, 2019 - 3:00pm
Red Flags: 
Recent loading by new snow, wind, or rain
37° 39' 29.2572" N, 118° 58' 55.9992" W
Snowpit Observations
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Toured up above Grindelwald St on west, southwest and south facing slopes to check on loading and stability.  I heard of some concern from residents who's houses are below this avalanche terrain and wanted to check on my feeling that the strong SW winds would result in not much concern on these south to west facing slopes.  I also wanted somewhere to go that was actually relatively easily accessible and safe.  

There was strong SW winds blowing up and across these slopes this afternoon, leading to some patchy small areas of wind deposit, but mostly wind was stripping snow. See attached photo of areas of bare ground at 8500' on south facing slopes.  Skinning was mostly boot top or less ski penetration, except for numerous places ontop of shallowly covered bushes where I sunk to my waist.  Some isolated areas of shooting cracks 2-3ft long on isolated wind deposit rolls.  Dug one pit at 8300' on SW facing slope, see attached profile.  ECTN results within new snow.  Overall not too concerning on this aspect, but would be much more concerned on opposite aspects where snow was being loaded by the wind at much greater rates.   Punching thru to shallow bushes and struggling to get back above them was a real concern today.  

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Weather Observations
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