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Powder Bowl wet slab
Location Name:
Powder Bowl Region:
Mt. ShastaDate and time of avalanche (best estimate if unknown):
Thu, 12/29/2016 - 7:00pmObservation made by:
PublicRed Flags:
Recent avalanche activity
Recent loading by new snow, wind, or rain
Rapid warming
Location Map
United States
41° 22' 18.714" N, 122° 12' 41.4612" W
See map: Google Maps
US
Avalanche Observations
Details
Characteristics
Avalanche Type:
WetTrigger type:
NaturalSlope:
37degreesAspect:
SoutheastElevation:
9 600ft.Terrain:
Above TreelineWeak Layer:
UnknownBed Surface:
UnknownCrown Height:
2 ftAvalanche Width:
150ft.Avalanche Length:
1 000ft.Weather Observations
Details
Statistics
Cloud Cover:
50% of the sky covered by cloudsBlowing Snow:
NoPrecipitation:
Accumulation rate:
Air temperature:
Below FreezingAir temperature trend:
CoolingWind Speed:
ModerateWind Direction:
Northwest
20161230 observation @ 1100
I'm not sure if this avlanahce was already reported but seems new to me. I wasn't able to find any reported observation on the website. If this is the case, my best guess to timing would be yesterday afternoon after the slope baked in the sun all day. There were recent ski tracks in the chute directly off the top of Powder Bowl but the slide originated from the shoulder. The avalanche stepped down to the old snow surface but seems to have orginated higher up in the snowpack. The debris field was quite large.