Check out our Holiday Auction - Sign Up for the Utah Snow and Avalanche Workshop (USAW)

Avalanche: Dry Fork

Observer Name
Jason Konigsberg
Observation Date
Monday, November 15, 2010
Avalanche Date
Monday, November 15, 2010
Region
Provo » American Fork » Dry Fork
Location Name or Route
Elevation
10,300'
Aspect
Southwest
Trigger
Skier
Trigger: additional info
Remotely Triggered
Avalanche Type
Soft Slab
Weak Layer
Density Change
Depth
14"
Width
100'
Vertical
150'
Comments

Overcast, Graupel squalls in the am, 20s, Moderate ridegtop winds out of NW easing in the afternoon small pocket pulled out on southerly facing side of rocky point, looked less than a foot deep and about 50 feet wide no other avalanche activity noted insignificant cracking in first few inches of snow right off the ridge loading had occured on southerly aspects and terrain features, wind had either made hard slabs or scoured windward aspects and run out of snow to transport by late in afternoon few inches (varied widely due to wind) of graupel on top of rime crust rime crust was very crumbly, thin and distibuted unevenly, not the great sliding surface we had expected Snowpit results- CTM11 Q3 6" from surface underneath rime, CTM13 Q2 18 inches down (in layer where people have been noting facet formation May have been considerable in am but we found no energy in the snowpack, more like moderate in our area Of interest was the weakness 18" down in snowpack, more sensitive and cleaner shear than results just a fewdays ago. Seems small grain factes haven't grown but the layer has increased in thickness

Coordinates