Avalanche: Ogden 2/25/2010

Observer Name: 
Bill Brandt
Observation Date: 
02/25/2010
Occurrence Date: 
02/25/2010
Occurrence Time: 
Unknown
Region: 
Ogden
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Avalanche Characteristics
Elevation: 
Unknown
Trigger: 
Unknown
Depth (avg): 
unknown
Width: 
Unknown
Vertical: 
Unknown
General Comments

Rodeo Ridge
Partly sunny NW winds.

30+ slides of varying sizes.  Slide activity from the valley floor to the ridge where you can look into Ogden.  Naturals which triggered other naturals.  Debris running down gullies and pulling out the side walls in multiple spots.  8-24 inch crowns.  These were failing on the rime crust which was buried by 6-8 inches of new snow and then this would fail on the surface hoar which was buried by the last storm cycle.  Ski cuts easily pulled out.

Continuous cracking and collapsing along the whole skin track from the bottom of Test hill to the top of Rodeo Ridge.  Shooting cracks on anything over 30 degrees.  CT3 on rime crust 28 degree slope.  ECT 12- 14 on buried surface hoar.

Some transport but heard there was more on Cutler Ridge.

Graupel on top.  Lighter snow underneath.  Skiing was punchy.

Two layers were problematic.  1- rime crust 4-8 inches down.  2- buried surface 12-24  inches down.  I think it will stay weak for a while.  Maybe some warm temps would destroy these layers.  Pucker factor- ski down near the skin track.

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