Observation Date
12/11/2022
Observer Name
Brackelsberg
Region
Logan » Logan River » Blind Hollow
Location Name or Route
Blind Hollow
Weather
Sky
Overcast
Precipitation
Moderate Snowfall
Wind Direction
South
Wind Speed
Moderate
Weather Comments
Morning temps were very warm and dropped during the day.
Light snow started about 9:00 AM. Harder snow with graupel at 10:30. About 1" of new snow during a hard wave from 12:30-1:30. This was followed by light snowfall, then another hard wave around 2:30. When existing at 3:00, there was 2" of new snow on our skin track.
Snow Characteristics
New Snow Depth
2"
New Snow Density
Low
Snow Surface Conditions
Dense Loose
Wind Crust
Snow Characteristics Comments
New snow was very low density.
East aspects were very wind affected ranging from a thin, unsupportable wind crust to a supportable wind board.
West aspect were dense but soft snow.
Red Flags
Red Flags
Wind Loading
Cracking
Collapsing
Poor Snowpack Structure
Red Flags Comments
Signifcant snow transport from strong south winds in exposed areas.
We only had a couple of cracks, but numerous collapses in the mod
Avalanche Problem #1
Problem
Persistent Weak Layer
Trend
Same
Problem #1 Comments
While our ECTP24 was not as sensitive as other ECTs in the area, the facets making up the persistent weak layer are pretty ubiquitous and seem like they will continue to be reactive.
Snow Profile
Aspect
West
Elevation
7,800'
Slope Angle
25°
Comments
We dug our snowpit in a sheltered lower elevation area curious about 2 things.
Would we ve able to find buried surface hoar - we could not.
How reactive would these lower elevation be to our stability tests - it was reactive, but not as reactive as other pit tests in the range.
We observed a thin (<1cm) crust 60cm from the ground. I was not able to determine if this was a sun crust, melt freeze crust, or possibly a very small amount of rain that had fallen at the beginning of a storm.
Today's Observed Danger Rating
Considerable
Tomorrows Estimated Danger Rating
Considerable
Coordinates
