Observation type
Snowpack
Observer
Ian bryant
Keep me anonymous if published
no
Location (general area)
Baden Powell
Latitude
Longitude
Date (yyyymmdd)
20230323
Time
8am-6pm
Road conditions to area
Temperature
Sky
Scattered clouds (3/8 to 4/8)
Wind speed
Light (1-16mph Flags/twigs in motion)
Wind direction
W
Wind direction in degrees
Slope aspect
North
Aspect in degrees
Slope angle
Elevation
Snow depth
Boot/ Ski penetration
Precipitation
None
Activity, recent avalanches
yes
Brief description
Whumphing noises, shooting cracks. collapsing
no
Rapid warming
no
Obvious avalanche path
yes
Terrain trap
yes
Comment
Obvs on BP. March 23, 2033.
Early morning, 8am, while breaking trail on BP we noticed a poor bonding interface with recent snow from the day before. At 6700’ there was 35cm of new snow over a older, heavy and dense 35cm base. Respective bonding between the old base and new snow did not show any instability and was bonding cohesively. Recent precip came right side up, with the last 15cm of fist dense snow sitting on a interface of graupel. Beneath the weak graupel interface was 20cm of four finger, with a gradual transition to 1 finger snow. CTM 12, SCQ1 at 15cm graupel interface. This grapuel interface showed with the same result at another pit dug at 7800’, CTM 12 SCQ1 at 20cm interface, but did not present itself within the snowpack above this elevation
The north face drainage/couloir did have substantial debris from an obvious wet slab avalanche, most likely due to last weeks heavy rain event. R3/D3 with very large swaths of snow that were ripped from canyon walls approx 12’ high and large fields of snow/ice debris that were covered with new snow from day before. I would estimate this slide started at approx 8k and ran the course of the drainage to the bench on highway 2 at 6800’, at a distance of 3/4 of a mile. No other evidence of avalanche or instability was observed.
Snow depths as we climbed were as follows..
6.7k 90cm
7.9k 170cm
8.1k 215cm
8.6k 230cm
9.2k >280cm
Publish this observation
Yes I would like this observation Published
Snowpack
Observer
Ian bryant
Keep me anonymous if published
no
Location (general area)
Baden Powell
Latitude
Longitude
Date (yyyymmdd)
20230323
Time
8am-6pm
Road conditions to area
Temperature
Sky
Scattered clouds (3/8 to 4/8)
Wind speed
Light (1-16mph Flags/twigs in motion)
Wind direction
W
Wind direction in degrees
Slope aspect
North
Aspect in degrees
Slope angle
Elevation
Snow depth
Boot/ Ski penetration
Precipitation
None
Activity, recent avalanches
yes
Brief description
Whumphing noises, shooting cracks. collapsing
no
Rapid warming
no
Obvious avalanche path
yes
Terrain trap
yes
Comment
Obvs on BP. March 23, 2033.
Early morning, 8am, while breaking trail on BP we noticed a poor bonding interface with recent snow from the day before. At 6700’ there was 35cm of new snow over a older, heavy and dense 35cm base. Respective bonding between the old base and new snow did not show any instability and was bonding cohesively. Recent precip came right side up, with the last 15cm of fist dense snow sitting on a interface of graupel. Beneath the weak graupel interface was 20cm of four finger, with a gradual transition to 1 finger snow. CTM 12, SCQ1 at 15cm graupel interface. This grapuel interface showed with the same result at another pit dug at 7800’, CTM 12 SCQ1 at 20cm interface, but did not present itself within the snowpack above this elevation
The north face drainage/couloir did have substantial debris from an obvious wet slab avalanche, most likely due to last weeks heavy rain event. R3/D3 with very large swaths of snow that were ripped from canyon walls approx 12’ high and large fields of snow/ice debris that were covered with new snow from day before. I would estimate this slide started at approx 8k and ran the course of the drainage to the bench on highway 2 at 6800’, at a distance of 3/4 of a mile. No other evidence of avalanche or instability was observed.
Snow depths as we climbed were as follows..
6.7k 90cm
7.9k 170cm
8.1k 215cm
8.6k 230cm
9.2k >280cm
Publish this observation
Yes I would like this observation Published
