Observation type
Observation type
Snowpack
Observer
Brad MacArthur
Keep me anonymous if published
no
Location (general area)
San gorgonio north face below 2nd to right chute
Latitude
Longitude
Date (yyyymmdd)
1/13/19
Time
10:15 am
Road conditions to area
Temperature
Sky
clear (no clouds)
Wind speed
Calm (smoke rises vertically)
Wind direction
not observed
Wind direction in degrees
Slope aspect
North East
Aspect in degrees
Slope angle
25
Elevation
10,000 +/-
Snow depth
100 cm
Boot/ Ski penetration
Precipitation
None
Activity, recent avalanches
No
Brief description
Whumphing noises, shooting cracks. collapsing
no
Rapid warming
no
Obvious avalanche path
yes
Terrain trap
yes
Comment
Didn't take notes and going from memory.....Dug a pit to the right of the bottom of 2nd to right chute. 4-6" light new snow on top of last weeks snow - fist hard no slab formation. Depending upon aspect or if sheltered location there was or wasn't a crust. Higher up the chute crust became very hard and would require crampons. No crust at pit location. Approximately 14"-16" snow from last week snow on top of a layer of 1/2" faceted crusty snow layer - Shovel shear test indicated Q2~Q3 shear. At this layer CT was low 20's and (3) ECTNP mid 20's. Aprox. 24" snow depth below to ground and is one finger hard. Nothing too concerning below, some slightly faceted old slabs that did not fall apart into sugar snow. Noticed new surface hoar on the skin up to chute.
Publish this observation
Yes I would like this observation Published
Observation type
Snowpack
Observer
Brad MacArthur
Keep me anonymous if published
no
Location (general area)
San gorgonio north face below 2nd to right chute
Latitude
Longitude
Date (yyyymmdd)
1/13/19
Time
10:15 am
Road conditions to area
Temperature
Sky
clear (no clouds)
Wind speed
Calm (smoke rises vertically)
Wind direction
not observed
Wind direction in degrees
Slope aspect
North East
Aspect in degrees
Slope angle
25
Elevation
10,000 +/-
Snow depth
100 cm
Boot/ Ski penetration
Precipitation
None
Activity, recent avalanches
No
Brief description
Whumphing noises, shooting cracks. collapsing
no
Rapid warming
no
Obvious avalanche path
yes
Terrain trap
yes
Comment
Didn't take notes and going from memory.....Dug a pit to the right of the bottom of 2nd to right chute. 4-6" light new snow on top of last weeks snow - fist hard no slab formation. Depending upon aspect or if sheltered location there was or wasn't a crust. Higher up the chute crust became very hard and would require crampons. No crust at pit location. Approximately 14"-16" snow from last week snow on top of a layer of 1/2" faceted crusty snow layer - Shovel shear test indicated Q2~Q3 shear. At this layer CT was low 20's and (3) ECTNP mid 20's. Aprox. 24" snow depth below to ground and is one finger hard. Nothing too concerning below, some slightly faceted old slabs that did not fall apart into sugar snow. Noticed new surface hoar on the skin up to chute.
Publish this observation
Yes I would like this observation Published
