BC Zone Observation Report
Sunday, February 26, 2023 at 12:00 AM
Aspen
Details
Date:
2023/02/26
Observer:
Dylan Craaybeek
Organization:
Forecaster, CAIC
Location
BC Zone:
Aspen
Area Description:
Marble Peak
Weather
Weather Description:
Overcast and warm (2 degrees C in the town of Marble at 8:30) began snowing (S-1) around 10:30 with steady Moderate southwest winds.
Snowpack
Snowpack Description:
Irregular wind-loading patterns at all elevations including below the treeline. Southerly-facing slopes have both a supportable layer of wind-packed rounds about 5-10cm thick with a melt-freeze crust 1-3cm thick on the top of it. There is a layer of 4F hard (on the hand hardness scale) rounding facets about 1 meter below the snow surface but this layer shows non-propagating results in extended column tests after additional loading steps. Wind-loaded slopes in unusual places are the primary danger in this area.
Avalanches
Date
Location/Path
#
Elev
Asp
Type
Trig
SizeR
SizeD
2023/02/24
†
Marble
1
<TL
NE
SS
N
R1
D1.5
Date:
2023/02/24 (Estimated)
Observer:
Dylan Craaybeek
Organization:
Forecaster, CAIC
Area Description:
Northeast-facing cliffs off Marble Peak
Landmark:
Marble
2023/02/24
†
Marble
1
TL
N
SS
N
R1
D1
Date:
2023/02/24 (Estimated)
Observer:
Dylan Craaybeek
Organization:
Forecaster, CAIC
Area Description:
The Fridge
Landmark:
Marble
Media
Images
