BC Zone Observation Report
Monday, May 20, 2019 at 12:00 AM
Southern San Juan
Details
Date:
2019/05/20
Observer:
Mark Mueller
Organization:
Forecaster, CAIC
Location
BC Zone:
Southern San Juan
Area Description:
Wolf Creek Pass/Lobo
Weather
Depth of Total Snow:
74 in
Most Significant Precip Rate:
S1 - 1 cm/hr
Weather Description:
Cloudy skies, mild temps, and light winds in the morning. 6" new snow at 1100.. Snowfall and SW winds increased in the afternoon. 2"+ additional at 1400.
Snowpack
Snowpack Description:
Storm slabs and dry loose avalanches were easily triggered, failing on the new snow/old snow interface. Small, fragile fresh cornices were observed and had triggered some very small slab and loose activity.
Avalanches
Date
Location/Path
#
Elev
Asp
Type
Trig
SizeR
SizeD
2019/05/20
Wolf Creek Pass
1
TL
NE
SS
AS / c
R1
D1
Date:
2019/05/20
Observer:
Mark Mueller
Organization:
Forecaster, CAIC
Area Description:
Suicide Bowl.
Landmark:
Wolf Creek Pass
Sliding Surface:
I - New/Old Interface
Average Crown:
6 in
Maximum Width:
50 ft
Maximum Vertical:
75 ft
2019/05/20
Wolf Creek Pass
3
<TL
N
L
AS / c
R2
D1.5
Date:
2019/05/20
Observer:
Mark Mueller
Organization:
Forecaster, CAIC
Area Description:
The Plunge
Landmark:
Wolf Creek Pass
Sliding Surface:
I - New/Old Interface
Maximum Vertical:
400 ft
Comments:
Ran full track