Average crown height 60cm; Max 80cm, Min 30cm. Avalanche failed on a layer of 1mm FCsf immediately above a MFcr 89cm up from the ground.
Avalanche propagated approximately 450 feet wide and ran approximately 350 vertical feet.
Slope angle increased from 30 degrees at the crown to 36 degrees as the slope rolled over.
Debris was measured up to 320cm deep.
2019-02-11T12:00:00
2019-02-11T15:40:40-07:00
2019-09-10T14:14:18-06:00
Colorado Avalanche Information Center
zarter
190211 Coon Hill Crown
SnowPilot Snowpit site
3748
S
30
39.6919400 -105.9366900
US
CO
true
148
OVC
-SN
-15.0
M
SW
148
yes
0
11
RGwp
0.5
P
D
11
13
RGwp
0.5
1
1F
D
24
1
MFcr
P
D
25
13
FCxr
1
1F
D
38
2
RGlr
1
P
D
40
18
RGlr
RGxf
1
1F
D
58
1
FCso
1
4F
D
true
Bed Surface
59
2
MFcr
P
D
61
14
FCxr
1
1F
P
D
Decomposing MFcr
75
1
MFcr
1F
D
76
11
FCxr
2
1F
D
87
1
MFcr
P
D
88
30
DHxr
3
4
4F
D
118
30
DHxr
4
6
F
D
24
ECTP20
24
ECTP14
38
ECTP24
38
ECTN28
SnowPilot
7.91-0.1