Hazard
Hazard
-10
77
10
30
12
0
15
L(M)
L(M)
L(M)
L(M)
18
16
217
10
16
6
10
14
4
3-
M
M
M
MONTHLY SNOW
61.0
3
2
C
40
31
14
4
M
18
5-
H
45
70
18
0
23
3
0
5
16
15
0
˘ > < ˘ ˘ < < ˘ ≤ <
5
8
3
MONTHLY H2O
5.3
0
1
2
C
C
M
M[C]
M
M
55-
0
20
20
10
8
22
5
3-
0
21
6
8
1
L(M)
0
15
5
7
2
L(M)
0
19
7
10
L[M]
5
13
5
9
20
20
4
22-
L
L
SEASON SNOW
196.0
22
7
24
23
9
23
0
18
24
1
6
17
1-
Season:
25
4
0
31
7
26
sh/nsf sh/nsf sh/nsf sh/nsf
2
17
20
3
1-
6
27
sh
0
18
28
sh
0
8
8
3-
3-
29
0
13
11
5
4
24
19
1
30
30
19
10
1
36
23
10
21
13
C
C
M[C]
M
M
M
L(M)
L(M)
L(M)
SEASON H2O
19.5
*Key for precipitation graph: Light blue bars = Height of New Snow. Dark blue bars = Height of New Water X 10. (For example, when bars are of equal height, snow density is 10%.)
1
0.4
0.4
1
0.2
0.5
0.2
1.1
0.9
0.1
0.2
0.2
0.1
8
6.67
16.7
109
20
10
5
5.79
9
10
10
20
10
100
62
45
29
8
50
˘ ˘ , ¯ ¯ ≤ > > ≤ ≤ ≤ ˘ ≤ ¯ ˘ , ≤ ≤
33
25
12
17
5-
L(M)
130
120
110
100
90
80
70
60
50
40
30
20
10
0
Snow Depth (in)
21
JANUARY
1-2"
20
4-6"
19
trace
18
6-8"
sh
17
12-14"
18-22"
6-10"
1"
12-14"
trace
SH / NSF sh/nsf sh/nsf sh/nsf sh/nsf
16
Temps noticeably warming
today.
80
0
15
sluffing, no real slabs noted
10
0
14
sluffing, no real slabs noted
31
1
13
Natural D2 on 4940 across
from Granite creek
40
6
12
Low vis day - cold dense
snow
19
49
11
Month:
sluffing
51
0
Sunburst
Wind (3812')
very deep and loose, sluffing
on steeps
20
20
22
Center Ridge
Snow/Temp (1880')
Sluffing, sporadic N1-2 wind
slabs
60
Sources:
Wdsprd cracking-collapsing
new/old int. 3-12" deep below
treeline - no vis
HNW:
6
10
4-5mm SH in valleys. Smaller
nearing ridge tops.
Density %
0
9
Sluffing - D1's running far
0
0
8
blew away - again…
5
7
AA D2-3's Summit MP 43
10
0
6
anemometer
10
8-10"
6-8"
~2500' Obs
5
Strong NW wind - Summit Lk
8+xN1-3 (N3 hit rd MP43)
20
0
4
Sluffing in today's storm snow
- steeps
23
0
3
lull btw storms, low vis, warm
New Snow & H2O x 10
(in)
Turnagain Pass
Poor vis - some N1-2 crowns
in steep rocky tr and eddies
1900' W rollover
Rime crust (Jan.7th/ 8th)
present on all aspects above
~1600'. Tpass region.
Bird flats DOT AA-3 closed the
road. Signifcant wind effect in
TPass
0
2
low vis no data
10
1
D1 wind slabs human
triggered
Wind Speed
(mph)
DAY
Limited vis and info
Direction:
mid lvl cloud
0
Natural Wnd Slabs Summit Sluffing on 40+ slopes
Temps (°F)
Min/Max & Avg.
Sky
Plumes and natural wnd slabs
in Summit area
& Notes
Avalanches
Area:
2011/2012
31
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