Avalanche Weather Guidance
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
644
FWUS45 KTFX 152203
AVGTFX
Avalanche Weather Guidance
National Weather Service Great Falls MT
300 PM MST Mon Dec 15 2025
...Glacier National Park/Marias Pass...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover OV OV BK BK BK SC BK OV OV OV OV OV OV OV OV OV BK
Cloud Cover (%) 75 80 70 50 50 50 65 80 85 85 95 95 95 95 75 75 60
Temperature 40 39 36 31 28 27 29 30 31 31 30 31 34 31 26 22 21
Min/Max Temp 27 33 23 34
Wind Dir SW SW W W W W SW SW SW SW SW SW SW SW W W W
Wind (mph) 36 41 46 46 37 29 25 24 21 25 27 28 34 43 46 42 35
Wind Gust (mph) 78 90 107 105 85 67 55 51 48 55 62 65 79 94 93 86 77
Precip Prob (%) 70 50 40 20 10 10 40 70 80 80 90 90 100 100 60 60 30
Precip Type S S S S S S S S S S S S S S S S S
6 Hour QPF 0.26 0.08 0.03 0.23 0.28 0.54 0.40 0.13
12 Hour QPF 0.34 0.26 0.82 0.53
Low End QPF 0.09 0.11 0.37 0.04
High End QPF 0.47 0.59 1.04 0.64
6 Hour Snow 0.3 0.5 0.4 3.0 2.8 4.3 3.8 2.1
12 Hour Snow 0.8 3.4 7.1 5.9
Low End Snow 0.3 1.1 3.2 0.6
High End Snow 2.9 6.7 11.6 8.9
Snow Level (kft) 7.9 7.4 6.0 4.4 3.7 3.3 3.8 4.4 4.9 5.2 5.3 5.6 5.7 4.2 2.2 1.9 1.6
Snow Density (%) 25 25 11 11 7 7 8 8 11 11 12 12 10 10 6 6 6
...Bob Marshall/Scapegoat Wilderness...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover BK OV OV BK BK BK BK OV OV OV OV OV OV OV OV OV BK
Cloud Cover (%) 65 70 75 65 65 60 60 80 85 80 95 95 100 100 85 85 65
Temperature 43 41 39 33 30 30 32 33 33 33 31 32 35 32 26 22 21
Min/Max Temp 29 35 23 35
Wind Dir W SW W W W W W SW SW SW SW SW SW SW W W W
Wind (mph) 31 34 36 39 33 25 19 18 17 20 23 24 28 36 37 35 34
Wind Gust (mph) 80 85 95 95 79 65 52 51 46 55 59 62 70 85 86 86 80
Precip Prob (%) 40 60 60 30 30 30 30 70 70 70 90 90 100 100 80 80 40
Precip Type R R S S S S S S S S S S S S S S S
6 Hour QPF 0.14 0.11 0.07 0.16 0.16 0.22 0.40 0.08
12 Hour QPF 0.25 0.23 0.38 0.48
Low End QPF 0.04 0.05 0.25 0.05
High End QPF 0.35 0.42 0.73 0.53
6 Hour Snow 0.0 0.3 0.8 1.6 1.4 1.5 3.1 1.4
12 Hour Snow 0.3 2.4 2.9 4.5
Low End Snow 0.1 0.5 2.0 0.8
High End Snow 2.1 4.9 8.9 6.6
Snow Level (kft) 8.4 8.0 7.0 5.6 4.8 4.5 4.7 5.3 5.5 5.6 5.7 6.0 6.4 5.0 2.3 2.1 2.0
Snow Density (%) 33 33 12 12 8 8 9 9 11 11 14 14 11 11 6 6 5
...Nevada Mountains...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover BK SC BK BK BK SC SC BK BK BK OV OV OV OV OV OV BK
Cloud Cover (%) 55 35 70 60 60 50 45 65 65 60 80 80 100 100 75 75 55
Temperature 47 46 44 39 33 33 35 36 36 36 33 35 38 35 29 24 23
Min/Max Temp 33 38 26 37
Wind Dir W SW SW W W W W SW SW SW SW SW SW SW W W W
Wind (mph) 26 29 32 34 29 21 18 18 17 20 21 23 27 34 35 34 34
Wind Gust (mph) 58 63 69 74 63 48 39 41 36 44 48 51 59 67 65 63 63
Precip Prob (%) 10 10 50 30 30 20 20 40 40 40 70 70 100 100 60 60 20
Precip Type R R R S S S S S S S S S S S S S
6 Hour QPF 0.02 0.14 0.03 0.03 0.02 0.05 0.29 0.03
12 Hour QPF 0.16 0.06 0.07 0.32
Low End QPF 0.02 0.00 0.05 0.02
High End QPF 0.21 0.15 0.45 0.34
6 Hour Snow 0.0 0.0 0.3 0.1 0.1 0.2 1.0 0.4
12 Hour Snow 0.0 0.4 0.3 1.4
Low End Snow 0.0 0.0 0.2 0.3
High End Snow 0.5 0.8 3.9 2.8
Snow Level (kft) 8.9 8.4 7.7 6.5 5.5 5.1 5.2 5.7 5.7 5.7 5.8 6.3 6.8 5.5 2.7 2.3 2.0
Snow Density (%) 50 50 25 25 12 12 14 14 16 16 25 25 16 16 6 6 6
...Elkhorn/Boulder Mountains...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover BK SC SC BK BK BK SC SC SC SC BK BK OV OV BK BK SC
Cloud Cover (%) 65 30 35 55 55 55 35 50 40 35 55 70 95 95 55 55 50
Temperature 45 42 40 38 33 34 37 40 37 35 32 33 36 35 29 24 22
Min/Max Temp 32 41 27 36
Wind Dir SW SW SW W W W W W W SW SW SW SW SW W W W
Wind (mph) 19 24 27 26 23 18 17 18 16 18 20 24 28 31 34 33 31
Wind Gust (mph) 47 52 63 67 63 51 47 47 36 44 49 57 66 71 73 69 65
Precip Prob (%) 10 5 5 20 20 10 10 10 5 5 30 30 90 90 30 30 5
Precip Type S S S S S S S S S S S
6 Hour QPF 0.00 0.01 0.01 0.00 0.00 0.01 0.22 0.01
12 Hour QPF 0.01 0.01 0.01 0.23
Low End QPF 0.00 0.00 0.01 0.00
High End QPF 0.07 0.05 0.35 0.27
6 Hour Snow 0.0 0.0 0.1 0.0 0.0 0.1 1.2 0.2
12 Hour Snow 0.0 0.1 0.1 1.4
Low End Snow 0.0 0.0 0.1 0.0
High End Snow 0.3 0.4 4.2 2.5
Snow Level (kft) 8.8 8.4 7.8 7.2 6.4 5.8 5.9 6.4 6.3 6.0 5.8 6.3 7.0 6.0 3.1 2.5 2.0
Snow Density (%) 50 50 25 25 12 12 12 12 16 16 20 20 14 14 6 6 5
...Big Belt Mountains...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover BK SC SC SC SC SC FW SC SC SC BK BK OV OV BK BK SC
Cloud Cover (%) 70 35 40 45 50 35 20 30 30 40 55 60 95 95 55 55 50
Temperature 50 47 44 40 35 36 39 42 39 38 35 36 38 38 33 28 25
Min/Max Temp 34 43 31 39
Wind Dir SW SW SW W W W W W SW SW SW SW S SW W W W
Wind (mph) 24 28 29 32 31 25 21 21 19 21 23 27 32 34 36 36 35
Wind Gust (mph) 56 64 73 79 72 57 48 48 42 49 52 62 72 74 77 75 73
Precip Prob (%) 10 5 10 10 10 10 5 10 10 10 30 30 90 90 30 30 10
Precip Type R S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.19 0.01
12 Hour QPF 0.00 0.00 0.00 0.20
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.03 0.03 0.31 0.23
6 Hour Snow 0.0 0.0 0.0 0.0 0.0 0.0 0.7 0.2
12 Hour Snow 0.0 0.0 0.0 0.9
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.1 0.1 2.6 1.6
Snow Level (kft) 8.6 8.4 7.8 6.8 5.8 5.2 5.3 5.9 5.9 5.7 5.6 5.9 6.6 5.8 3.2 2.5 2.0
Snow Density (%) 100 100 33 33 16 16 16 16 20 20 25 25 16 16 7 7 6
...Little Belt Mountains...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover BK SC SC SC SC SC FW SC BK SC SC BK OV OV BK BK BK
Cloud Cover (%) 55 35 25 45 35 30 20 45 50 45 45 60 90 90 55 55 55
Temperature 47 44 43 40 34 34 38 39 37 36 34 35 37 37 33 26 24
Min/Max Temp 33 41 30 39
Wind Dir SW SW SW W W W W W SW SW SW SW SW SW W W W
Wind (mph) 26 31 31 34 33 26 21 19 17 19 19 23 28 31 33 34 33
Wind Gust (mph) 57 63 69 77 72 58 48 46 40 43 44 54 65 65 65 67 67
Precip Prob (%) 5 0 5 5 5 5 5 10 10 10 20 20 80 80 30 30 10
Precip Type S S S S S S S
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.15 0.01
12 Hour QPF 0.00 0.00 0.00 0.16
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.02 0.03 0.22 0.18
6 Hour Snow 0.0 0.0 0.0 0.0 0.0 0.0 0.8 0.2
12 Hour Snow 0.0 0.0 0.0 1.0
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.1 0.2 2.4 1.7
Snow Level (kft) 8.8 8.4 7.8 6.9 5.7 5.0 5.0 5.6 5.7 5.6 5.6 5.7 6.5 6.0 3.3 2.5 1.9
Snow Density (%) 100 100 33 33 12 12 12 12 16 16 20 20 16 16 7 7 6
...Highwood Mountains...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover BK SC FW FW FW FW FW SC BK SC BK OV OV OV SC SC BK
Cloud Cover (%) 65 25 10 15 15 20 20 45 60 45 55 75 80 80 35 40 65
Temperature 50 49 47 42 36 37 40 42 40 39 37 39 41 41 36 31 28
Min/Max Temp 35 43 34 43
Wind Dir W SW SW W W W W W SW W SW SW SW SW W W W
Wind (mph) 37 41 41 46 42 34 27 24 20 24 21 24 31 37 43 43 40
Wind Gust (mph) 58 63 70 78 71 58 47 42 54 62 66 66 63
Precip Prob (%) 5 0 0 0 5 5 5 10 10 10 20 20 70 70 20 20 10
Precip Type S S S S S S S
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.01
12 Hour QPF 0.00 0.00 0.00 0.06
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.05 0.15 0.07
6 Hour Snow 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1
12 Hour Snow 0.0 0.0 0.0 0.1
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.0 0.1 0.9 1.2
Snow Level (kft) 9.0 8.4 7.7 6.4 5.1 4.5 4.6 5.2 5.4 5.4 5.5 5.8 6.4 6.0 3.0 2.3 1.6
Snow Density (%) 100 100 50 50 16 16 16 16 25 25 33 33 25 25 8 8 6
...Snowy/Judith Mountains...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover OV BK SC FW SC SC SC BK OV OV BK OV OV OV SC SC BK
Cloud Cover (%) 75 70 35 20 30 35 35 50 80 75 65 80 80 75 50 45 55
Temperature 55 51 49 45 38 38 40 41 38 38 37 38 41 42 39 32 28
Min/Max Temp 36 42 34 44
Wind Dir SW SW SW W W W W W W W SW SW SW SW W W W
Wind (mph) 25 27 29 34 31 23 17 14 12 14 16 19 26 29 32 36 39
Wind Gust (mph) 55 62 67 81 72 56 42 36 35 36 44 58 65 65 70 74
Precip Prob (%) 5 0 0 0 0 0 5 5 10 10 5 5 60 60 20 20 10
Precip Type S R S S
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.06 0.01
12 Hour QPF 0.00 0.00 0.00 0.07
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.04 0.12 0.12
6 Hour Snow 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1
12 Hour Snow 0.0 0.0 0.0 0.2
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.0 0.1 0.6 1.2
Snow Level (kft) 9.1 8.6 7.8 7.2 5.9 5.0 4.8 5.3 5.6 5.5 5.6 5.6 6.4 6.6 4.4 2.8 1.8
Snow Density (%) 100 100 100 100 25 25 20 20 25 25 33 33 33 33 10 10 6
...Bears Paw Mountains...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover BK BK FW FW FW FW FW SC OV BK BK OV OV BK SC SC OV
Cloud Cover (%) 70 60 15 25 15 20 10 45 85 70 65 85 80 70 50 50 75
Temperature 48 46 45 41 34 33 36 37 35 35 35 35 37 38 38 32 25
Min/Max Temp 32 38 32 40
Wind Dir W W SW W W W W W SW SW SW SW S SW W W W
Wind (mph) 26 32 36 42 37 27 18 16 12 14 14 16 20 31 37 37 35
Wind Gust (mph) 50 56 69 73 64 49 37 33 37 54 67 66 62
Precip Prob (%) 5 0 0 0 0 0 0 5 30 30 30 30 50 50 30 30 20
Precip Type S S S S S R S S S
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.02
12 Hour QPF 0.00 0.00 0.00 0.07
Low End QPF 0.00 0.00 0.00 0.01
High End QPF 0.00 0.10 0.16 0.11
6 Hour Snow 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2
12 Hour Snow 0.0 0.0 0.0 0.2
Low End Snow 0.0 0.0 0.0 0.1
High End Snow 0.0 0.3 0.5 1.4
Snow Level (kft) 8.7 8.2 7.4 5.8 4.3 3.5 3.3 3.9 4.3 4.8 5.0 5.3 5.7 5.8 3.4 2.0 0.9
Snow Density (%) 100 100 50 50 14 14 14 14 25 25 33 33 33 33 10 10 5
...Castle/Crazy Mountains...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover BK SC FW SC BK SC FW SC BK BK SC BK OV OV BK BK BK
Cloud Cover (%) 55 35 15 50 60 50 25 45 65 50 40 50 95 95 60 55 60
Temperature 45 42 41 39 35 35 39 41 38 36 34 34 37 37 33 27 24
Min/Max Temp 34 42 31 39
Wind Dir SW SW SW W W W W W SW SW SW SW SW SW W W W
Wind (mph) 28 32 32 34 32 27 25 24 19 20 23 26 31 35 40 42 40
Wind Gust (mph) 69 78 81 87 81 72 63 58 47 52 57 65 75 84 87 86 85
Precip Prob (%) 5 0 5 5 10 10 5 5 5 5 10 10 90 90 30 30 5
Precip Type S S S S
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.19 0.02
12 Hour QPF 0.00 0.00 0.00 0.21
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.05 0.03 0.27 0.27
6 Hour Snow 0.0 0.0 0.0 0.0 0.0 0.0 0.7 0.2
12 Hour Snow 0.0 0.0 0.0 0.9
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.1 0.2 2.8 2.0
Snow Level (kft) 8.2 8.2 7.9 7.2 6.4 5.6 5.6 6.1 6.1 5.8 5.6 5.8 6.6 6.3 3.9 2.6 1.9
Snow Density (%) 100 100 33 33 14 14 14 14 16 16 20 20 16 16 7 7 6
...Bridger Range...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover BK SC SC BK OV OV SC SC BK SC SC BK OV OV BK BK BK
Cloud Cover (%) 55 45 35 60 75 70 45 45 55 45 45 70 95 95 60 60 60
Temperature 47 44 43 40 36 37 39 42 39 37 35 36 39 38 34 28 25
Min/Max Temp 35 43 32 40
Wind Dir SW SW SW SW W W W W W SW SW SW SW SW W W W
Wind (mph) 20 24 25 26 24 20 20 20 16 18 19 23 26 31 34 35 33
Wind Gust (mph) 48 55 59 65 58 52 48 49 37 42 46 54 63 71 74 72 66
Precip Prob (%) 10 0 5 10 20 20 5 5 0 0 10 10 90 90 40 40 5
Precip Type S S S S S S
6 Hour QPF 0.00 0.00 0.01 0.00 0.00 0.00 0.18 0.02
12 Hour QPF 0.00 0.01 0.00 0.20
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.08 0.06 0.29 0.21
6 Hour Snow 0.0 0.0 0.1 0.0 0.0 0.0 0.4 0.2
12 Hour Snow 0.0 0.1 0.0 0.6
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.1 0.2 2.5 1.4
Snow Level (kft) 7.8 8.3 8.1 7.4 6.7 6.1 6.0 6.5 6.3 5.9 5.7 6.1 6.9 6.6 4.2 2.8 2.0
Snow Density (%) 100 100 50 50 16 16 16 16 20 20 20 20 20 20 7 7 6
...Madison Range/Spanish Peaks...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover OV BK SC BK OV OV BK SC SC BK BK BK OV OV OV OV SC
Cloud Cover (%) 75 65 30 55 70 75 60 40 50 65 65 70 100 100 75 70 45
Temperature 40 36 34 31 28 29 33 35 31 30 29 30 32 32 30 23 18
Min/Max Temp 27 36 27 33
Wind Dir SW SW SW SW SW SW SW SW SW SW S S S SW W W W
Wind (mph) 17 20 23 21 18 13 13 16 16 18 20 24 28 31 29 29 27
Wind Gust (mph) 48 56 62 63 55 44 42 44 37 44 51 59 69 72 67 66 59
Precip Prob (%) 10 0 5 5 20 20 10 5 5 5 30 30 100 100 60 60 5
Precip Type S S S S S S S S
6 Hour QPF 0.00 0.00 0.01 0.00 0.00 0.01 0.25 0.04
12 Hour QPF 0.00 0.01 0.01 0.29
Low End QPF 0.00 0.00 0.01 0.01
High End QPF 0.06 0.03 0.37 0.34
6 Hour Snow 0.0 0.0 0.1 0.0 0.0 0.1 2.2 0.6
12 Hour Snow 0.0 0.1 0.1 2.8
Low End Snow 0.0 0.0 0.1 0.1
High End Snow 0.4 0.3 4.8 3.5
Snow Level (kft) 6.7 7.0 7.0 6.7 6.4 6.3 6.5 6.7 6.5 6.3 6.4 6.6 7.3 7.2 5.6 3.4 2.3
Snow Density (%) 25 25 16 16 10 10 10 10 11 11 11 11 11 11 7 7 5
...Gallatin Range/Hyalite Mountains...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover OV BK SC BK OV OV BK SC SC BK BK BK OV OV OV OV BK
Cloud Cover (%) 80 65 35 55 75 80 55 45 45 60 60 65 100 100 75 70 55
Temperature 43 38 36 34 31 32 36 38 34 32 30 31 34 33 31 23 19
Min/Max Temp 30 39 28 35
Wind Dir SW SW S SW SW W W SW SW SW SW S SW SW W W W
Wind (mph) 18 20 23 23 19 14 14 16 16 18 19 21 26 28 28 29 28
Wind Gust (mph) 40 44 51 54 48 43 42 43 35 41 43 50 59 64 65 64 57
Precip Prob (%) 20 0 5 10 10 20 10 5 5 5 20 20 100 100 60 60 5
Precip Type S S S S S S S S
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.21 0.04
12 Hour QPF 0.00 0.00 0.00 0.25
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.07 0.03 0.28 0.29
6 Hour Snow 0.0 0.0 0.0 0.0 0.0 0.0 1.5 0.6
12 Hour Snow 0.0 0.0 0.0 2.1
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.2 0.2 3.7 2.9
Snow Level (kft) 7.2 7.6 7.4 7.2 6.8 6.6 6.7 6.8 6.4 6.1 6.2 6.5 7.3 7.2 5.5 3.3 2.2
Snow Density (%) 33 33 20 20 12 12 11 11 12 12 14 14 12 12 7 7 5
...Lionhead Range...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover OV OV SC SC OV OV OV OV OV OV OV OV OV OV OV OV SC
Cloud Cover (%) 75 70 25 45 70 80 75 70 80 95 85 85 100 100 85 85 35
Temperature 35 31 29 28 26 26 31 33 33 33 31 31 32 32 33 29 22
Min/Max Temp 25 35 29 35
Wind Dir SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW W W
Wind (mph) 12 14 16 17 14 12 11 13 13 17 19 23 26 32 28 24 23
Wind Gust (mph) 35 37 32 28 31 34 40 44 51 61 55 48 44
Precip Prob (%) 5 5 0 5 20 30 20 30 20 20 60 60 100 100 80 80 20
Precip Type S S S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.01 0.02 0.03 0.09 0.32 0.07
12 Hour QPF 0.00 0.03 0.12 0.39
Low End QPF 0.00 0.00 0.07 0.00
High End QPF 0.05 0.11 0.66 0.38
6 Hour Snow 0.0 0.0 0.1 0.1 0.2 0.7 1.9 0.7
12 Hour Snow 0.0 0.2 0.9 2.6
Low End Snow 0.0 0.0 0.6 0.0
High End Snow 0.4 1.2 6.7 3.0
Snow Level (kft) 5.1 5.2 5.1 5.1 5.2 5.4 5.9 6.5 7.0 6.9 6.8 6.9 7.2 7.4 6.6 4.1 2.7
Snow Density (%) 20 20 16 16 12 12 12 12 12 12 12 12 12 12 9 9 5
...Tobacco Root Mountains...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover OV SC SC BK OV OV SC SC SC BK SC BK OV OV BK BK SC
Cloud Cover (%) 70 50 45 60 80 85 50 45 45 55 50 60 95 95 60 60 40
Temperature 42 39 39 36 33 34 36 39 36 33 31 31 34 34 29 23 19
Min/Max Temp 32 39 27 35
Wind Dir SW SW SW SW SW W SW SW SW SW SW SW SW SW W W W
Wind (mph) 23 27 29 29 25 18 18 23 20 23 24 26 32 34 37 37 34
Wind Gust (mph) 50 59 66 67 56 46 47 50 43 49 52 57 65 70 74 72 66
Precip Prob (%) 10 5 5 10 20 20 5 5 0 0 20 20 90 90 40 40 0
Precip Type S S S S S S S S
6 Hour QPF 0.00 0.01 0.04 0.00 0.00 0.00 0.27 0.02
12 Hour QPF 0.01 0.04 0.00 0.29
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.15 0.07 0.35 0.31
6 Hour Snow 0.0 0.1 0.3 0.0 0.0 0.0 1.9 0.2
12 Hour Snow 0.1 0.3 0.0 2.1
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.9 0.6 4.3 2.8
Snow Level (kft) 7.7 8.0 8.0 7.6 7.2 6.9 6.7 6.9 6.6 6.1 6.0 6.4 7.2 6.8 4.0 2.9 2.2
Snow Density (%) 33 33 20 20 12 12 12 12 12 12 14 14 12 12 6 6 5
...Snowcrest/Gravelly/Ruby/Blacktail Ranges...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover OV BK SC SC BK BK SC SC SC BK BK BK OV OV BK BK SC
Cloud Cover (%) 80 60 35 50 55 65 40 25 40 65 65 70 95 95 65 65 35
Temperature 41 36 34 32 29 30 36 39 33 31 30 31 33 33 32 26 20
Min/Max Temp 28 40 28 35
Wind Dir SW SW S SW SW SW SW SW SW S S S S SW W W W
Wind (mph) 16 19 21 20 17 13 14 17 13 17 20 24 28 32 34 33 28
Wind Gust (mph) 35 43 51 52 46 39 39 41 33 36 43 52 62 67 65 62 55
Precip Prob (%) 5 0 0 5 10 10 5 5 5 5 20 20 90 90 40 40 0
Precip Type S S S S S S S S
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.19 0.02
12 Hour QPF 0.00 0.00 0.00 0.21
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.04 0.01 0.31 0.25
6 Hour Snow 0.0 0.0 0.0 0.0 0.0 0.0 1.2 0.3
12 Hour Snow 0.0 0.0 0.0 1.5
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.2 0.1 3.8 2.1
Snow Level (kft) 6.6 7.0 7.0 6.6 6.5 6.4 6.5 6.7 6.3 6.1 6.2 6.4 7.2 7.0 5.1 3.4 2.5
Snow Density (%) 33 33 20 20 14 14 14 14 14 14 14 14 14 14 7 7 5
...Centennial Mountains...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover OV BK SC BK BK BK SC BK BK OV OV OV OV OV OV OV SC
Cloud Cover (%) 80 70 40 50 55 65 50 55 60 85 80 85 100 100 75 75 25
Temperature 35 31 29 27 24 25 30 33 29 30 29 30 31 32 32 26 21
Min/Max Temp 23 34 28 33
Wind Dir S S S S SW SW S S S S S S S SW W W W
Wind (mph) 11 12 14 13 10 9 10 11 11 14 18 23 28 33 32 29 26
Wind Gust (mph) 35 42 51 58 56 51 48
Precip Prob (%) 5 5 5 5 20 20 5 10 10 10 40 40 100 100 70 70 10
Precip Type S S S S S S S S S
6 Hour QPF 0.00 0.00 0.00 0.01 0.01 0.04 0.25 0.03
12 Hour QPF 0.00 0.01 0.05 0.28
Low End QPF 0.00 0.00 0.03 0.00
High End QPF 0.03 0.04 0.44 0.29
6 Hour Snow 0.0 0.0 0.0 0.0 0.1 0.4 1.9 0.4
12 Hour Snow 0.0 0.0 0.5 2.3
Low End Snow 0.0 0.0 0.3 0.0
High End Snow 0.2 0.4 4.8 2.4
Snow Level (kft) 5.4 5.2 5.2 5.0 5.1 5.1 5.5 6.2 6.6 6.6 6.4 6.5 7.2 7.3 6.1 3.9 2.7
Snow Density (%) 25 25 20 20 12 12 12 12 14 14 12 12 12 12 8 8 5
...Anaconda/Highland Ranges...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover OV BK BK BK OV OV BK SC SC SC OV OV OV OV OV OV BK
Cloud Cover (%) 80 60 55 65 75 75 55 45 45 45 70 80 100 100 70 70 60
Temperature 40 38 37 35 32 32 35 37 34 31 29 31 34 33 27 22 19
Min/Max Temp 31 38 24 34
Wind Dir SW SW SW W W W W W W SW SW SW SW SW W W W
Wind (mph) 13 18 21 21 17 12 13 16 12 16 17 20 25 27 28 27 25
Wind Gust (mph) 37 43 51 56 47 39 40 42 33 36 39 47 57 64 64 59 51
Precip Prob (%) 40 20 20 50 70 30 30 20 10 10 80 80 100 100 70 70 20
Precip Type S S S S S S S S S S S S S S S S S
6 Hour QPF 0.03 0.06 0.03 0.01 0.00 0.10 0.33 0.03
12 Hour QPF 0.09 0.04 0.10 0.36
Low End QPF 0.02 0.00 0.08 0.01
High End QPF 0.17 0.07 0.59 0.44
6 Hour Snow 0.0 0.2 0.3 0.1 0.0 0.7 2.4 0.6
12 Hour Snow 0.2 0.4 0.7 3.0
Low End Snow 0.1 0.0 0.5 0.2
High End Snow 0.9 0.7 6.7 5.1
Snow Level (kft) 8.2 8.2 7.7 7.4 6.7 6.3 6.5 6.8 6.5 6.0 6.0 6.7 7.3 6.0 3.1 2.6 2.2
Snow Density (%) 33 33 20 20 11 11 12 12 12 12 16 16 12 12 5 5 5
...Pioneer Mountains...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover OV SC BK OV OV OV BK SC SC SC BK OV OV OV BK BK BK
Cloud Cover (%) 75 40 60 70 75 75 60 35 40 40 65 80 100 100 65 65 65
Temperature 40 37 37 35 32 32 35 37 33 31 29 31 34 32 26 20 18
Min/Max Temp 31 37 23 35
Wind Dir SW SW SW W W W W W SW SW SW SW SW SW W W W
Wind (mph) 16 19 23 24 20 16 16 18 14 17 18 21 26 31 32 29 27
Wind Gust (mph) 46 52 64 72 57 48 48 49 39 46 50 58 69 77 75 70 64
Precip Prob (%) 20 5 5 20 40 40 10 5 5 5 50 50 100 100 40 40 5
Precip Type S S S S S S S S S S S
6 Hour QPF 0.00 0.04 0.05 0.00 0.00 0.05 0.30 0.02
12 Hour QPF 0.04 0.05 0.05 0.32
Low End QPF 0.01 0.00 0.05 0.00
High End QPF 0.11 0.07 0.48 0.35
6 Hour Snow 0.0 0.2 0.5 0.0 0.0 0.4 2.4 0.4
12 Hour Snow 0.2 0.5 0.4 2.8
Low End Snow 0.0 0.0 0.4 0.1
High End Snow 0.7 0.8 6.8 3.9
Snow Level (kft) 8.0 8.2 8.0 7.7 7.1 6.8 6.8 6.9 6.5 6.1 6.3 7.0 7.5 6.4 3.4 2.7 2.3
Snow Density (%) 33 33 20 20 11 11 11 11 12 12 14 14 11 11 5 5 5
...Beaverhead/Tendoy Mountains...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover BK SC BK BK BK BK SC FW SC BK BK OV OV OV BK BK BK
Cloud Cover (%) 70 45 55 65 70 65 45 20 40 55 65 75 95 95 65 65 55
Temperature 39 36 36 34 32 32 36 38 33 31 30 31 34 34 29 23 19
Min/Max Temp 31 39 26 35
Wind Dir SW SW SW SW SW W SW SW SW SW SW SW S SW W W W
Wind (mph) 13 17 20 20 18 14 16 17 13 16 17 21 27 31 33 31 26
Wind Gust (mph) 34 46 56 59 48 40 40 41 33 40 44 55 64 71 67 62 57
Precip Prob (%) 10 5 5 10 20 10 5 5 5 5 40 40 100 100 50 50 5
Precip Type S S S S S S S S S S
6 Hour QPF 0.03 0.04 0.03 0.00 0.00 0.05 0.29 0.02
12 Hour QPF 0.07 0.03 0.05 0.31
Low End QPF 0.01 0.00 0.04 0.00
High End QPF 0.12 0.05 0.45 0.35
6 Hour Snow 0.1 0.2 0.3 0.0 0.0 0.4 2.1 0.3
12 Hour Snow 0.3 0.3 0.4 2.4
Low End Snow 0.0 0.0 0.3 0.0
High End Snow 0.7 0.4 5.6 3.5
Snow Level (kft) 7.5 8.0 8.0 7.7 7.4 7.0 6.9 7.0 6.5 6.2 6.5 7.0 7.6 6.9 4.5 3.2 2.6
Snow Density (%) 33 33 20 20 12 12 12 12 14 14 14 14 12 12 6 6 5
...Absoraka-Beartooth/Cooke City Mountains...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover BK BK SC OV OV OV OV OV OV OV OV OV OV OV OV OV BK
Cloud Cover (%) 50 50 50 70 80 80 80 80 85 85 80 80 100 100 90 90 60
Temperature 31 27 25 24 23 25 29 30 27 28 27 28 29 29 28 21 14
Min/Max Temp 22 31 26 30
Wind Dir SW SW SW SW SW SW SW SW SW SW SW SW SW SW W W W
Wind (mph) 19 19 19 20 19 17 17 19 17 19 20 21 26 29 31 32 28
Wind Gust (mph) 48 47 51 56 52 47 46 48 41 43 46 51 62 66 67 66 61
Precip Prob (%) 5 0 0 5 20 20 20 20 10 10 40 40 100 100 80 80 20
Precip Type
6 Hour QPF 0.00 0.00 0.04 0.03 0.02 0.06 0.36 0.15
12 Hour QPF 0.00 0.07 0.08 0.51
Low End QPF 0.00 0.01 0.06 0.03
High End QPF 0.07 0.12 0.53 0.61
6 Hour Snow 0.0 0.0 0.4 0.3 0.2 0.7 3.8 2.1
12 Hour Snow 0.0 0.7 0.9 5.9
Low End Snow 0.0 0.1 0.7 0.6
High End Snow 0.9 1.7 7.0 7.2
Snow Level (kft) 6.1 6.1 6.3 5.9 6.1 6.0 6.4 6.8 6.8 6.8 6.8 6.9 7.4 7.6 6.5 3.7 2.3
Snow Density (%) 12 12 11 11 8 8 7 7 8 8 9 9 9 9 7 7 5
...Absoraka Mountains Above 6000ft Northeast Facing...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover BK BK SC SC SC BK SC SC SC SC BK BK OV OV OV OV SC
Cloud Cover (%) 55 60 35 30 40 50 40 35 45 45 50 55 95 95 90 90 50
Temperature 40 37 35 33 31 32 35 36 33 32 31 32 34 35 33 25 19
Min/Max Temp 30 37 30 36
Wind Dir SW SW SW SW SW SW W SW SW SW SW SW SW SW W W W
Wind (mph) 29 33 34 36 33 26 23 23 21 25 27 31 36 37 37 39 37
Wind Gust (mph) 67 77 88 95 87 72 63 61 55 66 73 84 95 94 88 85 82
Precip Prob (%) 5 0 0 0 10 10 20 10 5 5 30 30 100 100 80 80 20
Precip Type
6 Hour QPF 0.00 0.00 0.03 0.01 0.01 0.02 0.21 0.10
12 Hour QPF 0.00 0.04 0.03 0.31
Low End QPF 0.00 0.00 0.01 0.01
High End QPF 0.04 0.07 0.30 0.33
6 Hour Snow 0.0 0.0 0.3 0.1 0.1 0.2 1.5 1.2
12 Hour Snow 0.0 0.4 0.3 2.7
Low End Snow 0.0 0.0 0.1 0.2
High End Snow 0.3 0.8 3.2 3.5
Snow Level (kft) 7.3 7.8 7.6 7.0 6.7 6.4 6.5 6.7 6.6 6.5 6.6 6.8 7.4 7.6 6.3 3.7 2.3
Snow Density (%) 33 33 20 20 12 12 11 11 12 12 12 12 14 14 8 8 6
...Absoraka Mountains Above 6000ft West Facing...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover BK BK SC BK OV OV BK BK BK OV BK OV OV OV OV OV BK
Cloud Cover (%) 65 60 35 55 70 75 65 60 65 70 70 75 100 100 85 80 50
Temperature 38 33 31 29 27 29 33 35 32 31 30 31 32 33 32 25 19
Min/Max Temp 26 36 29 34
Wind Dir SW SW SW SW SW SW SW SW SW SW SW SW SW SW W W W
Wind (mph) 17 18 19 20 18 14 14 17 16 18 19 21 26 28 29 29 27
Wind Gust (mph) 63 74 84 89 84 70 59 59 52 62 70 79 89 89 82 77 77
Precip Prob (%) 10 0 0 5 20 20 10 10 5 5 30 30 100 100 70 70 10
Precip Type S S S S S S S S
6 Hour QPF 0.00 0.00 0.01 0.01 0.01 0.03 0.26 0.07
12 Hour QPF 0.00 0.02 0.04 0.33
Low End QPF 0.00 0.00 0.03 0.01
High End QPF 0.05 0.06 0.42 0.38
6 Hour Snow 0.0 0.0 0.1 0.1 0.1 0.3 2.1 1.0
12 Hour Snow 0.0 0.2 0.4 3.1
Low End Snow 0.0 0.0 0.3 0.2
High End Snow 0.4 0.7 5.0 4.0
Snow Level (kft) 6.3 6.4 6.4 6.2 6.1 6.1 6.5 6.8 6.7 6.6 6.7 6.8 7.3 7.4 6.2 3.7 2.3
Snow Density (%) 20 20 14 14 10 10 10 10 11 11 11 11 11 11 7 7 5
...Crazy Mountains...
Date Tuesday 12/16/25 Wednesday 12/17/25
Time (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p
Cloud Cover BK SC SC BK BK BK SC SC BK SC SC BK OV OV BK BK BK
Cloud Cover (%) 50 40 25 50 65 65 45 50 65 45 40 55 95 95 70 65 60
Temperature 44 41 41 38 34 35 37 39 37 36 33 34 36 37 32 25 22
Min/Max Temp 33 40 30 38
Wind Dir W W SW W W W W W W W SW SW SW SW W W W
Wind (mph) 33 40 41 43 41 35 32 28 23 26 27 32 39 42 47 49 47
Wind Gust (mph) 72 86 93 100 92 79 67 63 49 56 62 73 86 92 93 93 89
Precip Prob (%) 10 0 0 5 10 10 5 5 5 5 10 10 90 90 50 50 10
Precip Type S S S S
6 Hour QPF 0.00 0.02 0.01 0.00 0.00 0.00 0.20 0.03
12 Hour QPF 0.02 0.01 0.00 0.23
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.07 0.04 0.24 0.25
6 Hour Snow 0.0 0.0 0.1 0.0 0.0 0.0 1.1 0.4
12 Hour Snow 0.0 0.1 0.0 1.5
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.3 0.4 2.7 2.1
Snow Level (kft) 7.9 8.3 8.0 7.4 6.8 6.1 6.0 6.4 6.3 6.0 5.7 6.0 6.9 6.8 4.6 2.9 2.0
Snow Density (%) 50 50 25 25 12 12 12 12 14 14 16 16 16 16 7 7 6
$$
--- Precip Type Codes ---
CODE TYPE
T Thunderstorms
R Rain
S Snow
I Sleet
Z Freezing Rain