Avalanche Weather Guidance
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
027
FWUS45 KTFX 111002
AVGTFX
Avalanche Weather Guidance
National Weather Service Great Falls MT
300 AM MST Thu Dec 11 2025
...Glacier National Park/Marias Pass...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 95 95 90 85 75 80 85 85 95 95 95 95 90 90 85 85 80
Temperature 39 36 34 28 22 18 16 15 14 14 17 24 24 26 26 23 21
Max/Min Temp 37 11 26 18
Wind Dir W W W W W NW NW W W NE S SW SW SW W W W
Wind (mph) 32 26 17 12 10 10 9 8 6 8 9 12 13 16 17 14 12
Wind Gust (mph) 77 63 44 33 33 41 42 40 32
Precip Prob (%) 80 40 40 20 30 20 5 20 90 90 90 90 70 70 60 60 40
Precip Type S S S S S S S S S S S S S S S S
6 Hour QPF 0.21 0.02 0.02 0.03 0.09 0.14 0.08 0.10
12 Hour QPF 0.23 0.05 0.23 0.18
Low End QPF 0.13 0.04 0.05 0.01
High End QPF 0.48 0.27 0.41 0.23
6 Hour Snow 0.8 0.6 0.3 0.6 1.6 1.6 1.1 1.3
12 Hour Snow 1.4 0.9 3.2 2.4
Low End Snow 0.2 0.6 0.5 0.1
High End Snow 4.0 3.9 4.8 3.1
Snow Level (kft) 6.9 5.6 3.8 2.9 2.1 1.0 0.2 0.4 0.6 0.5 1.0 1.3 1.9 2.5 2.5 2.2 1.9
Snow Density (%) 14 14 8 8 7 7 6 6 6 6 7 7 9 9 8 8 9
...Bob Marshall/Scapegoat Wilderness...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 100 100 95 95 80 75 75 85 100 100 100 95 80 75 75 75 75
Temperature 39 37 37 34 30 27 26 25 25 25 28 32 31 32 33 32 28
Max/Min Temp 38 22 33 25
Wind Dir W W W W W W W W W W W W W W W W W
Wind (mph) 33 29 21 16 11 10 9 8 8 8 9 13 13 17 18 17 12
Wind Gust (mph) 79 70 50 37 31 29 27 34 39 44 47 43 36
Precip Prob (%) 100 80 90 60 60 50 40 60 100 100 100 100 60 60 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 0.49 0.21 0.12 0.17 0.18 0.13 0.04 0.05
12 Hour QPF 0.70 0.29 0.31 0.09
Low End QPF 0.20 0.12 0.04 0.00
High End QPF 0.80 0.53 0.37 0.17
6 Hour Snow 0.3 1.0 1.3 2.2 2.8 0.9 0.4 0.5
12 Hour Snow 1.3 3.5 3.7 0.9
Low End Snow 0.4 1.2 0.3 0.0
High End Snow 5.0 6.6 4.5 1.7
Snow Level (kft) 7.3 6.9 6.2 5.3 4.2 2.9 2.0 2.1 2.1 2.3 2.9 3.2 3.9 4.5 4.3 4.0 3.4
Snow Density (%) 20 20 12 12 8 8 7 7 7 7 10 10 12 12 12 12 11
...Nevada Mountains...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover OV OV OV OV OV OV OV OV OV OV OV OV OV BK BK BK BK
Cloud Cover (%) 85 85 95 95 90 90 90 90 95 95 90 85 70 65 65 65 70
Temperature 42 41 40 38 34 31 29 28 26 26 29 35 34 36 37 36 31
Max/Min Temp 41 23 36 28
Wind Dir W W W W NW NW NW NW NW NW W W W SW W W W
Wind (mph) 31 28 23 17 11 10 9 9 8 9 9 13 14 18 18 16 12
Wind Gust (mph) 64 58 47 39 31 27 32 35 42 43 39 31
Precip Prob (%) 70 70 80 90 80 70 60 70 100 100 80 80 40 40 40 40 20
Precip Type R R R S S S S S S S S S S S S S S
6 Hour QPF 0.31 0.30 0.21 0.19 0.19 0.07 0.02 0.01
12 Hour QPF 0.61 0.40 0.26 0.03
Low End QPF 0.06 0.14 0.01 0.00
High End QPF 0.63 0.50 0.31 0.10
6 Hour Snow 0.0 0.3 1.5 2.0 1.5 0.1 0.0 0.0
12 Hour Snow 0.3 3.5 1.6 0.0
Low End Snow 0.0 0.8 0.0 0.0
High End Snow 1.2 4.6 2.3 0.8
Snow Level (kft) 7.6 7.3 6.9 6.0 4.5 2.8 1.3 0.9 2.4 2.5 3.2 3.8 4.5 5.1 4.8 4.3 3.6
Snow Density (%) 33 33 20 20 12 12 9 9 10 10 12 12 20 20 16 16 14
...Elkhorn/Boulder Mountains...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover BK BK OV OV OV OV OV OV OV OV OV BK BK BK BK BK BK
Cloud Cover (%) 60 60 75 85 85 90 90 90 90 90 80 65 60 60 55 60 70
Temperature 41 40 40 40 37 37 37 37 37 37 38 38 36 35 35 34 32
Max/Min Temp 41 36 39 30
Wind Dir W W W W W NW W W W W W W W SW W W W
Wind (mph) 25 25 21 17 11 10 9 9 9 9 10 12 11 13 16 14 12
Wind Gust (mph) 61 57 48 39 28 32
Precip Prob (%) 20 30 30 50 70 60 50 70 70 70 40 40 20 20 20 20 10
Precip Type R Z R S S S S S S S S S S S S S
6 Hour QPF 0.04 0.14 0.13 0.10 0.11 0.02 0.00 0.00
12 Hour QPF 0.18 0.23 0.13 0.00
Low End QPF 0.00 0.05 0.00 0.00
High End QPF 0.21 0.34 0.16 0.03
6 Hour Snow 0.0 0.0 0.3 0.2 0.1 0.0 0.0 0.0
12 Hour Snow 0.0 0.5 0.1 0.0
Low End Snow 0.0 0.1 0.0 0.0
High End Snow 0.5 2.2 0.8 0.2
Snow Level (kft) 7.6 7.7 7.6 7.3 6.8 5.7 5.7 5.6 5.3 5.3 5.8 5.9 6.1 6.1 5.5 5.0 4.6
Snow Density (%) 33 33 25 25 16 16 14 14 14 14 16 16 20 20 20 20 16
...Big Belt Mountains...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 75 80 95 95 90 85 90 90 95 95 90 80 75 75 70 80 85
Temperature 43 42 42 39 33 30 28 27 25 24 27 32 32 33 35 33 29
Max/Min Temp 43 23 34 26
Wind Dir SW W W W NW NW NW NW NW NW NW W SW SW SW W W
Wind (mph) 26 24 20 16 11 10 10 9 9 6 6 10 11 14 16 13 11
Wind Gust (mph) 66 54 46 39 29 35 32
Precip Prob (%) 10 20 40 80 80 50 60 60 90 90 70 70 30 30 30 30 20
Precip Type R Z Z S S S S S S S S S S S S S S
6 Hour QPF 0.02 0.15 0.17 0.14 0.13 0.06 0.01 0.01
12 Hour QPF 0.17 0.31 0.19 0.02
Low End QPF 0.02 0.12 0.00 0.00
High End QPF 0.25 0.40 0.23 0.06
6 Hour Snow 0.0 0.2 1.2 1.3 1.2 0.2 0.1 0.0
12 Hour Snow 0.2 2.5 1.4 0.1
Low End Snow 0.0 0.9 0.0 0.0
High End Snow 1.0 3.9 1.9 0.5
Snow Level (kft) 7.4 7.3 7.0 6.0 4.0 2.0 1.4 1.2 1.9 1.9 2.4 3.2 4.0 4.7 4.4 3.9 3.2
Snow Density (%) 50 50 20 20 11 11 9 9 9 9 12 12 16 16 16 16 12
...Little Belt Mountains...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 80 85 100 95 90 75 85 95 100 100 95 95 85 80 80 85 85
Temperature 42 41 41 36 30 27 26 25 24 23 26 30 29 31 33 32 27
Max/Min Temp 42 21 32 22
Wind Dir W W W NW NW NW NW NW NW NW NW SW W W W W W
Wind (mph) 27 26 23 16 9 6 5 4 4 4 6 11 12 14 14 13 11
Wind Gust (mph) 63 59 49 37 26 34 39 40 36 32
Precip Prob (%) 10 40 70 80 70 30 50 60 100 100 100 100 50 50 50 50 20
Precip Type Z S S S S S S S S S S S S S S S
6 Hour QPF 0.05 0.31 0.10 0.17 0.22 0.15 0.03 0.03
12 Hour QPF 0.36 0.27 0.37 0.06
Low End QPF 0.09 0.19 0.02 0.00
High End QPF 0.39 0.47 0.44 0.11
6 Hour Snow 0.0 1.1 1.2 2.4 2.9 1.2 0.3 0.2
12 Hour Snow 1.1 3.6 4.1 0.5
Low End Snow 0.4 2.5 0.1 0.0
High End Snow 2.9 6.6 5.2 1.3
Snow Level (kft) 7.4 7.2 6.8 5.5 3.3 1.9 2.1 1.6 1.4 1.4 1.7 2.0 2.9 3.9 3.9 3.5 2.7
Snow Density (%) 33 33 14 14 7 7 7 7 7 7 8 8 12 12 12 12 9
...Highwood Mountains...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 95 95 100 100 90 85 95 95 100 100 100 95 90 85 85 90 90
Temperature 45 43 42 32 22 18 15 12 10 7 7 11 11 14 18 16 13
Max/Min Temp 44 6 15 9
Wind Dir W W W NW NW NW NW NW NW N NE E E N NW NW NW
Wind (mph) 36 34 26 16 9 8 8 8 8 6 6 8 8 10 11 11 10
Wind Gust (mph) 59 58 44
Precip Prob (%) 10 30 90 60 50 30 30 60 100 100 100 100 60 60 50 50 20
Precip Type R R R S S S S S S S S S S S S S S
6 Hour QPF 0.07 0.26 0.05 0.11 0.18 0.21 0.06 0.08
12 Hour QPF 0.33 0.16 0.39 0.14
Low End QPF 0.07 0.13 0.07 0.01
High End QPF 0.48 0.48 0.48 0.17
6 Hour Snow 0.0 1.0 0.7 1.7 3.6 2.7 0.8 0.7
12 Hour Snow 1.0 2.4 6.3 1.5
Low End Snow 0.3 1.8 0.8 0.0
High End Snow 3.3 7.5 7.7 2.0
Snow Level (kft) 7.6 7.0 5.2 1.5 0.3 0.2 0.1 0.0 0.0 0.0 0.0 0.0 0.2 0.7 1.4 1.2 0.8
Snow Density (%) 50 50 12 12 7 7 6 6 6 6 7 7 9 9 10 10 8
...Snowy/Judith Mountains...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 85 90 95 95 85 75 95 95 100 100 100 95 90 90 85 90 90
Temperature 46 45 44 36 25 23 21 20 16 13 11 12 11 13 18 19 15
Max/Min Temp 45 10 15 9
Wind Dir W W NW NW NW NW NW NW N N E SE SE S SW NW NW
Wind (mph) 27 27 24 18 12 10 6 6 6 5 5 6 6 8 9 8 8
Wind Gust (mph) 62 61 49 37
Precip Prob (%) 10 50 80 70 50 20 40 50 100 100 100 100 60 60 50 50 20
Precip Type R R R S S S S S S S S S S S S S S
6 Hour QPF 0.07 0.30 0.06 0.18 0.17 0.19 0.10 0.07
12 Hour QPF 0.37 0.24 0.36 0.17
Low End QPF 0.05 0.13 0.12 0.01
High End QPF 0.44 0.49 0.50 0.20
6 Hour Snow 0.0 1.0 0.8 2.8 3.5 2.9 1.7 0.9
12 Hour Snow 1.0 3.6 6.4 2.6
Low End Snow 0.2 1.9 1.3 0.1
High End Snow 2.5 8.0 7.7 3.1
Snow Level (kft) 7.7 7.2 6.4 4.2 1.0 0.3 0.6 0.3 0.2 0.2 0.2 0.2 0.2 0.7 1.2 1.2 1.0
Snow Density (%) 50 50 16 16 7 7 6 6 6 6 6 6 8 8 9 9 7
...Bears Paw Mountains...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover OV OV OV OV BK BK OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 95 100 90 85 65 70 90 95 90 90 95 95 90 90 90 90 85
Temperature 41 40 38 26 15 12 9 7 4 3 5 7 6 4 5 6 4
Max/Min Temp 40 0 8 0
Wind Dir W W NW NW NW NW NW NW N NE E E SE SE E NE N
Wind (mph) 18 24 21 16 10 10 9 8 8 8 8 9 9 10 9 6 5
Wind Gust (mph) 35 43 40
Precip Prob (%) 80 40 20 10 20 30 50 40 80 80 90 90 90 90 60 60 30
Precip Type R R S S S S S S S S S S S S S S S
6 Hour QPF 0.21 0.04 0.05 0.05 0.05 0.10 0.24 0.13
12 Hour QPF 0.25 0.10 0.15 0.37
Low End QPF 0.04 0.03 0.12 0.04
High End QPF 0.37 0.18 0.54 0.44
6 Hour Snow 0.0 0.2 0.8 1.0 1.4 2.9 2.7 1.8
12 Hour Snow 0.2 1.8 4.3 4.5
Low End Snow 0.1 0.3 2.8 0.5
High End Snow 1.4 3.0 8.6 5.6
Snow Level (kft) 6.7 5.8 1.8 0.3 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Snow Density (%) 25 25 9 9 6 6 5 5 5 5 5 5 6 6 6 6 6
...Castle/Crazy Mountains...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 80 90 95 95 90 90 90 90 95 95 90 85 75 75 75 80 85
Temperature 41 40 41 40 36 34 33 32 31 31 32 35 34 35 36 36 33
Max/Min Temp 41 29 36 30
Wind Dir SW W W W W W W W W SW SW W W SW W W W
Wind (mph) 28 27 24 21 16 12 10 8 8 8 8 13 13 17 19 18 16
Wind Gust (mph) 79 74 64 56 42 35 27 32 42 49 50 44
Precip Prob (%) 10 20 40 70 80 50 70 70 90 90 70 70 30 30 30 30 10
Precip Type S S S S S S S S S S S S S S S S
6 Hour QPF 0.02 0.27 0.23 0.24 0.24 0.12 0.01 0.01
12 Hour QPF 0.29 0.47 0.36 0.02
Low End QPF 0.03 0.24 0.01 0.00
High End QPF 0.32 0.60 0.43 0.11
6 Hour Snow 0.0 0.2 1.2 2.3 2.4 0.5 0.0 0.0
12 Hour Snow 0.2 3.5 2.9 0.0
Low End Snow 0.0 2.2 0.0 0.0
High End Snow 1.5 6.9 4.1 1.1
Snow Level (kft) 7.1 7.2 7.2 6.9 5.9 5.0 3.8 3.3 3.5 3.4 3.7 4.2 4.9 5.4 5.1 4.6 4.2
Snow Density (%) 33 33 20 20 12 12 8 8 8 8 12 12 16 16 16 16 14
...Bridger Range...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover BK OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 70 80 95 95 90 95 95 95 95 95 95 75 75 75 75 85 85
Temperature 42 42 42 41 38 37 36 36 36 36 37 38 37 37 37 37 34
Max/Min Temp 42 35 39 32
Wind Dir SW W W W W W W W W W W W W SW SW W W
Wind (mph) 23 23 19 17 12 10 6 6 6 8 9 13 12 14 16 14 12
Wind Gust (mph) 55 57 49 40 31 32 31 36 40 37 31
Precip Prob (%) 5 20 20 50 70 60 70 70 80 80 50 50 20 20 20 20 10
Precip Type R S R S S S S S S S S S S S S
6 Hour QPF 0.00 0.17 0.20 0.22 0.24 0.06 0.01 0.00
12 Hour QPF 0.17 0.42 0.30 0.01
Low End QPF 0.01 0.19 0.01 0.00
High End QPF 0.22 0.59 0.36 0.06
6 Hour Snow 0.0 0.0 0.2 0.4 0.5 0.0 0.0 0.0
12 Hour Snow 0.0 0.6 0.5 0.0
Low End Snow 0.0 0.2 0.0 0.0
High End Snow 0.3 3.7 1.5 0.3
Snow Level (kft) 7.2 7.2 7.4 7.5 6.9 5.9 5.5 4.9 5.2 5.2 5.6 5.8 6.0 6.1 5.5 5.0 4.6
Snow Density (%) 33 33 25 25 20 20 14 14 14 14 16 16 25 25 20 20 16
...Madison Range/Spanish Peaks...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover BK BK OV OV OV OV OV OV OV OV OV BK BK BK BK OV OV
Cloud Cover (%) 65 65 75 90 90 90 90 85 90 85 85 70 65 70 65 70 75
Temperature 34 33 35 35 34 34 35 35 35 34 34 35 32 30 30 30 29
Max/Min Temp 36 34 35 27
Wind Dir SW SW SW SW SW W W W SW SW SW SW SW SW SW SW SW
Wind (mph) 19 18 16 14 12 12 11 11 12 12 12 13 13 16 16 16 13
Wind Gust (mph) 47 46 42 36 29 31 28 29 29 31 31 32 32 39 40 37 33
Precip Prob (%) 5 5 10 30 40 50 50 60 50 50 20 20 10 10 10 10 5
Precip Type S S S S S S S S S
6 Hour QPF 0.00 0.04 0.08 0.10 0.08 0.01 0.00 0.00
12 Hour QPF 0.04 0.18 0.09 0.00
Low End QPF 0.00 0.02 0.00 0.00
High End QPF 0.07 0.27 0.11 0.01
6 Hour Snow 0.0 0.1 0.4 0.5 0.5 0.0 0.0 0.0
12 Hour Snow 0.1 0.9 0.5 0.0
Low End Snow 0.0 0.1 0.0 0.0
High End Snow 0.4 1.9 0.7 0.0
Snow Level (kft) 7.1 7.1 7.6 7.9 7.9 7.8 7.6 7.6 7.4 7.4 7.5 7.4 7.1 6.8 6.5 6.1 5.7
Snow Density (%) 16 16 16 16 14 14 12 12 12 12 14 14 16 16 16 16 16
...Gallatin Range/Hyalite Mountains...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover OV OV OV OV OV OV OV OV OV OV OV OV BK OV BK OV OV
Cloud Cover (%) 70 70 80 95 90 90 90 90 90 90 85 70 70 70 70 80 80
Temperature 37 36 38 37 36 35 35 35 35 35 36 37 34 32 32 31 30
Max/Min Temp 39 34 37 29
Wind Dir SW SW SW W W W W W W SW SW SW SW SW SW SW SW
Wind (mph) 19 19 17 16 13 12 10 11 11 12 12 14 14 17 17 16 13
Wind Gust (mph) 41 42 42 36 31 29 27 32 35 35 34
Precip Prob (%) 5 10 10 30 60 70 60 70 70 70 40 40 10 10 10 10 10
Precip Type S R S S S S S S S
6 Hour QPF 0.00 0.08 0.09 0.08 0.09 0.01 0.00 0.00
12 Hour QPF 0.08 0.17 0.10 0.00
Low End QPF 0.00 0.04 0.00 0.00
High End QPF 0.09 0.35 0.12 0.03
6 Hour Snow 0.0 0.1 0.3 0.3 0.3 0.0 0.0 0.0
12 Hour Snow 0.1 0.6 0.3 0.0
Low End Snow 0.0 0.1 0.0 0.0
High End Snow 0.4 2.4 0.6 0.2
Snow Level (kft) 7.2 7.3 7.8 8.0 7.9 7.6 7.4 7.4 7.2 7.2 7.4 7.3 7.0 6.8 6.3 5.8 5.5
Snow Density (%) 20 20 16 16 16 16 14 14 14 14 16 16 16 16 16 16 16
...Lionhead Range...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover OV OV OV OV OV OV OV OV OV OV OV BK BK BK BK BK BK
Cloud Cover (%) 75 75 75 90 90 90 85 85 95 90 75 65 60 65 50 55 70
Temperature 33 31 33 34 34 34 34 33 32 32 33 34 32 31 30 28 25
Max/Min Temp 34 31 34 23
Wind Dir SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind (mph) 18 18 14 12 11 12 11 11 11 11 10 11 11 13 13 12 10
Wind Gust (mph)
Precip Prob (%) 5 10 10 20 40 50 50 50 60 60 30 30 10 10 10 10 5
Precip Type S S S S S S S S S
6 Hour QPF 0.00 0.01 0.02 0.05 0.05 0.02 0.01 0.00
12 Hour QPF 0.01 0.07 0.07 0.01
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.03 0.13 0.08 0.01
6 Hour Snow 0.0 0.0 0.1 0.2 0.2 0.0 0.0 0.0
12 Hour Snow 0.0 0.3 0.2 0.0
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.1 0.9 0.4 0.1
Snow Level (kft) 7.0 6.6 6.6 6.8 7.1 7.2 7.1 6.9 6.9 6.8 6.9 7.3 7.2 6.9 6.7 6.2 5.7
Snow Density (%) 20 20 16 16 20 20 16 16 16 16 16 16 16 16 16 16 16
...Tobacco Root Mountains...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover BK BK BK OV OV OV OV OV OV OV OV BK BK BK BK BK BK
Cloud Cover (%) 55 60 65 80 80 90 90 85 90 90 80 60 55 55 55 60 65
Temperature 39 38 39 39 38 38 39 39 39 39 38 39 36 34 34 33 32
Max/Min Temp 39 38 39 31
Wind Dir SW SW W W W W W W W SW SW SW SW SW SW SW SW
Wind (mph) 25 25 23 21 17 17 16 16 14 16 16 18 17 20 21 19 16
Wind Gust (mph) 55 54 49 44 37 36 33 35 34 34 34 36 35 43 46 42 35
Precip Prob (%) 5 5 10 20 40 40 30 50 40 40 20 20 5 5 10 10 5
Precip Type S S S S S S S S
6 Hour QPF 0.00 0.02 0.02 0.05 0.07 0.01 0.00 0.00
12 Hour QPF 0.02 0.07 0.08 0.00
Low End QPF 0.00 0.01 0.00 0.00
High End QPF 0.03 0.17 0.10 0.00
6 Hour Snow 0.0 0.0 0.0 0.2 0.2 0.0 0.0 0.0
12 Hour Snow 0.0 0.2 0.2 0.0
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.2 1.0 0.5 0.0
Snow Level (kft) 7.2 7.4 7.7 7.9 7.8 7.6 7.4 7.4 7.3 7.3 7.4 7.2 7.0 6.7 6.3 5.8 5.4
Snow Density (%) 25 25 20 20 16 16 14 14 16 16 16 16 20 20 20 20 16
...Snowcrest/Gravelly/Ruby/Blacktail Ranges...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover SC BK BK OV OV OV OV OV OV OV BK BK BK BK BK BK BK
Cloud Cover (%) 45 55 65 80 90 80 80 80 80 85 70 60 55 55 50 55 55
Temperature 35 34 38 39 37 37 37 38 37 37 38 39 34 31 31 30 29
Max/Min Temp 39 37 39 28
Wind Dir SW SW SW W W W W W SW SW SW SW SW S S S SW
Wind (mph) 16 16 14 14 12 12 12 12 12 12 12 13 12 13 14 13 11
Wind Gust (mph) 39 37 35 33 29 29 33 33 32
Precip Prob (%) 0 5 10 10 20 20 20 30 20 20 10 10 5 5 5 5 5
Precip Type S S S S S S S
6 Hour QPF 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.01 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.01 0.05 0.01 0.00
6 Hour Snow 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
12 Hour Snow 0.0 0.0 0.0 0.0
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.0 0.2 0.0 0.0
Snow Level (kft) 7.0 6.9 7.5 8.1 8.1 7.9 7.7 7.7 7.6 7.5 7.6 7.4 7.1 6.8 6.5 6.2 5.8
Snow Density (%) 25 25 25 25 20 20 20 20 20 20 20 20 20 20 25 25 20
...Centennial Mountains...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover BK BK BK OV OV OV OV OV OV OV BK BK BK BK BK BK BK
Cloud Cover (%) 55 55 65 80 90 85 80 85 85 80 65 60 65 65 55 65 60
Temperature 32 31 34 34 33 34 35 34 33 32 33 33 30 29 29 28 27
Max/Min Temp 35 32 33 25
Wind Dir SW SW SW SW SW SW W SW SW SW SW S S S S S SW
Wind (mph) 11 11 10 10 9 9 9 9 9 9 9 11 10 10 10 10 9
Wind Gust (mph)
Precip Prob (%) 0 5 10 20 30 30 40 30 30 30 20 20 10 10 10 10 5
Precip Type S S S S S S S S S
6 Hour QPF 0.00 0.01 0.00 0.01 0.00 0.00 0.00 0.00
12 Hour QPF 0.01 0.01 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.01 0.04 0.01 0.00
6 Hour Snow 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
12 Hour Snow 0.0 0.0 0.0 0.0
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.0 0.2 0.0 0.0
Snow Level (kft) 6.8 6.6 7.0 7.5 7.7 7.7 7.6 7.4 7.2 7.1 7.2 7.2 7.0 6.8 6.5 6.1 5.7
Snow Density (%) 25 25 20 20 20 20 20 20 16 16 20 20 20 20 20 20 20
...Anaconda/Highland Ranges...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover OV OV OV OV OV OV OV OV OV OV OV BK SC SC SC SC BK
Cloud Cover (%) 70 80 85 90 85 80 80 85 85 85 75 55 50 50 45 45 50
Temperature 37 37 38 38 37 38 38 38 38 38 38 39 36 34 33 32 30
Max/Min Temp 38 38 39 29
Wind Dir W W W W W W W W W W W W SW SW SW SW SW
Wind (mph) 17 17 14 14 11 12 12 12 12 12 11 13 12 14 14 13 10
Wind Gust (mph) 43 44 41 36 31 32 31 29 29 31 31 32 31 35 34 32 27
Precip Prob (%) 20 50 50 70 70 60 60 60 60 60 30 30 10 10 10 10 5
Precip Type Z Z S S S S S S S S S S S S
6 Hour QPF 0.05 0.09 0.04 0.04 0.05 0.01 0.00 0.00
12 Hour QPF 0.14 0.08 0.06 0.00
Low End QPF 0.02 0.02 0.00 0.00
High End QPF 0.17 0.19 0.08 0.01
6 Hour Snow 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0
12 Hour Snow 0.1 0.0 0.0 0.0
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.5 0.7 0.2 0.0
Snow Level (kft) 7.3 7.5 7.7 7.8 7.6 7.5 7.4 7.4 7.4 7.4 7.4 7.2 7.0 6.8 6.3 5.9 5.5
Snow Density (%) 25 25 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20
...Pioneer Mountains...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover SC BK OV OV OV OV OV OV OV OV OV SC SC SC SC SC SC
Cloud Cover (%) 50 65 75 80 80 75 75 80 80 85 75 50 45 40 40 40 45
Temperature 36 36 37 37 36 37 37 37 37 37 37 38 35 33 32 31 30
Max/Min Temp 38 36 38 28
Wind Dir W W W W W W W W W W W W W W W W W
Wind (mph) 19 20 19 19 16 17 16 16 16 16 14 16 14 17 17 17 14
Wind Gust (mph) 57 59 52 51 46 50 48 48 48 46 40 41 39 47 48 49 43
Precip Prob (%) 5 30 20 40 50 30 30 30 30 30 10 10 5 5 10 10 5
Precip Type Z Z S S S S S S S S
6 Hour QPF 0.02 0.05 0.02 0.02 0.03 0.01 0.00 0.00
12 Hour QPF 0.07 0.04 0.04 0.00
Low End QPF 0.00 0.01 0.00 0.00
High End QPF 0.10 0.11 0.05 0.00
6 Hour Snow 0.0 0.1 0.1 0.0 0.0 0.0 0.0 0.0
12 Hour Snow 0.1 0.1 0.0 0.0
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.4 0.6 0.2 0.0
Snow Level (kft) 7.2 7.5 7.8 7.9 7.8 7.7 7.6 7.6 7.6 7.6 7.5 7.3 7.1 6.9 6.4 6.1 5.7
Snow Density (%) 20 20 20 20 20 20 16 16 16 16 16 16 20 20 20 20 20
...Beaverhead/Tendoy Mountains...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover SC SC BK OV OV OV OV OV OV OV BK SC SC SC SC SC SC
Cloud Cover (%) 40 45 55 70 75 80 75 80 80 75 60 45 45 40 35 40 40
Temperature 34 34 38 39 37 36 37 37 37 36 37 38 34 31 30 29 28
Max/Min Temp 39 36 38 27
Wind Dir W W W W W W W W W SW SW SW SW SW SW SW SW
Wind (mph) 14 16 14 14 12 13 13 13 12 11 11 12 11 11 11 11 10
Wind Gust (mph) 35 37 34 33 29 32 33 33 32
Precip Prob (%) 0 5 10 20 20 10 10 10 10 10 5 5 0 0 5 5 0
Precip Type Z R S S S S S S S
6 Hour QPF 0.01 0.03 0.01 0.01 0.03 0.00 0.00 0.00
12 Hour QPF 0.04 0.02 0.03 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.04 0.08 0.04 0.00
6 Hour Snow 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
12 Hour Snow 0.0 0.0 0.0 0.0
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.1 0.2 0.1 0.0
Snow Level (kft) 7.1 7.1 7.7 8.1 8.1 8.0 7.9 7.9 7.8 7.7 7.7 7.5 7.2 6.9 6.6 6.2 5.9
Snow Density (%) 25 25 20 20 20 20 20 20 20 20 20 20 25 25 25 25 25
...Absoraka-Beartooth/Cooke City Mountains...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover BK BK OV OV OV OV OV OV OV OV OV OV OV BK BK BK BK
Cloud Cover (%) 55 70 90 95 95 95 90 90 90 90 85 80 75 70 65 70 65
Temperature 30 29 31 31 30 30 30 30 30 30 30 31 28 27 27 26 24
Max/Min Temp 31 30 31 23
Wind Dir SW SW W W W W W W W SW SW W SW SW SW SW W
Wind (mph) 20 20 18 19 14 13 13 12 12 13 14 17 17 18 18 16 13
Wind Gust (mph) 52 54 49 43 35 33 32 32 32 33 34 36 35 41 43 42 36
Precip Prob (%) 5 5 20 50 80 80 70 90 80 80 50 50 20 20 20 20 10
Precip Type
6 Hour QPF 0.01 0.22 0.27 0.25 0.19 0.04 0.01 0.01
12 Hour QPF 0.23 0.52 0.23 0.02
Low End QPF 0.01 0.13 0.00 0.00
High End QPF 0.25 0.58 0.24 0.09
6 Hour Snow 0.1 1.3 2.8 2.7 1.7 0.4 0.0 0.0
12 Hour Snow 1.4 5.5 2.1 0.0
Low End Snow 0.1 1.5 0.0 0.0
High End Snow 2.5 6.4 2.6 1.0
Snow Level (kft) 7.2 6.9 7.3 7.6 7.7 7.5 7.4 7.3 7.1 7.0 7.2 7.2 7.1 6.9 6.6 6.1 5.5
Snow Density (%) 10 10 10 10 9 9 9 9 9 9 10 10 10 10 10 10 9
...Absoraka Mountains Above 6000ft Northeast Facing...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover SC BK OV OV OV OV OV OV OV OV OV BK BK BK BK BK OV
Cloud Cover (%) 50 55 80 85 90 95 95 90 90 90 80 70 65 60 60 65 70
Temperature 37 37 38 37 34 33 31 32 31 30 32 33 30 30 31 32 30
Max/Min Temp 38 29 33 26
Wind Dir SW W W W W W W W W W W W W SW SW SW W
Wind (mph) 31 29 26 23 18 14 11 11 12 12 13 17 18 23 24 23 20
Wind Gust (mph) 79 72 65 56 44 41 37 40 42 40 40 44 47 55 59 59 55
Precip Prob (%) 5 10 20 40 70 90 80 80 90 90 50 50 20 20 20 20 20
Precip Type
6 Hour QPF 0.01 0.13 0.18 0.12 0.14 0.04 0.00 0.00
12 Hour QPF 0.14 0.30 0.18 0.00
Low End QPF 0.01 0.08 0.00 0.00
High End QPF 0.17 0.42 0.18 0.06
6 Hour Snow 0.0 0.5 1.2 1.0 0.9 0.2 0.0 0.0
12 Hour Snow 0.5 2.2 1.1 0.0
Low End Snow 0.0 0.7 0.0 0.0
High End Snow 1.3 4.2 1.7 0.5
Snow Level (kft) 7.3 7.3 7.6 7.8 7.6 6.9 6.2 6.1 5.7 5.5 5.6 5.6 5.8 5.9 5.7 5.3 4.8
Snow Density (%) 16 16 14 14 12 12 10 10 10 10 11 11 12 12 14 14 11
...Absoraka Mountains Above 6000ft West Facing...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover BK BK OV OV OV OV OV OV OV OV OV OV BK BK BK BK BK
Cloud Cover (%) 65 65 80 90 90 90 90 90 90 90 85 75 70 65 65 70 70
Temperature 34 33 35 36 34 34 34 34 34 33 34 35 32 30 30 29 28
Max/Min Temp 36 33 35 26
Wind Dir SW SW SW W W W W W SW SW SW SW SW SW SW SW SW
Wind (mph) 18 18 17 16 13 13 12 12 12 12 12 14 14 16 16 14 12
Wind Gust (mph) 75 70 58 49 48 51 51 50 48 46 42 44 48 57 58 56 54
Precip Prob (%) 5 5 10 30 60 60 60 70 60 60 30 30 10 10 10 10 10
Precip Type S S S R S S S S S
6 Hour QPF 0.00 0.08 0.11 0.12 0.10 0.02 0.00 0.00
12 Hour QPF 0.08 0.23 0.12 0.00
Low End QPF 0.00 0.05 0.00 0.00
High End QPF 0.11 0.33 0.12 0.04
6 Hour Snow 0.0 0.3 0.8 0.9 0.6 0.1 0.0 0.0
12 Hour Snow 0.3 1.7 0.7 0.0
Low End Snow 0.0 0.4 0.0 0.0
High End Snow 0.9 2.9 1.0 0.3
Snow Level (kft) 7.2 7.0 7.3 7.6 7.6 7.6 7.4 7.3 7.2 7.1 7.3 7.3 7.1 6.9 6.5 6.1 5.6
Snow Density (%) 16 16 14 14 12 12 12 12 12 12 12 12 14 14 14 14 12
...Crazy Mountains...
Date Thursday 12/11/25 Friday 12/12/25
Time (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5a 8a 11a 2p 5p 8p 11p 2a 5a 8a 11a 2p 5p 8p 11p 2a 5a
Cloud Cover BK OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 65 80 95 100 90 90 95 95 95 100 90 85 75 70 70 80 85
Temperature 41 40 40 39 36 34 33 32 31 30 31 33 33 33 35 35 33
Max/Min Temp 40 28 35 28
Wind Dir W W W W NW NW W W W W SW W W W W W W
Wind (mph) 40 37 32 27 19 16 12 10 9 9 9 13 14 19 23 23 20
Wind Gust (mph) 93 86 70 58 43 35 33 43 52 55 49
Precip Prob (%) 5 30 40 60 80 70 80 90 90 90 70 70 30 30 30 30 20
Precip Type S S S S S S S S S S S S S S S S
6 Hour QPF 0.06 0.35 0.37 0.37 0.34 0.19 0.02 0.02
12 Hour QPF 0.41 0.74 0.53 0.04
Low End QPF 0.02 0.28 0.01 0.00
High End QPF 0.42 0.82 0.55 0.12
6 Hour Snow 0.0 0.9 2.4 3.8 3.8 1.0 0.1 0.0
12 Hour Snow 0.9 6.2 4.8 0.1
Low End Snow 0.1 3.0 0.1 0.0
High End Snow 2.6 8.8 6.0 1.1
Snow Level (kft) 7.2 7.3 7.4 7.2 6.5 5.3 4.7 4.1 3.7 3.6 3.8 3.9 4.5 5.0 4.9 4.5 4.1
Snow Density (%) 25 25 16 16 12 12 8 8 8 8 10 10 14 14 16 16 12
$$
--- Precip Type Codes ---
CODE TYPE
T Thunderstorms
R Rain
S Snow
I Sleet
Z Freezing Rain