Avalanche Weather Guidance
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
479
FWUS45 KTFX 032201
AVGTFX
Avalanche Weather Guidance
National Weather Service Great Falls MT
300 PM MST Wed Dec 3 2025
...Glacier National Park/Marias Pass...
Date Thursday 12/04/25 Friday 12/05/25
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 BK BK BK OV OV BK OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 60 60 55 55 60 85 75 65 75 80 75 75 75 90 90 90 90
Temperature 20 20 20 21 22 23 24 24 24 24 24 23 21 22 24 24 21
Min/Max Temp 19 25 21 25
Wind Dir SW W W W SW SW SW W W W W W W W SW SW SW
Wind (mph) 23 26 25 25 25 24 23 21 19 18 16 13 12 12 14 14 13
Wind Gust (mph) 48 59 58 58 58 59 55 49 44 43 36 33 29
Precip Prob (%) 5 10 20 10 10 40 40 30 30 30 40 40 50 50 90 90 80
Precip Type S S S S S S S S S S S S S S S S
6 Hour QPF 0.01 0.01 0.03 0.03 0.04 0.02 0.06 0.11
12 Hour QPF 0.02 0.06 0.06 0.17
Low End QPF 0.00 0.00 0.01 0.04
High End QPF 0.05 0.10 0.17 0.29
6 Hour Snow 0.1 0.1 0.4 0.4 0.5 0.3 0.9 1.6
12 Hour Snow 0.2 0.8 0.8 2.5
Low End Snow 0.0 0.0 0.1 0.5
High End Snow 0.6 1.4 2.5 3.7
Snow Level (kft) 2.2 2.3 2.4 2.3 2.3 2.5 2.8 3.2 3.3 3.3 3.4 3.2 2.7 2.5 2.4 2.8 2.9
Snow Density (%) 7 7 7 7 7 8 8 8 7 7 7 7 7 7 7 7 7
...Bob Marshall/Scapegoat Wilderness...
Date Thursday 12/04/25 Friday 12/05/25
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 BK BK BK OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 60 70 65 60 65 80 80 75 80 75 75 75 75 85 95 95 95
Temperature 20 19 19 20 21 22 25 26 24 24 24 24 23 23 26 27 24
Min/Max Temp 18 26 22 27
Wind Dir W W W W W W W W W W W W W W SW SW SW
Wind (mph) 14 19 20 19 19 19 18 17 16 16 14 12 11 10 11 12 11
Wind Gust (mph) 42 54 54 52 50 54 51 48 42 43 39 33
Precip Prob (%) 5 10 20 20 20 40 60 50 60 60 50 50 60 60 90 90 90
Precip Type S S S S S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.02 0.04 0.05 0.04 0.07 0.13
12 Hour QPF 0.00 0.06 0.09 0.20
Low End QPF 0.00 0.00 0.01 0.04
High End QPF 0.02 0.10 0.15 0.37
6 Hour Snow 0.0 0.0 0.2 0.5 0.7 0.5 1.0 1.8
12 Hour Snow 0.0 0.7 1.2 2.8
Low End Snow 0.0 0.0 0.1 0.5
High End Snow 0.3 1.3 2.1 4.4
Snow Level (kft) 2.3 2.3 2.4 2.4 2.3 2.5 3.2 3.7 3.6 3.6 3.6 3.5 3.2 3.1 3.3 3.7 3.7
Snow Density (%) 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
...Nevada Mountains...
Date Thursday 12/04/25 Friday 12/05/25
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 OV BK BK OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 60 60 80 65 65 85 85 85 85 85 80 85 85 90 90 90 95
Temperature 20 21 20 22 22 22 24 25 26 26 27 27 25 26 27 28 27
Min/Max Temp 20 27 25 29
Wind Dir W W W W W W W W W W W W W SW SW SW SW
Wind (mph) 13 16 18 17 16 16 16 16 14 14 13 11 10 10 10 12 12
Wind Gust (mph) 31 36 40 37 36 36 35 35 32 33
Precip Prob (%) 5 5 10 10 10 20 50 40 60 60 50 50 60 60 80 80 90
Precip Type S S S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.01 0.05 0.06 0.06 0.06 0.08
12 Hour QPF 0.00 0.06 0.12 0.14
Low End QPF 0.00 0.00 0.01 0.04
High End QPF 0.02 0.11 0.15 0.35
6 Hour Snow 0.0 0.0 0.1 0.6 0.8 0.7 0.7 1.1
12 Hour Snow 0.0 0.7 1.5 1.8
Low End Snow 0.0 0.0 0.2 0.4
High End Snow 0.3 1.5 2.0 3.6
Snow Level (kft) 2.4 2.3 2.3 2.3 2.2 2.4 3.0 3.7 3.7 3.7 3.8 3.7 3.4 3.4 3.6 4.1 4.0
Snow Density (%) 7 7 7 7 7 8 8 8 8 8 8 8 8 8 7 7 7
...Elkhorn/Boulder Mountains...
Date Thursday 12/04/25 Friday 12/05/25
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 OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 50 50 70 55 55 70 85 85 85 85 85 85 85 90 85 85 90
Temperature 20 17 17 18 18 18 24 26 25 24 24 24 23 24 27 28 26
Min/Max Temp 16 27 23 29
Wind Dir W W W W W W W W W W W W W W SW SW SW
Wind (mph) 8 10 11 11 11 10 11 11 10 11 11 11 10 9 10 10 11
Wind Gust (mph) 29
Precip Prob (%) 0 0 5 0 5 10 40 30 50 50 30 30 40 40 70 70 80
Precip Type S S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.00 0.01 0.07 0.10 0.04 0.07
12 Hour QPF 0.00 0.01 0.17 0.11
Low End QPF 0.00 0.00 0.01 0.04
High End QPF 0.02 0.12 0.23 0.34
6 Hour Snow 0.0 0.0 0.0 0.2 0.9 1.4 0.6 0.9
12 Hour Snow 0.0 0.2 2.3 1.5
Low End Snow 0.0 0.0 0.2 0.4
High End Snow 0.2 1.7 3.1 3.8
Snow Level (kft) 3.1 2.6 2.6 2.6 2.5 2.6 3.4 4.2 4.2 4.1 4.2 4.1 3.8 3.8 4.1 4.6 4.5
Snow Density (%) 7 7 6 6 7 7 7 7 7 7 7 7 7 7 7 7 7
...Big Belt Mountains...
Date Thursday 12/04/25 Friday 12/05/25
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 SC SC BK BK BK BK OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 50 45 70 60 60 65 90 85 80 80 80 80 80 85 85 85 90
Temperature 21 20 20 21 21 21 24 26 26 26 26 26 25 25 26 27 26
Min/Max Temp 19 27 24 28
Wind Dir SW SW SW SW SW SW SW SW SW SW SW SW W SW SW SW SW
Wind (mph) 11 13 13 13 14 14 16 14 12 12 12 11 10 9 10 11 12
Wind Gust (mph) 31 31 32 34 35 34 29 29
Precip Prob (%) 0 0 5 5 5 10 50 40 50 50 50 50 40 40 70 70 90
Precip Type S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.03 0.12 0.13 0.13 0.07 0.07
12 Hour QPF 0.00 0.15 0.26 0.14
Low End QPF 0.00 0.00 0.01 0.04
High End QPF 0.02 0.27 0.34 0.36
6 Hour Snow 0.0 0.0 0.4 1.7 1.7 1.6 0.9 1.0
12 Hour Snow 0.0 2.1 3.3 1.9
Low End Snow 0.0 0.1 0.2 0.4
High End Snow 0.3 3.5 4.4 3.7
Snow Level (kft) 2.7 2.4 2.3 2.3 2.2 2.2 2.9 3.5 3.8 3.8 3.7 3.7 3.3 3.2 3.4 3.8 3.8
Snow Density (%) 7 7 7 7 7 7 8 8 8 8 8 8 8 8 8 8 8
...Little Belt Mountains...
Date Thursday 12/04/25 Friday 12/05/25
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 BK BK BK BK OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 55 50 70 60 55 55 85 85 80 80 80 75 75 80 80 85 95
Temperature 22 20 19 21 21 21 26 27 26 25 25 24 22 23 27 27 25
Min/Max Temp 18 28 22 29
Wind Dir SW SW W W W W W W W W W W W W W W SW
Wind (mph) 13 17 18 18 17 18 18 18 16 14 14 13 12 10 10 11 11
Wind Gust (mph) 34 41 43 44 44 42 43 46 41 43 39 36 29
Precip Prob (%) 0 0 0 0 5 10 40 50 60 60 50 50 40 40 60 60 90
Precip Type S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.02 0.09 0.09 0.09 0.08 0.08
12 Hour QPF 0.00 0.11 0.18 0.16
Low End QPF 0.00 0.00 0.01 0.02
High End QPF 0.01 0.28 0.25 0.38
6 Hour Snow 0.0 0.0 0.2 1.3 1.2 1.3 1.1 1.2
12 Hour Snow 0.0 1.5 2.5 2.3
Low End Snow 0.0 0.1 0.2 0.2
High End Snow 0.2 3.9 3.5 4.2
Snow Level (kft) 2.7 2.4 2.5 2.6 2.5 2.4 3.2 3.7 3.8 3.8 3.7 3.7 3.3 3.1 3.3 3.5 3.6
Snow Density (%) 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
...Highwood Mountains...
Date Thursday 12/04/25 Friday 12/05/25
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 SC SC BK BK SC SC OV OV OV OV OV OV OV BK OV OV OV
Cloud Cover (%) 50 40 55 50 35 45 75 85 75 85 75 75 70 65 75 85 90
Temperature 23 23 23 25 25 24 28 29 29 29 28 27 25 25 27 27 24
Min/Max Temp 23 30 24 28
Wind Dir W W W W W W W W W W W W W W W SW SW
Wind (mph) 13 18 20 21 21 21 21 21 18 18 17 16 14 11 10 10 11
Wind Gust (mph)
Precip Prob (%) 0 0 0 0 0 5 20 30 50 50 50 50 40 40 60 60 90
Precip Type S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.03 0.07 0.07 0.13 0.08 0.08
12 Hour QPF 0.00 0.10 0.20 0.16
Low End QPF 0.00 0.00 0.01 0.01
High End QPF 0.01 0.27 0.25 0.37
6 Hour Snow 0.0 0.0 0.3 0.8 0.8 1.4 0.9 1.0
12 Hour Snow 0.0 1.1 2.2 1.9
Low End Snow 0.0 0.0 0.1 0.1
High End Snow 0.1 3.1 3.1 3.7
Snow Level (kft) 2.6 2.2 2.2 2.4 2.2 2.2 3.1 3.6 3.6 3.5 3.5 3.4 2.9 2.6 2.5 2.7 2.8
Snow Density (%) 8 8 7 7 8 9 10 10 10 10 9 9 9 9 9 8 8
...Snowy/Judith Mountains...
Date Thursday 12/04/25 Friday 12/05/25
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 SC SC OV BK BK SC BK OV OV OV OV OV OV BK OV OV OV
Cloud Cover (%) 45 45 70 55 50 45 65 90 85 80 80 75 70 65 75 85 90
Temperature 23 22 20 24 25 25 31 31 30 29 28 27 24 24 28 28 25
Min/Max Temp 19 32 22 30
Wind Dir W W W W W W W W W W W W W W W W S
Wind (mph) 9 12 14 18 18 17 16 18 18 17 18 18 16 11 8 8 8
Wind Gust (mph) 34 41 43 39 35 36 37 41 41 41 36
Precip Prob (%) 0 0 0 0 0 5 10 30 40 40 20 20 20 20 40 40 80
Precip Type S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.00 0.04 0.05 0.06 0.02 0.05
12 Hour QPF 0.00 0.04 0.11 0.07
Low End QPF 0.00 0.00 0.01 0.01
High End QPF 0.00 0.14 0.15 0.30
6 Hour Snow 0.0 0.0 0.0 0.4 0.6 0.8 0.3 0.7
12 Hour Snow 0.0 0.4 1.4 1.0
Low End Snow 0.0 0.0 0.1 0.1
High End Snow 0.0 1.6 2.0 2.8
Snow Level (kft) 2.7 2.4 2.3 2.5 2.5 2.5 3.3 3.8 3.8 3.7 3.6 3.4 2.9 2.7 2.7 2.9 2.8
Snow Density (%) 8 8 8 8 9 9 10 10 9 9 8 8 7 7 7 7 7
...Bears Paw Mountains...
Date Thursday 12/04/25 Friday 12/05/25
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 SC BK BK SC SC SC BK OV BK BK BK BK BK BK OV OV OV
Cloud Cover (%) 50 55 55 50 35 40 60 75 60 65 60 65 65 60 70 85 90
Temperature 20 19 18 21 23 22 28 29 28 27 26 24 21 21 25 25 20
Min/Max Temp 16 30 19 27
Wind Dir W W W W W W W W W W W W NW NW NW SW SE
Wind (mph) 8 12 16 18 19 18 17 17 14 14 14 14 14 11 6 6 6
Wind Gust (mph) 35
Precip Prob (%) 0 0 0 0 0 5 10 20 40 40 20 20 20 20 40 40 90
Precip Type S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.01 0.08 0.03 0.03 0.01 0.03
12 Hour QPF 0.00 0.09 0.06 0.04
Low End QPF 0.00 0.00 0.00 0.01
High End QPF 0.01 0.14 0.08 0.24
6 Hour Snow 0.0 0.0 0.1 1.0 0.3 0.4 0.1 0.4
12 Hour Snow 0.0 1.1 0.7 0.5
Low End Snow 0.0 0.0 0.0 0.0
High End Snow 0.1 1.7 1.0 2.8
Snow Level (kft) 1.5 1.7 1.6 1.7 1.7 1.7 2.2 2.9 3.1 2.9 2.7 2.7 2.1 1.5 1.0 1.3 1.5
Snow Density (%) 7 7 7 7 8 8 8 8 9 9 9 8 8 8 7 7 7
...Castle/Crazy Mountains...
Date Thursday 12/04/25 Friday 12/05/25
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 OV BK BK BK OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 55 60 70 65 65 60 85 85 85 85 80 80 80 80 85 85 90
Temperature 21 19 18 20 20 19 24 25 25 25 25 24 23 23 26 27 26
Min/Max Temp 18 26 23 28
Wind Dir SW SW SW W W SW W W W W W W W W SW SW SW
Wind (mph) 13 19 23 23 23 21 21 24 20 17 20 19 17 14 12 13 12
Wind Gust (mph) 39 55 59 58 62 61 59 59 54 58 56 55 44 34 29 32 31
Precip Prob (%) 0 0 0 0 5 10 30 50 50 50 40 40 40 40 50 50 80
Precip Type S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.00 0.13 0.13 0.09 0.04 0.07
12 Hour QPF 0.00 0.13 0.22 0.11
Low End QPF 0.00 0.01 0.01 0.03
High End QPF 0.01 0.27 0.27 0.35
6 Hour Snow 0.0 0.0 0.0 1.8 1.9 1.3 0.6 1.0
12 Hour Snow 0.0 1.8 3.2 1.6
Low End Snow 0.0 0.2 0.2 0.4
High End Snow 0.1 3.9 3.8 4.1
Snow Level (kft) 2.9 2.6 2.4 2.3 2.2 2.2 3.0 3.6 3.8 3.9 3.8 3.7 3.3 3.3 3.6 3.9 4.1
Snow Density (%) 7 7 6 6 7 7 7 7 7 7 7 7 7 7 7 7 7
...Bridger Range...
Date Thursday 12/04/25 Friday 12/05/25
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 SC BK BK BK BK BK OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 45 55 60 60 55 55 85 85 85 85 90 85 85 80 90 85 90
Temperature 20 19 18 19 19 19 23 25 25 25 25 25 24 24 26 27 26
Min/Max Temp 18 26 23 28
Wind Dir W W W W W W W W W SW W W W SW SW SW SW
Wind (mph) 8 11 13 14 14 14 14 16 14 12 14 13 12 10 9 10 10
Wind Gust (mph) 31 33 34 34 33 34 32 33 32 32
Precip Prob (%) 0 0 0 5 5 10 50 50 60 60 50 50 50 50 60 60 90
Precip Type S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.01 0.13 0.19 0.17 0.08 0.09
12 Hour QPF 0.00 0.14 0.36 0.17
Low End QPF 0.00 0.02 0.04 0.05
High End QPF 0.01 0.40 0.44 0.42
6 Hour Snow 0.0 0.0 0.1 1.8 2.6 2.3 1.1 1.2
12 Hour Snow 0.0 1.9 4.9 2.3
Low End Snow 0.0 0.3 0.5 0.6
High End Snow 0.2 5.7 6.1 4.6
Snow Level (kft) 3.0 2.8 2.4 2.3 2.2 2.2 2.9 3.6 3.9 4.0 4.0 4.0 3.5 3.5 3.9 4.2 4.4
Snow Density (%) 7 7 6 6 6 7 7 7 7 7 7 7 7 7 7 7 7
...Madison Range/Spanish Peaks...
Date Thursday 12/04/25 Friday 12/05/25
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 SC SC SC BK BK BK OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 30 35 40 65 70 60 80 90 90 95 90 85 85 85 85 85 90
Temperature 17 14 12 14 14 13 18 20 19 19 19 20 18 19 22 23 23
Min/Max Temp 12 21 17 24
Wind Dir SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind (mph) 8 10 12 12 12 12 12 13 12 12 12 11 10 11 11 12 13
Wind Gust (mph) 29 31 31 31 29 29 31
Precip Prob (%) 0 0 0 5 5 5 30 60 70 70 60 60 60 60 70 70 80
Precip Type S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.02 0.10 0.14 0.15 0.07 0.08
12 Hour QPF 0.00 0.12 0.29 0.15
Low End QPF 0.00 0.05 0.04 0.07
High End QPF 0.02 0.28 0.37 0.45
6 Hour Snow 0.0 0.0 0.3 1.6 2.2 2.3 1.0 1.2
12 Hour Snow 0.0 1.9 4.5 2.2
Low End Snow 0.0 0.8 0.6 0.9
High End Snow 0.4 4.4 5.7 6.0
Snow Level (kft) 3.4 3.0 2.7 2.7 2.7 2.6 3.4 3.9 3.8 3.8 4.0 4.1 3.8 3.9 4.3 4.6 4.8
Snow Density (%) 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6
...Gallatin Range/Hyalite Mountains...
Date Thursday 12/04/25 Friday 12/05/25
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 SC SC SC OV OV BK OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 35 45 45 75 70 60 80 90 95 95 90 90 85 80 85 90 95
Temperature 19 15 13 15 15 14 20 22 22 21 21 21 19 20 23 25 24
Min/Max Temp 13 23 19 26
Wind Dir SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind (mph) 9 12 14 14 13 13 13 13 14 12 14 13 12 11 11 12 12
Wind Gust (mph) 33 31 31 31 32
Precip Prob (%) 0 0 0 5 5 5 40 70 80 80 60 60 60 60 70 70 90
Precip Type S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.01 0.13 0.17 0.21 0.08 0.07
12 Hour QPF 0.00 0.14 0.38 0.15
Low End QPF 0.00 0.05 0.06 0.06
High End QPF 0.02 0.34 0.45 0.50
6 Hour Snow 0.0 0.0 0.2 1.9 2.6 3.1 1.2 1.1
12 Hour Snow 0.0 2.1 5.7 2.3
Low End Snow 0.0 0.8 0.9 0.8
High End Snow 0.3 5.1 6.8 6.1
Snow Level (kft) 3.4 3.0 2.6 2.8 2.7 2.6 3.6 4.3 4.2 4.1 4.1 4.2 3.8 3.9 4.4 4.6 4.8
Snow Density (%) 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6
...Lionhead Range...
Date Thursday 12/04/25 Friday 12/05/25
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 FW SC BK OV OV OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 10 30 60 75 90 85 85 90 95 95 90 90 95 90 95 95 95
Temperature 20 14 12 14 14 14 17 18 17 18 19 18 17 18 22 24 23
Min/Max Temp 11 20 16 25
Wind Dir SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind (mph) 6 9 10 10 10 11 12 13 12 12 12 10 9 10 9 11 12
Wind Gust (mph)
Precip Prob (%) 0 0 10 20 20 20 30 70 90 90 80 80 80 80 90 90 100
Precip Type S S S S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.04 0.09 0.15 0.14 0.06 0.15
12 Hour QPF 0.00 0.13 0.29 0.21
Low End QPF 0.00 0.06 0.03 0.09
High End QPF 0.03 0.24 0.34 0.30
6 Hour Snow 0.0 0.0 0.6 1.5 2.3 2.2 0.9 2.2
12 Hour Snow 0.0 2.1 4.5 3.1
Low End Snow 0.0 1.1 0.5 1.2
High End Snow 0.5 3.8 5.4 4.2
Snow Level (kft) 3.3 2.6 2.4 2.3 2.2 2.1 2.5 2.7 2.6 2.9 3.1 3.3 3.3 3.4 3.9 4.2 4.6
Snow Density (%) 6 6 5 5 5 5 6 6 6 6 6 6 6 6 6 6 6
...Tobacco Root Mountains...
Date Thursday 12/04/25 Friday 12/05/25
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 SC SC BK BK BK BK OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 40 45 70 65 60 60 90 90 90 90 85 80 80 90 85 80 90
Temperature 19 17 16 17 17 17 22 23 23 23 23 23 21 22 25 26 25
Min/Max Temp 16 24 21 26
Wind Dir W W W W W W SW SW SW SW SW SW W SW SW SW SW
Wind (mph) 9 12 14 14 14 14 14 14 13 14 14 13 13 13 14 14 13
Wind Gust (mph) 32 34 33 32 31
Precip Prob (%) 0 0 0 0 5 10 20 30 50 50 40 40 40 40 60 60 80
Precip Type S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.00 0.03 0.11 0.12 0.04 0.06
12 Hour QPF 0.00 0.03 0.23 0.10
Low End QPF 0.00 0.00 0.02 0.05
High End QPF 0.02 0.20 0.28 0.37
6 Hour Snow 0.0 0.0 0.0 0.5 1.6 1.7 0.5 0.9
12 Hour Snow 0.0 0.5 3.3 1.4
Low End Snow 0.0 0.0 0.3 0.6
High End Snow 0.2 2.9 4.1 4.5
Snow Level (kft) 3.4 3.1 2.9 2.9 2.8 2.8 3.4 4.0 4.2 4.3 4.3 4.4 3.9 4.0 4.4 4.8 4.9
Snow Density (%) 6 6 6 6 6 7 7 7 7 7 7 7 7 7 7 7 6
...Snowcrest/Gravelly/Ruby/Blacktail Ranges...
Date Thursday 12/04/25 Friday 12/05/25
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 FW SC SC BK BK BK OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 25 30 35 55 65 55 85 90 95 90 85 80 80 85 85 85 85
Temperature 20 16 14 15 15 15 20 23 21 21 22 21 20 21 24 27 25
Min/Max Temp 14 23 19 27
Wind Dir SW SW SW SW SW SW SW SW SW S SW SW SW SW SW SW SW
Wind (mph) 6 9 10 10 10 11 12 12 12 12 11 11 11 11 12 13 13
Wind Gust (mph)
Precip Prob (%) 0 0 0 0 5 5 20 30 50 50 30 30 40 40 60 60 70
Precip Type S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.00 0.04 0.08 0.08 0.02 0.05
12 Hour QPF 0.00 0.04 0.16 0.07
Low End QPF 0.00 0.02 0.03 0.04
High End QPF 0.01 0.17 0.21 0.22
6 Hour Snow 0.0 0.0 0.0 0.7 1.1 1.2 0.3 0.7
12 Hour Snow 0.0 0.7 2.3 1.0
Low End Snow 0.0 0.3 0.4 0.5
High End Snow 0.2 2.6 3.2 2.7
Snow Level (kft) 3.5 3.1 2.8 2.8 2.7 2.6 3.2 3.8 3.8 3.9 4.1 4.3 4.0 4.0 4.5 4.9 5.0
Snow Density (%) 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6
...Centennial Mountains...
Date Thursday 12/04/25 Friday 12/05/25
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 FW SC SC BK OV OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 20 35 45 65 75 70 80 85 90 90 85 80 85 85 90 85 90
Temperature 19 15 13 14 15 14 17 17 16 17 18 18 17 18 21 22 21
Min/Max Temp 13 19 16 24
Wind Dir SW SW SW SW SW S S S S S S SW SW SW SW SW S
Wind (mph) 8 8 8 8 9 9 11 11 10 10 9 8 9 9 10 11 11
Wind Gust (mph)
Precip Prob (%) 0 0 5 10 5 20 30 70 70 70 60 60 60 60 80 80 80
Precip Type S S S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.01 0.04 0.08 0.07 0.04 0.09
12 Hour QPF 0.00 0.05 0.15 0.13
Low End QPF 0.00 0.03 0.03 0.06
High End QPF 0.03 0.20 0.19 0.22
6 Hour Snow 0.0 0.0 0.1 0.6 1.2 1.1 0.7 1.4
12 Hour Snow 0.0 0.7 2.3 2.1
Low End Snow 0.0 0.5 0.4 0.8
High End Snow 0.5 3.2 3.0 3.0
Snow Level (kft) 3.3 2.8 2.7 2.5 2.4 2.3 2.6 2.9 2.7 2.9 3.1 3.4 3.5 3.4 3.9 4.4 4.6
Snow Density (%) 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6
...Anaconda/Highland Ranges...
Date Thursday 12/04/25 Friday 12/05/25
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 BK SC BK OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 50 60 65 50 60 70 85 85 90 90 85 85 90 90 90 85 90
Temperature 20 16 15 16 16 16 22 25 24 24 25 25 23 24 26 28 27
Min/Max Temp 15 26 23 29
Wind Dir W W W W W W W W W W W W W SW SW SW SW
Wind (mph) 5 6 6 6 6 8 9 9 8 8 8 8 8 8 9 11 11
Wind Gust (mph)
Precip Prob (%) 0 0 0 0 5 20 30 60 80 80 60 60 60 60 90 90 90
Precip Type S S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.01 0.09 0.11 0.14 0.07 0.15
12 Hour QPF 0.00 0.10 0.25 0.22
Low End QPF 0.00 0.03 0.02 0.10
High End QPF 0.01 0.26 0.33 0.54
6 Hour Snow 0.0 0.0 0.1 1.4 1.6 2.0 1.0 2.1
12 Hour Snow 0.0 1.5 3.6 3.1
Low End Snow 0.0 0.4 0.3 1.2
High End Snow 0.1 3.8 4.8 6.2
Snow Level (kft) 3.3 2.9 2.7 2.6 2.6 2.6 3.3 4.2 4.3 4.4 4.5 4.5 4.2 4.2 4.7 5.1 5.3
Snow Density (%) 6 6 6 6 6 7 7 7 7 7 7 7 7 7 7 7 6
...Pioneer Mountains...
Date Thursday 12/04/25 Friday 12/05/25
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 SC BK BK BK BK OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 45 60 65 55 60 70 85 80 85 85 80 85 85 90 85 85 90
Temperature 19 16 15 16 16 16 22 25 23 23 23 24 22 23 26 28 27
Min/Max Temp 15 25 22 29
Wind Dir W W W W W W W W W W W W W W W W SW
Wind (mph) 6 8 9 9 10 10 11 12 10 11 11 10 10 11 12 13 13
Wind Gust (mph) 25 29 31 31 33 31 32 31 34 34 33 32 31 32 32
Precip Prob (%) 0 0 0 0 0 10 20 30 60 60 40 40 40 40 80 80 80
Precip Type S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.00 0.03 0.07 0.09 0.04 0.10
12 Hour QPF 0.00 0.03 0.16 0.14
Low End QPF 0.00 0.01 0.02 0.07
High End QPF 0.01 0.19 0.21 0.38
6 Hour Snow 0.0 0.0 0.0 0.4 0.9 1.3 0.6 1.6
12 Hour Snow 0.0 0.4 2.2 2.2
Low End Snow 0.0 0.1 0.3 0.9
High End Snow 0.1 2.9 3.1 4.7
Snow Level (kft) 3.4 3.0 2.9 2.8 2.7 2.7 3.5 4.3 4.4 4.5 4.5 4.6 4.3 4.3 4.9 5.2 5.4
Snow Density (%) 6 6 6 6 6 7 7 7 7 7 7 7 6 6 6 6 6
...Beaverhead/Tendoy Mountains...
Date Thursday 12/04/25 Friday 12/05/25
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 SC SC SC SC BK BK OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 30 40 50 50 55 60 80 85 95 90 80 80 80 90 85 85 90
Temperature 20 16 15 16 16 16 22 24 23 22 23 23 21 22 26 28 26
Min/Max Temp 14 25 20 29
Wind Dir W W W W W SW SW W SW SW SW W W SW SW SW SW
Wind (mph) 5 5 6 6 6 8 9 10 9 9 9 10 10 10 11 12 12
Wind Gust (mph)
Precip Prob (%) 0 0 0 0 0 5 10 30 50 50 40 40 40 40 70 70 70
Precip Type S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.00 0.02 0.05 0.05 0.04 0.09
12 Hour QPF 0.00 0.02 0.10 0.13
Low End QPF 0.00 0.01 0.01 0.06
High End QPF 0.00 0.13 0.16 0.28
6 Hour Snow 0.0 0.0 0.0 0.3 0.7 0.7 0.6 1.4
12 Hour Snow 0.0 0.3 1.4 2.0
Low End Snow 0.0 0.1 0.2 0.7
High End Snow 0.1 1.9 2.4 3.4
Snow Level (kft) 3.5 3.2 3.0 3.0 2.8 2.8 3.4 4.1 4.3 4.4 4.6 4.7 4.4 4.5 5.0 5.3 5.5
Snow Density (%) 6 6 6 6 6 6 7 7 7 7 7 7 7 6 6 6 6
...Absoraka-Beartooth/Cooke City Mountains...
Date Thursday 12/04/25 Friday 12/05/25
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 SC BK BK OV OV OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 40 50 65 80 80 80 85 90 95 90 90 85 85 85 85 90 95
Temperature 12 9 8 10 11 10 14 17 15 14 14 15 14 14 18 20 19
Min/Max Temp 8 17 13 21
Wind Dir SW SW W SW W SW SW SW SW SW SW SW SW SW SW SW SW
Wind (mph) 9 11 13 13 13 14 14 16 14 13 13 12 11 11 11 13 12
Wind Gust (mph) 31 33 34 35 34 34 32 33 32 31 28 28
Precip Prob (%) 0 0 0 5 20 10 20 50 80 80 70 70 70 70 70 70 90
Precip Type
6 Hour QPF 0.00 0.00 0.00 0.09 0.12 0.10 0.05 0.10
12 Hour QPF 0.00 0.09 0.22 0.15
Low End QPF 0.00 0.05 0.05 0.06
High End QPF 0.02 0.24 0.24 0.47
6 Hour Snow 0.0 0.0 0.0 1.5 2.0 1.6 0.8 1.6
12 Hour Snow 0.0 1.5 3.6 2.4
Low End Snow 0.0 0.9 0.9 0.9
High End Snow 0.4 4.1 4.0 6.3
Snow Level (kft) 3.2 2.8 2.4 2.4 2.5 2.5 3.1 3.7 3.4 3.2 3.2 3.4 3.4 3.4 4.0 4.3 4.4
Snow Density (%) 6 6 5 5 5 5 6 6 6 6 6 6 6 6 6 6 6
...Absoraka Mountains Above 6000ft Northeast Facing...
Date Thursday 12/04/25 Friday 12/05/25
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 SC SC SC BK BK BK OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 30 30 40 65 65 65 75 85 90 90 80 80 75 80 80 80 95
Temperature 17 16 15 17 17 17 22 23 21 21 20 20 19 20 23 24 22
Min/Max Temp 15 23 18 25
Wind Dir W W W W W W W SW SW SW SW W W W W SW SW
Wind (mph) 13 18 21 23 23 21 21 20 20 19 20 19 17 16 14 16 16
Wind Gust (mph) 36 43 49 48 46 42 42 42 43 42 41 37 36 34 36 36
Precip Prob (%) 0 0 0 5 10 5 20 40 70 70 70 70 50 50 60 60 90
Precip Type
6 Hour QPF 0.00 0.00 0.00 0.03 0.05 0.06 0.05 0.07
12 Hour QPF 0.00 0.03 0.11 0.12
Low End QPF 0.00 0.02 0.02 0.02
High End QPF 0.01 0.16 0.15 0.34
6 Hour Snow 0.0 0.0 0.0 0.4 0.8 1.0 0.7 1.0
12 Hour Snow 0.0 0.4 1.8 1.7
Low End Snow 0.0 0.2 0.4 0.3
High End Snow 0.2 2.4 2.4 4.3
Snow Level (kft) 3.2 2.9 2.7 2.8 3.0 3.0 3.6 4.0 3.9 3.8 3.8 3.8 3.5 3.6 4.1 4.2 4.3
Snow Density (%) 6 6 6 6 6 7 7 7 7 7 7 7 7 6 6 6 6
...Absoraka Mountains Above 6000ft West Facing...
Date Thursday 12/04/25 Friday 12/05/25
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 SC SC BK OV OV OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 25 40 50 70 75 70 80 90 90 90 90 85 85 85 85 90 95
Temperature 18 13 12 13 14 13 19 21 19 19 19 19 17 18 22 24 23
Min/Max Temp 11 21 17 25
Wind Dir SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind (mph) 8 10 12 12 12 12 13 14 13 12 12 11 10 10 11 12 12
Wind Gust (mph) 25 35 43 46 47 47 41 41 43 44 42 39 34 32 31 34 37
Precip Prob (%) 0 0 0 5 10 10 30 60 80 80 60 60 60 60 70 70 90
Precip Type S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.01 0.07 0.11 0.11 0.05 0.08
12 Hour QPF 0.00 0.08 0.22 0.13
Low End QPF 0.00 0.04 0.05 0.06
High End QPF 0.02 0.24 0.27 0.42
6 Hour Snow 0.0 0.0 0.1 1.1 1.7 1.8 0.8 1.3
12 Hour Snow 0.0 1.2 3.5 2.1
Low End Snow 0.0 0.6 0.7 0.8
High End Snow 0.3 3.9 4.3 5.6
Snow Level (kft) 3.2 2.8 2.5 2.5 2.5 2.4 3.2 3.7 3.4 3.4 3.5 3.7 3.5 3.6 4.1 4.4 4.6
Snow Density (%) 6 6 5 5 5 6 6 6 6 6 6 6 6 6 6 6 6
...Crazy Mountains...
Date Thursday 12/04/25 Friday 12/05/25
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 SC BK OV BK BK OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 50 55 75 65 60 70 85 75 80 80 80 75 80 80 80 85 90
Temperature 20 19 19 20 20 20 23 24 24 24 24 24 22 23 26 27 25
Min/Max Temp 18 26 22 28
Wind Dir W W W W W W W W W W W W W W W W SW
Wind (mph) 16 25 29 32 32 28 27 27 25 21 26 25 23 17 13 14 13
Wind Gust (mph) 40 58 67 69 71 66 62 61 56 59 59 57 46 34 32 31
Precip Prob (%) 0 0 0 0 10 10 30 50 60 60 50 50 40 40 60 60 90
Precip Type S S S S S S S S S S S
6 Hour QPF 0.00 0.00 0.01 0.13 0.16 0.10 0.04 0.09
12 Hour QPF 0.00 0.14 0.26 0.13
Low End QPF 0.00 0.01 0.01 0.02
High End QPF 0.01 0.28 0.28 0.34
6 Hour Snow 0.0 0.0 0.1 1.8 2.3 1.5 0.6 1.3
12 Hour Snow 0.0 1.9 3.8 1.9
Low End Snow 0.0 0.1 0.2 0.3
High End Snow 0.1 4.1 4.0 4.2
Snow Level (kft) 3.0 3.0 2.7 2.6 2.5 2.6 3.2 3.7 3.9 4.0 4.0 3.9 3.5 3.4 3.8 4.0 4.2
Snow Density (%) 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
$$
--- Precip Type Codes ---
CODE TYPE
T Thunderstorms
R Rain
S Snow
I Sleet
Z Freezing Rain