Avalanche Weather Guidance
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
645
FWUS45 KTFX 072201
AVGTFX
Avalanche Weather Guidance
National Weather Service Great Falls MT
400 PM MDT Mon Sep 7 2026
...Glacier National Park/Marias Pass...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover OV OV OV OV OV OV OV OV OV SC SC SC SC SC FW FW FW
Cloud Cover (%) 100 100 95 90 90 95 95 85 75 45 45 35 50 25 10 10 15
Temperature 44 43 43 43 42 41 43 46 47 43 43 42 41 44 51 55 54
Min/Max Temp 40 47 41 55
Wind Dir W W W W W W W W W SW SW SW SW SW SW W SW
Wind (mph) 17 20 18 16 13 11 11 12 13 16 16 17 18 18 21 23 23
Wind Gust (mph) 43 47 43 36 32 31 36 36 40 42 40 46 44 48
Precip Prob (%) 100 80 80 70 60 70 40 20 5 5 0 0 0 0 0 0 0
Precip Type R R R R R R R R
6 Hour QPF 0.45 0.11 0.09 0.02 0.00 0.00 0.00 0.00
12 Hour QPF 0.56 0.11 0.00 0.00
Low End QPF 0.10 0.00 0.00 0.00
High End QPF 0.60 0.15 0.00 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 0.0 0.0 0.0
Snow Level (kft) 9.1 9.3 9.4 9.1 8.9 8.8 8.9 9.1 9.3 9.3 9.3 9.1 8.8 8.9 9.1 9.8 10.2
Snow Density (%) 50 100 100 100 50 50 50 100 100 0 0 0 0 0 0 0 0
...Bob Marshall/Scapegoat Wilderness...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover OV OV BK BK BK OV OV OV OV SC FW FW SC FW CL CL FW
Cloud Cover (%) 85 80 65 65 70 80 85 85 80 35 20 15 35 10 5 5 10
Temperature 45 43 42 41 40 40 42 46 48 42 40 39 38 42 54 59 57
Min/Max Temp 38 49 37 60
Wind Dir W W W W W W W W W W W W W W W W W
Wind (mph) 20 23 19 14 11 10 8 9 9 9 9 9 10 11 14 16 16
Wind Gust (mph) 52 62 55 44 35 27 27 31 29 32 34 37 37 40 43
Precip Prob (%) 50 60 40 30 50 70 50 20 0 0 0 0 0 0 0 0 0
Precip Type R R R R R R R R
6 Hour QPF 0.06 0.03 0.09 0.01 0.00 0.00 0.00 0.00
12 Hour QPF 0.09 0.10 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.15 0.14 0.00 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 0.0 0.0 0.0
Snow Level (kft) 8.9 8.9 8.9 8.8 8.6 8.5 8.7 9.1 9.3 9.2 9.1 8.8 8.6 8.5 8.8 9.5 9.7
Snow Density (%) 50 50 50 50 50 50 50 50 100 0 0 0 0 0 0 0 0
...Nevada Mountains...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover BK SC SC SC SC SC BK OV BK SC FW FW FW CL CL CL CL
Cloud Cover (%) 55 45 40 35 40 45 50 70 70 30 15 15 20 5 0 5 5
Temperature 49 46 44 43 41 42 46 50 51 45 43 41 40 43 56 60 62
Min/Max Temp 40 52 39 63
Wind Dir W W W W W W W W W W W SW SW SW W W W
Wind (mph) 19 20 19 14 12 11 12 11 9 8 8 9 9 9 12 14 13
Wind Gust (mph) 39 42 44 37 29 31
Precip Prob (%) 5 5 5 5 10 20 30 10 0 0 0 0 0 0 0 0 0
Precip Type R R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.07 0.00 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 0.0 0.0 0.0
Snow Level (kft) 8.7 8.7 8.6 8.4 8.1 8.1 8.4 9.0 9.2 9.2 9.1 8.8 8.6 8.4 8.7 9.2 9.5
Snow Density (%) 100 100 100 100 100 50 100 100 0 0 0 0 0 0 0 0 0
...Elkhorn/Boulder Mountains...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover FW FW FW FW FW FW SC BK BK SC FW FW FW CL CL CL CL
Cloud Cover (%) 20 15 10 10 20 20 40 50 55 30 15 15 15 0 0 5 5
Temperature 51 45 41 39 37 41 49 51 52 44 40 39 37 43 57 63 64
Min/Max Temp 36 54 37 65
Wind Dir W W W W W W W NW NW W W SW SW SW W W W
Wind (mph) 18 14 12 10 8 8 10 12 9 5 5 6 6 6 9 11 11
Wind Gust (mph) 39 34 32 27
Precip Prob (%) 0 0 0 0 0 0 5 5 0 0 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.01 0.00 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 0.0 0.0 0.0
Snow Level (kft) 9.0 8.6 8.3 8.0 7.9 7.9 8.6 9.2 9.5 9.4 9.2 9.0 8.8 8.6 9.1 10.0 10.4
Snow Density (%) 50 50 50 50 50 50 50 100 100 0 0 0 0 0 0 0 0
...Big Belt Mountains...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover SC SC FW FW FW SC SC BK OV SC FW FW FW CL CL CL CL
Cloud Cover (%) 35 30 25 25 20 35 40 65 70 35 20 20 20 0 0 0 0
Temperature 53 49 46 44 42 44 49 52 53 47 45 43 42 46 58 65 64
Min/Max Temp 41 54 41 66
Wind Dir W W W W SW W W W W W SW SW S SW SW W W
Wind (mph) 21 19 18 13 10 10 11 11 9 6 6 8 8 9 12 13 12
Wind Gust (mph) 40 44 46 41 29 29 29 26 27 29
Precip Prob (%) 5 5 5 5 5 10 30 10 0 0 0 0 0 0 0 0 0
Precip Type R R R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.01 0.07 0.00 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 0.0 0.0 0.0
Snow Level (kft) 8.9 8.7 8.7 8.5 8.2 8.1 8.5 9.0 9.3 9.2 9.1 9.0 8.8 8.6 8.8 9.4 9.9
Snow Density (%) 100 100 100 100 100 100 100 100 0 0 0 0 0 0 0 0 0
...Little Belt Mountains...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover SC SC SC SC SC BK BK OV OV SC FW FW FW CL CL CL CL
Cloud Cover (%) 35 35 35 40 35 55 55 75 80 35 20 20 25 0 0 0 0
Temperature 52 47 44 42 41 43 48 51 51 45 43 41 41 46 58 65 64
Min/Max Temp 40 53 40 65
Wind Dir W W W W W W W W W W SW SW SW SW W W W
Wind (mph) 24 25 23 18 13 13 14 14 11 10 8 9 10 11 14 17 16
Wind Gust (mph) 49 52 50 44 37 33 35 37 34 27 27 28 33 36 35
Precip Prob (%) 5 5 10 5 5 5 40 20 5 0 0 0 0 0 0 0 0
Precip Type R R
6 Hour QPF 0.00 0.00 0.00 0.02 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.02 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.01 0.11 0.00 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 0.0 0.0 0.0
Snow Level (kft) 8.9 8.7 8.9 8.8 8.7 8.6 8.8 9.2 9.2 9.1 8.9 8.8 8.7 8.6 8.8 9.4 9.6
Snow Density (%) 100 100 100 100 100 50 100 100 100 0 0 0 0 0 0 0 0
...Highwood Mountains...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover BK BK BK BK BK OV OV OV OV SC FW FW SC CL CL CL CL
Cloud Cover (%) 65 60 65 55 65 80 85 95 100 40 25 20 30 0 0 0 5
Temperature 54 51 49 48 48 47 47 48 50 48 47 46 46 51 60 65 65
Min/Max Temp 46 52 45 66
Wind Dir W W W W W W W W W W SW SW SW SW W W W
Wind (mph) 31 32 32 29 26 20 19 17 13 13 12 12 12 12 18 18 17
Wind Gust (mph) 48 50 51 49 46
Precip Prob (%) 10 20 40 20 10 30 60 60 10 0 0 0 0 0 0 0 0
Precip Type R R R R R R
6 Hour QPF 0.01 0.12 0.04 0.13 0.01 0.00 0.00 0.00
12 Hour QPF 0.13 0.17 0.01 0.00
Low End QPF 0.00 0.01 0.00 0.00
High End QPF 0.14 0.25 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 0.0 0.0 0.0
Snow Level (kft) 8.9 9.0 9.3 9.4 9.3 8.9 8.9 9.1 9.3 9.3 9.0 8.8 8.7 8.5 8.6 9.2 9.6
Snow Density (%) 0 0 100 0 100 100 100 100 0 0 0 0 0 0 0 0 0
...Snowy/Judith Mountains...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover FW FW FW SC SC SC SC BK BK OV FW SC SC CL CL CL CL
Cloud Cover (%) 25 15 20 30 45 50 50 50 55 75 25 40 35 5 0 5 5
Temperature 58 51 48 47 46 48 55 56 53 49 47 46 44 50 62 69 69
Min/Max Temp 44 59 42 71
Wind Dir W W W W W W W NW NW W W W SW SW W W W
Wind (mph) 21 21 24 21 19 17 18 18 17 12 9 8 8 6 9 11 11
Wind Gust (mph) 50 55 57 56 50 42 39 39 40 36 32 26 29 28
Precip Prob (%) 0 0 5 0 0 5 5 20 20 0 0 0 0 0 0 0 0
Precip Type R R
6 Hour QPF 0.00 0.00 0.00 0.02 0.01 0.00 0.00 0.00
12 Hour QPF 0.00 0.02 0.01 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.10 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 0.0 0.0 0.0
Snow Level (kft) 9.0 8.8 9.0 9.2 9.1 8.9 9.0 9.2 9.3 9.2 9.1 8.7 8.7 8.6 8.9 9.7 10.2
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Bears Paw Mountains...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover OV OV OV OV OV OV OV OV OV OV SC BK SC CL CL CL FW
Cloud Cover (%) 70 95 90 85 80 95 95 95 100 80 30 65 40 5 0 5 5
Temperature 54 48 47 46 45 47 49 50 50 46 45 44 43 50 59 65 63
Min/Max Temp 42 52 41 65
Wind Dir W W W W W W W W NW W W W W SW W W W
Wind (mph) 26 31 31 29 26 19 17 16 13 11 9 8 9 9 11 12 10
Wind Gust (mph) 47 50 50 48 46 36 28
Precip Prob (%) 40 80 90 60 40 50 80 90 50 0 0 0 0 0 0 0 0
Precip Type R R R R R R R R R
6 Hour QPF 0.22 0.19 0.12 0.29 0.03 0.00 0.00 0.00
12 Hour QPF 0.41 0.41 0.03 0.00
Low End QPF 0.01 0.02 0.00 0.00
High End QPF 0.52 0.54 0.03 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 0.0 0.0 0.0
Snow Level (kft) 9.0 9.6 9.8 9.8 9.7 9.6 9.2 9.4 9.3 9.3 9.0 8.9 9.0 8.8 8.8 9.1 9.4
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Castle/Crazy Mountains...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover FW FW FW FW FW FW FW SC SC SC SC FW FW CL CL CL CL
Cloud Cover (%) 20 15 15 25 15 5 10 40 50 45 25 20 20 0 0 0 5
Temperature 54 48 45 43 41 44 51 54 53 47 44 42 40 45 58 65 65
Min/Max Temp 40 55 40 66
Wind Dir W W W W W W W W W W SW SW SW SW W W W
Wind (mph) 27 25 24 20 16 16 19 20 16 9 8 9 9 10 18 18 18
Wind Gust (mph) 61 61 57 52 44 41 43 46 42 27 26 29 39 42 42
Precip Prob (%) 0 0 0 0 0 0 5 5 10 0 0 0 0 0 0 0 0
Precip Type R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.02 0.00 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 0.0 0.0 0.0
Snow Level (kft) 9.1 8.8 8.5 8.4 8.1 8.0 8.5 9.0 9.4 9.2 9.1 8.9 8.8 8.7 9.0 9.5 10.3
Snow Density (%) 100 100 100 100 50 50 100 100 100 0 0 0 0 0 0 0 0
...Bridger Range...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover FW FW FW FW FW FW FW SC SC SC FW FW SC CL CL CL CL
Cloud Cover (%) 15 10 15 15 10 5 10 40 40 35 25 15 25 0 0 0 5
Temperature 55 49 45 42 39 43 51 56 54 46 43 41 39 45 58 66 66
Min/Max Temp 38 56 39 67
Wind Dir W W W W W W W W NW W SW SW SW SW W W W
Wind (mph) 23 17 12 9 6 6 12 14 10 3 3 3 4 4 10 12 13
Wind Gust (mph) 44 41 29 32 31
Precip Prob (%) 0 0 0 0 0 0 0 5 10 0 0 0 0 0 0 0 0
Precip Type R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.01 0.00 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 0.0 0.0 0.0
Snow Level (kft) 9.2 8.8 8.5 8.2 8.0 7.9 8.4 9.1 9.6 9.5 9.3 9.2 8.9 8.9 9.1 9.5 10.4
Snow Density (%) 0 100 100 50 50 50 100 0 0 0 0 0 0 0 0 0 0
...Madison Range/Spanish Peaks...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover SC SC FW FW FW FW FW SC SC FW FW FW FW FW CL CL CL
Cloud Cover (%) 35 30 15 15 15 10 20 25 40 20 20 20 20 5 0 0 0
Temperature 51 44 41 37 35 38 48 53 52 43 40 38 37 41 56 62 61
Min/Max Temp 34 54 36 63
Wind Dir SW W W SW SW SW W W NW W SW S S S SW W W
Wind (mph) 17 10 6 4 4 5 10 12 8 3 3 4 5 6 9 11 11
Wind Gust (mph) 37 28 31 27 29 28
Precip Prob (%) 0 0 0 0 0 0 0 10 5 0 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.02 0.00 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 0.0 0.0 0.0
Snow Level (kft) 9.6 9.3 9.0 8.7 8.4 8.5 9.1 9.5 9.8 9.8 9.7 9.6 9.4 9.2 9.9 10.7 10.8
Snow Density (%) 100 50 50 50 33 33 50 100 100 100 100 0 0 0 0 0 0
...Gallatin Range/Hyalite Mountains...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover SC FW FW FW FW FW FW SC SC FW FW FW FW CL CL CL CL
Cloud Cover (%) 30 25 20 15 10 10 20 30 45 20 15 20 25 5 0 5 0
Temperature 53 46 42 38 36 40 50 55 53 44 40 38 37 43 58 64 63
Min/Max Temp 35 55 36 65
Wind Dir W W W SW SW W W W NW W SW SW SW SW W W W
Wind (mph) 17 10 8 5 5 5 10 13 9 4 4 5 6 6 9 11 11
Wind Gust (mph) 36 26
Precip Prob (%) 0 0 0 0 0 0 5 5 10 0 0 0 0 0 0 0 0
Precip Type S
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.03 0.00 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 0.0 0.0 0.0
Snow Level (kft) 9.5 9.3 8.9 8.6 8.3 8.4 9.1 9.5 9.8 9.8 9.7 9.5 9.3 9.1 10.0 10.4 10.6
Snow Density (%) 100 50 50 50 33 33 50 100 100 100 100 0 0 0 0 0 0
...Lionhead Range...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover SC SC FW FW FW CL FW FW SC FW FW FW SC FW CL CL CL
Cloud Cover (%) 25 45 20 15 10 5 15 20 40 15 15 15 30 10 5 0 0
Temperature 52 44 41 37 33 39 52 57 56 44 41 37 35 41 57 63 61
Min/Max Temp 32 58 34 64
Wind Dir SW SW SW S S SW SW W W SW E SE SE S SW SW SW
Wind (mph) 16 13 8 3 3 4 10 10 5 2 1 1 1 2 8 10 9
Wind Gust (mph) 33
Precip Prob (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.01 0.00 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 0.0 0.0 0.0
Snow Level (kft) 9.5 9.2 8.8 8.6 8.0 8.2 8.9 9.4 10.0 9.9 9.8 9.6 9.4 9.3 9.8 10.6 10.9
Snow Density (%) 0 0 100 100 100 100 100 0 0 0 0 0 0 0 0 0 0
...Tobacco Root Mountains...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover FW FW FW FW FW FW SC SC SC SC FW FW FW CL CL CL CL
Cloud Cover (%) 10 20 15 15 20 10 25 35 30 25 15 20 20 5 0 5 0
Temperature 51 44 40 38 36 40 48 52 53 44 41 39 37 43 54 61 62
Min/Max Temp 36 54 37 63
Wind Dir W W W W W W W W NW W SW SW SW SW SW W W
Wind (mph) 19 11 10 8 6 6 10 12 8 4 4 6 6 8 11 12 12
Wind Gust (mph) 39 28
Precip Prob (%) 0 0 0 0 0 0 0 20 0 0 0 0 0 0 0 0 0
Precip Type R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.01 0.00 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 0.0 0.0 0.0
Snow Level (kft) 9.3 9.0 8.6 8.3 8.0 8.1 8.7 9.2 9.8 9.8 9.6 9.4 9.2 8.9 9.4 10.1 10.8
Snow Density (%) 50 50 50 50 33 33 33 50 100 100 100 0 0 0 0 0 0
...Snowcrest/Gravelly/Ruby/Blacktail Ranges...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover FW FW FW FW FW FW FW FW SC FW FW FW FW FW CL CL CL
Cloud Cover (%) 20 20 20 15 20 10 20 15 30 20 20 15 15 5 5 0 5
Temperature 52 44 40 37 35 40 51 57 55 45 42 39 37 43 58 66 64
Min/Max Temp 35 57 37 66
Wind Dir W NW W W SW SW W W NW NW SW S S S SW W W
Wind (mph) 18 9 5 4 3 4 10 13 10 4 4 4 5 5 8 11 13
Wind Gust (mph)
Precip Prob (%) 0 0 0 0 0 0 0 10 0 0 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.01 0.00 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 0.0 0.0 0.0
Snow Level (kft) 9.5 9.3 9.0 8.7 8.4 8.4 9.0 9.5 9.9 9.9 9.9 9.7 9.4 9.1 9.8 10.6 10.8
Snow Density (%) 100 100 100 50 50 50 100 0 0 0 0 0 0 0 0 0 0
...Centennial Mountains...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover SC SC FW FW FW CL FW FW SC FW FW FW FW FW CL CL CL
Cloud Cover (%) 40 35 15 15 10 5 10 25 45 20 15 15 25 10 5 0 0
Temperature 52 45 42 38 36 39 50 56 55 46 43 40 37 41 56 62 61
Min/Max Temp 35 57 37 63
Wind Dir SW SW NW W SW SW W W W NW N N E SE SW SW SW
Wind (mph) 17 11 4 3 3 3 9 12 9 4 4 4 4 4 9 10 11
Wind Gust (mph)
Precip Prob (%) 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.02 0.00 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 0.0 0.0 0.0
Snow Level (kft) 9.6 9.4 9.2 9.0 8.6 8.5 9.1 9.6 10.0 9.9 9.8 9.7 9.4 9.3 9.8 10.7 11.1
Snow Density (%) 0 100 100 100 50 50 100 0 0 0 0 0 0 0 0 0 0
...Anaconda/Highland Ranges...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover SC FW FW FW FW SC BK SC SC FW FW FW FW CL CL CL CL
Cloud Cover (%) 30 20 25 25 20 30 50 45 25 15 10 10 15 0 0 5 0
Temperature 49 44 41 40 40 43 50 53 52 44 41 39 38 42 56 63 63
Min/Max Temp 39 53 37 64
Wind Dir W NW W W W W W W NW NW W SW SW SW SW W W
Wind (mph) 13 8 5 4 3 3 8 9 6 3 3 3 3 3 6 10 9
Wind Gust (mph) 31
Precip Prob (%) 5 0 0 0 5 0 0 5 0 0 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.01 0.01 0.00 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 0.0 0.0 0.0
Snow Level (kft) 9.1 8.7 8.5 8.2 8.0 8.1 8.8 9.3 9.8 9.7 9.5 9.3 9.0 8.6 9.2 10.3 10.6
Snow Density (%) 50 50 50 33 33 33 50 100 100 0 0 0 0 0 0 0 0
...Pioneer Mountains...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover SC SC FW SC SC FW SC SC SC FW FW FW FW CL CL CL CL
Cloud Cover (%) 35 30 25 30 25 20 45 40 30 20 15 10 15 0 0 5 5
Temperature 50 43 40 38 37 40 49 53 53 43 40 38 37 42 57 63 63
Min/Max Temp 37 54 37 64
Wind Dir W W W W W W W W NW W W SW SW SW W W W
Wind (mph) 13 9 8 5 4 5 9 11 8 4 4 4 4 5 8 11 11
Wind Gust (mph) 31 26
Precip Prob (%) 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.01 0.00 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 0.0 0.0 0.0
Snow Level (kft) 9.3 8.9 8.6 8.3 8.1 8.1 8.9 9.4 9.9 9.9 9.7 9.6 9.1 8.7 9.5 10.3 10.6
Snow Density (%) 50 33 33 33 33 25 33 100 100 0 0 0 0 0 0 0 0
...Beaverhead/Tendoy Mountains...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover FW FW FW FW FW FW FW FW FW FW FW FW FW FW CL CL CL
Cloud Cover (%) 20 20 15 20 15 10 25 15 20 15 15 15 15 5 5 0 0
Temperature 49 42 38 36 35 39 49 55 54 44 40 38 36 42 57 64 63
Min/Max Temp 35 55 36 65
Wind Dir W NW W W W W W W NW NW SW SW SW SW SW W W
Wind (mph) 13 8 5 4 3 4 9 11 8 4 3 4 4 4 6 11 10
Wind Gust (mph)
Precip Prob (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.00 0.00 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 0.0 0.0 0.0
Snow Level (kft) 9.4 9.2 8.9 8.6 8.2 8.2 8.9 9.4 10.1 10.1 10.0 9.8 9.3 8.9 9.6 10.4 10.8
Snow Density (%) 50 50 50 50 33 33 50 100 0 0 0 0 0 0 0 0 0
...Absoraka-Beartooth/Cooke City Mountains...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover SC SC SC FW FW FW FW SC BK SC FW FW SC CL CL CL CL
Cloud Cover (%) 40 45 30 15 10 5 25 50 55 25 15 15 25 5 5 5 5
Temperature 48 41 38 34 32 36 47 51 49 39 36 34 32 39 52 59 57
Min/Max Temp 31 52 31 59
Wind Dir W SW SW SW SW SW SW W W W SW S SW SW SW W W
Wind (mph) 25 23 18 11 8 10 14 18 12 5 4 4 5 8 12 14 14
Wind Gust (mph) 44 46 41 33 26 29 32 35 32
Precip Prob (%) 0 0 0 0 0 0 0 0 20 0 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.03 0.00 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 0.0 0.0 0.0
Snow Level (kft) 9.7 9.4 8.8 8.4 8.0 8.3 9.2 9.6 9.8 9.7 9.6 9.4 9.1 9.1 10.1 10.9 11.2
Snow Density (%) 50 33 25 25 25 25 33 50 50 50 50 100 100 100 0 0 0
...Absoraka Mountains Above 6000ft Northeast Facing...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover FW FW FW FW FW FW FW SC SC SC FW FW SC FW CL CL CL
Cloud Cover (%) 20 25 20 15 10 10 20 45 45 30 15 15 30 5 5 5 5
Temperature 53 46 42 40 38 41 50 54 52 44 41 39 38 44 56 62 61
Min/Max Temp 37 55 37 62
Wind Dir W W W SW SW SW W W W W SW SW SW SW W W W
Wind (mph) 24 20 18 14 12 13 13 17 12 9 9 10 12 12 11 13 12
Wind Gust (mph) 51 54 55 43 37 39 36 40 35 26 27 32 33 32 34 33
Precip Prob (%) 0 0 0 0 0 0 0 0 10 0 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.03 0.00 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 0.0 0.0 0.0
Snow Level (kft) 9.6 9.4 8.9 8.7 8.5 8.5 9.2 9.6 9.8 9.7 9.5 9.4 9.2 9.1 10.1 10.8 11.0
Snow Density (%) 50 50 50 50 50 50 50 50 50 50 100 100 100 100 0 0 0
...Absoraka Mountains Above 6000ft West Facing...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover SC SC FW FW FW FW FW SC SC FW FW FW FW CL CL CL CL
Cloud Cover (%) 35 35 20 15 10 5 20 35 45 25 15 20 25 5 5 5 0
Temperature 52 45 41 38 35 40 50 55 54 44 40 38 36 42 57 63 62
Min/Max Temp 34 56 35 64
Wind Dir SW W SW SW SW SW W W W W SW S S SW SW W W
Wind (mph) 19 16 11 8 5 6 12 14 10 4 4 4 5 6 10 12 12
Wind Gust (mph) 47 55 50 40 39 34 35 41 36 24 21 25 28 31 35 33
Precip Prob (%) 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.02 0.00 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 0.0 0.0 0.0
Snow Level (kft) 9.6 9.3 8.9 8.5 8.2 8.3 9.1 9.5 9.8 9.8 9.6 9.5 9.3 9.2 10.1 10.7 10.9
Snow Density (%) 100 50 50 50 50 33 50 100 100 100 100 0 0 0 0 0 0
...Crazy Mountains...
Date Tuesday 09/08/26 Wednesday 09/09/26
Time (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p
Cloud Cover FW FW FW FW FW FW FW SC SC SC SC FW SC CL CL CL CL
Cloud Cover (%) 20 15 15 25 15 10 5 25 45 45 30 20 30 5 0 0 5
Temperature 54 48 45 42 39 42 50 54 53 46 43 41 40 45 56 63 64
Min/Max Temp 39 55 39 64
Wind Dir W W W W W W W W W W W W W W W W W
Wind (mph) 33 31 28 25 19 18 21 24 19 12 11 11 11 12 17 20 20
Wind Gust (mph) 62 62 61 56 46 43 43 47 44 29 39 42 43
Precip Prob (%) 0 0 0 0 0 0 0 0 20 0 0 0 0 0 0 0 0
Precip Type R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.00 0.01 0.00 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 0.0 0.0 0.0
Snow Level (kft) 9.2 8.9 8.5 8.3 8.0 8.0 8.5 9.1 9.5 9.4 9.2 9.0 8.9 8.8 9.2 9.7 10.2
Snow Density (%) 100 100 50 50 50 50 50 100 100 100 100 0 0 0 0 0 0
$$
--- Precip Type Codes ---
CODE TYPE
T Thunderstorms
R Rain
S Snow
I Sleet
Z Freezing Rain