Avalanche Weather Guidance
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
552
FWUS45 KTFX 172202
AVGTFX
Avalanche Weather Guidance
National Weather Service Great Falls MT
400 PM MDT Mon Aug 17 2026
...Glacier National Park/Marias Pass...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 BK SC SC SC SC SC FW FW SC FW FW FW FW
Cloud Cover (%) 40 40 35 40 70 50 35 40 35 30 20 20 40 10 5 10 15
Temperature 62 55 52 51 51 55 62 65 63 56 54 53 52 55 63 67 66
Min/Max Temp 49 65 51 67
Wind Dir W W SW SW SW SW W W W SW SW SW SW SW W W W
Wind (mph) 8 4 5 6 8 8 11 13 10 9 10 11 11 11 13 12 11
Wind Gust (mph)
Precip Prob (%) 20 20 10 5 0 0 10 20 5 5 0 0 0 0 0 0 0
Precip Type T T T
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 0.00 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) 11.6 11.6 11.5 11.3 11.1 11.2 11.3 11.6 11.8 11.6 11.4 11.2 11.3 11.4 11.5 11.9 11.9
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Bob Marshall/Scapegoat Wilderness...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 SC SC SC SC SC SC SC SC FW CL FW FW
Cloud Cover (%) 45 45 35 40 40 40 45 45 45 40 45 25 50 5 5 10 15
Temperature 66 57 53 51 50 55 64 67 65 57 53 51 49 55 65 69 68
Min/Max Temp 49 67 49 69
Wind Dir W NW W W W W W W W W W W W W W W W
Wind (mph) 9 3 3 4 4 4 9 10 8 5 6 8 8 8 9 10 9
Wind Gust (mph) 25
Precip Prob (%) 20 20 10 5 0 0 20 20 5 10 0 0 0 0 0 0 0
Precip Type T T T T
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 0.02 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) 11.8 11.9 11.7 11.5 11.3 11.3 11.6 11.9 12.0 11.7 11.3 10.8 10.5 10.7 11.2 11.8 11.8
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Nevada Mountains...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 SC SC SC SC BK SC SC FW SC CL CL FW FW
Cloud Cover (%) 60 60 60 65 50 40 30 40 60 50 35 25 45 5 5 10 15
Temperature 69 61 57 56 54 57 66 69 68 60 57 54 52 56 66 71 71
Min/Max Temp 53 70 51 72
Wind Dir W NW NW SW SW W W W W SW SW SW SW SW W W W
Wind (mph) 9 4 3 3 4 3 8 10 8 5 5 6 6 5 9 10 9
Wind Gust (mph)
Precip Prob (%) 30 20 10 5 5 0 10 20 10 10 0 0 0 0 0 0 0
Precip Type T T T
6 Hour QPF 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.01 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.01 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) 12.2 12.1 12.0 11.7 11.5 11.6 11.9 12.0 12.1 11.9 11.2 10.8 10.4 10.5 10.6 11.4 11.8
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Elkhorn/Boulder Mountains...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 BK SC SC SC BK OV OV SC FW SC CL CL FW FW
Cloud Cover (%) 75 85 75 55 35 30 50 55 80 80 45 20 35 5 5 10 15
Temperature 67 59 55 53 52 56 66 68 67 58 53 51 49 55 67 72 71
Min/Max Temp 51 69 49 73
Wind Dir NW NW W W SW W W NW W W W W W W W W NW
Wind (mph) 9 5 4 4 4 3 6 9 6 5 5 6 6 4 6 8 8
Wind Gust (mph)
Precip Prob (%) 20 20 10 5 0 5 30 30 30 20 0 0 0 0 0 0 0
Precip Type T T T T T T T
6 Hour QPF 0.00 0.00 0.00 0.03 0.01 0.00 0.00 0.00
12 Hour QPF 0.00 0.03 0.01 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.03 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) 12.7 12.5 12.4 12.1 12.0 12.0 12.2 12.4 12.4 12.2 11.7 11.5 11.1 11.1 11.5 12.1 12.4
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Big Belt Mountains...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 FW SC SC BK BK SC FW SC CL CL FW FW
Cloud Cover (%) 65 65 55 55 50 25 30 45 65 65 40 20 35 5 5 5 10
Temperature 69 60 57 56 55 58 67 70 69 60 57 55 53 57 67 72 72
Min/Max Temp 54 71 53 73
Wind Dir NW N SW SW SW SW W W W SW SW S SW SW W W W
Wind (mph) 8 4 3 4 4 4 6 9 6 4 5 6 6 6 9 9 9
Wind Gust (mph)
Precip Prob (%) 20 20 10 5 5 0 10 20 20 10 0 0 0 0 0 0 0
Precip Type T T T T
6 Hour QPF 0.00 0.00 0.00 0.01 0.01 0.00 0.00 0.00
12 Hour QPF 0.00 0.01 0.01 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.03 0.07 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) 12.3 12.3 12.1 11.9 11.7 11.7 11.9 12.2 12.3 12.1 11.8 11.1 10.8 10.8 11.0 11.8 12.0
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Little Belt Mountains...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 BK BK BK BK SC SC BK OV BK SC FW SC CL CL CL FW
Cloud Cover (%) 70 65 55 60 55 25 40 55 75 55 45 25 40 5 5 5 5
Temperature 67 57 54 53 51 58 67 69 68 58 55 53 52 59 68 73 72
Min/Max Temp 51 70 51 74
Wind Dir NW N SW SW SW W W W NW SW SW SW SW W W W W
Wind (mph) 8 4 4 4 4 4 8 9 6 5 6 8 9 8 10 11 9
Wind Gust (mph) 28 28 27 27 29 27
Precip Prob (%) 50 20 10 5 5 5 20 30 20 10 0 0 0 0 0 0 0
Precip Type T T T T T
6 Hour QPF 0.01 0.00 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 0.04 0.08 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) 12.3 12.2 12.1 11.9 11.7 11.6 11.9 12.2 12.3 12.1 12.0 11.6 11.0 10.9 11.4 11.9 12.1
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Highwood Mountains...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 SC SC SC SC SC SC BK SC SC FW SC FW CL CL FW
Cloud Cover (%) 50 50 35 35 30 30 35 50 55 40 35 10 35 10 5 5 10
Temperature 69 60 58 57 56 61 68 71 70 61 59 58 58 63 70 74 73
Min/Max Temp 56 72 57 74
Wind Dir NW N SW SW SW W W NW NW SW SW SW SW W W W W
Wind (mph) 9 4 5 4 4 3 5 9 5 5 8 10 11 9 12 11 9
Wind Gust (mph)
Precip Prob (%) 20 20 20 5 0 5 5 20 20 10 0 0 0 0 0 0 0
Precip Type T T T T T T
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 0.05 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) 12.0 12.0 11.7 11.6 11.5 11.4 11.5 11.7 12.1 12.0 11.9 11.5 11.1 11.1 11.3 11.7 12.1
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Snowy/Judith Mountains...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 SC SC SC SC BK BK OV SC SC SC FW CL FW FW
Cloud Cover (%) 75 80 55 45 50 35 50 60 65 70 35 25 35 5 5 5 10
Temperature 70 60 57 55 53 62 70 71 69 60 57 55 54 64 72 76 75
Min/Max Temp 52 72 53 77
Wind Dir NW NW W SW SW S W W NW SW SW SW W W W NW NW
Wind (mph) 6 4 4 4 3 2 4 5 4 5 6 6 8 6 9 9 8
Wind Gust (mph)
Precip Prob (%) 40 20 20 10 10 10 30 30 30 20 0 0 0 0 0 0 0
Precip Type T T T T T T T
6 Hour QPF 0.02 0.00 0.01 0.02 0.01 0.00 0.00 0.00
12 Hour QPF 0.02 0.03 0.01 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.04 0.09 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) 12.2 12.1 11.9 11.9 11.7 11.7 11.8 12.1 12.2 12.3 12.0 11.7 11.4 11.3 11.4 12.0 12.3
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Bears Paw Mountains...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 SC SC SC SC SC SC SC CL FW FW FW
Cloud Cover (%) 65 50 45 30 30 30 45 45 50 45 40 25 30 5 10 10 10
Temperature 69 58 55 53 51 61 69 72 71 59 57 55 53 63 72 75 74
Min/Max Temp 50 73 53 76
Wind Dir NW N NW SW W NW SW W NW S S SW W W W W W
Wind (mph) 6 3 2 2 1 1 4 5 3 2 3 4 5 6 9 10 9
Wind Gust (mph)
Precip Prob (%) 20 20 20 10 0 10 10 20 20 5 0 0 0 0 0 0 0
Precip Type T T T T T T T
6 Hour QPF 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.01 0.00 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.02 0.05 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) 11.2 11.2 11.2 11.0 11.1 11.2 11.4 11.5 11.8 11.8 11.7 11.6 11.3 11.3 11.4 11.7 12.1
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Castle/Crazy Mountains...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 OV BK SC SC FW SC BK OV OV SC SC SC CL CL CL FW
Cloud Cover (%) 70 85 55 50 40 15 35 50 75 70 45 30 35 5 5 5 10
Temperature 69 60 56 54 53 58 67 70 69 60 55 53 51 57 68 73 72
Min/Max Temp 52 71 51 73
Wind Dir W N SW SW SW SW W W W SW SW SW SW SW W W W
Wind (mph) 13 6 5 4 5 5 10 14 10 6 6 8 8 8 13 14 12
Wind Gust (mph) 31 32 28 32 33 31
Precip Prob (%) 20 20 10 5 5 5 20 30 30 5 0 0 0 0 0 0 0
Precip Type T T T T T
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 0.04 0.06 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) 12.5 12.5 12.3 11.9 11.8 11.7 12.0 12.2 12.3 12.1 11.9 11.4 11.0 11.0 11.5 11.8 12.2
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Bridger Range...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 FW SC SC BK OV BK SC SC CL CL FW FW
Cloud Cover (%) 70 85 60 60 55 20 35 50 65 75 65 30 30 5 0 5 15
Temperature 68 58 56 54 53 57 66 70 68 58 54 52 50 56 67 72 72
Min/Max Temp 52 70 50 73
Wind Dir NW SW SW SW SW SW W NW W SW SW SW SW SW W W W
Wind (mph) 8 4 3 3 3 3 6 10 5 3 3 3 4 4 9 10 8
Wind Gust (mph)
Precip Prob (%) 30 20 20 5 5 5 10 30 30 10 0 0 0 0 0 0 0
Precip Type T T T T T T
6 Hour QPF 0.02 0.00 0.00 0.03 0.00 0.00 0.00 0.00
12 Hour QPF 0.02 0.03 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.07 0.09 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) 12.8 12.7 12.5 12.3 12.1 12.0 12.2 12.3 12.5 12.3 12.0 11.6 11.6 11.4 11.6 12.2 12.5
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Madison Range/Spanish Peaks...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 BK BK SC BK BK BK BK SC SC SC CL CL FW FW
Cloud Cover (%) 80 75 80 70 60 30 50 55 65 55 45 25 25 5 5 10 15
Temperature 60 53 51 50 49 53 62 65 61 52 49 48 46 53 64 68 67
Min/Max Temp 48 65 46 69
Wind Dir W S S S SW SW W W NW E S S S SW W W W
Wind (mph) 8 4 4 4 4 3 8 11 6 4 4 4 4 4 9 11 9
Wind Gust (mph) 28
Precip Prob (%) 50 30 20 10 5 5 30 30 40 10 0 0 0 0 0 0 0
Precip Type T T T T T T T
6 Hour QPF 0.05 0.00 0.02 0.02 0.02 0.00 0.00 0.00
12 Hour QPF 0.05 0.04 0.02 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.08 0.11 0.02 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) 13.2 13.1 12.9 12.8 12.8 12.6 12.7 12.9 13.0 12.8 12.4 12.2 12.1 11.9 12.2 12.6 12.7
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Gallatin Range/Hyalite Mountains...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 BK BK SC BK BK BK BK BK FW SC CL CL FW FW
Cloud Cover (%) 75 85 75 70 55 30 55 55 65 55 55 25 25 5 5 10 15
Temperature 63 55 52 51 49 53 64 66 63 54 51 48 47 53 66 70 69
Min/Max Temp 49 67 46 70
Wind Dir NW S S S S SW W W NW SW SW SW SW SW W W W
Wind (mph) 8 5 5 4 5 4 8 10 6 4 5 5 6 5 9 10 9
Wind Gust (mph)
Precip Prob (%) 50 30 20 10 10 10 30 30 40 20 0 0 0 0 0 0 0
Precip Type T T T T T T T
6 Hour QPF 0.04 0.00 0.01 0.03 0.02 0.00 0.00 0.00
12 Hour QPF 0.04 0.04 0.02 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.07 0.13 0.02 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) 13.2 12.9 12.8 12.7 12.7 12.6 12.7 12.9 12.9 12.8 12.4 12.1 12.0 11.8 12.1 12.5 12.7
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Lionhead Range...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 OV OV OV BK SC SC BK BK BK SC FW SC FW CL FW FW
Cloud Cover (%) 70 90 90 85 60 45 50 55 65 65 40 25 30 5 5 10 20
Temperature 63 55 51 48 46 51 66 68 63 53 48 46 43 50 66 72 70
Min/Max Temp 44 70 41 73
Wind Dir W NE NE NE SE SW SW W W NE E E E SW W W W
Wind (mph) 4 2 2 1 1 2 5 9 4 2 1 1 1 1 5 8 5
Wind Gust (mph)
Precip Prob (%) 40 20 20 5 10 5 20 30 20 20 0 0 0 0 0 0 0
Precip Type T T T T T T T
6 Hour QPF 0.01 0.00 0.00 0.03 0.00 0.00 0.00 0.00
12 Hour QPF 0.01 0.03 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.06 0.10 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) 13.3 13.4 13.3 13.1 13.1 12.8 12.7 13.1 13.3 13.2 12.8 12.4 12.1 12.0 12.3 12.8 13.0
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Tobacco Root Mountains...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 BK SC FW SC BK BK BK SC FW SC CL FW FW FW
Cloud Cover (%) 80 75 75 70 45 25 45 50 60 60 45 25 30 5 5 10 20
Temperature 63 55 53 52 51 55 63 66 63 54 52 50 49 54 64 69 68
Min/Max Temp 51 66 49 69
Wind Dir NW NW NW W W SW W W NW SW SW SW SW SW W W W
Wind (mph) 8 5 4 4 5 4 8 11 6 4 5 8 8 6 9 10 10
Wind Gust (mph)
Precip Prob (%) 40 40 20 10 5 0 20 30 40 30 5 5 0 0 0 0 0
Precip Type T T T T T T T
6 Hour QPF 0.04 0.00 0.01 0.04 0.01 0.00 0.00 0.00
12 Hour QPF 0.04 0.05 0.01 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.07 0.11 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) 13.0 12.9 12.7 12.7 12.6 12.5 12.5 12.8 12.8 12.6 12.3 12.1 11.9 11.7 11.9 12.4 12.7
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Snowcrest/Gravelly/Ruby/Blacktail Ranges...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 BK BK SC SC BK BK SC SC FW FW CL CL FW FW
Cloud Cover (%) 80 75 85 60 60 35 45 55 65 45 40 20 25 5 5 10 20
Temperature 64 56 54 52 51 55 66 69 65 55 52 50 48 54 67 71 70
Min/Max Temp 50 69 48 72
Wind Dir W E SE S SW SW W W NW N W SW S SW W W W
Wind (mph) 9 5 4 4 3 3 8 12 9 4 4 4 4 4 8 11 10
Wind Gust (mph)
Precip Prob (%) 50 20 20 5 0 5 20 30 30 5 0 0 0 0 0 0 0
Precip Type T T T T T T
6 Hour QPF 0.01 0.00 0.01 0.01 0.01 0.00 0.00 0.00
12 Hour QPF 0.01 0.02 0.01 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.04 0.07 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) 13.3 13.2 13.0 12.9 12.8 12.5 12.6 12.9 13.1 13.0 12.6 12.3 12.1 12.0 12.3 12.6 12.8
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Centennial Mountains...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 BK SC SC BK BK BK SC FW FW FW CL FW FW
Cloud Cover (%) 75 90 90 75 70 40 50 65 65 60 35 20 25 5 5 10 20
Temperature 63 56 54 52 50 54 64 67 64 55 51 49 47 52 65 70 69
Min/Max Temp 49 68 46 71
Wind Dir W NE NE SE W S SW W W N NE N N W W W W
Wind (mph) 8 5 5 3 4 4 8 11 8 5 5 4 4 3 9 11 10
Wind Gust (mph)
Precip Prob (%) 40 20 20 5 5 5 20 30 20 10 0 0 0 0 0 0 0
Precip Type T T T T T T T
6 Hour QPF 0.05 0.00 0.00 0.04 0.00 0.00 0.00 0.00
12 Hour QPF 0.05 0.04 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.07 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) 13.4 13.4 13.2 13.1 13.0 12.7 12.8 13.2 13.3 13.1 12.7 12.3 12.1 12.0 12.4 12.7 13.0
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Anaconda/Highland Ranges...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 OV OV BK SC FW SC BK BK BK SC FW SC CL CL FW FW
Cloud Cover (%) 60 80 70 60 35 20 35 55 55 50 40 15 30 5 5 10 20
Temperature 66 58 55 52 50 54 65 67 66 57 53 50 48 53 65 70 70
Min/Max Temp 49 68 47 71
Wind Dir NW NW N NW W SW W W NW NW W SW SW SW SW W W
Wind (mph) 8 3 2 2 3 3 5 9 6 3 3 3 3 3 6 9 8
Wind Gust (mph)
Precip Prob (%) 20 20 20 5 5 0 20 30 20 5 0 0 0 0 0 0 0
Precip Type T T T T T T T
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 0.05 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) 12.9 12.8 12.8 12.7 12.5 12.3 12.4 12.7 12.7 12.5 12.2 11.8 11.5 11.5 11.8 12.4 12.7
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Pioneer Mountains...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 BK SC FW SC BK BK SC SC FW SC CL CL FW FW
Cloud Cover (%) 75 80 75 60 45 20 40 55 55 45 35 15 30 5 5 10 25
Temperature 64 57 54 52 50 54 64 67 65 56 52 50 48 54 65 70 69
Min/Max Temp 50 68 48 71
Wind Dir W N W SW SW SW W W NW W W W SW SW W W W
Wind (mph) 9 4 4 4 3 3 8 11 9 4 4 4 4 4 9 10 9
Wind Gust (mph)
Precip Prob (%) 40 20 20 5 5 0 20 30 20 20 0 0 0 0 0 0 0
Precip Type T T T T T T T
6 Hour QPF 0.03 0.01 0.00 0.03 0.00 0.00 0.00 0.00
12 Hour QPF 0.04 0.03 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.05 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) 13.0 13.0 12.9 12.8 12.6 12.4 12.5 12.7 12.8 12.6 12.4 12.1 11.8 11.7 12.0 12.4 12.8
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Beaverhead/Tendoy Mountains...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 BK BK SC SC BK BK SC FW FW SC FW CL FW SC
Cloud Cover (%) 75 75 80 55 50 25 45 50 50 35 20 15 30 5 5 15 25
Temperature 65 57 53 51 50 55 66 68 65 56 52 49 48 54 66 71 70
Min/Max Temp 49 69 47 72
Wind Dir W NE S SW SW SW W W NW NW W SW SW SW W W W
Wind (mph) 9 4 4 4 4 4 8 12 9 4 4 4 4 4 9 11 9
Wind Gust (mph)
Precip Prob (%) 40 20 20 5 0 0 20 30 20 5 0 0 0 0 0 0 0
Precip Type T T T T T T
6 Hour QPF 0.01 0.00 0.00 0.02 0.00 0.00 0.00 0.00
12 Hour QPF 0.01 0.02 0.00 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.03 0.06 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) 13.3 13.2 13.0 12.8 12.7 12.4 12.6 12.9 13.1 12.9 12.6 12.3 12.0 11.9 12.2 12.6 13.0
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Absoraka-Beartooth/Cooke City Mountains...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 SC BK OV OV OV SC SC SC FW CL FW FW
Cloud Cover (%) 90 95 75 80 70 40 65 75 90 70 50 35 35 5 5 20 20
Temperature 55 48 46 44 43 48 58 60 56 47 44 42 41 47 60 66 64
Min/Max Temp 42 62 40 66
Wind Dir W W W SW SW SW W W W SW SE S SW SW W W W
Wind (mph) 9 4 3 3 3 4 9 11 6 3 3 3 3 4 10 12 11
Wind Gust (mph) 25
Precip Prob (%) 30 60 30 10 20 20 50 40 50 40 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.12 0.00 0.03 0.08 0.07 0.00 0.00 0.00
12 Hour QPF 0.12 0.11 0.07 0.00
Low End QPF 0.00 0.01 0.00 0.00
High End QPF 0.13 0.17 0.07 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) 13.2 13.0 12.8 12.7 12.7 12.6 12.9 13.1 13.1 12.8 12.6 12.2 12.0 11.9 12.3 12.6 12.8
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Absoraka Mountains Above 6000ft Northeast Facing...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 SC BK BK OV OV BK SC SC CL CL FW FW
Cloud Cover (%) 85 90 70 80 75 45 65 65 80 80 60 40 30 5 5 15 20
Temperature 60 53 51 50 49 54 62 63 60 52 50 48 47 54 64 68 67
Min/Max Temp 49 64 47 68
Wind Dir W SW W SW SW SW NW W W SW SW SW SW SW W NW NW
Wind (mph) 10 9 8 8 8 6 9 9 8 8 9 9 10 8 10 11 10
Wind Gust (mph) 29 27 28 26 27 31 28
Precip Prob (%) 50 50 30 10 20 20 50 40 50 50 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.08 0.00 0.01 0.08 0.05 0.00 0.00 0.00
12 Hour QPF 0.08 0.09 0.05 0.00
Low End QPF 0.00 0.01 0.00 0.00
High End QPF 0.10 0.15 0.05 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) 13.1 12.9 12.7 12.6 12.6 12.5 12.8 13.0 13.0 12.8 12.4 12.0 11.8 11.8 12.2 12.6 12.8
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Absoraka Mountains Above 6000ft West Facing...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 BK SC BK BK OV BK SC SC SC CL CL FW FW
Cloud Cover (%) 80 85 75 75 65 35 60 65 75 65 50 30 35 5 5 10 15
Temperature 62 54 51 49 47 52 63 65 62 52 49 47 45 51 65 70 69
Min/Max Temp 46 67 44 70
Wind Dir W W SW SW SW SW W W NW NW S S S SW W W W
Wind (mph) 8 4 4 3 3 4 8 11 6 4 4 4 4 4 9 11 10
Wind Gust (mph) 29 26 32 27 21 23 21 27 31 28
Precip Prob (%) 40 40 20 10 10 10 40 30 50 20 0 0 0 0 0 0 0
Precip Type T T T T T T T
6 Hour QPF 0.05 0.00 0.02 0.03 0.03 0.00 0.00 0.00
12 Hour QPF 0.05 0.05 0.03 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.08 0.14 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) 13.3 13.1 12.9 12.8 12.8 12.7 12.8 13.0 13.1 12.9 12.5 12.2 12.1 11.9 12.2 12.6 12.8
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Crazy Mountains...
Date Tuesday 08/18/26 Wednesday 08/19/26
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 OV BK BK BK FW SC BK OV OV BK SC SC FW CL CL FW
Cloud Cover (%) 65 80 65 60 55 20 50 55 70 70 65 30 40 5 0 5 10
Temperature 66 58 54 53 52 57 65 68 66 57 53 51 50 57 67 71 70
Min/Max Temp 51 69 50 71
Wind Dir W W W W W W W NW W W W W W W W W W
Wind (mph) 13 6 5 5 5 5 10 14 10 6 8 9 10 9 13 17 13
Wind Gust (mph) 31 32 28 32 31
Precip Prob (%) 20 20 20 5 5 5 30 30 40 20 0 0 0 0 0 0 0
Precip Type T T T T T T T
6 Hour QPF 0.02 0.00 0.01 0.03 0.02 0.00 0.00 0.00
12 Hour QPF 0.02 0.04 0.02 0.00
Low End QPF 0.00 0.00 0.00 0.00
High End QPF 0.04 0.08 0.02 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) 12.6 12.7 12.5 12.2 12.0 11.9 12.2 12.4 12.3 12.3 12.0 11.6 11.3 11.3 11.7 12.1 12.4
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
$$
--- Precip Type Codes ---
CODE TYPE
T Thunderstorms
R Rain
S Snow
I Sleet
Z Freezing Rain