Avalanche Weather Guidance
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
031
FWUS45 KTFX 182201
AVGTFX
Avalanche Weather Guidance
National Weather Service Great Falls MT
400 PM MDT Tue Aug 18 2026
...Glacier National Park/Marias Pass...
Date Wednesday 08/19/26 Thursday 08/20/26
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 BK SC FW SC FW SC SC SC SC FW CL FW FW
Cloud Cover (%) 45 35 15 10 65 35 25 30 15 25 35 30 30 15 5 10 10
Temperature 64 57 55 53 52 55 63 67 67 58 55 53 51 54 62 66 66
Min/Max Temp 51 68 50 67
Wind Dir SW W SW SW SW SW W W W SW SW SW W W NW W NW
Wind (mph) 11 9 10 10 10 11 13 12 10 8 8 6 5 4 6 6 8
Wind Gust (mph) 29
Precip Prob (%) 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type 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 0.00 0.00 0.00 0.01
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) 11.7 11.5 11.3 11.2 11.4 11.4 11.4 11.7 11.8 11.6 11.3 11.3 11.1 10.8 11.1 11.8 12.1
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Bob Marshall/Scapegoat Wilderness...
Date Wednesday 08/19/26 Thursday 08/20/26
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 SC FW FW FW FW SC SC FW FW FW FW FW FW
Cloud Cover (%) 45 30 15 5 40 20 15 15 10 30 30 20 15 5 5 10 15
Temperature 66 58 53 51 50 55 65 69 69 58 54 52 50 56 68 72 71
Min/Max Temp 49 70 49 72
Wind Dir W W W W W W W W W W W W W W W W NW
Wind (mph) 12 8 8 9 9 9 10 10 9 5 5 4 4 4 5 8 6
Wind Gust (mph) 26 26
Precip Prob (%) 10 10 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 0.01
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) 11.9 11.7 11.1 10.6 10.8 10.9 11.3 11.6 11.6 11.2 10.8 10.8 10.6 10.6 11.3 12.1 12.6
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Nevada Mountains...
Date Wednesday 08/19/26 Thursday 08/20/26
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 SC FW FW FW FW SC SC FW FW CL CL FW FW
Cloud Cover (%) 50 35 20 15 25 15 15 15 5 30 25 15 10 5 5 10 15
Temperature 69 62 57 54 52 57 66 71 71 62 59 56 54 59 70 76 75
Min/Max Temp 52 72 53 77
Wind Dir W NW W SW W W W W W W SW SW SW SW W W NW
Wind (mph) 11 8 6 6 6 8 10 10 9 5 4 4 4 3 4 6 6
Wind Gust (mph)
Precip Prob (%) 10 10 0 0 0 0 0 0 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 0.00 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) 12.1 11.9 11.2 10.7 10.3 10.4 10.9 11.2 11.3 11.2 10.8 11.1 11.0 11.3 11.7 12.4 12.8
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Elkhorn/Boulder Mountains...
Date Wednesday 08/19/26 Thursday 08/20/26
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 FW SC FW FW FW FW SC SC FW FW CL FW FW FW
Cloud Cover (%) 65 45 35 15 30 10 15 10 20 35 25 15 10 5 5 15 25
Temperature 67 58 54 51 49 55 66 71 72 60 55 53 52 59 71 76 75
Min/Max Temp 49 72 51 76
Wind Dir W W W W W W W W NW NW W W SW SW SW W NW
Wind (mph) 9 6 5 6 5 5 8 8 6 4 4 4 4 3 5 6 6
Wind Gust (mph)
Precip Prob (%) 30 20 0 0 0 0 0 0 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 0.01 0.00 0.00 0.01
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 11.6 11.3 10.8 10.6 11.5 11.9 12.0 11.8 11.5 11.7 11.7 11.9 12.3 12.9 13.3
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Big Belt Mountains...
Date Wednesday 08/19/26 Thursday 08/20/26
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 FW FW FW FW FW FW SC FW FW FW CL CL FW FW
Cloud Cover (%) 55 40 25 15 25 15 15 20 10 30 25 15 5 5 5 10 15
Temperature 68 61 57 55 53 57 67 72 73 64 61 58 55 60 70 76 76
Min/Max Temp 53 73 54 77
Wind Dir W N SW SW SW SW W W W W S S S S SW W NW
Wind (mph) 10 8 5 6 6 8 8 8 8 5 4 4 4 4 5 5 5
Wind Gust (mph)
Precip Prob (%) 30 20 0 0 0 0 0 0 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 0.02 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) 12.1 12.0 11.7 11.0 10.7 10.7 11.1 11.6 11.7 11.6 11.4 11.3 11.4 11.3 11.7 12.4 12.8
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Little Belt Mountains...
Date Wednesday 08/19/26 Thursday 08/20/26
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 FW FW FW FW FW FW FW FW FW FW FW CL CL FW FW
Cloud Cover (%) 50 45 20 15 20 15 15 20 10 20 25 20 15 5 5 5 15
Temperature 68 58 55 54 52 59 68 72 73 61 57 55 53 62 72 76 75
Min/Max Temp 51 73 53 77
Wind Dir W W SW SW W W W W W W SW SW SW SW W NW NW
Wind (mph) 9 5 5 9 9 9 10 10 8 4 5 5 5 4 8 9 8
Wind Gust (mph) 26 28 29 27 27
Precip Prob (%) 20 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type T 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 0.03 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) 12.1 12.0 11.9 11.4 10.8 11.0 11.5 11.8 11.8 11.5 11.4 11.7 11.2 11.1 11.6 12.2 12.6
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Highwood Mountains...
Date Wednesday 08/19/26 Thursday 08/20/26
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 FW FW FW FW SC SC FW CL CL FW FW
Cloud Cover (%) 40 40 15 15 25 30 20 15 10 15 30 30 20 5 5 5 10
Temperature 70 62 60 59 58 63 70 74 74 65 63 61 60 64 70 75 74
Min/Max Temp 57 75 59 75
Wind Dir W W SW SW W W W W W SW SW SW SW W NW NW N
Wind (mph) 9 6 6 9 11 12 12 11 8 4 6 6 6 4 8 8 8
Wind Gust (mph)
Precip Prob (%) 20 20 0 0 0 0 0 0 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 0.02 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) 11.9 12.0 11.7 11.4 11.0 11.2 11.6 11.9 11.9 11.9 11.8 11.7 11.5 11.0 10.9 11.2 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 Wednesday 08/19/26 Thursday 08/20/26
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 FW FW FW SC FW SC SC FW CL CL FW FW
Cloud Cover (%) 65 55 35 25 30 15 15 25 25 20 30 30 25 5 5 10 20
Temperature 69 60 56 55 55 64 71 75 76 64 60 58 56 66 75 79 78
Min/Max Temp 53 76 55 80
Wind Dir NW SW SW SW W W NW NW NW NW S S SW SW NW NW N
Wind (mph) 9 6 6 8 8 9 10 10 8 3 4 5 5 3 5 8 8
Wind Gust (mph)
Precip Prob (%) 30 20 0 0 0 0 0 0 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 0.05 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) 12.0 11.9 11.9 11.7 11.2 11.0 11.6 12.1 12.1 12.0 11.6 11.7 11.5 11.2 11.4 12.1 12.5
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Bears Paw Mountains...
Date Wednesday 08/19/26 Thursday 08/20/26
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 FW SC SC FW SC SC FW SC SC SC FW FW FW FW
Cloud Cover (%) 50 40 30 25 40 40 20 30 40 20 30 40 30 10 5 5 10
Temperature 72 61 58 56 55 63 71 75 75 62 60 57 55 65 73 76 76
Min/Max Temp 53 76 55 77
Wind Dir W SW SW W W W W NW NW N NE SE S S E NW NW
Wind (mph) 10 6 5 8 10 8 10 10 8 2 2 2 2 3 6 6 6
Wind Gust (mph)
Precip Prob (%) 20 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type T R
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 0.00 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) 11.6 11.6 11.6 11.5 11.3 11.3 11.7 12.1 12.2 12.2 12.0 12.1 12.0 11.9 11.8 11.9 11.9
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Castle/Crazy Mountains...
Date Wednesday 08/19/26 Thursday 08/20/26
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 SC FW FW FW FW SC FW SC SC FW FW CL CL FW FW
Cloud Cover (%) 75 55 25 20 20 5 15 30 15 30 25 15 10 5 5 10 20
Temperature 68 60 55 53 51 57 67 72 73 63 58 55 53 60 73 78 77
Min/Max Temp 50 73 53 78
Wind Dir W NW SW SW SW W W W W NW SW S SW SW W W NW
Wind (mph) 10 9 6 8 8 10 14 14 11 4 4 4 5 5 9 11 9
Wind Gust (mph) 29 31 34 34 31
Precip Prob (%) 30 20 0 0 0 0 0 0 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 0.01 0.00 0.00 0.01
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) 12.1 12.1 11.9 11.4 11.0 10.8 11.2 11.7 11.9 12.0 11.8 11.4 11.6 11.6 11.9 12.6 12.9
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Bridger Range...
Date Wednesday 08/19/26 Thursday 08/20/26
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 SC FW SC CL FW FW FW SC SC FW FW CL CL FW SC
Cloud Cover (%) 70 75 45 20 30 5 10 10 15 30 30 20 10 5 5 10 25
Temperature 67 58 54 52 50 56 66 72 72 62 58 55 53 60 72 77 76
Min/Max Temp 50 73 53 78
Wind Dir W NW SW SW SW W W W NW N SE S S SW W W NW
Wind (mph) 9 8 5 4 4 5 10 9 6 3 2 2 3 3 4 8 5
Wind Gust (mph)
Precip Prob (%) 30 20 0 0 0 0 0 0 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 0.02 0.00 0.00 0.01
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 12.0 11.5 11.4 11.1 11.3 12.0 12.3 12.3 12.0 11.9 11.9 11.9 12.1 12.7 13.1
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Madison Range/Spanish Peaks...
Date Wednesday 08/19/26 Thursday 08/20/26
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 FW SC FW CL FW FW SC FW FW FW FW FW FW SC
Cloud Cover (%) 65 60 50 25 35 10 5 10 10 30 25 20 15 5 10 20 40
Temperature 61 53 50 48 46 52 63 68 68 57 53 51 50 57 68 73 71
Min/Max Temp 46 69 49 74
Wind Dir W SW SW W SW SW W W W SW S S S S W W W
Wind (mph) 8 4 4 4 4 5 10 10 8 3 4 4 4 4 6 9 6
Wind Gust (mph)
Precip Prob (%) 50 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
Precip Type R R
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 0.04 0.00 0.00 0.05
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 12.6 12.2 12.0 12.0 12.0 12.3 12.5 12.7 12.7 12.7 12.7 12.5 12.4 12.9 13.4 13.8
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Gallatin Range/Hyalite Mountains...
Date Wednesday 08/19/26 Thursday 08/20/26
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 FW SC FW FW FW FW SC SC FW FW FW FW FW SC
Cloud Cover (%) 65 70 55 20 30 10 5 10 10 30 30 20 15 5 10 20 30
Temperature 62 55 51 49 47 53 65 70 69 58 55 52 51 57 71 74 73
Min/Max Temp 46 70 50 75
Wind Dir W SW SW SW SW W W W NW SW SW S S S W W NW
Wind (mph) 6 4 5 5 6 6 10 10 8 3 5 5 5 4 5 9 6
Wind Gust (mph)
Precip Prob (%) 50 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
Precip Type R R
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 0.04 0.00 0.00 0.04
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 12.4 12.2 11.9 11.9 11.9 12.3 12.5 12.6 12.6 12.5 12.5 12.4 12.3 12.8 13.2 13.6
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Lionhead Range...
Date Wednesday 08/19/26 Thursday 08/20/26
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 SC SC FW CL FW FW SC FW FW FW FW FW FW SC
Cloud Cover (%) 60 55 55 30 30 10 5 10 20 30 25 15 15 10 5 15 30
Temperature 64 54 49 46 43 50 65 72 71 57 52 48 45 54 71 77 76
Min/Max Temp 42 73 44 78
Wind Dir SW W NE NE E W W W W S SE E E E SW SW SW
Wind (mph) 9 5 3 2 2 2 6 8 5 4 1 2 2 2 4 8 4
Wind Gust (mph)
Precip Prob (%) 20 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
Precip Type T R
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 0.05 0.00 0.00 0.04
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 12.6 12.3 12.1 12.1 12.5 12.8 13.1 13.2 13.1 12.9 12.8 12.8 13.0 13.6 13.9
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Tobacco Root Mountains...
Date Wednesday 08/19/26 Thursday 08/20/26
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 FW SC FW CL FW FW SC FW FW FW FW FW FW SC
Cloud Cover (%) 60 60 35 20 25 5 5 5 20 30 25 20 10 10 10 20 30
Temperature 63 55 52 50 49 54 63 69 68 59 56 53 52 58 68 73 72
Min/Max Temp 48 69 51 74
Wind Dir NW NW W W SW SW W W W NW SW SW SW SW W W NW
Wind (mph) 11 8 5 6 6 8 10 11 9 4 4 4 5 4 5 8 6
Wind Gust (mph)
Precip Prob (%) 40 30 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
Precip Type R R
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 0.03 0.00 0.00 0.04
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 12.3 12.0 11.7 11.6 11.5 11.8 12.3 12.5 12.4 12.5 12.5 12.2 12.3 12.6 13.2 13.6
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 Wednesday 08/19/26 Thursday 08/20/26
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 FW SC FW FW FW FW SC SC FW FW FW FW FW SC
Cloud Cover (%) 65 50 40 25 30 5 5 10 20 35 25 15 10 10 10 20 45
Temperature 66 57 52 50 48 54 66 71 71 59 56 53 52 58 71 76 74
Min/Max Temp 48 72 51 76
Wind Dir NW N W W SW SW W W W NW SE SE S S SW W W
Wind (mph) 11 6 4 4 4 5 10 11 9 4 4 4 4 4 6 9 8
Wind Gust (mph)
Precip Prob (%) 30 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
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 0.01 0.00 0.00 0.04
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 12.7 12.5 12.2 12.1 11.9 12.2 12.6 12.8 12.8 12.8 12.7 12.6 12.6 13.0 13.5 13.9
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Centennial Mountains...
Date Wednesday 08/19/26 Thursday 08/20/26
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 FW SC CL CL FW FW SC SC FW FW FW FW FW SC
Cloud Cover (%) 65 50 50 25 25 5 5 15 20 35 25 15 15 10 5 20 35
Temperature 65 56 51 49 46 52 64 70 70 59 55 53 51 57 69 74 73
Min/Max Temp 46 71 50 75
Wind Dir W N NE NW NW W W W W W NE NE NE NE SW SW SW
Wind (mph) 10 6 4 4 3 4 10 11 8 5 4 4 4 4 5 10 8
Wind Gust (mph)
Precip Prob (%) 20 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
Precip Type T 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 0.03 0.00 0.00 0.04
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 12.8 12.6 12.4 12.1 12.0 12.4 12.9 13.0 13.1 13.0 12.9 12.8 12.8 13.0 13.7 14.0
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Anaconda/Highland Ranges...
Date Wednesday 08/19/26 Thursday 08/20/26
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 FW FW SC CL CL FW FW SC FW FW FW FW FW FW SC
Cloud Cover (%) 60 45 25 10 25 5 5 20 20 35 25 10 10 5 10 25 25
Temperature 67 58 53 50 48 53 65 70 70 59 55 53 50 55 69 75 74
Min/Max Temp 47 71 49 76
Wind Dir NW NW NW W W SW W W NW NW N S S S SW W NW
Wind (mph) 12 8 4 3 3 4 6 9 8 4 3 3 3 3 4 6 5
Wind Gust (mph)
Precip Prob (%) 20 20 0 0 0 0 0 0 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 0.00 0.00 0.02
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) 12.4 12.2 11.8 11.4 11.0 10.9 11.7 12.0 12.2 12.3 12.5 12.1 12.1 12.3 12.7 13.2 13.5
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Pioneer Mountains...
Date Wednesday 08/19/26 Thursday 08/20/26
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 FW FW SC FW CL FW FW SC FW FW FW FW FW FW SC
Cloud Cover (%) 60 50 25 15 30 5 5 15 25 35 20 10 10 10 10 25 30
Temperature 66 58 53 50 48 53 64 70 70 59 55 53 51 57 69 74 73
Min/Max Temp 48 71 50 75
Wind Dir NW NW W W W SW W W W NW W SW SW SW SW W W
Wind (mph) 12 8 4 4 4 5 9 10 9 4 4 3 4 4 5 9 6
Wind Gust (mph)
Precip Prob (%) 20 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
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 0.00 0.00 0.04
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 12.4 12.2 11.9 11.5 11.2 11.8 12.3 12.4 12.5 12.6 12.3 12.2 12.4 12.8 13.3 13.7
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Beaverhead/Tendoy Mountains...
Date Wednesday 08/19/26 Thursday 08/20/26
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 CL FW SC SC FW FW FW FW FW FW SC
Cloud Cover (%) 50 35 25 15 25 5 5 25 30 30 20 15 10 10 10 25 45
Temperature 67 58 52 49 47 54 66 71 71 59 54 52 51 58 71 76 74
Min/Max Temp 47 72 50 76
Wind Dir NW NW NW W SW SW W W W NW W SW S SW SW W W
Wind (mph) 12 8 3 4 4 5 10 11 9 4 4 3 4 4 5 10 8
Wind Gust (mph) 27
Precip Prob (%) 20 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
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 0.00 0.00 0.05
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 12.8 12.5 12.1 11.8 11.5 12.1 12.6 12.8 12.9 12.9 12.7 12.6 12.7 13.1 13.6 13.9
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 Wednesday 08/19/26 Thursday 08/20/26
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 FW FW FW FW SC FW FW FW CL FW SC SC
Cloud Cover (%) 80 70 60 30 35 15 10 15 25 30 20 15 10 0 10 30 40
Temperature 56 48 44 42 41 47 59 65 65 52 48 45 44 52 65 70 68
Min/Max Temp 40 66 43 71
Wind Dir W W SW SW SW SW W W W W SW S S SW W W W
Wind (mph) 10 6 4 4 4 6 11 12 10 3 3 3 4 4 9 11 8
Wind Gust (mph)
Precip Prob (%) 30 20 0 0 0 0 0 0 0 0 0 0 0 0 5 5 10
Precip Type
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 0.05 0.00 0.00 0.04
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 12.2 12.0 11.9 12.1 12.6 12.9 13.0 12.8 12.6 12.4 12.4 12.4 12.9 13.4 13.6
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 Wednesday 08/19/26 Thursday 08/20/26
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 FW SC FW FW FW FW SC FW FW FW CL FW FW SC
Cloud Cover (%) 75 75 60 25 30 10 10 20 25 30 25 20 15 5 10 20 35
Temperature 60 53 50 48 47 54 63 68 67 56 53 51 50 59 69 72 70
Min/Max Temp 47 68 50 73
Wind Dir W W SW SW SW W NW NW NW SW SW SW SW SW W NW NW
Wind (mph) 10 10 9 9 9 9 11 12 9 4 6 8 9 6 9 10 8
Wind Gust (mph) 26 29 31 28 28 29
Precip Prob (%) 20 20 0 0 0 0 0 0 0 0 0 0 0 0 5 5 5
Precip Type
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 0.05 0.00 0.00 0.04
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 12.4 12.1 11.9 11.7 11.9 12.5 12.8 12.9 12.7 12.6 12.3 12.4 12.3 12.8 13.4 13.5
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 Wednesday 08/19/26 Thursday 08/20/26
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 SC SC FW FW FW FW SC FW FW FW CL FW FW SC
Cloud Cover (%) 70 65 50 25 35 10 10 15 20 30 25 20 15 5 10 20 35
Temperature 62 53 49 47 44 51 64 70 69 57 53 50 48 55 69 74 73
Min/Max Temp 44 70 47 75
Wind Dir W W S SW SW SW W W W SW S S S S W W W
Wind (mph) 9 5 4 4 4 5 10 11 9 3 4 4 4 4 6 10 8
Wind Gust (mph) 26 23 21 25 29 31 28 23 27 29
Precip Prob (%) 30 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
Precip Type R R
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 0.04 0.00 0.00 0.05
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 12.6 12.3 12.0 12.0 12.0 12.5 12.7 12.8 12.8 12.7 12.6 12.5 12.5 12.9 13.4 13.7
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Crazy Mountains...
Date Wednesday 08/19/26 Thursday 08/20/26
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 SC FW SC FW FW SC FW SC SC FW FW CL CL FW FW
Cloud Cover (%) 65 80 40 25 30 5 10 30 10 35 35 20 10 5 5 10 20
Temperature 65 57 53 51 50 56 66 70 70 60 57 54 53 61 71 75 74
Min/Max Temp 49 71 52 76
Wind Dir W W W W W W W W W NW W W W W W W NW
Wind (mph) 11 9 8 10 11 12 16 16 12 6 4 4 5 5 9 11 10
Wind Gust (mph) 29 32 34 34 31
Precip Prob (%) 20 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
Precip Type T 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 0.02 0.00 0.00 0.01
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) 12.1 12.1 12.0 11.6 11.2 11.1 11.4 11.8 12.2 12.2 12.1 11.7 11.9 11.8 12.1 12.7 13.0
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