Avalanche Weather Guidance
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
849
FWUS45 KTFX 192201
AVGTFX
Avalanche Weather Guidance
National Weather Service Great Falls MT
400 PM MDT Sat Sep 19 2026
...Glacier National Park/Marias Pass...
Date Sunday 09/20/26 Monday 09/21/26
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 CL CL CL FW FW FW FW FW CL CL CL CL
Cloud Cover (%) 25 45 30 20 10 0 0 5 15 10 10 5 20 5 0 5 5
Temperature 56 48 46 45 44 48 58 62 60 50 47 46 45 49 61 64 61
Min/Max Temp 44 63 44 64
Wind Dir SE S SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind (mph) 8 6 6 8 9 9 6 6 5 8 9 10 10 10 10 11 9
Wind Gust (mph) 24
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 MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.5 10.4 10.1 9.9 9.6 9.5 9.6 10.2 10.4 10.1 9.8 9.5 9.3 9.2 9.2 9.7 9.8
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Bob Marshall/Scapegoat Wilderness...
Date Sunday 09/20/26 Monday 09/21/26
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 FW FW CL FW FW FW FW FW FW CL CL CL CL
Cloud Cover (%) 55 45 30 30 25 10 0 10 20 20 10 5 20 5 0 5 5
Temperature 53 46 43 42 41 45 58 62 61 50 46 44 43 47 62 65 63
Min/Max Temp 41 63 43 66
Wind Dir E SE S SW W W SW S S SW SW SW W SW SW W W
Wind (mph) 5 3 3 3 4 4 4 4 3 3 4 4 5 5 4 5 5
Wind Gust (mph)
Precip Prob (%) 5 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 MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.0 9.9 9.5 9.4 9.5 9.5 9.8 10.7 11.0 10.7 10.2 9.8 9.6 9.5 9.6 10.7 10.8
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Nevada Mountains...
Date Sunday 09/20/26 Monday 09/21/26
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 SC SC FW CL FW FW FW FW FW FW CL CL CL CL
Cloud Cover (%) 70 65 45 45 40 20 5 5 10 15 15 10 20 5 0 5 5
Temperature 52 47 45 44 42 45 56 62 61 52 49 46 44 47 61 66 64
Min/Max Temp 42 63 44 66
Wind Dir E NE NE W W SW SW S S SW SW SW SW SW SW SW W
Wind (mph) 5 3 2 2 3 4 3 4 3 3 4 4 4 4 5 5 4
Wind Gust (mph)
Precip Prob (%) 5 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 MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 9.9 9.8 9.4 9.4 9.6 9.6 9.7 10.4 10.6 10.5 10.3 10.1 9.9 9.8 9.8 10.4 10.5
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Elkhorn/Boulder Mountains...
Date Sunday 09/20/26 Monday 09/21/26
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 SC SC FW FW FW FW FW FW FW CL CL CL CL
Cloud Cover (%) 85 75 60 50 45 30 20 25 20 20 20 15 20 5 0 5 5
Temperature 47 44 43 41 40 44 54 58 57 47 45 43 42 46 59 63 62
Min/Max Temp 39 59 41 64
Wind Dir NE NE NE W W SW S E SE SW SW SW SW SW S SW W
Wind (mph) 4 3 2 2 3 3 3 5 3 4 4 4 4 4 4 5 4
Wind Gust (mph)
Precip Prob (%) 10 5 5 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 MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.2 10.1 10.1 10.0 9.9 9.9 10.1 10.7 10.8 10.4 10.2 10.1 9.9 9.7 9.9 10.8 11.1
Snow Density (%) 100 100 100 100 100 0 0 0 0 0 0 0 0 0 0 0 0
...Big Belt Mountains...
Date Sunday 09/20/26 Monday 09/21/26
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 SC SC FW FW FW FW FW SC SC FW CL CL CL
Cloud Cover (%) 85 75 65 65 50 30 15 20 10 10 20 25 40 10 0 5 5
Temperature 50 47 46 45 44 46 55 60 59 51 48 46 45 48 60 65 64
Min/Max Temp 43 61 44 66
Wind Dir E E E SE S SW SW SW SE SE SE S S S S SW SW
Wind (mph) 4 3 3 3 3 4 4 4 2 4 5 5 5 6 6 5 3
Wind Gust (mph)
Precip Prob (%) 10 5 5 5 5 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type 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 MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.1 9.8 9.7 9.7 9.7 9.7 9.9 10.4 10.6 10.5 10.3 10.0 9.7 9.6 9.7 10.1 10.3
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Little Belt Mountains...
Date Sunday 09/20/26 Monday 09/21/26
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 BK SC SC SC FW SC SC SC FW CL CL CL
Cloud Cover (%) 90 85 75 75 75 55 40 40 35 25 35 35 45 10 0 0 5
Temperature 48 44 43 42 42 46 55 60 58 48 46 44 44 49 62 66 64
Min/Max Temp 41 60 42 66
Wind Dir E E E SE S S NE NE SE S S S SW SW SW SW SW
Wind (mph) 5 4 3 2 2 3 3 5 4 6 6 5 5 5 4 6 5
Wind Gust (mph)
Precip Prob (%) 30 20 20 10 10 5 5 10 5 0 0 0 0 0 0 0 0
Precip Type R R R R R
6 Hour QPF 0.04 0.01 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.05 0.00 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 9.5 9.6 9.7 9.8 9.8 9.9 10.2 10.7 10.8 10.4 10.0 9.9 9.8 9.8 9.9 10.8 11.0
Snow Density (%) 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Highwood Mountains...
Date Sunday 09/20/26 Monday 09/21/26
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 FW FW FW FW FW FW SC FW CL CL CL
Cloud Cover (%) 90 85 70 85 70 35 20 15 10 10 15 20 30 5 0 0 5
Temperature 53 49 48 47 47 49 57 63 61 53 50 50 49 53 65 69 67
Min/Max Temp 46 63 48 69
Wind Dir SE SE SE SE SE SE SE SE SE SE S S S S S W W
Wind (mph) 6 8 6 6 4 4 3 4 8 9 4 4 4 3 3 4 5
Wind Gust (mph)
Precip Prob (%) 10 10 10 10 5 5 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 MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 8.9 8.8 9.3 9.4 9.4 9.4 9.7 10.1 10.2 9.7 9.8 9.8 9.9 9.9 9.9 10.2 10.6
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Snowy/Judith Mountains...
Date Sunday 09/20/26 Monday 09/21/26
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 BK BK BK BK SC OV SC FW CL CL
Cloud Cover (%) 95 95 95 95 95 90 80 65 60 50 55 50 75 30 10 5 5
Temperature 49 47 47 47 46 47 53 57 56 49 48 47 45 50 62 66 64
Min/Max Temp 44 58 44 66
Wind Dir N N N N N N NE NE SE SE S S S S S S S
Wind (mph) 6 5 4 3 3 2 3 4 5 8 6 5 4 4 5 5 6
Wind Gust (mph)
Precip Prob (%) 70 80 60 70 50 20 20 20 10 0 0 0 0 0 0 0 0
Precip Type R R R R R R R R
6 Hour QPF 0.11 0.12 0.06 0.01 0.00 0.00 0.00 0.00
12 Hour QPF 0.23 0.07 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 9.7 9.7 10.2 10.5 10.7 10.8 10.8 10.8 10.5 10.3 10.1 9.9 9.7 9.6 9.6 10.3 10.5
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Bears Paw Mountains...
Date Sunday 09/20/26 Monday 09/21/26
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 BK SC FW FW BK OV BK OV SC FW CL CL
Cloud Cover (%) 90 85 80 80 80 55 30 20 25 65 70 70 95 45 10 5 5
Temperature 57 50 48 46 45 50 58 62 60 50 49 48 47 50 61 66 64
Min/Max Temp 44 62 45 66
Wind Dir E E SE SE SE SE SE SE SE SE SE SE SE SE SE S SE
Wind (mph) 5 4 3 3 3 3 5 5 8 10 8 6 6 8 9 8 8
Wind Gust (mph)
Precip Prob (%) 10 10 10 20 5 5 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 MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 8.5 8.4 8.5 8.3 8.7 8.9 9.1 9.5 9.4 9.1 9.2 9.2 9.4 9.3 9.3 9.8 9.8
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Castle/Crazy Mountains...
Date Sunday 09/20/26 Monday 09/21/26
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 BK SC SC SC SC BK BK BK FW CL FW FW
Cloud Cover (%) 90 85 85 85 85 60 50 45 50 45 65 55 70 15 0 5 5
Temperature 46 44 44 43 43 44 52 57 56 48 45 44 43 47 59 64 62
Min/Max Temp 42 58 42 64
Wind Dir NE E NE NE N NW NW N E SE SE S S SW SW SW SW
Wind (mph) 6 5 3 3 3 4 4 5 4 4 4 4 4 4 5 6 4
Wind Gust (mph)
Precip Prob (%) 50 30 30 30 10 10 5 5 5 0 0 0 0 0 0 0 0
Precip Type R R R R R
6 Hour QPF 0.08 0.02 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.10 0.00 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.2 10.3 10.2 10.2 10.2 10.1 10.3 10.8 11.1 10.9 10.5 10.3 10.2 10.1 9.9 10.7 10.9
Snow Density (%) 100 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Bridger Range...
Date Sunday 09/20/26 Monday 09/21/26
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 BK SC SC SC FW SC BK OV FW CL CL CL
Cloud Cover (%) 85 85 85 80 80 50 40 45 25 20 45 55 70 15 0 5 5
Temperature 47 45 44 43 43 44 51 56 55 48 45 44 43 46 58 63 62
Min/Max Temp 41 57 42 63
Wind Dir NE NE NE N N NW NW NW SE SE SE SE S S SW W W
Wind (mph) 4 4 3 2 2 2 3 4 2 3 3 3 3 3 3 4 2
Wind Gust (mph)
Precip Prob (%) 50 40 20 10 5 5 0 5 0 0 0 0 0 0 0 0 0
Precip Type R R R R
6 Hour QPF 0.04 0.01 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.05 0.00 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.5 10.4 10.3 10.2 10.2 10.2 10.3 10.8 11.0 10.9 10.6 10.5 10.3 10.2 10.1 10.7 10.7
Snow Density (%) 100 100 100 100 100 0 0 0 0 0 0 0 0 0 0 0 0
...Madison Range/Spanish Peaks...
Date Sunday 09/20/26 Monday 09/21/26
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 BK BK BK SC SC SC SC SC FW CL FW FW
Cloud Cover (%) 85 85 85 85 75 60 55 50 50 35 35 35 35 5 0 10 10
Temperature 44 42 41 41 39 39 46 51 51 43 41 40 39 42 54 59 57
Min/Max Temp 38 52 37 59
Wind Dir N N N NW NW NW N NW N SE S S S S SW W W
Wind (mph) 5 4 2 2 2 3 4 5 3 3 3 3 3 4 3 5 4
Wind Gust (mph)
Precip Prob (%) 50 40 30 10 5 5 5 5 5 0 0 0 0 0 0 0 0
Precip Type R R R R
6 Hour QPF 0.06 0.01 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.07 0.00 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.7 10.6 10.4 10.3 10.2 10.2 10.6 11.1 11.1 10.8 10.7 10.6 10.5 10.4 10.8 11.4 11.5
Snow Density (%) 50 50 50 50 50 50 50 100 100 100 0 0 0 0 0 0 0
...Gallatin Range/Hyalite Mountains...
Date Sunday 09/20/26 Monday 09/21/26
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 BK BK BK SC SC SC SC SC FW CL FW FW
Cloud Cover (%) 85 85 85 85 85 65 60 60 50 30 30 35 40 5 5 15 15
Temperature 44 43 42 41 40 40 48 52 51 44 42 41 40 43 57 61 58
Min/Max Temp 39 53 38 61
Wind Dir N NE NE N NW NW N N NE S S S S S SW NW NW
Wind (mph) 5 4 2 2 2 3 4 6 4 4 4 4 4 5 2 5 4
Wind Gust (mph)
Precip Prob (%) 50 40 30 20 10 5 5 5 5 0 0 0 0 0 5 5 0
Precip Type R R R R
6 Hour QPF 0.06 0.01 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.07 0.00 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.6 10.5 10.4 10.3 10.2 10.2 10.5 11.0 11.0 10.8 10.6 10.5 10.5 10.4 10.7 11.5 11.7
Snow Density (%) 50 50 50 50 50 50 100 100 100 0 0 0 0 0 0 0 0
...Lionhead Range...
Date Sunday 09/20/26 Monday 09/21/26
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 SC BK BK BK SC SC SC FW CL CL CL
Cloud Cover (%) 80 85 80 90 80 50 40 55 60 55 50 45 50 20 5 5 5
Temperature 49 44 42 41 39 41 50 55 55 45 41 38 35 39 56 62 61
Min/Max Temp 36 57 33 63
Wind Dir W N N N NE N NW W W S SE E E E SW SW SW
Wind (mph) 1 1 1 0 0 1 2 2 0 0 0 1 1 2 1 3 2
Wind Gust (mph)
Precip Prob (%) 50 40 20 10 5 0 5 5 5 0 0 0 0 0 0 0 0
Precip Type R R R
6 Hour QPF 0.05 0.01 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.06 0.00 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.8 10.7 10.5 10.4 10.3 10.3 10.5 11.1 11.4 11.3 11.0 10.8 10.6 10.5 10.6 11.4 11.4
Snow Density (%) 0 100 100 100 100 100 100 0 0 0 0 0 0 0 0 0 0
...Tobacco Root Mountains...
Date Sunday 09/20/26 Monday 09/21/26
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 SC FW FW FW FW FW CL CL CL CL
Cloud Cover (%) 80 75 70 60 55 45 40 45 20 20 20 20 20 5 0 5 5
Temperature 44 42 42 41 40 42 48 52 52 45 43 42 41 45 54 59 58
Min/Max Temp 38 53 40 59
Wind Dir N N N N NW W N N NE S SW SW SW SW SW W NW
Wind (mph) 8 4 2 2 2 3 5 4 3 3 4 4 4 4 5 5 3
Wind Gust (mph)
Precip Prob (%) 30 10 10 5 0 0 5 5 0 0 0 0 0 0 0 0 0
Precip Type R R
6 Hour QPF 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.02 0.00 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.6 10.5 10.3 10.3 10.1 10.1 10.4 10.8 11.0 10.6 10.5 10.4 10.3 10.1 10.3 11.1 11.2
Snow Density (%) 100 100 50 50 50 100 100 100 0 0 0 0 0 0 0 0 0
...Snowcrest/Gravelly/Ruby/Blacktail Ranges...
Date Sunday 09/20/26 Monday 09/21/26
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 BK SC SC SC FW FW FW FW FW CL CL FW
Cloud Cover (%) 80 80 70 70 65 55 40 35 30 20 25 20 20 5 0 5 10
Temperature 47 44 43 42 40 41 49 54 54 46 43 41 40 43 56 61 61
Min/Max Temp 39 55 38 62
Wind Dir N N N NW NW NW NW NW N E SE S S S SW SW W
Wind (mph) 8 6 4 3 3 3 4 6 4 4 4 4 4 4 4 5 5
Wind Gust (mph)
Precip Prob (%) 40 20 10 5 0 0 0 5 0 0 0 0 0 0 0 0 0
Precip Type R R R
6 Hour QPF 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.04 0.00 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.7 10.6 10.5 10.3 10.2 10.1 10.4 10.9 11.1 10.8 10.6 10.5 10.4 10.2 10.5 11.3 11.4
Snow Density (%) 100 100 100 100 50 100 100 0 0 0 0 0 0 0 0 0 0
...Centennial Mountains...
Date Sunday 09/20/26 Monday 09/21/26
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 OV OV BK SC BK BK SC SC SC SC FW CL CL FW
Cloud Cover (%) 80 75 70 75 70 55 30 55 50 35 35 35 30 15 5 5 5
Temperature 47 44 44 42 40 41 48 54 54 46 44 41 39 41 55 60 59
Min/Max Temp 39 55 37 61
Wind Dir N N N N N N NW W NW NE NE NE NE NE S SW SW
Wind (mph) 4 5 4 4 4 4 4 5 3 3 2 3 4 4 4 5 5
Wind Gust (mph)
Precip Prob (%) 40 20 20 5 5 0 5 5 5 0 0 0 0 0 0 0 0
Precip Type R R R
6 Hour QPF 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.04 0.00 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.8 10.7 10.6 10.4 10.3 10.2 10.5 11.1 11.3 11.1 10.9 10.6 10.4 10.3 10.6 11.4 11.5
Snow Density (%) 100 100 100 100 100 100 100 0 0 0 0 0 0 0 0 0 0
...Anaconda/Highland Ranges...
Date Sunday 09/20/26 Monday 09/21/26
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 SC SC SC FW FW FW FW FW FW FW CL CL CL CL
Cloud Cover (%) 75 55 35 40 45 35 20 15 15 15 10 10 15 5 0 5 5
Temperature 47 44 42 41 39 41 51 57 57 47 45 43 41 43 56 62 61
Min/Max Temp 38 58 40 63
Wind Dir NE NE NE N N SE S S N NE E SE S S SW SW W
Wind (mph) 5 4 3 2 2 2 3 4 3 3 3 3 3 3 4 4 4
Wind Gust (mph)
Precip Prob (%) 20 5 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 MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.7 10.4 10.3 10.1 9.9 9.8 10.2 10.8 11.0 10.8 10.6 10.4 10.3 10.0 10.2 10.9 11.1
Snow Density (%) 100 100 100 100 100 100 0 0 0 0 0 0 0 0 0 0 0
...Pioneer Mountains...
Date Sunday 09/20/26 Monday 09/21/26
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 SC SC FW FW SC FW FW FW FW CL CL FW FW
Cloud Cover (%) 75 75 50 50 50 45 20 25 25 20 15 10 10 0 0 5 5
Temperature 46 44 42 40 38 40 51 56 56 47 44 41 40 43 57 61 60
Min/Max Temp 37 57 39 62
Wind Dir N NE N NE NW SW E NE E SE S SW SW SW SW SW W
Wind (mph) 5 3 2 2 2 2 3 5 3 3 3 3 3 3 4 5 4
Wind Gust (mph)
Precip Prob (%) 30 5 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type R
6 Hour QPF 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.02 0.00 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.7 10.5 10.3 10.2 10.0 10.0 10.3 10.9 11.2 11.0 10.8 10.5 10.2 9.9 10.4 11.2 11.3
Snow Density (%) 100 100 100 100 100 100 100 0 0 0 0 0 0 0 0 0 0
...Beaverhead/Tendoy Mountains...
Date Sunday 09/20/26 Monday 09/21/26
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 BK FW FW FW FW FW FW FW FW CL CL FW
Cloud Cover (%) 75 75 55 55 55 55 20 20 20 15 15 15 20 5 0 5 5
Temperature 47 43 41 40 39 41 49 55 55 46 43 41 40 44 56 61 60
Min/Max Temp 37 56 38 61
Wind Dir N N N N NW N N N NE S S S SW S SW W W
Wind (mph) 5 5 4 3 3 3 4 5 3 3 4 3 3 4 4 5 4
Wind Gust (mph)
Precip Prob (%) 50 10 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type R R
6 Hour QPF 0.03 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.03 0.00 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.8 10.7 10.5 10.3 10.1 10.0 10.3 10.9 11.1 10.9 10.8 10.5 10.3 10.1 10.5 11.1 11.2
Snow Density (%) 100 100 100 100 100 100 100 0 0 0 0 0 0 0 0 0 0
...Absoraka-Beartooth/Cooke City Mountains...
Date Sunday 09/20/26 Monday 09/21/26
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 BK SC SC SC BK FW CL FW FW
Cloud Cover (%) 90 90 90 90 95 90 85 80 70 40 30 45 65 25 5 20 20
Temperature 41 38 38 37 36 37 43 46 46 39 36 34 33 38 51 55 53
Min/Max Temp 34 48 32 56
Wind Dir N N N N NW N N N N NE S S S SW SW W W
Wind (mph) 5 5 3 2 2 3 4 5 4 3 3 3 3 3 3 5 4
Wind Gust (mph)
Precip Prob (%) 70 40 50 40 50 20 10 30 5 0 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.09 0.04 0.02 0.01 0.00 0.00 0.00 0.00
12 Hour QPF 0.13 0.03 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.7 10.4 10.2 10.1 10.2 10.4 10.9 11.2 11.3 11.1 10.9 10.8 10.7 10.7 11.1 11.6 11.7
Snow Density (%) 50 33 33 33 33 33 50 50 50 100 100 100 100 100 100 0 0
...Absoraka Mountains Above 6000ft Northeast Facing...
Date Sunday 09/20/26 Monday 09/21/26
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 BK SC SC SC SC FW FW FW FW
Cloud Cover (%) 90 95 90 95 95 90 90 80 70 45 30 30 50 15 5 20 15
Temperature 42 40 40 40 39 40 44 47 47 42 41 39 38 42 53 56 54
Min/Max Temp 37 48 37 56
Wind Dir N N N NW NW NW N N NE SW SW SW SW SW NW N NE
Wind (mph) 6 6 3 3 3 4 5 6 4 4 5 6 6 5 4 6 5
Wind Gust (mph) 25
Precip Prob (%) 70 60 60 80 60 40 20 20 5 0 0 0 0 0 5 5 0
Precip Type
6 Hour QPF 0.16 0.14 0.06 0.02 0.00 0.00 0.00 0.00
12 Hour QPF 0.30 0.08 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
6 Hour Snow 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0
12 Hour Snow 0.2 0.0 0.0 0.0
Low End Snow MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.5 10.3 10.3 10.3 10.3 10.5 10.8 11.0 11.1 11.0 10.9 10.8 10.7 10.7 11.1 11.6 11.7
Snow Density (%) 50 33 33 33 33 50 50 50 50 100 100 100 100 100 100 0 0
...Absoraka Mountains Above 6000ft West Facing...
Date Sunday 09/20/26 Monday 09/21/26
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 BK BK SC SC SC SC FW CL FW FW
Cloud Cover (%) 85 85 85 90 90 70 70 70 60 45 40 45 50 20 5 15 15
Temperature 45 43 41 40 39 40 47 51 51 44 41 38 37 41 54 59 58
Min/Max Temp 37 53 36 60
Wind Dir N N N NW NW NW NW NW N S S S S S SW W W
Wind (mph) 4 4 2 2 2 2 3 5 3 2 3 3 3 3 3 5 4
Wind Gust (mph) 24 21
Precip Prob (%) 60 40 30 20 10 10 5 10 5 0 0 0 0 0 0 0 0
Precip Type R R R R
6 Hour QPF 0.07 0.03 0.01 0.01 0.00 0.00 0.00 0.00
12 Hour QPF 0.10 0.02 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.7 10.5 10.4 10.3 10.2 10.3 10.7 11.1 11.2 11.0 10.9 10.8 10.7 10.6 10.9 11.5 11.6
Snow Density (%) 100 50 50 50 50 50 100 100 100 100 100 100 100 0 0 0 0
...Crazy Mountains...
Date Sunday 09/20/26 Monday 09/21/26
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 BK BK BK BK OV FW CL FW FW
Cloud Cover (%) 90 90 90 95 95 80 75 80 65 55 55 55 70 15 5 5 5
Temperature 44 43 43 43 42 43 48 53 52 46 44 43 42 46 56 60 58
Min/Max Temp 40 54 40 60
Wind Dir N NE N N N NW N N E SE SW W W SW SW SW S
Wind (mph) 5 5 3 3 4 4 4 5 3 4 3 3 4 3 5 6 5
Wind Gust (mph)
Precip Prob (%) 70 50 50 60 30 20 10 20 5 0 0 0 0 0 5 5 0
Precip Type R R R R R R R
6 Hour QPF 0.12 0.05 0.02 0.01 0.00 0.00 0.00 0.00
12 Hour QPF 0.17 0.03 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
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 MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.5 10.4 10.3 10.5 10.6 10.4 10.7 11.0 11.1 11.0 10.7 10.4 10.4 10.4 10.5 11.1 11.2
Snow Density (%) 100 100 100 100 100 100 100 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