Avalanche Weather Guidance
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
660
FWUS45 KTFX 152201
AVGTFX
Avalanche Weather Guidance
National Weather Service Great Falls MT
400 PM MDT Tue Sep 15 2026
...Glacier National Park/Marias Pass...
Date Wednesday 09/16/26 Thursday 09/17/26
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 BK SC FW FW FW FW SC CL FW FW FW
Cloud Cover (%) 90 95 95 90 85 75 50 30 20 15 15 10 30 5 10 15 25
Temperature 43 41 40 39 38 39 43 49 50 41 39 37 38 44 58 61 58
Min/Max Temp 38 50 37 61
Wind Dir E E NE N N NE NE E SE S SW SW SW SW N NE NE
Wind (mph) 5 4 4 5 5 5 4 4 5 5 5 6 5 4 3 6 6
Wind Gust (mph)
Precip Prob (%) 60 60 50 30 20 20 5 0 0 0 0 0 0 0 0 0 5
Precip Type R R R R S S R
6 Hour QPF 0.09 0.03 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.12 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) 8.6 8.5 8.4 8.2 7.9 7.8 8.1 8.7 9.0 8.8 9.0 9.1 9.3 9.5 9.9 10.2 10.6
Snow Density (%) 50 50 50 33 33 33 50 100 0 0 0 0 0 0 0 0 0
...Bob Marshall/Scapegoat Wilderness...
Date Wednesday 09/16/26 Thursday 09/17/26
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 BK BK SC SC SC FW FW BK FW FW FW OV
Cloud Cover (%) 75 75 70 65 70 65 55 50 35 35 25 20 50 15 10 20 80
Temperature 48 43 41 39 38 39 46 51 50 42 40 39 39 46 61 65 60
Min/Max Temp 37 52 38 65
Wind Dir E NE NE N NE NE NE E E SE S SW SW SW SE E E
Wind (mph) 5 5 4 3 4 4 4 5 5 4 4 4 4 3 3 6 5
Wind Gust (mph)
Precip Prob (%) 20 20 10 10 20 20 10 0 0 0 0 0 0 0 0 0 70
Precip Type R R R R 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 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) 9.2 9.1 9.2 9.0 8.9 8.7 9.0 9.6 9.8 9.8 10.4 10.8 10.9 11.0 11.4 11.7 11.9
Snow Density (%) 100 100 100 100 50 50 100 0 0 0 0 0 0 0 0 0 0
...Nevada Mountains...
Date Wednesday 09/16/26 Thursday 09/17/26
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 BK BK SC SC FW FW FW SC BK FW FW FW OV
Cloud Cover (%) 55 60 35 45 65 55 40 35 15 20 15 30 65 25 10 20 85
Temperature 54 47 43 41 39 40 47 53 53 44 41 40 40 45 60 67 64
Min/Max Temp 39 54 40 67
Wind Dir NE NE NE N N NE NE NE NE NE NE S S S SE E NE
Wind (mph) 8 10 8 6 5 8 6 6 6 5 3 3 3 3 4 5 5
Wind Gust (mph)
Precip Prob (%) 5 5 5 5 5 10 5 0 0 0 0 0 0 0 5 5 80
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 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) 9.6 9.6 9.6 9.5 9.3 9.3 9.3 9.6 10.2 10.7 11.2 11.4 11.7 11.9 11.9 11.9 12.3
Snow Density (%) 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0 0
...Elkhorn/Boulder Mountains...
Date Wednesday 09/16/26 Thursday 09/17/26
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 BK BK SC BK SC FW FW FW FW SC SC SC SC FW SC OV
Cloud Cover (%) 30 50 55 40 65 35 20 15 10 10 30 45 50 35 20 30 80
Temperature 56 46 42 39 37 40 50 55 56 45 42 40 40 45 60 66 64
Min/Max Temp 36 57 39 67
Wind Dir E N N N N N NE NE NE NE SE S S S SE SE SE
Wind (mph) 6 10 9 8 6 6 6 6 6 5 3 4 4 5 6 8 6
Wind Gust (mph) 27 28 27 24
Precip Prob (%) 0 5 0 5 5 5 0 0 0 0 0 0 5 5 10 10 70
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) 9.8 9.7 9.7 9.7 9.5 9.4 9.6 10.1 10.7 11.2 11.7 11.9 12.1 12.3 12.3 12.5 12.6
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Big Belt Mountains...
Date Wednesday 09/16/26 Thursday 09/17/26
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 BK SC SC BK SC SC FW FW FW FW SC OV SC FW FW OV
Cloud Cover (%) 35 60 50 45 55 45 30 20 10 10 25 40 70 30 15 20 70
Temperature 57 48 44 41 39 41 50 57 56 47 43 41 41 45 60 68 66
Min/Max Temp 38 57 40 68
Wind Dir NE NE NE N NW N N N NE E SE SE SE SE S S E
Wind (mph) 6 9 8 5 5 5 6 5 6 6 6 6 6 5 4 4 5
Wind Gust (mph) 28 29 24 24
Precip Prob (%) 0 0 0 0 5 5 0 0 0 0 0 0 0 0 0 0 60
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 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) 9.6 9.6 9.7 9.6 9.4 9.4 9.5 9.7 10.2 10.8 11.5 11.7 12.0 12.1 12.3 12.2 12.5
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Little Belt Mountains...
Date Wednesday 09/16/26 Thursday 09/17/26
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 BK BK SC BK SC SC FW FW FW SC SC SC SC FW FW SC
Cloud Cover (%) 25 60 65 50 60 40 30 20 20 20 25 30 45 25 15 25 45
Temperature 55 46 42 39 38 42 51 57 55 44 41 41 42 49 63 68 65
Min/Max Temp 38 57 40 68
Wind Dir SE SE S SW NW NW N N E SE S S S S S SE E
Wind (mph) 10 8 5 2 2 4 6 8 6 8 9 8 8 6 5 6 8
Wind Gust (mph) 29 32 24 24 24 31 29 23 25 26
Precip Prob (%) 5 0 0 0 0 5 0 0 0 0 0 0 0 0 5 5 20
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) 9.6 9.6 9.6 9.6 9.5 9.4 9.6 10.0 10.2 10.4 11.3 11.6 11.8 12.0 12.2 12.3 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 09/16/26 Thursday 09/17/26
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 OV OV SC BK BK SC SC SC FW FW FW SC FW FW FW BK
Cloud Cover (%) 45 85 75 45 60 55 45 30 30 20 15 20 40 15 10 10 55
Temperature 56 49 46 42 40 41 49 55 54 46 44 42 42 48 60 66 64
Min/Max Temp 39 56 42 66
Wind Dir E SE SE W W NW NW N E SE SE S S S E E E
Wind (mph) 12 12 8 5 8 8 5 5 6 9 9 6 4 3 4 6 8
Wind Gust (mph)
Precip Prob (%) 5 5 5 5 5 5 5 0 0 0 0 0 0 0 0 0 30
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) 9.6 9.6 9.6 9.5 9.4 9.2 9.2 9.3 9.5 9.7 10.5 11.2 11.2 11.4 12.0 11.9 12.2
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Snowy/Judith Mountains...
Date Wednesday 09/16/26 Thursday 09/17/26
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 SC BK BK SC SC FW FW FW FW FW SC SC SC FW FW SC
Cloud Cover (%) 10 35 60 70 40 30 20 15 15 20 20 25 50 30 20 20 30
Temperature 56 48 45 42 39 43 52 58 57 46 42 42 42 49 62 68 66
Min/Max Temp 38 59 41 68
Wind Dir SE SE SE S NW NW NW N NE SE SE S S SE SE SE SE
Wind (mph) 12 13 10 3 5 9 9 8 6 8 9 10 10 9 9 9 9
Wind Gust (mph) 32 37 35 26 27
Precip Prob (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 5 10
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) 9.2 9.3 9.6 9.6 9.5 9.5 9.6 9.7 10.0 10.3 11.2 11.8 12.0 12.0 12.3 12.3 12.6
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Bears Paw Mountains...
Date Wednesday 09/16/26 Thursday 09/17/26
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 SC FW FW FW FW SC FW FW FW FW
Cloud Cover (%) 80 80 85 70 65 50 25 40 25 25 15 25 40 10 5 10 10
Temperature 52 46 44 42 40 44 52 57 54 45 42 41 41 47 59 64 62
Min/Max Temp 39 57 41 64
Wind Dir E E E E NE N N N NE SE SE SE SE SE SE SE SE
Wind (mph) 11 13 11 8 5 4 5 5 3 5 8 10 10 11 12 10 9
Wind Gust (mph)
Precip Prob (%) 5 10 20 10 5 5 0 0 0 0 0 0 0 0 0 0 5
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) 8.7 9.3 9.4 9.4 9.3 9.0 8.7 8.6 8.8 9.0 9.3 9.9 10.3 10.5 10.9 11.3 11.6
Snow Density (%) 0 0 0 0 0 0 100 0 0 0 0 0 0 0 0 0 0
...Castle/Crazy Mountains...
Date Wednesday 09/16/26 Thursday 09/17/26
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 SC BK SC SC FW FW FW FW FW SC SC OV SC FW SC SC
Cloud Cover (%) 15 40 50 40 35 10 5 5 10 15 40 50 80 45 25 40 45
Temperature 56 46 42 39 37 42 54 61 58 47 42 40 39 44 60 67 64
Min/Max Temp 37 62 39 67
Wind Dir SE E E W W W NW N E E E E E SE S S SE
Wind (mph) 11 12 10 4 4 4 4 6 11 13 10 6 5 4 5 8 9
Wind Gust (mph) 29 33 34 29
Precip Prob (%) 0 0 0 0 0 0 0 0 0 0 0 0 5 5 10 10 20
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 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 9.6 9.5 9.4 9.5 9.7 10.2 10.7 11.2 11.9 12.1 12.3 12.4 12.5 12.6 12.8
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Bridger Range...
Date Wednesday 09/16/26 Thursday 09/17/26
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 SC BK SC SC FW CL FW FW FW SC SC OV BK SC SC BK
Cloud Cover (%) 20 35 55 45 30 10 5 5 10 15 35 45 85 60 25 40 55
Temperature 57 47 44 40 38 41 53 62 60 49 45 42 42 45 60 68 64
Min/Max Temp 37 62 41 68
Wind Dir SE SE SE S W NW N N E E SE SE SE SE S S SE
Wind (mph) 9 10 6 3 2 3 4 4 8 13 11 9 6 4 3 4 6
Wind Gust (mph) 31 35 32 26
Precip Prob (%) 0 0 0 0 0 0 0 0 0 0 0 0 5 5 20 20 30
Precip Type R 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 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 9.6 9.4 9.3 9.3 9.6 10.3 11.1 11.6 12.1 12.4 12.5 12.6 12.6 12.7 12.9
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 09/16/26 Thursday 09/17/26
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 CL FW SC FW FW FW CL CL FW FW BK OV OV BK OV OV BK
Cloud Cover (%) 5 15 25 20 15 5 5 5 15 25 55 75 75 60 70 70 60
Temperature 54 44 42 40 38 43 55 61 59 48 45 44 44 47 59 62 58
Min/Max Temp 37 61 42 63
Wind Dir S S S S SW SW W W NE E E SE SE SE S S S
Wind (mph) 10 6 5 3 2 3 4 6 4 4 4 4 5 5 8 11 9
Wind Gust (mph) 27 26 29 27
Precip Prob (%) 0 0 0 0 0 0 0 0 0 0 5 10 40 40 60 60 40
Precip Type R R R R R R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02
12 Hour QPF 0.00 0.00 0.00 0.02
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 9.5 9.5 9.3 9.4 9.6 10.4 11.3 12.0 12.2 12.6 12.7 12.8 12.8 12.7 13.0 12.8
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 09/16/26 Thursday 09/17/26
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 CL FW SC FW FW CL CL FW FW FW BK OV OV BK BK BK BK
Cloud Cover (%) 5 15 35 20 15 5 0 5 15 20 55 75 70 55 65 65 55
Temperature 57 45 41 39 37 43 55 61 58 47 43 42 42 47 61 65 61
Min/Max Temp 37 61 41 65
Wind Dir S S S S SW W NW N NE E SE SE S S S S S
Wind (mph) 9 8 5 3 2 2 5 6 6 5 5 4 5 6 6 9 9
Wind Gust (mph) 25
Precip Prob (%) 0 0 0 0 0 0 0 0 0 0 0 0 30 30 50 50 30
Precip Type R R R R R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01
12 Hour QPF 0.00 0.00 0.00 0.01
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) 9.8 9.5 9.4 9.2 9.1 9.4 10.2 11.2 11.8 12.2 12.5 12.7 12.7 12.8 12.7 13.0 12.8
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Lionhead Range...
Date Wednesday 09/16/26 Thursday 09/17/26
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 CL FW FW FW FW FW CL FW SC SC BK OV OV OV OV OV OV
Cloud Cover (%) 0 20 10 10 10 10 5 10 30 45 60 75 85 70 85 85 80
Temperature 58 45 41 38 36 44 62 67 65 52 47 44 43 47 62 65 60
Min/Max Temp 35 68 41 66
Wind Dir SW S S S SE NE SW SW S E E E E E S SW S
Wind (mph) 6 2 3 2 2 2 2 5 1 3 4 3 3 3 4 8 4
Wind Gust (mph)
Precip Prob (%) 0 0 0 0 0 0 5 5 5 5 30 20 60 60 80 80 70
Precip Type R R R R R R R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.05
12 Hour QPF 0.00 0.00 0.01 0.06
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) 9.8 10.0 10.1 10.0 10.1 10.4 11.2 11.8 12.4 12.5 13.0 12.9 13.1 13.1 12.9 13.0 12.8
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Tobacco Root Mountains...
Date Wednesday 09/16/26 Thursday 09/17/26
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 BK BK BK FW FW FW FW FW FW BK BK OV BK BK BK BK
Cloud Cover (%) 25 65 65 65 20 10 10 5 15 20 60 60 70 50 60 60 65
Temperature 56 46 43 40 37 41 50 56 55 46 44 42 42 46 58 63 60
Min/Max Temp 37 56 41 64
Wind Dir S E S W SW NE NE NE NE NE NE SE S SW SW S S
Wind (mph) 6 6 6 5 3 4 8 9 9 9 5 4 3 3 5 8 9
Wind Gust (mph) 26 25 28
Precip Prob (%) 0 0 0 0 0 0 0 0 0 0 10 0 30 30 40 40 50
Precip Type R R 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 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) 9.8 9.7 9.6 9.4 9.2 9.2 9.9 10.7 11.5 11.8 12.3 12.4 12.5 12.6 12.5 12.8 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 Wednesday 09/16/26 Thursday 09/17/26
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 SC SC SC FW CL CL CL FW SC BK BK OV BK OV OV BK
Cloud Cover (%) 5 25 35 25 10 5 5 5 15 35 55 70 75 70 70 70 65
Temperature 58 48 44 41 39 43 57 64 62 50 47 45 45 48 61 65 61
Min/Max Temp 38 64 43 65
Wind Dir S S S S W N NE E NE NE E E SE SE S S S
Wind (mph) 13 11 6 4 3 4 5 8 8 6 4 4 4 5 11 17 14
Wind Gust (mph) 28 34 32
Precip Prob (%) 0 0 0 0 0 0 0 0 0 0 10 0 50 50 60 60 40
Precip Type R R R R R R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.02
12 Hour QPF 0.00 0.00 0.01 0.03
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 9.5 9.3 9.4 9.5 10.2 11.2 11.8 12.2 12.6 12.6 12.8 12.8 12.7 12.8 12.7
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Centennial Mountains...
Date Wednesday 09/16/26 Thursday 09/17/26
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 CL FW FW FW FW CL CL FW SC SC BK OV OV OV OV OV OV
Cloud Cover (%) 0 10 10 10 10 5 5 5 25 40 60 75 80 80 85 85 80
Temperature 56 47 44 42 41 44 59 64 63 53 50 48 47 49 59 62 59
Min/Max Temp 39 65 45 62
Wind Dir S S S S N NE E S E NE NE NE E E S S S
Wind (mph) 11 4 6 6 6 6 4 8 5 8 10 9 8 9 11 13 10
Wind Gust (mph)
Precip Prob (%) 0 0 0 0 0 0 5 5 5 0 30 20 70 70 80 80 70
Precip Type R R R R R R R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.02 0.02 0.06
12 Hour QPF 0.00 0.00 0.02 0.08
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) 9.6 9.6 9.8 9.9 10.0 10.1 10.8 11.5 12.1 12.5 12.8 12.7 13.0 12.9 12.9 12.9 12.7
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Anaconda/Highland Ranges...
Date Wednesday 09/16/26 Thursday 09/17/26
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 OV BK SC SC FW CL FW FW FW SC SC BK SC BK BK OV
Cloud Cover (%) 45 85 70 45 45 5 0 5 10 15 40 45 60 40 55 60 85
Temperature 57 48 44 40 37 41 54 61 60 49 45 43 42 45 59 66 61
Min/Max Temp 37 62 41 66
Wind Dir W N N N N NE E E NE NE NE E SE SE S S S
Wind (mph) 5 9 8 5 4 4 4 5 6 10 8 6 5 4 5 6 6
Wind Gust (mph) 24 28
Precip Prob (%) 5 5 0 0 0 0 0 0 0 0 0 0 5 5 50 50 90
Precip Type R R R T R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02
12 Hour QPF 0.00 0.00 0.00 0.02
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 9.6 9.5 9.4 9.3 9.6 10.3 11.2 11.4 12.0 12.1 12.2 12.2 12.4 12.4 12.4
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Pioneer Mountains...
Date Wednesday 09/16/26 Thursday 09/17/26
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 OV OV SC SC FW CL FW FW FW BK BK BK SC BK BK OV
Cloud Cover (%) 25 80 70 45 30 5 5 5 10 10 55 60 65 50 70 70 80
Temperature 57 48 43 39 37 41 54 61 60 49 44 42 42 45 60 64 61
Min/Max Temp 36 61 41 65
Wind Dir W NE NE S SE E E SE E E E E SE SE SE S S
Wind (mph) 5 6 5 3 3 4 5 8 6 6 5 4 4 5 8 10 8
Wind Gust (mph) 24 24 25 29
Precip Prob (%) 0 0 0 0 0 0 0 0 0 0 0 5 20 20 50 50 70
Precip Type R R R R R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01
12 Hour QPF 0.00 0.00 0.00 0.01
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) 9.8 9.8 9.7 9.5 9.3 9.2 9.8 10.6 11.4 11.6 12.2 12.2 12.3 12.4 12.6 12.6 12.6
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Beaverhead/Tendoy Mountains...
Date Wednesday 09/16/26 Thursday 09/17/26
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 BK SC SC FW FW CL FW FW SC BK BK BK BK OV OV OV
Cloud Cover (%) 20 50 50 30 15 5 5 5 10 30 60 70 70 60 75 75 75
Temperature 57 48 43 40 38 42 56 63 62 51 46 44 43 47 60 63 60
Min/Max Temp 37 64 42 64
Wind Dir SW SE SW SW W NE E E E NE NE E SE SE SE S S
Wind (mph) 9 10 6 4 4 4 6 8 9 8 6 6 6 6 11 13 11
Wind Gust (mph) 26 31 34 29
Precip Prob (%) 0 5 0 0 0 0 0 0 0 0 5 0 40 40 70 70 60
Precip Type R R R R R R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.02
12 Hour QPF 0.00 0.00 0.01 0.03
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) 9.8 9.8 9.5 9.4 9.3 9.3 10.0 10.9 11.6 12.0 12.4 12.4 12.5 12.6 12.6 12.5 12.5
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 09/16/26 Thursday 09/17/26
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 CL FW FW FW FW CL FW SC SC SC OV OV OV SC OV OV BK
Cloud Cover (%) 5 10 15 10 10 5 10 30 40 40 70 80 75 45 75 75 65
Temperature 52 41 38 36 36 44 57 60 56 43 41 40 41 46 59 60 55
Min/Max Temp 35 60 39 62
Wind Dir SW SW S SW SW S SW W E E E SE SE S SW SW S
Wind (mph) 13 5 6 5 4 3 8 8 6 8 5 5 5 5 8 9 8
Wind Gust (mph)
Precip Prob (%) 0 0 0 0 0 0 0 0 5 0 5 0 20 20 60 60 50
Precip Type
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.07
12 Hour QPF 0.00 0.00 0.00 0.07
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 9.9 10.0 9.9 9.7 9.9 10.9 11.7 12.1 12.5 12.7 12.8 12.9 12.9 13.1 13.1 13.0
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 09/16/26 Thursday 09/17/26
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 CL FW FW FW FW FW CL FW SC SC BK OV OV BK BK BK BK
Cloud Cover (%) 5 15 20 15 15 5 5 15 25 40 65 75 75 50 70 70 65
Temperature 52 42 40 39 39 45 53 56 52 43 41 41 42 49 59 61 57
Min/Max Temp 38 57 40 62
Wind Dir S SW SW SW SW W NW NE E SE S S SW SW S S S
Wind (mph) 11 8 6 8 6 3 8 10 10 6 5 4 5 5 6 8 6
Wind Gust (mph) 29 29 25 36 40 33 21 24
Precip Prob (%) 0 0 0 0 0 0 0 0 0 0 0 0 10 10 50 50 30
Precip Type
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.03
12 Hour QPF 0.00 0.00 0.00 0.03
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 9.9 9.8 9.5 9.7 10.6 11.4 11.8 12.3 12.6 12.7 12.8 12.9 13.0 13.1 13.0
Snow Density (%) 100 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Absoraka Mountains Above 6000ft West Facing...
Date Wednesday 09/16/26 Thursday 09/17/26
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 CL FW FW FW FW FW FW FW SC SC BK OV OV BK OV OV BK
Cloud Cover (%) 5 15 20 15 10 5 5 20 35 35 60 75 75 55 75 75 65
Temperature 56 45 41 39 38 44 58 63 60 48 44 43 43 47 61 64 60
Min/Max Temp 37 63 41 65
Wind Dir SW S S SW SW SW W W NE E E SE SE SE S SW S
Wind (mph) 10 5 5 4 3 2 5 8 5 5 4 4 4 4 6 9 8
Wind Gust (mph) 29 28 27 28 26 29 27
Precip Prob (%) 0 0 0 0 0 0 0 0 0 0 5 5 30 30 60 60 40
Precip Type R R R R R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04
12 Hour QPF 0.00 0.00 0.00 0.04
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 9.9 9.7 9.7 9.9 10.8 11.6 12.1 12.4 12.7 12.8 12.9 12.9 12.9 13.1 12.9
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...Crazy Mountains...
Date Wednesday 09/16/26 Thursday 09/17/26
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 SC SC FW CL CL FW FW FW SC SC OV BK SC SC SC
Cloud Cover (%) 10 20 40 30 20 5 0 10 15 20 35 50 80 60 30 50 45
Temperature 53 44 41 38 38 44 53 58 56 45 41 40 40 46 59 64 62
Min/Max Temp 38 59 39 64
Wind Dir SE E SE W W NW NW E E E SE SE S S SE SE SE
Wind (mph) 13 13 10 5 4 3 5 9 13 13 9 5 4 3 5 9 9
Wind Gust (mph) 31 31 34 40 29
Precip Prob (%) 0 0 0 0 0 0 0 0 0 0 0 0 5 5 20 20 20
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) 9.6 9.6 9.5 9.4 9.2 9.3 9.8 10.6 11.0 11.6 12.1 12.4 12.5 12.7 12.7 12.7 12.8
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