Avalanche Weather Guidance
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
999
FWUS45 KTFX 132201
AVGTFX
Avalanche Weather Guidance
National Weather Service Great Falls MT
400 PM MDT Sun Sep 13 2026
...Glacier National Park/Marias Pass...
Date Monday 09/14/26 Tuesday 09/15/26
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 OV OV OV OV BK OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 60 60 65 70 85 85 75 65 75 75 70 85 100 90 90 90 85
Temperature 44 40 37 36 36 37 39 43 44 41 39 38 37 38 42 44 44
Min/Max Temp 35 45 36 45
Wind Dir W SW SW SW W W W W W SW SW S S SE E E E
Wind (mph) 12 17 20 23 26 20 14 13 10 9 6 5 4 4 5 6 5
Wind Gust (mph) 35 46 54 63 46 37
Precip Prob (%) 30 10 10 40 70 70 20 40 20 50 20 5 20 20 60 60 70
Precip Type R R S S R S R R R R R R R R R
6 Hour QPF 0.01 0.03 0.05 0.01 0.03 0.00 0.00 0.02
12 Hour QPF 0.04 0.06 0.03 0.02
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
6 Hour Snow 0.0 0.1 0.1 0.0 0.0 0.0 0.0 0.0
12 Hour Snow 0.1 0.1 0.0 0.0
Low End Snow MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 7.7 7.2 6.6 6.4 6.4 7.0 7.7 8.3 8.6 8.4 8.1 8.0 7.8 7.7 7.9 8.1 8.2
Snow Density (%) 33 25 20 16 16 25 25 50 50 50 33 33 33 33 33 33 33
...Bob Marshall/Scapegoat Wilderness...
Date Monday 09/14/26 Tuesday 09/15/26
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 BK OV BK BK BK BK BK SC BK OV OV OV OV OV
Cloud Cover (%) 35 55 45 60 85 70 65 60 60 50 40 50 75 75 70 75 80
Temperature 49 42 39 36 36 37 40 44 45 41 38 36 35 38 47 49 49
Min/Max Temp 35 46 34 51
Wind Dir W W W W W W W W W W SW SW S S SE E NE
Wind (mph) 10 9 11 16 23 20 17 13 9 6 4 3 3 3 4 5 5
Wind Gust (mph) 29 35 42 61 57 46 35 29
Precip Prob (%) 10 10 5 20 50 30 10 10 0 0 0 0 0 0 10 10 40
Precip Type R R S S S R R R R R
6 Hour QPF 0.00 0.01 0.01 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.01 0.01 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 7.4 6.8 6.5 6.5 7.0 7.7 8.2 8.4 8.2 8.1 7.9 7.7 7.6 8.0 8.5 8.7
Snow Density (%) 50 33 20 16 14 20 25 33 50 50 50 50 50 50 50 100 100
...Nevada Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 BK OV OV BK BK SC SC SC SC BK BK BK BK BK
Cloud Cover (%) 50 65 45 55 85 75 60 55 35 35 25 30 65 65 50 65 70
Temperature 52 45 43 40 38 38 41 45 47 43 40 38 37 39 50 54 54
Min/Max Temp 37 48 36 56
Wind Dir W W W W W W W W W W SW SW SW SE SE E NE
Wind (mph) 10 9 11 16 21 23 20 16 10 5 4 3 3 2 4 4 6
Wind Gust (mph) 37 48 49 42 35 27
Precip Prob (%) 30 40 10 20 30 20 5 5 0 0 0 0 0 0 0 0 10
Precip Type R R R S S R
6 Hour QPF 0.02 0.00 0.01 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.02 0.01 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) 9.3 7.9 7.0 6.7 6.6 7.1 7.7 8.2 8.4 8.2 8.0 7.8 7.7 7.6 8.3 8.8 9.1
Snow Density (%) 0 50 33 25 20 25 33 50 100 100 100 100 100 100 0 0 0
...Elkhorn/Boulder Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 BK OV SC SC SC FW SC SC SC SC BK BK
Cloud Cover (%) 55 75 60 60 55 60 70 45 30 25 20 30 50 40 40 50 60
Temperature 55 45 41 38 36 37 42 46 48 41 37 35 34 39 50 55 56
Min/Max Temp 35 48 33 57
Wind Dir NW NW W W W W W W NW NW SW S S SE SE SE NE
Wind (mph) 11 13 12 10 13 18 19 17 10 4 3 4 4 4 5 5 6
Wind Gust (mph) 31 37 39 27 35 41 41 39 28
Precip Prob (%) 30 50 40 10 5 10 5 5 0 0 0 0 0 0 0 0 0
Precip Type R R S
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) 10.2 8.9 7.4 6.9 6.7 7.1 7.9 8.4 8.6 8.3 8.1 7.8 7.6 7.7 8.6 9.2 9.5
Snow Density (%) 0 50 25 20 16 20 25 33 50 50 50 50 50 100 0 0 0
...Big Belt Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 BK OV BK BK SC SC SC SC SC BK SC BK BK
Cloud Cover (%) 60 75 75 60 65 80 70 65 35 40 30 35 40 50 45 50 60
Temperature 59 49 46 42 39 39 43 48 49 44 41 39 38 40 51 57 58
Min/Max Temp 38 50 37 59
Wind Dir NW NW W W SW SW W W W W S SE SE SE SE E NE
Wind (mph) 10 10 11 12 14 20 20 17 10 4 4 4 4 3 4 4 6
Wind Gust (mph) 29 33 33 32 41 49 44 37 29
Precip Prob (%) 40 60 60 20 10 20 20 10 0 0 0 0 0 0 0 0 5
Precip Type R R R S R S R R
6 Hour QPF 0.10 0.03 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 9.6 7.5 6.9 6.7 6.9 7.8 8.3 8.5 8.3 8.2 7.9 7.8 7.8 8.5 9.0 9.3
Snow Density (%) 0 0 50 25 20 25 33 50 100 100 100 100 100 100 0 0 0
...Little Belt Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 OV OV OV BK BK SC SC SC SC BK BK BK
Cloud Cover (%) 65 70 85 55 50 85 75 80 60 50 30 40 45 50 55 50 55
Temperature 60 48 44 40 37 37 40 45 46 43 39 37 36 39 50 55 57
Min/Max Temp 36 48 35 58
Wind Dir W NW NW W SW W W W NW W SW S S SE SE SE E
Wind (mph) 8 8 9 10 17 23 23 23 14 6 4 4 4 5 8 9 9
Wind Gust (mph) 25 29 31 43 48 48 51 43 26 25 26
Precip Prob (%) 60 60 80 40 10 70 50 60 10 5 0 0 0 0 5 5 10
Precip Type R R R S S S S R R
6 Hour QPF 0.11 0.08 0.07 0.02 0.00 0.00 0.00 0.00
12 Hour QPF 0.19 0.09 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 0.2 0.0 0.0 0.0 0.0 0.0
12 Hour Snow 0.0 0.2 0.0 0.0
Low End Snow MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 11.2 10.6 8.5 7.0 6.7 6.8 7.6 8.3 8.4 8.3 8.2 8.0 7.8 7.8 8.4 9.2 9.4
Snow Density (%) 0 0 50 25 20 20 25 33 50 50 50 50 50 100 100 0 0
...Highwood Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 SC SC OV OV OV BK BK SC SC BK BK BK BK OV
Cloud Cover (%) 65 85 80 45 35 70 75 80 65 55 40 50 60 55 65 60 70
Temperature 60 51 46 44 42 41 43 47 49 46 43 42 41 42 50 56 57
Min/Max Temp 40 50 40 58
Wind Dir W W W W W W W W NW W W S SE SE E E NE
Wind (mph) 9 13 13 14 25 29 29 28 18 9 6 4 4 5 6 8 10
Wind Gust (mph) 42 48 37
Precip Prob (%) 50 70 50 20 10 50 60 50 10 20 0 0 0 0 0 0 10
Precip Type R R R R R R R R R
6 Hour QPF 0.19 0.01 0.02 0.03 0.02 0.00 0.00 0.00
12 Hour QPF 0.20 0.05 0.02 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) 11.1 10.6 7.7 7.1 6.5 6.6 7.4 8.1 8.3 8.2 8.1 8.0 8.0 7.9 8.1 8.7 9.2
Snow Density (%) 0 0 100 50 33 25 33 50 100 100 100 100 100 100 100 0 0
...Snowy/Judith Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 BK OV BK SC BK BK OV BK SC SC SC SC SC SC SC
Cloud Cover (%) 10 20 65 80 60 40 60 55 75 55 35 40 45 25 40 45 50
Temperature 66 54 48 44 41 41 45 49 51 47 43 40 39 42 50 57 60
Min/Max Temp 40 53 38 60
Wind Dir SE W NW NW W W W NW NW NW W SW S SE SE SE SE
Wind (mph) 9 10 20 20 17 21 26 32 26 14 8 4 4 5 10 10 11
Wind Gust (mph) 46 50 42 44 50 56 52 41 28 28
Precip Prob (%) 5 5 20 60 20 10 10 10 10 10 0 0 0 0 0 0 5
Precip Type R R R R R R R
6 Hour QPF 0.00 0.02 0.01 0.01 0.00 0.00 0.00 0.00
12 Hour QPF 0.02 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) 11.1 10.9 9.7 7.9 6.8 6.7 7.4 8.1 8.3 8.2 7.9 7.8 7.8 7.9 8.3 8.9 9.3
Snow Density (%) 0 0 0 100 50 33 50 100 100 100 100 100 100 100 0 0 0
...Bears Paw Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 OV BK SC OV OV OV BK SC BK OV BK OV BK OV
Cloud Cover (%) 35 80 80 80 50 35 70 85 75 60 45 60 75 60 70 70 75
Temperature 61 52 47 44 42 43 45 49 48 45 41 39 38 42 50 56 54
Min/Max Temp 41 51 38 57
Wind Dir SE S NW W W W W NW NW NW NW NW N SE E SE E
Wind (mph) 11 6 12 17 18 20 23 25 20 11 5 2 2 3 6 9 9
Wind Gust (mph) 35 36 40 43 39 31 25
Precip Prob (%) 10 70 60 40 20 20 50 60 40 5 0 0 5 5 5 5 20
Precip Type R R R R R R R R R
6 Hour QPF 0.06 0.04 0.01 0.02 0.02 0.00 0.00 0.00
12 Hour QPF 0.10 0.03 0.02 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) 11.0 10.9 9.7 7.1 6.5 6.3 7.0 7.8 8.0 7.6 7.2 7.0 7.4 7.4 7.8 8.0 8.5
Snow Density (%) 0 0 0 100 50 33 50 100 100 100 100 100 100 100 100 100 100
...Castle/Crazy Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 OV BK BK BK OV BK SC SC SC SC SC FW SC SC SC
Cloud Cover (%) 35 30 80 65 55 70 70 60 40 35 30 35 45 25 40 35 40
Temperature 62 50 46 42 38 38 41 47 48 42 39 37 36 40 51 57 58
Min/Max Temp 37 48 35 59
Wind Dir SW NW W W SW SW W W W W SW S SE SE SE SE E
Wind (mph) 9 10 13 17 18 25 28 27 18 6 4 4 4 4 8 9 11
Wind Gust (mph) 29 41 52 59 62 58 51 27
Precip Prob (%) 10 20 60 40 20 30 10 10 0 0 0 0 0 0 0 0 0
Precip Type T T R S S S R R
6 Hour QPF 0.00 0.08 0.01 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.08 0.01 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) 11.0 10.6 8.9 7.3 6.8 6.9 7.8 8.4 8.6 8.3 8.1 7.8 7.6 7.7 8.7 9.4 9.7
Snow Density (%) 0 0 100 25 16 16 25 50 50 50 50 50 50 100 0 0 0
...Bridger Range...
Date Monday 09/14/26 Tuesday 09/15/26
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 OV OV BK BK BK SC FW SC SC SC SC FW SC SC SC
Cloud Cover (%) 25 25 90 70 50 55 65 50 25 30 30 30 35 20 30 25 40
Temperature 64 51 46 42 39 38 42 47 49 42 40 37 36 40 51 59 59
Min/Max Temp 37 50 35 60
Wind Dir SW NW NW W W SW W W NW NW SE SE SE SE SE SE E
Wind (mph) 10 11 12 11 11 18 21 19 11 3 2 3 4 4 4 4 6
Wind Gust (mph) 29 29 33 32 28 42 44 40 32
Precip Prob (%) 5 10 80 50 20 20 20 5 0 0 0 0 0 0 0 0 0
Precip Type R S S S R
6 Hour QPF 0.00 0.08 0.01 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.08 0.01 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 10.2 8.6 7.4 6.8 7.0 7.9 8.5 8.6 8.4 8.2 7.9 7.8 7.8 8.7 9.5 9.9
Snow Density (%) 0 0 50 25 20 20 25 50 50 50 50 50 100 100 0 0 0
...Madison Range/Spanish Peaks...
Date Monday 09/14/26 Tuesday 09/15/26
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 SC BK BK SC FW SC SC SC FW SC SC SC FW FW FW FW
Cloud Cover (%) 5 45 70 55 40 20 30 35 25 20 35 30 30 10 10 10 20
Temperature 57 48 44 38 35 35 41 47 47 39 36 35 34 38 51 57 55
Min/Max Temp 33 48 32 57
Wind Dir SW SW W W SW SW W W NW NE SE SE SE SE SW SW SW
Wind (mph) 21 13 11 9 9 13 14 13 8 3 4 5 6 6 9 10 9
Wind Gust (mph) 50 39 35 29 29 36 34 33 26 27
Precip Prob (%) 0 10 40 40 5 5 0 0 0 0 0 0 0 0 0 0 0
Precip Type S S
6 Hour QPF 0.00 0.05 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) 9.9 9.0 8.0 7.4 7.0 7.0 8.3 8.9 9.1 8.7 8.4 8.0 7.7 7.9 9.1 9.7 9.7
Snow Density (%) 0 100 33 14 12 12 20 33 50 33 33 50 50 50 100 0 0
...Gallatin Range/Hyalite Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 SC OV BK SC SC SC BK BK SC SC SC SC FW FW FW FW
Cloud Cover (%) 5 30 80 65 45 25 35 50 55 35 30 25 30 10 15 20 25
Temperature 61 50 44 39 36 35 42 48 48 40 37 35 34 38 53 59 57
Min/Max Temp 34 49 32 59
Wind Dir SW SW W W SW SW W W NW NW S S S S SE SW N
Wind (mph) 19 14 11 8 9 13 16 14 9 4 4 5 6 5 6 9 9
Wind Gust (mph) 43 37 29 26 28 34 35 32 27
Precip Prob (%) 0 5 60 50 10 5 0 0 0 0 0 0 0 0 0 0 0
Precip Type R R S
6 Hour QPF 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.09 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 9.2 8.6 7.5 7.0 7.1 8.3 8.9 9.0 8.7 8.4 8.0 7.7 7.9 9.2 9.9 10.0
Snow Density (%) 0 0 33 16 12 14 25 33 33 33 33 50 50 100 100 0 0
...Lionhead Range...
Date Monday 09/14/26 Tuesday 09/15/26
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 BK OV SC SC FW FW SC SC FW FW FW FW CL CL CL FW
Cloud Cover (%) 5 60 90 35 35 5 15 40 30 20 15 25 20 5 0 5 10
Temperature 60 49 46 40 34 36 46 51 51 42 38 35 31 39 56 60 59
Min/Max Temp 33 53 29 61
Wind Dir SW SW SW SW SW SW SW W W SW E E E E SW SW SW
Wind (mph) 17 8 17 17 13 14 13 11 5 2 2 2 2 2 8 10 6
Wind Gust (mph) 35 35
Precip Prob (%) 0 10 30 20 0 5 0 0 0 0 0 0 0 0 0 0 0
Precip Type S S
6 Hour QPF 0.00 0.03 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) 10.5 9.6 8.1 7.1 6.5 6.5 7.8 8.9 9.3 8.9 8.6 8.4 8.2 7.9 9.0 9.6 9.8
Snow Density (%) 0 0 100 33 25 20 33 100 0 100 100 100 100 100 0 0 0
...Tobacco Root Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 OV BK SC SC BK SC FW SC SC SC SC FW FW SC SC
Cloud Cover (%) 40 60 70 60 35 30 55 35 20 30 30 25 45 20 20 30 30
Temperature 58 47 42 38 35 36 41 45 47 40 37 36 34 38 49 55 56
Min/Max Temp 34 47 33 57
Wind Dir SW W W W W SW W W NW NE S S S S SW NW NE
Wind (mph) 14 10 9 9 14 19 18 13 8 4 4 4 4 4 5 6 6
Wind Gust (mph) 36 33 39 36 32 24
Precip Prob (%) 20 30 60 40 5 5 5 0 0 0 0 0 0 0 0 0 0
Precip Type T S S S
6 Hour QPF 0.02 0.03 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) 9.9 8.9 7.9 7.2 6.9 7.1 8.1 8.7 8.9 8.6 8.2 7.9 7.6 7.3 9.0 9.5 9.9
Snow Density (%) 0 100 25 14 12 14 20 33 50 50 50 50 50 50 100 0 0
...Snowcrest/Gravelly/Ruby/Blacktail Ranges...
Date Monday 09/14/26 Tuesday 09/15/26
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 SC FW FW SC SC SC FW FW FW FW
Cloud Cover (%) 10 45 50 50 25 15 20 30 10 20 35 25 35 10 10 10 25
Temperature 59 49 44 39 35 37 45 51 51 42 38 36 35 39 54 60 58
Min/Max Temp 34 52 33 60
Wind Dir SW W W W W SW W NW NW NE SE SE SE SE S S S
Wind (mph) 24 12 13 10 9 12 14 13 10 4 4 5 6 8 11 12 11
Wind Gust (mph) 47 34 31 32 28
Precip Prob (%) 0 5 30 10 0 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type S S
6 Hour QPF 0.00 0.01 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) 9.5 8.5 7.4 7.0 6.6 6.9 8.2 8.9 9.0 8.8 8.4 8.1 7.7 7.8 9.0 9.6 9.7
Snow Density (%) 0 0 33 20 16 16 33 50 100 100 50 100 100 100 0 0 0
...Centennial Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 SC BK SC FW FW FW SC SC FW FW SC FW FW CL CL FW
Cloud Cover (%) 5 50 60 35 25 5 15 45 30 15 20 30 20 5 0 5 15
Temperature 58 50 47 41 37 38 45 51 50 43 40 37 35 39 52 58 56
Min/Max Temp 35 52 33 58
Wind Dir SW SW W W W SW W W NW N NE E E E S S SW
Wind (mph) 25 11 14 12 9 11 12 12 8 4 4 4 5 5 11 13 11
Wind Gust (mph) 43 34
Precip Prob (%) 0 5 20 10 0 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type S S
6 Hour QPF 0.00 0.01 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) 9.6 8.9 7.5 6.9 6.5 6.7 8.2 9.0 9.3 8.9 8.6 8.3 8.1 8.0 8.9 9.4 9.6
Snow Density (%) 0 0 50 25 20 16 33 100 100 100 100 100 100 100 100 0 0
...Anaconda/Highland Ranges...
Date Monday 09/14/26 Tuesday 09/15/26
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 OV BK BK BK SC FW SC SC FW OV SC SC BK BK
Cloud Cover (%) 25 55 45 70 65 65 65 45 20 35 35 25 90 35 35 50 60
Temperature 54 43 39 37 35 36 39 45 47 40 36 35 33 37 49 56 57
Min/Max Temp 34 47 32 57
Wind Dir W NW W W W W W NW NW N NE E SE SE S SW NW
Wind (mph) 12 13 11 9 11 13 12 10 6 3 3 3 4 4 5 5 5
Wind Gust (mph) 31 33 29
Precip Prob (%) 10 10 20 20 20 20 5 0 0 0 0 0 0 0 0 0 0
Precip Type R R S S S S
6 Hour QPF 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.01 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 0.1 0.0 0.0 0.0 0.0 0.0
12 Hour Snow 0.0 0.1 0.0 0.0
Low End Snow MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 8.9 8.2 7.3 6.9 6.8 7.2 8.0 8.5 8.7 8.4 8.1 7.9 7.7 7.4 8.6 9.1 9.5
Snow Density (%) 100 33 20 14 14 16 20 33 50 50 50 50 50 100 0 0 0
...Pioneer Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 BK SC BK BK SC FW SC SC FW OV SC SC SC SC
Cloud Cover (%) 10 50 40 55 50 65 65 40 20 25 25 20 85 30 30 40 50
Temperature 56 44 39 35 33 34 39 45 47 39 36 34 32 37 51 57 58
Min/Max Temp 32 47 31 58
Wind Dir W W W W W W W W NW NW S S S S S SW NW
Wind (mph) 14 12 12 11 13 16 13 12 8 4 3 3 4 4 6 8 5
Wind Gust (mph) 36 32 32 29 40 42 31 26 23
Precip Prob (%) 5 5 20 20 5 5 0 0 0 0 0 0 0 0 0 0 0
Precip Type S S S
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 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) 9.0 8.0 7.3 6.9 6.7 7.1 8.1 8.6 8.9 8.5 8.2 7.8 7.5 7.4 8.9 9.4 9.5
Snow Density (%) 100 33 16 12 12 14 20 33 50 50 50 50 50 50 100 0 0
...Beaverhead/Tendoy Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 SC SC SC FW FW SC SC FW SC FW FW FW SC
Cloud Cover (%) 5 40 25 40 30 35 30 20 20 25 35 20 45 15 15 25 35
Temperature 55 45 40 36 33 36 43 49 49 41 37 34 33 38 52 57 58
Min/Max Temp 32 50 31 59
Wind Dir SW W W W W W W NW NW N SE SE S SE S SW SW
Wind (mph) 19 13 13 11 11 11 11 11 8 4 4 5 8 8 9 10 9
Wind Gust (mph) 41 32 34 29 31 31 26
Precip Prob (%) 0 0 5 5 0 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type S S
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.00 0.00 0.00 0.00
Low End QPF 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 7.9 7.1 6.8 6.6 6.9 8.2 8.9 9.1 8.8 8.5 8.2 7.9 7.9 8.9 9.4 9.8
Snow Density (%) 100 50 20 14 14 16 25 50 50 50 50 50 100 100 100 0 0
...Absoraka-Beartooth/Cooke City Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 OV BK BK SC SC BK BK SC FW FW SC CL CL FW FW
Cloud Cover (%) 10 30 85 60 55 25 40 60 55 25 10 20 25 5 5 15 20
Temperature 56 46 43 37 32 32 38 43 44 35 32 30 29 36 48 54 53
Min/Max Temp 30 45 28 55
Wind Dir SW SW SW SW SW SW W W NW NW SE SE SE S SW SW SW
Wind (mph) 21 14 16 18 17 19 20 20 11 3 3 4 5 5 9 12 11
Wind Gust (mph) 41 34 34 42 42 43 42 40 31
Precip Prob (%) 0 0 50 40 20 5 0 0 0 0 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.00 0.05 0.01 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.05 0.01 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
6 Hour Snow 0.0 0.1 0.1 0.0 0.0 0.0 0.0 0.0
12 Hour Snow 0.1 0.1 0.0 0.0
Low End Snow MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 11.4 10.6 9.0 7.7 6.8 7.1 8.3 9.2 9.3 8.8 8.4 8.1 7.9 8.0 9.3 10.0 10.0
Snow Density (%) 0 100 33 16 10 10 16 25 25 25 25 25 25 33 100 0 0
...Absoraka Mountains Above 6000ft Northeast Facing...
Date Monday 09/14/26 Tuesday 09/15/26
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 OV BK SC FW FW FW SC SC FW FW SC FW FW FW FW
Cloud Cover (%) 10 20 70 60 45 15 20 25 35 30 20 25 30 10 10 10 15
Temperature 60 51 47 41 37 36 41 46 47 39 36 34 34 40 48 54 54
Min/Max Temp 35 48 32 55
Wind Dir SW SW SW SW W SW W W W W SW S S SE SE E NE
Wind (mph) 17 17 16 20 17 24 25 23 13 6 6 6 8 6 8 11 10
Wind Gust (mph) 44 40 42 62 62 61 55 49 40 24 25 29 27
Precip Prob (%) 0 0 60 30 20 5 0 0 0 0 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.00 0.06 0.01 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.06 0.01 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
6 Hour Snow 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0
12 Hour Snow 0.1 0.0 0.0 0.0
Low End Snow MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 11.4 10.6 9.5 8.2 7.1 7.1 8.3 9.1 9.1 8.7 8.4 8.1 7.9 8.0 9.3 10.0 10.1
Snow Density (%) 0 0 50 20 14 14 25 33 25 25 25 33 33 50 100 0 0
...Absoraka Mountains Above 6000ft West Facing...
Date Monday 09/14/26 Tuesday 09/15/26
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 OV BK SC FW FW SC SC SC FW SC SC CL FW FW FW
Cloud Cover (%) 10 30 75 55 40 20 25 45 40 25 20 25 30 5 5 10 20
Temperature 60 50 45 40 35 35 43 48 48 41 36 34 32 38 52 58 57
Min/Max Temp 33 50 31 59
Wind Dir SW SW SW SW SW SW W W NW NW SE SE SE S S SW SW
Wind (mph) 19 12 14 13 12 16 18 17 10 4 3 4 5 4 8 11 10
Wind Gust (mph) 50 43 41 58 52 57 52 49 37 21 25 31
Precip Prob (%) 0 5 50 30 10 5 0 0 0 0 0 0 0 0 0 0 0
Precip Type S S
6 Hour QPF 0.00 0.05 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) 10.8 9.9 8.7 7.6 6.9 7.0 8.2 9.0 9.2 8.8 8.4 8.1 7.9 8.0 9.2 9.8 9.9
Snow Density (%) 0 0 50 25 14 14 25 50 50 33 33 50 50 50 100 0 0
...Crazy Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 OV OV BK BK BK SC SC SC SC SC SC FW SC FW SC
Cloud Cover (%) 15 15 70 75 60 60 55 40 35 35 30 25 35 20 25 25 30
Temperature 62 51 46 41 37 37 40 45 46 41 38 36 35 40 48 55 55
Min/Max Temp 35 47 34 56
Wind Dir S W W W W W W W NW NW W S S SE SE SE E
Wind (mph) 14 10 13 21 24 31 32 33 23 10 5 4 4 5 9 10 12
Wind Gust (mph) 34 47 58 64 63 58 51 28
Precip Prob (%) 5 5 50 70 20 30 10 5 0 0 0 0 0 0 0 0 0
Precip Type R S S S
6 Hour QPF 0.00 0.07 0.03 0.01 0.00 0.00 0.00 0.00
12 Hour QPF 0.07 0.04 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 0.1 0.0 0.0 0.0 0.0 0.0
12 Hour Snow 0.0 0.1 0.0 0.0
Low End Snow MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 10.8 9.9 9.4 7.5 6.9 7.0 7.8 8.4 8.6 8.4 8.1 7.7 7.6 7.8 8.8 9.5 9.9
Snow Density (%) 0 0 100 25 14 14 20 33 33 50 50 50 50 50 100 0 0
$$
--- Precip Type Codes ---
CODE TYPE
T Thunderstorms
R Rain
S Snow
I Sleet
Z Freezing Rain