Avalanche Weather Guidance
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
693
FWUS45 KTFX 121001
AVGTFX
Avalanche Weather Guidance
National Weather Service Great Falls MT
400 AM MDT Sat Sep 12 2026
...Glacier National Park/Marias Pass...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 95 90 90 85 85 85 75 70 95 85 90 85 80 85 95 95 85
Temperature 37 37 39 42 41 39 38 37 37 36 39 42 40 38 37 36 37
Max/Min Temp 42 35 42 35
Wind Dir E E E E E E E E E E SE SW SW SW SW SW W
Wind (mph) 6 6 6 6 8 10 10 11 11 9 6 8 10 16 19 21 23
Wind Gust (mph) 29 34 39 27 33 44 54 59
Precip Prob (%) 40 20 20 10 20 20 10 10 10 50 40 30 60 60 90 90 60
Precip Type S R R R R R R R R R R R S S S S
6 Hour QPF 0.01 0.00 0.01 0.00 0.03 0.15 0.03 0.08
12 Hour QPF 0.01 0.01 0.18 0.11
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 0.1
12 Hour Snow 0.0 0.0 0.0 0.1
Low End Snow MM MM MM MM
High End Snow MM MM MM MM
Snow Level (kft) 7.1 7.3 7.5 7.9 7.8 7.7 7.7 8.0 10.5 10.5 10.0 9.0 7.9 7.1 6.9 7.0 7.1
Snow Density (%) 20 25 25 33 50 50 100 100 100 100 50 33 33 25 20 20 20
...Bob Marshall/Scapegoat Wilderness...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover OV OV OV OV OV OV OV OV OV OV OV OV OV BK OV OV OV
Cloud Cover (%) 90 90 90 80 75 85 75 80 85 75 75 80 80 60 75 80 80
Temperature 37 38 42 45 44 40 39 38 37 38 45 48 44 39 37 37 37
Max/Min Temp 46 36 49 35
Wind Dir E E E E E E E E E E S W W W SW W W
Wind (mph) 6 6 5 5 6 9 10 11 9 6 5 8 10 11 13 19 21
Wind Gust (mph) 26 32 36 34 26 27 32 40 55 63
Precip Prob (%) 20 10 10 10 20 10 10 20 20 5 5 60 30 30 60 60 40
Precip Type R R R R R R R R R R R S S R R
6 Hour QPF 0.01 0.01 0.00 0.01 0.01 0.06 0.01 0.02
12 Hour QPF 0.02 0.01 0.07 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) 7.9 8.1 8.5 9.0 9.4 9.6 10.0 10.7 10.9 10.8 10.2 9.7 8.6 7.4 7.1 7.1 7.2
Snow Density (%) 25 33 50 100 100 0 0 0 0 100 100 50 50 25 20 20 20
...Nevada Mountains...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover OV OV OV OV BK BK BK OV OV OV BK OV OV BK BK OV OV
Cloud Cover (%) 90 95 85 75 55 70 65 70 85 75 60 70 85 60 55 75 80
Temperature 39 39 43 49 48 42 40 39 39 39 48 53 48 42 40 39 39
Max/Min Temp 51 37 54 38
Wind Dir NE NE NE NE NE NE NE NE NE NE W W W W SW SW SW
Wind (mph) 5 5 4 5 9 11 11 11 9 6 5 9 11 11 12 18 21
Wind Gust (mph) 28 32 33 26 29 34 49 52
Precip Prob (%) 5 5 5 5 5 5 10 10 10 0 10 50 40 40 20 20 20
Precip Type R R R R R R R R R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.04 0.01 0.00
12 Hour QPF 0.00 0.00 0.04 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) 8.8 9.1 9.1 9.8 10.4 10.8 11.0 11.0 11.1 10.9 10.4 10.2 9.5 7.6 7.1 7.2 7.3
Snow Density (%) 50 100 0 0 0 0 0 0 0 0 0 0 100 50 33 25 25
...Elkhorn/Boulder Mountains...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover OV OV BK BK BK OV SC BK OV BK SC BK BK BK SC BK BK
Cloud Cover (%) 85 85 65 55 55 70 40 55 75 60 50 55 60 50 40 55 60
Temperature 37 39 47 54 54 44 40 38 36 39 51 56 52 41 38 36 36
Max/Min Temp 56 35 58 34
Wind Dir E SE S SE NE NE NE E SE SE S W NW NW W SW W
Wind (mph) 3 3 4 5 8 10 8 6 6 8 8 11 14 13 10 13 16
Wind Gust (mph) 28 28 39 34 31 40
Precip Prob (%) 0 0 0 0 0 0 5 5 5 0 0 20 30 30 10 10 5
Precip Type R R R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.00
12 Hour QPF 0.00 0.00 0.01 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) 9.4 9.4 9.6 10.6 11.1 11.2 11.3 11.1 11.3 11.1 10.6 10.5 10.0 8.7 7.5 7.1 7.0
Snow Density (%) 100 100 0 0 0 0 0 0 0 0 0 0 100 50 25 20 20
...Big Belt Mountains...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover OV OV OV OV BK BK SC BK OV BK SC BK OV OV SC BK BK
Cloud Cover (%) 85 90 80 75 55 65 45 50 75 55 25 60 80 75 50 65 65
Temperature 41 41 47 54 52 46 42 40 40 41 53 59 54 45 42 40 40
Max/Min Temp 54 39 59 39
Wind Dir NE SE SW NW N NE NE E E SE SE W NW NW W SW SW
Wind (mph) 4 4 3 5 8 10 9 9 9 9 8 8 11 10 10 13 18
Wind Gust (mph) 26 28 27 26 34 34 25 26 31 34 42 48
Precip Prob (%) 5 5 5 5 5 5 5 5 5 0 0 20 60 60 20 20 10
Precip Type R R R R R R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.01 0.09 0.01
12 Hour QPF 0.00 0.00 0.01 0.10
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) 9.1 9.3 9.3 9.7 10.4 10.8 11.0 11.1 11.2 11.3 10.9 10.7 10.3 9.1 7.5 7.3 7.2
Snow Density (%) 50 100 100 0 0 0 0 0 0 0 0 0 0 100 50 25 25
...Little Belt Mountains...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover OV OV OV BK OV BK BK BK OV SC SC SC OV OV BK BK BK
Cloud Cover (%) 90 85 90 70 70 65 55 55 75 45 25 50 90 90 60 60 60
Temperature 38 40 45 51 50 43 40 38 38 40 51 59 55 45 41 38 38
Max/Min Temp 52 37 59 37
Wind Dir SE SE S NW NE E SE SE SE SE SE S SW W W SW SW
Wind (mph) 3 5 5 5 8 6 6 9 13 14 12 11 9 11 12 14 21
Wind Gust (mph) 28 34 36 39 43 41 35 29 29 35 42 51
Precip Prob (%) 5 10 5 5 5 5 5 5 10 0 0 0 80 80 40 40 40
Precip Type R R S S S
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.01 0.13 0.01
12 Hour QPF 0.00 0.00 0.01 0.14
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 8.9 9.3 9.6 10.0 10.4 10.7 11.0 11.2 11.3 11.3 11.1 10.8 9.8 8.1 7.3 7.1
Snow Density (%) 50 50 100 0 0 0 0 0 0 0 0 0 0 100 33 25 25
...Highwood Mountains...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover OV OV OV OV OV SC BK SC BK SC SC BK OV OV BK BK BK
Cloud Cover (%) 75 85 90 90 85 45 50 45 65 40 35 50 90 90 65 55 65
Temperature 41 42 44 48 47 43 41 41 41 42 51 59 54 47 44 42 43
Max/Min Temp 49 39 59 42
Wind Dir E SE E E NE E E SE SE SE SE SE W W W SW W
Wind (mph) 5 8 6 6 8 10 11 14 20 21 18 10 10 16 18 25 33
Wind Gust (mph) 40 35 47 55
Precip Prob (%) 5 10 10 5 5 5 5 5 5 0 0 0 90 90 30 30 30
Precip Type R R R R R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.01 0.23 0.01
12 Hour QPF 0.00 0.00 0.01 0.24
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) 7.8 8.4 9.0 9.1 9.1 9.1 9.4 10.4 11.1 11.1 11.3 11.0 10.6 9.9 7.5 7.2 7.1
Snow Density (%) 50 50 100 100 0 0 0 0 0 0 0 0 0 100 50 50 33
...Snowy/Judith Mountains...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover OV OV OV OV OV OV OV BK OV SC SC FW BK BK BK BK SC
Cloud Cover (%) 90 90 90 75 90 70 70 60 75 35 35 20 70 70 60 55 35
Temperature 41 43 47 51 51 45 41 40 39 42 50 59 60 50 45 42 42
Max/Min Temp 53 37 61 41
Wind Dir E SE SE SE E E SE SE SE SE SE SE SE W W W W
Wind (mph) 3 5 6 5 6 8 6 8 14 18 18 16 12 12 18 17 18
Wind Gust (mph) 24 27 41 42 42 40 34 33 46 48 50
Precip Prob (%) 0 5 10 5 5 5 5 5 5 0 0 0 50 50 30 30 5
Precip Type R R R R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01
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) 8.2 8.5 9.1 9.2 9.5 9.8 10.0 10.6 11.1 11.4 11.8 11.7 11.3 10.5 9.6 7.7 7.1
Snow Density (%) 50 50 100 0 0 0 0 0 0 0 0 0 0 0 100 50 50
...Bears Paw Mountains...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover OV OV OV OV OV OV SC SC BK SC BK SC OV OV OV BK OV
Cloud Cover (%) 85 85 90 95 95 80 40 30 50 35 65 45 90 90 75 70 70
Temperature 38 42 46 47 46 41 39 38 37 42 50 55 54 46 44 42 40
Max/Min Temp 48 35 56 39
Wind Dir NE E SE E NE E E SE SE SE SE SE SE NW W W W
Wind (mph) 2 2 3 4 3 4 4 6 12 18 21 18 14 9 11 16 20
Wind Gust (mph) 35 40 40 36 33 40
Precip Prob (%) 0 5 30 20 5 0 0 0 0 0 0 0 90 90 50 50 60
Precip Type R R R R R R R
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.13 0.01
12 Hour QPF 0.00 0.00 0.00 0.14
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) 6.6 6.7 7.2 7.7 8.0 7.6 7.5 7.8 9.7 10.9 11.1 11.2 10.9 10.3 9.1 7.5 6.9
Snow Density (%) 50 50 50 50 100 100 100 100 0 0 0 0 0 0 100 50 33
...Castle/Crazy Mountains...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover OV OV OV OV BK BK BK OV OV BK SC SC BK BK BK BK SC
Cloud Cover (%) 85 90 80 75 55 65 70 70 85 55 35 35 70 70 60 60 50
Temperature 40 40 46 54 53 45 42 39 38 39 49 59 58 46 42 39 38
Max/Min Temp 55 37 60 38
Wind Dir E SE SE E E E E E E E SE SE S W W SW SW
Wind (mph) 9 8 5 5 9 13 16 17 18 16 13 13 13 14 13 18 24
Wind Gust (mph) 35 40 44 43 35 35 35 33 34 54 62
Precip Prob (%) 5 5 0 5 5 5 5 5 10 0 0 0 50 50 40 40 10
Precip Type R R R S
6 Hour QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01
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) 9.3 9.5 9.5 10.0 10.5 10.9 11.2 11.2 11.4 11.5 11.5 11.2 10.8 9.5 8.5 7.4 7.1
Snow Density (%) 50 50 100 0 0 0 0 0 0 0 0 0 0 100 50 25 25
...Bridger Range...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover OV OV BK BK BK BK BK BK OV BK SC SC BK BK BK BK SC
Cloud Cover (%) 85 85 55 55 60 65 65 65 75 55 35 30 55 55 55 55 50
Temperature 41 42 48 58 57 48 43 41 39 41 52 62 59 47 42 39 38
Max/Min Temp 59 38 63 38
Wind Dir SE SE S W E E E SE SE SE SE S SW NW W SW SW
Wind (mph) 8 8 4 3 5 12 16 17 17 13 9 12 14 12 8 9 13
Wind Gust (mph) 29 37 41 44 43 27 35 35 34 37
Precip Prob (%) 0 0 0 0 0 0 5 5 10 0 0 0 40 40 30 30 5
Precip Type R R R 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) 9.8 9.8 9.5 10.1 10.8 11.2 11.3 11.3 11.5 11.5 11.3 11.1 10.2 9.5 8.4 7.4 7.1
Snow Density (%) 100 100 0 0 0 0 0 0 0 0 0 0 0 100 50 25 25
...Madison Range/Spanish Peaks...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover BK SC SC BK OV BK SC SC BK SC FW FW FW SC SC SC FW
Cloud Cover (%) 60 40 40 55 70 60 40 50 65 45 25 20 20 25 35 30 25
Temperature 37 40 54 60 58 49 45 42 41 45 56 58 54 45 40 35 33
Max/Min Temp 60 40 59 33
Wind Dir S SW SW SW SW S S SE SE S S SW SW SW SW SW SW
Wind (mph) 2 3 8 11 8 5 4 5 8 13 21 25 24 16 9 8 9
Wind Gust (mph) 25 29 29 43 55 56 52 41 27 26
Precip Prob (%) 0 0 0 0 5 0 0 5 0 0 0 0 5 5 10 10 0
Precip Type R R 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) 9.8 9.5 10.2 11.2 11.6 11.4 11.3 11.4 11.7 11.6 10.9 10.7 9.8 8.7 7.7 7.0 6.5
Snow Density (%) 100 0 0 0 0 0 0 0 0 0 0 0 100 100 25 20 16
...Gallatin Range/Hyalite Mountains...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover OV SC SC BK OV OV BK BK BK SC FW FW SC SC SC SC SC
Cloud Cover (%) 75 50 35 60 80 70 55 55 70 50 20 20 35 40 40 40 25
Temperature 39 40 54 60 58 48 43 40 39 42 58 61 57 46 40 36 34
Max/Min Temp 60 38 62 34
Wind Dir SE S W W SE SE SE SE SE SE S S SW W W SW SW
Wind (mph) 3 4 6 10 6 8 6 6 10 12 18 21 21 17 10 9 10
Wind Gust (mph) 25 25 28 29 33 46 48 46 41
Precip Prob (%) 0 0 0 0 0 0 0 0 0 0 0 0 20 20 20 20 0
Precip Type R R R 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) 10.1 9.6 10.1 11.0 11.6 11.5 11.3 11.3 11.7 11.7 11.2 10.9 10.0 8.9 8.3 7.3 6.7
Snow Density (%) 100 0 0 0 0 0 0 0 0 0 0 0 0 100 33 20 16
...Lionhead Range...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover SC SC SC SC BK BK SC BK BK SC FW SC FW FW SC FW FW
Cloud Cover (%) 30 30 30 40 65 55 45 55 60 40 25 25 15 25 45 20 10
Temperature 36 42 60 66 64 52 48 44 42 48 58 61 57 46 42 36 32
Max/Min Temp 66 41 61 32
Wind Dir SW SW SW SW SW S S SE S S SW SW SW SW SW SW SW
Wind (mph) 1 1 8 12 8 4 4 3 6 17 19 20 20 16 18 14 12
Wind Gust (mph) 24 39 41 39 33 36 32
Precip Prob (%) 0 0 0 0 0 0 0 10 0 0 0 0 5 5 5 5 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) 9.7 9.8 10.7 11.2 11.2 11.2 11.5 11.8 11.9 11.8 10.8 10.9 10.4 9.0 7.7 6.7 6.0
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 33 25
...Tobacco Root Mountains...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover BK BK SC BK BK BK BK BK OV BK SC SC SC SC SC SC SC
Cloud Cover (%) 70 60 35 60 65 65 55 55 85 60 35 35 35 35 35 40 40
Temperature 37 39 50 57 56 48 43 40 38 41 54 58 54 44 38 35 34
Max/Min Temp 58 37 59 33
Wind Dir W SW SW W NW NE E E SE SE S SW SW W SW SW SW
Wind (mph) 3 3 4 8 8 11 12 10 8 8 13 21 20 13 11 13 16
Wind Gust (mph) 25 35 48 50 43 32 34
Precip Prob (%) 0 0 0 0 5 0 0 5 5 0 0 0 20 20 10 10 0
Precip Type S R 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) 9.8 9.5 9.9 10.7 11.5 11.5 11.4 11.3 11.5 11.2 10.7 10.5 9.7 8.9 7.8 7.0 6.5
Snow Density (%) 100 100 0 0 0 0 0 0 0 0 0 0 100 50 25 16 16
...Snowcrest/Gravelly/Ruby/Blacktail Ranges...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover SC SC SC BK OV BK SC BK BK SC SC FW FW FW FW FW SC
Cloud Cover (%) 45 40 40 55 75 70 45 55 65 40 25 10 10 15 25 20 30
Temperature 37 42 57 64 63 53 48 45 43 47 59 61 56 46 40 36 34
Max/Min Temp 65 42 62 33
Wind Dir S S SW SW SW S SE SE SE S S SW SW W W SW SW
Wind (mph) 3 3 8 11 10 8 6 6 8 16 26 29 26 17 11 9 8
Wind Gust (mph) 25 42 51 52 49 39 26
Precip Prob (%) 0 0 0 0 5 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) 9.5 9.6 10.4 11.4 11.7 11.5 11.3 11.5 11.6 11.1 10.5 10.1 9.4 8.1 7.0 6.5 6.1
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 100 33 25 20
...Centennial Mountains...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover SC SC SC BK OV BK SC SC BK SC SC FW FW FW FW FW FW
Cloud Cover (%) 30 40 40 55 70 70 35 50 65 45 25 15 15 15 25 15 10
Temperature 38 42 58 63 62 54 50 47 46 49 56 59 55 46 42 36 34
Max/Min Temp 64 45 59 34
Wind Dir NW SW SW SW SW S SE SE SE S S SW SW SW W W SW
Wind (mph) 5 4 8 13 11 9 8 10 12 20 26 28 26 14 10 6 5
Wind Gust (mph) 47 49 46 34
Precip Prob (%) 0 0 0 0 0 0 0 5 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) 9.7 9.9 10.7 11.2 11.4 11.3 11.4 11.7 11.7 11.3 10.4 10.2 9.5 8.4 7.1 6.3 5.8
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 100 50 25 20
...Anaconda/Highland Ranges...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover BK SC SC BK BK BK SC SC OV SC SC SC SC SC BK BK OV
Cloud Cover (%) 55 45 30 60 65 60 45 50 70 40 40 35 40 35 55 60 70
Temperature 37 40 53 60 60 50 45 42 40 42 52 55 51 40 37 36 35
Max/Min Temp 61 40 55 34
Wind Dir E SE S SW NW NE E E E S SW W W W W W W
Wind (mph) 5 4 4 6 5 8 13 13 10 8 12 17 16 12 10 12 12
Wind Gust (mph) 27 34 32 27 26 32 37 34 31 29 34 32
Precip Prob (%) 0 0 0 0 5 0 0 0 10 20 30 0 20 20 20 20 5
Precip Type R R S 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) 9.2 9.5 10.1 11.0 11.4 11.4 11.2 11.2 11.1 10.5 9.9 9.3 8.9 7.9 7.4 6.9 6.9
Snow Density (%) 0 0 0 0 0 0 0 0 0 100 100 100 50 33 20 16 16
...Pioneer Mountains...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover SC SC SC BK BK BK SC BK OV SC SC FW FW FW SC SC BK
Cloud Cover (%) 45 35 35 65 70 70 50 50 75 40 25 20 15 20 30 45 55
Temperature 35 40 54 61 61 51 45 41 40 42 54 56 52 41 36 34 33
Max/Min Temp 62 39 56 31
Wind Dir S S SW SW W SE SE SE SE S SW SW W W W W W
Wind (mph) 4 4 6 9 6 6 8 9 9 10 17 19 18 16 12 11 12
Wind Gust (mph) 26 24 25 26 27 36 43 43 41 41 35 35 36
Precip Prob (%) 0 0 0 0 0 0 0 0 5 0 0 0 5 5 5 5 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) 9.3 9.5 10.3 11.1 11.6 11.5 11.2 11.3 11.2 10.7 10.1 9.7 8.8 7.7 7.2 6.7 6.6
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 100 50 33 20 16 14
...Beaverhead/Tendoy Mountains...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover SC FW SC BK BK OV BK BK BK SC FW FW FW FW FW SC SC
Cloud Cover (%) 30 25 35 65 60 75 65 55 70 30 15 15 10 15 25 25 35
Temperature 37 43 58 63 62 53 48 45 44 47 55 57 52 42 37 33 32
Max/Min Temp 64 43 57 31
Wind Dir SW S SW SW SW SW S SE S S SW SW SW W W W W
Wind (mph) 5 5 9 12 10 6 9 10 12 18 23 24 21 17 13 10 9
Wind Gust (mph) 26 31 32 34 44 47 46 43 41 39 29 28
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) 9.4 9.8 10.6 11.4 11.6 11.4 11.3 11.4 11.3 10.5 9.9 9.4 8.6 7.6 6.9 6.4 6.3
Snow Density (%) 0 0 0 0 0 0 0 0 0 0 0 100 100 33 20 16 16
...Absoraka-Beartooth/Cooke City Mountains...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover BK SC SC BK OV OV OV BK BK SC SC SC FW FW SC SC FW
Cloud Cover (%) 60 30 25 55 90 85 70 55 55 25 25 30 25 20 45 30 15
Temperature 34 38 52 57 55 45 42 39 39 44 56 58 53 43 39 34 31
Max/Min Temp 57 38 59 31
Wind Dir S SW W W W S SE SE SE S SW SW SW SW SW SW SW
Wind (mph) 3 4 12 17 10 5 6 5 8 11 19 24 25 21 20 17 16
Wind Gust (mph) 29 35 34 44 47 49 46 43 42 42
Precip Prob (%) 0 0 0 0 5 0 0 5 5 0 0 0 5 5 20 20 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 9.7 10.3 11.2 11.5 11.2 11.2 11.4 12.0 12.1 12.1 11.7 11.3 10.4 8.6 7.2 6.5
Snow Density (%) 50 100 100 0 0 0 0 0 0 0 0 0 0 100 33 20 14
...Absoraka Mountains Above 6000ft Northeast Facing...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover OV BK SC SC OV OV BK BK BK SC FW FW FW FW SC SC FW
Cloud Cover (%) 70 60 35 45 80 80 60 60 65 45 20 25 20 20 35 30 20
Temperature 37 39 49 53 51 43 41 39 38 43 54 60 57 47 42 38 36
Max/Min Temp 54 38 61 35
Wind Dir SW SW W NW E S S S S SE S S SW SW W SW SW
Wind (mph) 4 6 10 11 10 8 5 5 6 10 14 18 20 20 18 18 20
Wind Gust (mph) 31 25 34 37 29 37 41 42 47 40 46 51 54 52 57 61 63
Precip Prob (%) 0 0 0 0 5 0 5 5 5 0 0 0 5 5 20 20 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 9.7 10.1 11.0 11.5 11.3 11.2 11.3 11.9 12.1 12.1 11.8 11.4 10.3 9.0 7.5 6.8
Snow Density (%) 50 100 100 0 0 0 0 0 0 0 0 0 0 100 50 25 20
...Absoraka Mountains Above 6000ft West Facing...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover BK SC SC BK OV BK BK BK BK SC FW SC FW FW SC SC FW
Cloud Cover (%) 55 35 30 55 75 65 50 50 65 35 25 30 20 25 40 25 15
Temperature 37 41 56 61 59 50 45 42 41 45 58 61 57 47 42 36 33
Max/Min Temp 62 40 62 33
Wind Dir S SW W W SW S S SE SE S SW SW SW SW SW SW SW
Wind (mph) 2 3 9 13 10 5 5 4 6 11 19 21 21 18 14 12 11
Wind Gust (mph) 23 34 41 32 26 26 28 29 43 55 56 52 51 51 54 52
Precip Prob (%) 0 0 0 0 0 0 0 5 5 0 0 0 5 5 10 10 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 9.6 10.3 11.2 11.5 11.3 11.3 11.5 11.9 11.9 11.5 11.3 10.7 9.6 8.2 7.1 6.5
Snow Density (%) 100 0 0 0 0 0 0 0 0 0 0 0 0 100 50 25 20
...Crazy Mountains...
Date Saturday 09/12/26 Sunday 09/13/26
Time (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
6a 9a 12 3p 6p 9p 12 3a 6a 9a 12 3p 6p 9p 12 3a 6a
Cloud Cover OV OV BK BK SC OV OV OV OV BK SC SC SC SC SC SC SC
Cloud Cover (%) 90 90 65 65 45 75 75 75 75 60 30 35 35 35 50 50 30
Temperature 38 39 44 51 50 43 41 39 37 39 48 57 57 47 41 38 37
Max/Min Temp 53 36 59 36
Wind Dir SE SE S S E E E E E SE SE S S W W W W
Wind (mph) 9 8 6 8 10 13 14 16 18 13 12 16 17 18 18 24 29
Wind Gust (mph) 35 39 40 41 35 29 39 39 36 37 58 66
Precip Prob (%) 5 5 0 0 5 5 5 5 10 0 0 0 20 20 30 30 5
Precip Type R R R 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) 9.4 9.7 9.7 10.1 10.6 11.1 11.3 11.2 11.5 11.7 11.7 11.3 10.8 9.4 8.8 7.4 7.0
Snow Density (%) 50 50 100 0 0 0 0 0 0 0 0 0 0 100 50 25 20
$$
--- Precip Type Codes ---
CODE TYPE
T Thunderstorms
R Rain
S Snow
I Sleet
Z Freezing Rain