Avalanche Weather Guidance
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
278
FWUS45 KTFX 141001
AVGTFX
Avalanche Weather Guidance
National Weather Service Great Falls MT
400 AM MDT Mon Sep 14 2026
...Glacier National Park/Marias Pass...
Date Monday 09/14/26 Tuesday 09/15/26
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 OV OV OV OV OV OV OV OV OV OV OV BK
Cloud Cover (%) 90 90 80 70 70 85 80 85 90 85 85 90 100 95 90 90 65
Temperature 36 37 39 43 44 40 39 37 37 38 43 45 44 41 39 38 37
Max/Min Temp 45 36 46 37
Wind Dir SW W W W W W SW SW S E E E E NE NE NE N
Wind (mph) 25 19 14 12 10 10 8 5 3 3 5 5 5 5 4 4 4
Wind Gust (mph) 61 46 37
Precip Prob (%) 80 60 40 30 30 40 10 20 0 10 0 30 70 70 70 70 10
Precip Type S S S R R R R R R R R R R S
6 Hour QPF 0.07 0.01 0.04 0.01 0.00 0.01 0.02 0.01
12 Hour QPF 0.08 0.05 0.01 0.03
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
6 Hour Snow 0.1 0.0 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) 6.4 6.8 7.5 8.1 8.4 8.4 8.2 8.1 7.9 7.9 8.1 8.2 8.2 8.3 8.1 7.9 7.6
Snow Density (%) 16 20 25 33 50 50 50 33 33 33 33 50 50 33 33 25 25
...Bob Marshall/Scapegoat Wilderness...
Date Monday 09/14/26 Tuesday 09/15/26
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 SC SC OV OV OV OV OV OV OV OV BK
Cloud Cover (%) 80 75 65 70 60 50 40 40 80 85 85 85 100 85 85 75 65
Temperature 36 37 40 44 45 40 38 36 35 38 48 51 49 44 42 40 38
Max/Min Temp 46 34 52 38
Wind Dir W W W W W W W SW S SE E E NE NE NE N NE
Wind (mph) 20 20 17 13 10 6 4 3 2 3 4 5 5 5 4 4 4
Wind Gust (mph) 59 56 47 35 28
Precip Prob (%) 40 50 20 10 0 0 0 0 0 0 0 0 30 30 40 40 10
Precip Type S S S R R R R
6 Hour QPF 0.02 0.01 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 0.1 0.0 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) 6.5 6.8 7.5 8.0 8.3 8.2 8.1 7.9 7.7 8.0 8.6 9.0 9.0 8.8 8.9 8.5 8.4
Snow Density (%) 14 16 25 33 33 50 50 50 50 50 50 100 100 100 50 50 33
...Nevada Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 FW FW FW OV OV OV OV OV OV OV OV BK
Cloud Cover (%) 80 80 65 60 35 20 20 15 75 80 75 90 100 80 70 70 65
Temperature 38 38 41 45 47 42 40 38 37 40 50 55 55 47 45 42 40
Max/Min Temp 48 36 57 40
Wind Dir W W W W W W W SW S SE E NE NE N N N N
Wind (mph) 20 24 19 14 11 6 4 4 2 3 4 5 6 10 9 6 8
Wind Gust (mph) 47 49 41 34
Precip Prob (%) 20 20 10 5 0 0 0 0 0 0 0 0 0 0 10 10 10
Precip Type S S R R
6 Hour QPF 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.01 0.00 0.00 0.00
Low End QPF 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 6.9 7.6 8.1 8.3 8.1 8.0 7.8 7.8 8.2 8.9 9.4 9.5 9.4 9.4 9.3 8.8
Snow Density (%) 20 25 33 50 50 100 100 100 100 100 0 0 0 0 0 100 50
...Elkhorn/Boulder Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 BK BK SC SC FW FW FW SC BK BK OV OV OV BK BK BK
Cloud Cover (%) 50 55 65 45 30 20 15 15 50 50 65 80 85 70 60 60 55
Temperature 36 38 42 45 47 40 37 35 34 39 51 56 57 47 43 40 38
Max/Min Temp 48 33 58 37
Wind Dir W W W W NW NW W S S SE SE E NE N N N N
Wind (mph) 13 18 19 16 12 5 3 4 4 4 5 5 6 10 11 9 8
Wind Gust (mph) 34 41 42 36 31 32 33 29
Precip Prob (%) 5 5 5 0 0 0 0 0 0 0 0 0 0 0 5 5 0
Precip Type
6 Hour QPF 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.01 0.00 0.00 0.00
Low End QPF 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) 6.8 7.0 7.8 8.3 8.5 8.2 8.0 7.9 7.9 8.6 9.4 9.8 9.9 9.9 9.7 9.7 9.1
Snow Density (%) 14 16 25 33 50 50 50 50 50 100 0 0 0 0 0 100 100
...Big Belt Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 OV OV BK SC SC FW FW BK BK BK OV OV OV BK BK BK
Cloud Cover (%) 55 70 70 70 45 35 20 20 60 60 60 85 90 70 70 70 55
Temperature 40 40 43 47 49 44 41 39 38 41 52 58 58 50 46 42 41
Max/Min Temp 50 37 60 40
Wind Dir W SW W W NW NW W S S SE SE NE NE N N N N
Wind (mph) 13 20 20 17 12 5 3 4 4 4 4 4 6 9 9 8 8
Wind Gust (mph) 40 48 44 37 29 27 33 27 25
Precip Prob (%) 10 10 20 20 5 0 0 0 0 0 0 0 0 0 10 10 5
Precip Type S S R R R R R
6 Hour QPF 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.01 0.00 0.00 0.00
Low End QPF 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) 6.8 6.8 7.6 8.2 8.4 8.3 8.1 7.9 7.9 8.4 9.1 9.6 9.7 9.9 9.7 9.6 9.1
Snow Density (%) 20 20 33 50 50 50 100 100 100 100 0 0 0 0 0 0 100
...Little Belt Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 OV OV OV BK BK SC FW BK BK BK OV OV BK OV OV BK
Cloud Cover (%) 45 70 80 80 65 60 35 25 65 60 60 70 85 60 75 70 65
Temperature 38 38 40 44 46 42 39 37 36 40 50 56 58 48 44 40 39
Max/Min Temp 47 35 59 39
Wind Dir W W W W NW NW W SW S SE SE SE E E E NW NW
Wind (mph) 14 24 23 20 16 8 4 3 4 5 8 9 8 6 4 3 3
Wind Gust (mph) 41 48 48 47 40 23 27 26 27 29
Precip Prob (%) 10 40 60 60 10 0 0 0 0 0 0 0 0 0 10 10 5
Precip Type S S R R
6 Hour QPF 0.02 0.06 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) 6.6 6.7 7.5 8.0 8.3 8.3 8.0 7.9 7.9 8.4 9.2 9.8 9.9 9.9 9.7 9.6 9.1
Snow Density (%) 20 16 25 33 50 50 50 50 50 100 100 0 0 0 0 0 100
...Highwood Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 BK OV OV OV SC SC SC OV OV OV OV OV OV OV OV OV
Cloud Cover (%) 35 65 85 75 70 50 45 25 85 80 75 80 100 80 85 75 75
Temperature 43 43 42 46 48 46 43 41 40 42 50 57 58 51 47 44 42
Max/Min Temp 49 40 59 41
Wind Dir W W W W NW NW NW W SE SE E E NE NE E N W
Wind (mph) 21 28 28 26 20 9 6 4 5 6 8 8 9 11 8 6 5
Wind Gust (mph) 39 47
Precip Prob (%) 10 30 70 20 20 10 0 0 0 0 0 0 10 10 20 20 10
Precip Type R R R R R R
6 Hour QPF 0.02 0.04 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 0.0 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) 6.5 6.5 7.2 7.8 8.1 8.1 8.0 7.8 8.0 8.0 8.9 9.5 9.8 9.8 9.7 9.6 8.9
Snow Density (%) 33 33 33 50 50 50 100 100 100 100 100 0 0 0 0 0 50
...Snowy/Judith Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 BK BK BK BK SC SC BK SC SC BK OV BK BK BK BK
Cloud Cover (%) 60 45 60 65 55 70 35 35 55 40 40 65 95 60 65 60 65
Temperature 42 43 45 48 51 46 43 40 39 42 51 58 61 51 47 43 41
Max/Min Temp 53 37 61 40
Wind Dir W W W NW NW NW NW W S SE SE SE SE E E NE N
Wind (mph) 14 20 25 33 25 17 10 4 4 8 10 10 11 12 8 4 6
Wind Gust (mph) 41 43 48 58 52 42 28 27 32 37 31 24
Precip Prob (%) 10 20 30 10 5 5 0 0 0 0 0 0 0 0 0 0 0
Precip Type R R R
6 Hour QPF 0.01 0.01 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) 6.9 6.6 7.3 7.8 8.1 8.1 7.8 7.6 7.8 8.2 8.8 9.2 9.4 9.4 9.6 9.6 9.1
Snow Density (%) 50 33 50 100 100 50 100 100 100 100 0 0 0 0 0 0 100
...Bears Paw Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 BK OV OV BK BK OV OV BK OV OV OV OV OV OV OV
Cloud Cover (%) 70 40 65 75 85 65 55 75 90 60 85 90 95 85 90 90 80
Temperature 42 44 45 49 47 44 41 39 38 42 51 56 55 48 45 43 41
Max/Min Temp 51 37 58 41
Wind Dir W W W NW NW NW NW NW E SE SE SE E E E NE NE
Wind (mph) 17 19 23 23 19 14 8 2 2 5 9 10 10 12 9 6 6
Wind Gust (mph) 35 41 37 32
Precip Prob (%) 0 10 30 50 30 5 0 0 0 0 0 0 30 30 40 40 10
Precip Type R R R R R R R R
6 Hour QPF 0.01 0.06 0.01 0.00 0.00 0.00 0.01 0.03
12 Hour QPF 0.07 0.01 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) 6.5 6.3 6.8 7.7 8.1 7.7 7.2 6.7 7.2 7.6 8.0 8.4 8.9 9.3 9.1 9.2 8.6
Snow Density (%) 50 33 33 100 100 100 50 100 100 100 100 100 0 0 0 100 100
...Castle/Crazy Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 BK BK BK SC SC FW SC BK SC SC BK BK SC BK BK SC
Cloud Cover (%) 50 60 65 60 40 30 20 30 50 40 45 60 65 45 55 50 45
Temperature 38 39 42 46 47 42 39 37 36 40 51 58 59 49 45 41 39
Max/Min Temp 48 35 59 39
Wind Dir W W W W NW W W SW SE SE SE SE E E E NE NW
Wind (mph) 17 25 28 26 20 8 4 4 4 5 8 9 11 12 9 5 4
Wind Gust (mph) 49 59 61 58 50 26 26 29
Precip Prob (%) 20 30 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type S S R R
6 Hour QPF 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.01 0.00 0.00 0.00
Low End QPF 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) 6.9 6.9 7.6 8.2 8.4 8.4 8.1 7.9 7.8 8.5 9.4 9.8 9.9 10.0 9.7 9.6 9.1
Snow Density (%) 20 16 25 33 50 50 50 50 50 100 0 0 0 0 0 0 100
...Bridger Range...
Date Monday 09/14/26 Tuesday 09/15/26
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 BK BK SC FW FW FW SC SC SC SC BK SC SC SC SC
Cloud Cover (%) 60 45 65 60 25 10 10 20 40 30 50 50 50 40 45 45 45
Temperature 39 39 43 47 48 42 40 37 36 40 52 59 60 50 46 41 39
Max/Min Temp 49 35 61 39
Wind Dir W W W W NW NW W S SE SE SE SE E E E NE NE
Wind (mph) 11 18 21 19 13 4 2 3 4 4 4 5 6 10 6 4 3
Wind Gust (mph) 42 44 41 32
Precip Prob (%) 20 20 10 5 0 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type S S
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) 7.2 7.0 7.7 8.4 8.5 8.3 8.1 8.0 8.0 8.6 9.4 10.0 10.1 10.0 9.8 9.6 9.1
Snow Density (%) 20 20 25 50 50 50 50 50 100 100 0 0 0 0 0 0 100
...Madison Range/Spanish Peaks...
Date Monday 09/14/26 Tuesday 09/15/26
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 SC FW FW FW FW SC FW FW FW SC FW SC SC SC
Cloud Cover (%) 45 20 40 35 15 15 10 20 35 25 15 20 25 20 25 30 30
Temperature 35 35 41 46 47 40 36 35 34 38 50 56 55 45 42 38 37
Max/Min Temp 48 32 57 36
Wind Dir SW SW W W NW NW SE S S S S SW SW SE SE E NE
Wind (mph) 10 14 14 14 10 4 3 5 6 6 9 10 9 5 4 3 2
Wind Gust (mph) 36 34 34 27 24 27 28 26
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) 7.3 7.1 8.1 8.8 8.9 8.6 8.3 8.1 8.0 8.8 9.6 9.9 10.0 9.7 9.5 9.2 8.8
Snow Density (%) 11 11 16 33 33 33 33 33 50 50 100 0 0 0 0 0 100
...Gallatin Range/Hyalite Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 FW SC SC SC SC FW FW SC SC FW SC FW FW SC SC SC
Cloud Cover (%) 65 25 40 50 30 25 15 20 30 30 20 25 20 20 30 30 30
Temperature 36 36 43 47 47 40 37 35 34 39 52 58 57 46 42 38 36
Max/Min Temp 49 32 59 36
Wind Dir SW SW W W NW NW S S S S S S SE E S SW W
Wind (mph) 9 14 16 16 12 4 3 5 6 5 8 9 8 6 4 3 2
Wind Gust (mph) 26 35 34
Precip Prob (%) 10 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) 7.4 7.1 8.1 8.7 8.8 8.6 8.4 8.1 8.0 8.9 9.8 10.1 10.1 9.8 9.5 9.3 8.9
Snow Density (%) 12 12 20 33 33 25 33 33 50 50 100 0 0 0 0 0 100
...Lionhead Range...
Date Monday 09/14/26 Tuesday 09/15/26
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 FW BK FW SC FW FW SC FW FW FW SC FW FW FW FW
Cloud Cover (%) 30 10 20 50 15 30 15 15 30 15 10 25 50 20 20 20 20
Temperature 35 36 46 51 51 42 39 35 32 39 55 59 59 46 42 38 35
Max/Min Temp 53 29 61 34
Wind Dir SW SW SW W W NW E E E S SW SW SW S E E E
Wind (mph) 13 14 13 11 8 3 2 2 2 3 9 10 5 3 3 2 2
Wind Gust (mph)
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) 7.2 6.9 7.8 8.8 9.1 8.9 8.5 8.4 8.3 8.7 9.4 10.0 10.4 10.0 10.2 9.5 9.5
Snow Density (%) 25 16 33 100 0 100 100 100 100 100 0 0 0 0 0 0 0
...Tobacco Root Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 FW FW FW FW SC SC SC SC SC SC SC SC SC
Cloud Cover (%) 40 30 50 40 10 20 15 15 40 40 45 35 35 45 45 35 40
Temperature 35 36 41 45 47 40 37 35 34 38 49 55 57 47 43 39 37
Max/Min Temp 47 33 57 37
Wind Dir W SW W W NW NW SE S S S S E NE NE NE NE NE
Wind (mph) 14 19 18 14 10 5 4 4 4 4 5 6 6 8 8 5 4
Wind Gust (mph) 33 42 36 32 24 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) 7.1 7.0 8.0 8.6 8.8 8.5 8.3 8.1 8.0 8.7 9.5 10.0 10.1 10.1 9.7 9.6 9.1
Snow Density (%) 12 12 16 25 33 33 33 33 50 50 100 0 0 0 0 100 100
...Snowcrest/Gravelly/Ruby/Blacktail Ranges...
Date Monday 09/14/26 Tuesday 09/15/26
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 FW FW SC FW FW FW FW FW SC SC FW FW SC SC SC SC SC
Cloud Cover (%) 25 15 35 25 5 10 15 15 35 25 20 25 35 25 35 35 30
Temperature 36 38 45 51 50 42 38 36 35 40 53 59 58 48 44 40 38
Max/Min Temp 52 33 60 37
Wind Dir W SW W W NW N NE SE S S S S S SE E NE NE
Wind (mph) 9 12 14 14 12 5 4 5 6 9 11 12 11 10 5 4 3
Wind Gust (mph) 34 33
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) 6.9 7.0 8.1 8.8 8.9 8.7 8.4 8.3 8.2 8.7 9.5 9.9 10.0 9.8 9.6 9.2 8.8
Snow Density (%) 14 14 25 50 100 50 50 50 50 100 0 0 0 0 0 0 0
...Centennial Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 FW CL SC SC FW FW FW FW SC FW FW FW SC FW FW FW FW
Cloud Cover (%) 15 5 35 45 15 15 15 15 35 15 15 25 40 15 20 25 20
Temperature 37 38 45 51 51 44 40 37 35 39 52 57 56 48 44 41 38
Max/Min Temp 52 33 58 38
Wind Dir SW SW W W W N NE SE SE SE S S SW S NE N N
Wind (mph) 9 11 12 12 10 5 4 5 5 8 12 13 10 5 6 5 6
Wind Gust (mph)
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) 6.9 7.0 8.0 8.9 9.1 8.9 8.5 8.4 8.4 8.7 9.4 9.7 9.9 9.7 9.5 9.3 9.0
Snow Density (%) 16 16 25 100 100 100 50 50 50 100 100 0 0 0 0 0 0
...Anaconda/Highland Ranges...
Date Monday 09/14/26 Tuesday 09/15/26
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 BK SC FW FW FW FW SC BK OV OV OV OV BK SC SC
Cloud Cover (%) 65 60 65 50 20 15 20 10 40 55 75 80 75 75 60 45 30
Temperature 39 39 42 45 46 40 38 37 35 39 51 57 57 48 44 40 38
Max/Min Temp 47 35 58 38
Wind Dir W W W W NW NW NE SE SE S S SW N N N N NE
Wind (mph) 12 13 12 10 9 4 3 3 3 4 5 5 5 9 9 8 5
Wind Gust (mph) 31 33 31 27
Precip Prob (%) 20 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
Precip Type S S
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) 7.0 7.2 7.9 8.4 8.6 8.4 8.0 7.9 7.8 8.5 9.2 9.6 9.7 9.7 9.6 9.5 9.0
Snow Density (%) 12 16 20 25 33 50 50 50 50 100 100 0 0 0 0 100 100
...Pioneer Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 BK SC FW FW FW FW SC BK BK BK BK BK BK SC SC
Cloud Cover (%) 50 60 65 40 10 15 20 10 40 60 60 55 50 65 50 40 30
Temperature 35 37 41 45 46 39 37 35 34 39 52 58 58 48 44 39 37
Max/Min Temp 47 33 58 37
Wind Dir W W W W NW NW S S S S S SW NW N N NE NE
Wind (mph) 13 17 13 12 10 5 3 3 4 5 6 6 5 6 6 4 3
Wind Gust (mph) 40 43 32 25 26 23
Precip Prob (%) 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type S S
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) 6.9 7.2 8.0 8.5 8.8 8.5 8.1 7.9 7.8 8.7 9.5 9.8 9.9 9.7 9.7 9.5 9.0
Snow Density (%) 11 12 16 25 33 50 50 50 50 50 100 0 0 0 0 100 100
...Beaverhead/Tendoy Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 FW FW FW FW FW SC SC SC SC SC SC SC SC SC
Cloud Cover (%) 25 35 40 20 10 15 20 10 35 30 30 40 45 50 40 30 30
Temperature 35 37 43 49 49 41 37 35 34 39 52 58 58 48 43 39 37
Max/Min Temp 50 32 59 37
Wind Dir W W W NW NW N N S S S S SW W E NW N N
Wind (mph) 11 11 11 11 9 5 3 5 6 8 9 10 9 9 6 4 4
Wind Gust (mph) 32 31 26
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) 6.8 7.1 8.1 8.8 9.0 8.8 8.4 8.4 8.3 8.7 9.4 9.9 10.0 9.8 9.5 9.1 8.8
Snow Density (%) 12 14 20 50 50 50 50 50 50 100 100 0 0 0 0 0 100
...Absoraka-Beartooth/Cooke City Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 BK OV SC FW FW FW SC FW FW SC SC FW FW FW FW
Cloud Cover (%) 60 50 55 70 40 25 10 15 25 15 20 25 40 20 15 15 20
Temperature 33 32 39 44 44 36 32 30 29 36 48 53 53 42 39 36 34
Max/Min Temp 45 27 55 34
Wind Dir SW SW W W W NW NW S SE S SW SW SW SW SE SE SE
Wind (mph) 17 19 20 20 16 4 3 4 5 6 10 13 10 5 6 4 3
Wind Gust (mph) 42 43 43 40 27 27
Precip Prob (%) 20 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.01 0.00 0.00 0.00
Low End QPF MM MM MM MM
High End QPF MM MM MM MM
6 Hour Snow 0.1 0.0 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) 7.6 7.3 8.1 9.0 9.1 8.6 8.3 8.1 8.0 9.0 9.8 10.1 10.3 10.0 10.3 9.5 9.4
Snow Density (%) 9 8 14 25 25 20 20 20 25 33 50 0 0 0 0 0 0
...Absoraka Mountains Above 6000ft Northeast Facing...
Date Monday 09/14/26 Tuesday 09/15/26
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 FW SC SC FW FW FW SC FW FW FW SC FW FW FW SC
Cloud Cover (%) 50 25 25 35 30 20 10 15 30 20 20 25 30 25 20 20 25
Temperature 37 37 42 46 47 39 36 34 34 40 48 54 55 44 42 40 38
Max/Min Temp 48 32 56 37
Wind Dir W W W W W W W SW SW S SE SE E S SW SW SW
Wind (mph) 17 24 25 23 18 8 5 6 6 6 9 11 10 6 6 6 4
Wind Gust (mph) 58 58 54 49 40 28 31 28 28
Precip Prob (%) 20 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type
6 Hour QPF 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12 Hour QPF 0.01 0.00 0.00 0.00
Low End QPF 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) 7.7 7.2 8.1 8.9 9.0 8.6 8.3 8.1 8.1 8.9 9.8 10.2 10.2 10.0 10.2 9.4 9.3
Snow Density (%) 12 12 16 25 25 25 25 25 33 50 50 100 0 0 0 0 100
...Absoraka Mountains Above 6000ft West Facing...
Date Monday 09/14/26 Tuesday 09/15/26
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 SC SC FW FW FW FW FW FW FW SC FW FW FW FW
Cloud Cover (%) 45 20 35 50 30 25 10 15 25 20 15 25 35 20 20 25 25
Temperature 35 36 43 48 48 41 37 34 32 38 52 58 57 46 42 38 36
Max/Min Temp 50 31 59 36
Wind Dir SW SW W W W NW NW S S S SW SW SW S SE SE SE
Wind (mph) 12 16 18 17 12 4 3 4 4 5 9 11 9 5 4 3 2
Wind Gust (mph) 49 55 51 48 37 21 21 24 28 32 28
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) 7.5 7.1 8.1 8.9 9.0 8.6 8.4 8.1 8.0 8.9 9.7 10.1 10.2 10.0 10.1 9.5 9.2
Snow Density (%) 12 12 20 50 50 33 33 33 50 50 100 0 0 0 0 0 0
...Crazy Mountains...
Date Monday 09/14/26 Tuesday 09/15/26
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 SC SC FW FW FW SC SC SC SC SC SC SC SC SC
Cloud Cover (%) 55 60 50 50 30 20 20 25 50 35 40 45 50 40 35 35 40
Temperature 37 37 40 45 46 41 38 36 35 40 48 55 56 47 43 40 38
Max/Min Temp 47 33 57 38
Wind Dir W W W W W NW W SW S SE SE SE E E NE N NW
Wind (mph) 21 29 33 32 25 11 6 4 4 6 10 11 12 13 10 5 4
Wind Gust (mph) 54 64 62 58 51
Precip Prob (%) 20 30 10 5 0 0 0 0 0 0 0 0 0 0 0 0 0
Precip Type S S
6 Hour QPF 0.03 0.01 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 0.1 0.0 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) 7.1 7.0 7.7 8.3 8.5 8.3 8.0 7.9 7.9 8.7 9.4 9.8 9.9 9.9 9.7 9.5 9.1
Snow Density (%) 16 14 20 33 33 33 50 33 50 50 100 0 0 0 0 0 100
$$
--- Precip Type Codes ---
CODE TYPE
T Thunderstorms
R Rain
S Snow
I Sleet
Z Freezing Rain