431
FWUS45 KTFX 262201
AVGTFX
AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE GREAT FALLS MT
400 PM MDT SUN APR 26 2026
..GLACIER NATIONAL PARK/MARIAS PASS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
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 BK BK SC SC SC SC SC BK BK BK
CLOUD COVER (%) 80 80 70 55 55 55 55 55 50 40 30 30 40 35 50 55 50
TEMPERATURE 19 16 14 12 10 18 28 32 34 27 24 23 23 29 36 39 39
MIN/MAX TEMP 10 35 22 40
WIND DIR NE E E E SE S S SW SW SW SW SW SW SW W W W
WIND (MPH) 12 10 6 6 6 5 8 8 8 6 8 9 10 10 12 12 11
WIND GUST (MPH)
PRECIP PROB (%) 20 20 10 5 10 10 20 30 20 20 5 5 10 10 30 30 30
PRECIP TYPE S S S S S S S S S S S S
6 HOUR QPF 0.02 0.00 0.00 0.01 0.00 0.00 0.00 0.00
12 HOUR QPF 0.02 0.01 0.00 0.00
LOW END QPF 0.00 0.00 0.00 0.00
HIGH END QPF 0.05 0.07 0.04 0.12
6 HOUR SNOW 0.3 0.1 0.0 0.1 0.0 0.0 0.0 0.0
12 HOUR SNOW 0.4 0.1 0.0 0.0
LOW END SNOW 0.0 0.0 0.0 0.0
HIGH END SNOW 0.7 0.7 0.3 0.4
SNOW LEVEL (KFT) 1.7 1.3 0.8 0.5 0.6 1.5 3.0 3.6 4.6 4.4 4.1 3.9 4.0 4.4 5.1 5.5 5.8
SNOW DENSITY (%) 5 5 5 5 5 5 6 7 7 9 8 8 8 9 11 12 16
..BOB MARSHALL/SCAPEGOAT WILDERNESS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6P 9P 12 3A 6A 9A 12 3P 6P 9P 12 3A 6A 9A 12 3P 6P
CLOUD COVER OV OV OV OV OV BK BK BK BK BK SC SC SC SC OV OV BK
CLOUD COVER (%) 80 80 80 70 70 60 55 70 65 50 30 30 50 50 75 75 50
TEMPERATURE 22 19 17 15 13 20 30 34 34 27 23 21 21 28 36 40 40
MIN/MAX TEMP 13 36 21 40
WIND DIR E NE E E E SE S SW W W W W W W W W W
WIND (MPH) 11 10 8 6 5 5 6 8 6 5 5 6 8 9 12 12 11
WIND GUST (MPH) 28 28 32 32 29
PRECIP PROB (%) 30 30 20 10 10 10 30 50 30 30 5 5 30 30 60 60 30
PRECIP TYPE S S S S S S S S S S S S S S S
6 HOUR QPF 0.03 0.01 0.01 0.03 0.01 0.00 0.00 0.03
12 HOUR QPF 0.04 0.04 0.01 0.03
LOW END QPF 0.00 0.00 0.00 0.00
HIGH END QPF 0.07 0.08 0.06 0.10
6 HOUR SNOW 0.5 0.2 0.1 0.2 0.1 0.0 0.0 0.1
12 HOUR SNOW 0.7 0.3 0.1 0.1
LOW END SNOW 0.0 0.0 0.0 0.0
HIGH END SNOW 1.1 1.0 0.6 0.4
SNOW LEVEL (KFT) 2.6 2.2 1.6 1.1 1.1 2.0 3.4 4.1 5.0 4.6 4.2 4.0 4.0 4.6 5.2 5.7 6.0
SNOW DENSITY (%) 5 5 5 5 5 5 6 7 7 7 7 7 7 7 10 12 14
..NEVADA MOUNTAINS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6P 9P 12 3A 6A 9A 12 3P 6P 9P 12 3A 6A 9A 12 3P 6P
CLOUD COVER OV OV OV OV OV BK BK BK BK SC SC SC SC SC OV OV SC
CLOUD COVER (%) 80 80 85 85 75 65 55 60 55 50 40 30 40 40 70 70 45
TEMPERATURE 25 22 21 20 19 23 31 36 38 31 27 26 25 30 38 42 43
MIN/MAX TEMP 18 39 25 43
WIND DIR NE NE NE NE NE NE E NE NW NW W W W W W W W
WIND (MPH) 14 13 11 8 5 4 5 5 6 4 5 5 6 8 12 12 11
WIND GUST (MPH)
PRECIP PROB (%) 30 30 20 10 20 20 30 40 20 20 5 5 20 20 60 60 20
PRECIP TYPE S S S S S S S S S S S S S S S
6 HOUR QPF 0.02 0.01 0.01 0.03 0.01 0.00 0.00 0.03
12 HOUR QPF 0.03 0.04 0.01 0.03
LOW END QPF 0.00 0.00 0.00 0.00
HIGH END QPF 0.06 0.06 0.04 0.09
6 HOUR SNOW 0.3 0.2 0.1 0.2 0.1 0.0 0.0 0.1
12 HOUR SNOW 0.5 0.3 0.1 0.1
LOW END SNOW 0.0 0.0 0.0 0.0
HIGH END SNOW 0.8 0.5 0.3 0.2
SNOW LEVEL (KFT) 3.1 2.6 2.1 1.7 1.4 2.1 3.6 4.3 5.1 4.8 4.5 4.1 4.0 4.6 5.3 5.7 6.1
SNOW DENSITY (%) 6 6 6 6 6 6 6 10 11 10 10 9 8 9 12 16 20
..ELKHORN/BOULDER MOUNTAINS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6P 9P 12 3A 6A 9A 12 3P 6P 9P 12 3A 6A 9A 12 3P 6P
CLOUD COVER OV OV OV OV OV OV OV OV BK SC SC SC SC SC BK BK SC
CLOUD COVER (%) 75 80 85 90 85 80 75 70 65 50 45 30 35 30 60 60 45
TEMPERATURE 28 23 22 21 20 23 29 34 35 28 25 24 23 30 37 40 41
MIN/MAX TEMP 19 36 23 42
WIND DIR N N NE NE NE E E NE N W W W W W W W NW
WIND (MPH) 14 13 9 6 5 4 5 6 6 5 5 6 6 6 11 12 12
WIND GUST (MPH) 35 33 27 28 29 29
PRECIP PROB (%) 40 30 30 10 30 30 50 50 20 20 0 0 10 10 40 40 20
PRECIP TYPE S S S S S S S S S S S S S S S
6 HOUR QPF 0.03 0.01 0.02 0.09 0.01 0.00 0.00 0.04
12 HOUR QPF 0.04 0.11 0.01 0.04
LOW END QPF 0.00 0.00 0.00 0.00
HIGH END QPF 0.07 0.15 0.04 0.14
6 HOUR SNOW 0.4 0.2 0.3 1.1 0.1 0.0 0.0 0.2
12 HOUR SNOW 0.6 1.4 0.1 0.2
LOW END SNOW 0.0 0.0 0.0 0.0
HIGH END SNOW 1.0 1.7 0.4 0.4
SNOW LEVEL (KFT) 4.1 3.5 3.0 2.7 2.6 3.1 4.1 4.7 5.3 5.1 4.8 4.5 4.3 4.7 5.3 5.8 6.1
SNOW DENSITY (%) 6 6 6 6 6 6 6 7 8 8 7 7 7 7 10 14 16
..BIG BELT MOUNTAINS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6P 9P 12 3A 6A 9A 12 3P 6P 9P 12 3A 6A 9A 12 3P 6P
CLOUD COVER OV OV OV OV OV OV OV BK BK BK SC SC SC SC BK BK BK
CLOUD COVER (%) 80 85 80 75 75 70 70 65 50 50 45 35 35 35 65 65 55
TEMPERATURE 28 25 23 22 21 24 31 36 38 32 28 27 26 32 40 43 44
MIN/MAX TEMP 21 38 25 45
WIND DIR NE NE NE NE NE E E NE NE E S S SW SW W W NW
WIND (MPH) 16 13 10 8 6 4 5 5 6 4 5 5 5 8 12 12 11
WIND GUST (MPH) 31 32 32 32
PRECIP PROB (%) 40 30 20 20 30 30 50 40 20 20 5 5 10 10 50 50 20
PRECIP TYPE S S S S S S S S S S S S S S S
6 HOUR QPF 0.03 0.02 0.02 0.04 0.01 0.00 0.00 0.04
12 HOUR QPF 0.05 0.06 0.01 0.04
LOW END QPF 0.00 0.00 0.00 0.00
HIGH END QPF 0.06 0.08 0.04 0.14
6 HOUR SNOW 0.4 0.3 0.3 0.5 0.1 0.0 0.0 0.1
12 HOUR SNOW 0.7 0.8 0.1 0.1
LOW END SNOW 0.0 0.0 0.0 0.0
HIGH END SNOW 0.9 0.9 0.3 0.3
SNOW LEVEL (KFT) 3.7 3.1 2.6 2.2 2.0 2.5 3.6 4.3 5.1 4.9 4.6 4.2 4.0 4.5 5.2 5.6 6.0
SNOW DENSITY (%) 7 6 6 6 6 6 6 9 11 11 10 9 8 9 12 16 20
..LITTLE BELT MOUNTAINS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
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 OV OV OV BK BK SC SC SC SC OV OV BK
CLOUD COVER (%) 85 85 75 75 65 70 80 80 65 55 45 35 40 40 75 75 55
TEMPERATURE 26 22 21 19 18 23 30 34 35 28 24 23 23 31 39 42 41
MIN/MAX TEMP 17 36 22 43
WIND DIR NE NE NE E SE SE SE SE SE S S SW SW W W W NW
WIND (MPH) 11 9 5 4 4 4 6 6 5 4 5 5 5 6 12 12 11
WIND GUST (MPH) 29
PRECIP PROB (%) 70 40 20 20 40 50 50 60 30 30 10 10 20 20 60 60 30
PRECIP TYPE S S S S S S S S S S S S S S S
6 HOUR QPF 0.03 0.02 0.02 0.04 0.01 0.00 0.00 0.06
12 HOUR QPF 0.05 0.06 0.01 0.06
LOW END QPF 0.01 0.00 0.00 0.01
HIGH END QPF 0.07 0.09 0.04 0.14
6 HOUR SNOW 0.5 0.4 0.3 0.5 0.1 0.0 0.0 0.2
12 HOUR SNOW 0.9 0.8 0.1 0.2
LOW END SNOW 0.1 0.0 0.0 0.0
HIGH END SNOW 1.1 1.0 0.5 0.6
SNOW LEVEL (KFT) 3.5 3.0 2.4 1.9 1.8 2.4 3.4 4.0 4.7 4.4 4.2 4.0 3.9 4.5 5.0 5.5 5.8
SNOW DENSITY (%) 6 5 5 6 5 5 6 7 8 8 8 7 7 8 10 12 14
..HIGHWOOD MOUNTAINS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
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 BK SC SC SC FW SC SC BK BK BK
CLOUD COVER (%) 85 90 80 60 55 55 60 65 45 45 35 25 25 25 65 65 50
TEMPERATURE 27 24 22 20 19 23 30 36 37 31 28 27 27 34 42 46 45
MIN/MAX TEMP 18 38 27 47
WIND DIR NE NE E E SE SE SE SE SE SE SW SW SW W W W W
WIND (MPH) 13 11 9 8 8 8 9 6 6 6 6 8 9 9 14 13 12
WIND GUST (MPH)
PRECIP PROB (%) 40 30 20 10 20 20 40 30 20 20 5 5 10 10 50 50 30
PRECIP TYPE S S S S S S S S S S S S
6 HOUR QPF 0.02 0.01 0.01 0.01 0.00 0.00 0.00 0.03
12 HOUR QPF 0.03 0.02 0.00 0.03
LOW END QPF 0.00 0.00 0.00 0.00
HIGH END QPF 0.05 0.02 0.03 0.09
6 HOUR SNOW 0.3 0.1 0.1 0.0 0.0 0.0 0.0 0.0
12 HOUR SNOW 0.4 0.1 0.0 0.0
LOW END SNOW 0.0 0.0 0.0 0.0
HIGH END SNOW 0.8 0.1 0.2 0.0
SNOW LEVEL (KFT) 2.7 2.3 1.7 1.2 1.0 1.5 2.7 3.6 4.4 4.2 4.1 3.9 3.8 4.2 4.8 5.2 5.5
SNOW DENSITY (%) 6 6 6 6 6 6 6 8 11 11 12 11 10 11 14 16 20
..SNOWY/JUDITH MOUNTAINS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6P 9P 12 3A 6A 9A 12 3P 6P 9P 12 3A 6A 9A 12 3P 6P
CLOUD COVER OV OV OV OV OV OV OV OV OV SC SC SC SC SC BK BK BK
CLOUD COVER (%) 90 95 85 85 85 90 80 75 75 50 40 40 35 35 65 65 65
TEMPERATURE 28 25 23 21 20 24 30 34 34 27 25 24 24 35 43 46 44
MIN/MAX TEMP 18 36 22 47
WIND DIR NE NE NE E E E SE SE SE S S SW SW W NW NW NW
WIND (MPH) 12 10 6 6 5 6 9 8 6 6 6 5 6 6 11 11 10
WIND GUST (MPH) 27
PRECIP PROB (%) 50 30 30 30 50 60 40 30 20 20 10 10 10 10 50 50 20
PRECIP TYPE S S S S S S S S S S S S S S S
6 HOUR QPF 0.02 0.02 0.02 0.02 0.00 0.00 0.00 0.03
12 HOUR QPF 0.04 0.04 0.00 0.03
LOW END QPF 0.00 0.00 0.00 0.00
HIGH END QPF 0.05 0.05 0.02 0.09
6 HOUR SNOW 0.3 0.3 0.3 0.2 0.0 0.0 0.0 0.1
12 HOUR SNOW 0.6 0.5 0.0 0.1
LOW END SNOW 0.0 0.0 0.0 0.0
HIGH END SNOW 0.7 0.6 0.1 0.2
SNOW LEVEL (KFT) 3.2 2.7 2.1 1.5 1.3 1.7 2.6 3.2 4.0 3.8 3.7 3.6 3.6 4.1 4.7 5.2 5.5
SNOW DENSITY (%) 7 6 6 6 6 5 6 7 9 10 10 10 10 10 12 16 20
..BEARS PAW MOUNTAINS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
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 SC BK SC SC BK BK SC SC FW SC FW SC SC SC
CLOUD COVER (%) 85 85 70 40 55 40 45 60 60 40 30 25 35 25 25 30 40
TEMPERATURE 29 23 20 17 16 23 31 37 38 30 27 25 26 35 43 47 47
MIN/MAX TEMP 15 39 24 48
WIND DIR NE NE NE NE E SE SE SE SE SE SE SE SW W W NW NW
WIND (MPH) 10 9 8 5 4 6 8 9 6 5 5 4 3 4 8 11 10
WIND GUST (MPH)
PRECIP PROB (%) 10 5 5 5 5 5 10 10 10 10 5 5 0 0 10 10 5
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 0.00 0.00 0.00 0.00
HIGH END QPF 0.01 0.00 0.00 0.01
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 0.0 0.0 0.0 0.0
HIGH END SNOW 0.1 0.0 0.0 0.0
SNOW LEVEL (KFT) 1.9 1.4 0.7 0.5 0.3 0.9 1.9 2.7 3.5 3.4 3.3 3.1 3.2 3.6 4.2 4.6 4.9
SNOW DENSITY (%) 6 6 6 5 5 5 6 8 11 11 11 10 11 11 12 16 20
..CASTLE/CRAZY MOUNTAINS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6P 9P 12 3A 6A 9A 12 3P 6P 9P 12 3A 6A 9A 12 3P 6P
CLOUD COVER OV OV OV OV OV OV OV OV BK SC SC SC SC SC BK BK SC
CLOUD COVER (%) 85 80 75 80 80 85 85 85 60 50 35 35 35 35 65 65 50
TEMPERATURE 30 25 23 22 21 24 29 34 35 28 25 24 24 31 39 43 42
MIN/MAX TEMP 21 36 23 44
WIND DIR E NE E E E E E E SE SE S SW SW W W W W
WIND (MPH) 13 12 10 9 8 8 9 8 8 5 4 5 6 11 17 17 14
WIND GUST (MPH) 31 39 39 35
PRECIP PROB (%) 50 40 40 40 40 60 50 40 20 20 5 5 10 10 50 50 20
PRECIP TYPE S S S S S S S S S S S S S S S
6 HOUR QPF 0.03 0.03 0.03 0.04 0.00 0.00 0.00 0.05
12 HOUR QPF 0.06 0.07 0.00 0.05
LOW END QPF 0.01 0.00 0.00 0.00
HIGH END QPF 0.08 0.08 0.03 0.15
6 HOUR SNOW 0.5 0.4 0.4 0.4 0.0 0.0 0.0 0.2
12 HOUR SNOW 0.9 0.8 0.0 0.2
LOW END SNOW 0.1 0.0 0.0 0.0
HIGH END SNOW 1.2 1.0 0.3 0.4
SNOW LEVEL (KFT) 4.1 3.6 3.0 2.6 2.4 2.7 3.5 4.1 4.8 4.6 4.3 4.2 4.1 4.6 5.1 5.5 5.9
SNOW DENSITY (%) 6 6 6 6 6 5 6 7 8 8 7 7 7 8 10 14 16
..BRIDGER RANGE
DATE MONDAY 04/27/26 TUESDAY 04/28/26
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6P 9P 12 3A 6A 9A 12 3P 6P 9P 12 3A 6A 9A 12 3P 6P
CLOUD COVER OV OV OV OV OV OV OV OV BK BK SC SC SC SC BK BK BK
CLOUD COVER (%) 80 75 80 85 85 90 85 75 55 50 35 35 40 45 65 65 55
TEMPERATURE 30 26 25 23 22 24 29 34 35 28 25 24 23 30 39 42 41
MIN/MAX TEMP 22 36 23 43
WIND DIR NE E E E SE SE SE SE SE SE SE S SW W W W W
WIND (MPH) 11 11 10 9 8 6 6 5 5 4 4 4 4 8 13 12 11
WIND GUST (MPH) 27 27 26 24 32 29 28
PRECIP PROB (%) 40 30 40 40 50 70 50 50 30 30 10 10 20 20 50 50 20
PRECIP TYPE S S S S S S S S S S S S S S S
6 HOUR QPF 0.02 0.03 0.04 0.05 0.01 0.00 0.00 0.03
12 HOUR QPF 0.05 0.09 0.01 0.03
LOW END QPF 0.00 0.00 0.00 0.00
HIGH END QPF 0.07 0.10 0.03 0.13
6 HOUR SNOW 0.3 0.4 0.6 0.5 0.1 0.0 0.0 0.1
12 HOUR SNOW 0.7 1.1 0.1 0.1
LOW END SNOW 0.1 0.0 0.0 0.0
HIGH END SNOW 1.0 1.3 0.2 0.3
SNOW LEVEL (KFT) 4.6 4.0 3.4 2.9 2.7 3.0 3.8 4.4 5.1 4.7 4.6 4.3 4.2 4.6 5.2 5.6 6.0
SNOW DENSITY (%) 7 6 6 6 6 5 6 7 9 8 8 8 7 8 11 14 16
..MADISON RANGE/SPANISH PEAKS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
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 OV OV OV OV OV BK BK SC SC SC SC BK BK BK
CLOUD COVER (%) 65 70 85 90 85 85 85 80 60 60 45 40 35 35 60 60 50
TEMPERATURE 30 24 22 21 20 23 28 31 31 25 22 20 19 26 34 37 37
MIN/MAX TEMP 20 32 19 38
WIND DIR N NE NE NE E SE W NW NW N SW SW SW W W W W
WIND (MPH) 11 9 6 5 4 4 6 8 6 4 4 4 4 5 10 10 9
WIND GUST (MPH) 28 27 26
PRECIP PROB (%) 40 30 50 50 60 70 70 70 40 40 10 10 20 20 40 40 20
PRECIP TYPE S S S S S S S S S S S S S S S
6 HOUR QPF 0.02 0.05 0.07 0.07 0.01 0.00 0.00 0.01
12 HOUR QPF 0.07 0.14 0.01 0.01
LOW END QPF 0.01 0.02 0.00 0.00
HIGH END QPF 0.12 0.19 0.03 0.09
6 HOUR SNOW 0.3 0.9 1.1 0.9 0.2 0.0 0.0 0.2
12 HOUR SNOW 1.2 2.0 0.2 0.2
LOW END SNOW 0.2 0.2 0.0 0.0
HIGH END SNOW 1.8 2.7 0.4 0.7
SNOW LEVEL (KFT) 5.7 5.0 4.5 4.2 3.9 4.3 5.0 5.2 5.8 5.5 5.1 4.9 4.7 5.0 5.5 5.8 6.2
SNOW DENSITY (%) 7 6 6 5 5 5 6 7 7 7 6 7 6 6 7 10 11
..GALLATIN RANGE/HYALITE MOUNTAINS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6P 9P 12 3A 6A 9A 12 3P 6P 9P 12 3A 6A 9A 12 3P 6P
CLOUD COVER OV OV OV OV OV OV OV OV BK BK SC SC SC SC BK BK BK
CLOUD COVER (%) 75 75 90 85 90 90 90 85 65 55 45 45 45 45 60 60 50
TEMPERATURE 29 23 21 20 20 23 28 31 32 25 22 20 19 27 35 38 38
MIN/MAX TEMP 19 33 19 39
WIND DIR NE NE E E E E N N N E SW SW SW W W W NW
WIND (MPH) 11 9 6 5 4 4 8 8 6 3 4 5 5 5 11 11 9
WIND GUST (MPH)
PRECIP PROB (%) 30 30 40 50 70 70 70 80 40 40 10 10 20 20 40 40 20
PRECIP TYPE S S S S S S S S S S S S S S S
6 HOUR QPF 0.01 0.04 0.06 0.08 0.02 0.00 0.00 0.03
12 HOUR QPF 0.05 0.14 0.02 0.03
LOW END QPF 0.01 0.02 0.00 0.00
HIGH END QPF 0.10 0.21 0.04 0.12
6 HOUR SNOW 0.2 0.7 0.9 1.1 0.2 0.0 0.0 0.3
12 HOUR SNOW 0.9 2.0 0.2 0.3
LOW END SNOW 0.1 0.2 0.0 0.0
HIGH END SNOW 1.6 2.8 0.6 0.9
SNOW LEVEL (KFT) 5.2 4.5 4.1 3.7 3.5 4.0 4.7 4.9 5.6 5.3 4.9 4.7 4.5 4.9 5.4 5.8 6.1
SNOW DENSITY (%) 7 6 6 5 5 5 6 6 7 7 6 7 6 6 8 10 11
..LIONHEAD RANGE
DATE MONDAY 04/27/26 TUESDAY 04/28/26
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 OV OV OV BK BK BK BK BK BK BK BK BK
CLOUD COVER (%) 75 80 85 75 70 80 75 75 65 65 65 50 55 55 65 65 55
TEMPERATURE 37 30 27 25 22 26 33 37 36 30 26 23 21 28 38 41 41
MIN/MAX TEMP 21 39 20 42
WIND DIR N NE NE NE E SW SW W W W E E SE W W W W
WIND (MPH) 6 6 6 5 3 5 9 9 8 4 3 2 2 4 9 9 8
WIND GUST (MPH)
PRECIP PROB (%) 50 40 40 30 50 50 50 60 50 50 20 20 30 30 50 50 20
PRECIP TYPE S S S S S S S S S S S S S S S S S
6 HOUR QPF 0.02 0.05 0.08 0.13 0.03 0.00 0.00 0.02
12 HOUR QPF 0.07 0.21 0.03 0.02
LOW END QPF 0.01 0.02 0.00 0.00
HIGH END QPF 0.14 0.26 0.09 0.11
6 HOUR SNOW 0.2 0.7 1.3 1.5 0.3 0.0 0.0 0.1
12 HOUR SNOW 0.9 2.8 0.3 0.1
LOW END SNOW 0.2 0.2 0.0 0.0
HIGH END SNOW 1.5 3.2 1.0 0.4
SNOW LEVEL (KFT) 6.5 5.6 5.1 4.7 4.4 4.9 5.6 5.6 6.1 5.8 5.5 5.1 4.7 5.2 5.7 6.0 6.3
SNOW DENSITY (%) 12 8 6 6 6 6 7 8 9 8 7 7 7 7 10 14 16
..TOBACCO ROOT MOUNTAINS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6P 9P 12 3A 6A 9A 12 3P 6P 9P 12 3A 6A 9A 12 3P 6P
CLOUD COVER OV OV OV OV OV OV OV BK BK BK SC SC SC SC BK BK BK
CLOUD COVER (%) 70 75 80 90 85 85 80 65 55 55 35 35 35 40 55 55 55
TEMPERATURE 30 24 23 22 21 23 27 31 32 27 24 23 22 28 36 39 38
MIN/MAX TEMP 20 33 22 40
WIND DIR NE NE NE NE NE NE N N N N W W SW SW W W W
WIND (MPH) 16 16 12 10 8 6 6 8 9 5 5 5 6 8 11 11 11
WIND GUST (MPH)
PRECIP PROB (%) 40 50 40 40 60 50 50 50 30 30 5 5 10 10 30 30 20
PRECIP TYPE S S S S S S S S S S S S S
6 HOUR QPF 0.08 0.05 0.05 0.07 0.02 0.00 0.00 0.00
12 HOUR QPF 0.13 0.12 0.02 0.00
LOW END QPF 0.02 0.00 0.00 0.00
HIGH END QPF 0.20 0.14 0.02 0.10
6 HOUR SNOW 1.3 0.9 0.8 0.9 0.2 0.0 0.0 0.0
12 HOUR SNOW 2.2 1.7 0.2 0.0
LOW END SNOW 0.3 0.0 0.0 0.0
HIGH END SNOW 3.1 2.0 0.3 0.6
SNOW LEVEL (KFT) 5.2 4.6 4.0 3.5 3.3 3.7 4.5 4.9 5.6 5.4 5.0 4.7 4.5 4.9 5.3 5.9 6.3
SNOW DENSITY (%) 7 6 6 5 5 5 6 7 7 7 7 7 6 7 8 11 12
..SNOWCREST/GRAVELLY/RUBY/BLACKTAIL RANGES
DATE MONDAY 04/27/26 TUESDAY 04/28/26
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 OV OV OV OV OV BK BK SC SC SC FW SC BK BK
CLOUD COVER (%) 60 70 90 90 90 85 75 70 65 55 45 35 30 25 45 55 55
TEMPERATURE 36 28 26 25 24 25 31 35 35 28 25 24 22 29 38 41 41
MIN/MAX TEMP 23 37 22 42
WIND DIR N NE NE NE NE N NW NW NW N NW W W W W W W
WIND (MPH) 13 12 10 8 5 5 8 9 9 5 4 4 4 6 11 12 11
WIND GUST (MPH)
PRECIP PROB (%) 30 40 40 60 70 70 60 50 30 30 5 5 5 5 30 30 10
PRECIP TYPE S S S S S S S S S S S S
6 HOUR QPF 0.02 0.06 0.05 0.05 0.02 0.00 0.00 0.00
12 HOUR QPF 0.08 0.10 0.02 0.00
LOW END QPF 0.02 0.00 0.00 0.00
HIGH END QPF 0.17 0.15 0.03 0.05
6 HOUR SNOW 0.2 1.0 0.9 0.6 0.2 0.0 0.0 0.0
12 HOUR SNOW 1.2 1.5 0.2 0.0
LOW END SNOW 0.2 0.1 0.0 0.0
HIGH END SNOW 2.4 1.8 0.3 0.2
SNOW LEVEL (KFT) 5.8 5.2 4.7 4.3 4.0 4.3 5.0 5.2 5.8 5.6 5.3 5.1 4.8 5.0 5.5 5.8 6.2
SNOW DENSITY (%) 10 7 6 6 6 5 6 8 8 8 7 7 7 7 9 12 16
..CENTENNIAL MOUNTAINS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6P 9P 12 3A 6A 9A 12 3P 6P 9P 12 3A 6A 9A 12 3P 6P
CLOUD COVER OV OV OV OV OV OV OV OV OV BK SC SC SC SC BK BK BK
CLOUD COVER (%) 75 85 90 80 75 80 80 80 70 60 50 40 35 35 60 60 55
TEMPERATURE 36 30 27 26 25 26 31 35 34 29 26 25 23 29 37 39 39
MIN/MAX TEMP 24 35 22 40
WIND DIR N NE NE NE NE NE W W NW N N NW NW W W W W
WIND (MPH) 10 11 11 10 8 8 10 11 10 8 6 6 6 6 12 12 11
WIND GUST (MPH)
PRECIP PROB (%) 50 50 50 50 60 70 70 70 40 40 10 10 20 20 40 40 20
PRECIP TYPE S S S S S S S S S S S S S S S
6 HOUR QPF 0.03 0.06 0.10 0.17 0.01 0.00 0.00 0.01
12 HOUR QPF 0.09 0.27 0.01 0.01
LOW END QPF 0.01 0.02 0.00 0.00
HIGH END QPF 0.16 0.32 0.03 0.07
6 HOUR SNOW 0.4 0.9 1.6 2.1 0.2 0.0 0.0 0.1
12 HOUR SNOW 1.3 3.7 0.2 0.1
LOW END SNOW 0.2 0.2 0.0 0.0
HIGH END SNOW 1.9 4.4 0.3 0.2
SNOW LEVEL (KFT) 6.2 5.6 5.1 4.7 4.3 4.6 5.4 5.5 6.1 5.9 5.4 5.2 4.8 5.2 5.7 6.0 6.3
SNOW DENSITY (%) 10 7 6 6 6 6 6 8 9 8 7 7 7 7 10 12 16
..ANACONDA/HIGHLAND RANGES
DATE MONDAY 04/27/26 TUESDAY 04/28/26
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 OV OV BK BK BK BK SC SC SC SC SC BK BK BK
CLOUD COVER (%) 70 70 75 80 70 65 65 65 55 50 35 30 30 30 55 60 50
TEMPERATURE 34 27 24 22 21 25 31 35 35 29 25 24 22 28 37 40 41
MIN/MAX TEMP 21 37 22 41
WIND DIR N NE NE NE N NW NW NW NW NW NW W W SW W W W
WIND (MPH) 11 11 9 6 4 3 6 8 8 5 4 3 3 5 9 9 9
WIND GUST (MPH) 31 35 29 25 25
PRECIP PROB (%) 40 30 20 20 30 20 40 50 20 20 0 0 10 10 40 40 10
PRECIP TYPE S S S S S S S S S S S S S
6 HOUR QPF 0.02 0.02 0.03 0.06 0.01 0.00 0.00 0.02
12 HOUR QPF 0.04 0.09 0.01 0.02
LOW END QPF 0.00 0.00 0.00 0.00
HIGH END QPF 0.11 0.14 0.02 0.12
6 HOUR SNOW 0.4 0.2 0.4 0.7 0.1 0.0 0.0 0.2
12 HOUR SNOW 0.6 1.1 0.1 0.2
LOW END SNOW 0.0 0.0 0.0 0.0
HIGH END SNOW 1.8 1.7 0.3 0.4
SNOW LEVEL (KFT) 5.2 4.7 4.0 3.7 3.4 3.9 4.6 4.9 5.6 5.4 5.1 4.7 4.4 4.8 5.4 5.9 6.3
SNOW DENSITY (%) 7 6 6 6 6 6 6 8 8 8 7 7 6 7 9 12 14
..PIONEER MOUNTAINS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6P 9P 12 3A 6A 9A 12 3P 6P 9P 12 3A 6A 9A 12 3P 6P
CLOUD COVER OV OV OV OV OV OV OV OV BK BK SC SC SC SC BK BK BK
CLOUD COVER (%) 80 80 85 85 80 75 75 75 55 50 35 30 30 30 55 55 55
TEMPERATURE 32 27 24 22 21 24 30 34 33 27 23 22 20 27 35 39 39
MIN/MAX TEMP 20 35 20 40
WIND DIR N NE NE NE N NW NW NW NW NW W W W W W W W
WIND (MPH) 11 11 8 5 3 3 6 8 9 6 5 5 5 6 10 11 10
WIND GUST (MPH) 31 20 23 27
PRECIP PROB (%) 50 40 30 40 40 40 60 60 30 30 0 0 10 10 30 30 10
PRECIP TYPE S S S S S S S S S S S S S
6 HOUR QPF 0.06 0.03 0.04 0.07 0.02 0.00 0.00 0.01
12 HOUR QPF 0.09 0.11 0.02 0.01
LOW END QPF 0.02 0.00 0.00 0.00
HIGH END QPF 0.15 0.17 0.02 0.10
6 HOUR SNOW 0.9 0.5 0.6 0.8 0.2 0.0 0.0 0.1
12 HOUR SNOW 1.4 1.4 0.2 0.1
LOW END SNOW 0.2 0.0 0.0 0.0
HIGH END SNOW 2.3 2.2 0.3 0.5
SNOW LEVEL (KFT) 5.5 4.9 4.3 3.9 3.7 4.1 4.8 5.1 5.6 5.4 5.0 4.8 4.5 4.9 5.4 5.9 6.3
SNOW DENSITY (%) 7 6 5 5 5 5 6 7 7 7 6 6 6 7 8 11 12
..BEAVERHEAD/TENDOY MOUNTAINS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
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 OV OV OV BK BK BK BK SC SC FW SC SC SC SC
CLOUD COVER (%) 65 85 95 95 85 75 70 70 55 55 40 30 25 25 45 50 45
TEMPERATURE 36 29 26 24 23 26 31 34 34 28 24 23 21 28 36 40 40
MIN/MAX TEMP 22 36 21 41
WIND DIR N N N N N N NW NW NW NW W W W W W W W
WIND (MPH) 12 12 11 9 6 6 9 10 11 9 6 6 5 8 11 12 11
WIND GUST (MPH)
PRECIP PROB (%) 30 50 40 60 60 30 50 50 30 30 5 5 10 10 30 30 10
PRECIP TYPE S S S S S S S S S S S S
6 HOUR QPF 0.07 0.06 0.04 0.06 0.02 0.00 0.00 0.00
12 HOUR QPF 0.13 0.10 0.02 0.00
LOW END QPF 0.02 0.01 0.00 0.00
HIGH END QPF 0.25 0.16 0.02 0.05
6 HOUR SNOW 1.1 1.1 0.6 0.7 0.2 0.0 0.0 0.0
12 HOUR SNOW 2.2 1.3 0.2 0.0
LOW END SNOW 0.2 0.1 0.0 0.0
HIGH END SNOW 3.8 2.0 0.3 0.2
SNOW LEVEL (KFT) 5.8 5.5 4.9 4.4 4.1 4.4 5.0 5.2 5.7 5.5 5.2 5.0 4.6 5.0 5.5 5.9 6.2
SNOW DENSITY (%) 9 6 6 5 5 5 6 7 8 7 6 7 6 7 8 11 14
..ABSORAKA-BEARTOOTH/COOKE CITY MOUNTAINS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6P 9P 12 3A 6A 9A 12 3P 6P 9P 12 3A 6A 9A 12 3P 6P
CLOUD COVER OV OV OV OV OV OV OV OV OV OV BK BK BK BK OV OV BK
CLOUD COVER (%) 90 80 80 85 85 75 85 90 75 75 55 55 55 55 80 80 60
TEMPERATURE 25 19 17 16 15 20 27 29 27 21 17 15 14 20 29 33 32
MIN/MAX TEMP 14 30 13 33
WIND DIR NE NE NE NE E SE SW W NW NW W W W W W W W
WIND (MPH) 10 9 8 5 4 5 9 11 8 4 3 3 3 5 11 11 10
WIND GUST (MPH)
PRECIP PROB (%) 70 50 50 50 50 50 70 80 70 70 20 20 40 40 70 70 40
PRECIP TYPE
6 HOUR QPF 0.01 0.04 0.06 0.16 0.04 0.01 0.00 0.05
12 HOUR QPF 0.05 0.22 0.05 0.05
LOW END QPF 0.02 0.07 0.00 0.00
HIGH END QPF 0.12 0.29 0.06 0.11
6 HOUR SNOW 0.2 0.6 1.0 2.4 0.7 0.2 0.0 0.6
12 HOUR SNOW 0.8 3.4 0.9 0.6
LOW END SNOW 0.3 1.0 0.0 0.0
HIGH END SNOW 1.9 4.3 0.9 1.2
SNOW LEVEL (KFT) 5.4 4.5 4.0 3.7 3.8 4.5 5.4 5.2 5.7 5.4 4.9 4.8 4.5 4.9 5.5 5.8 6.1
SNOW DENSITY (%) 6 6 6 5 5 5 6 6 6 6 6 6 6 6 6 8 9
..ABSORAKA MOUNTAINS ABOVE 6000FT NORTHEAST FACING
DATE MONDAY 04/27/26 TUESDAY 04/28/26
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6P 9P 12 3A 6A 9A 12 3P 6P 9P 12 3A 6A 9A 12 3P 6P
CLOUD COVER OV OV OV OV OV OV OV OV OV OV SC SC BK BK OV OV BK
CLOUD COVER (%) 95 95 90 90 90 80 85 90 80 75 45 45 55 55 75 75 60
TEMPERATURE 23 20 19 17 16 20 24 26 26 21 19 18 17 26 32 35 35
MIN/MAX TEMP 16 28 17 36
WIND DIR NE NE NE NE SE E NE N N SW SW SW SW W NW NW NW
WIND (MPH) 13 11 10 8 6 8 11 11 8 5 6 8 9 9 13 13 12
WIND GUST (MPH) 39 36 33 31 29 28 33 33 33
PRECIP PROB (%) 80 60 60 50 60 60 70 70 60 60 20 20 30 30 60 60 40
PRECIP TYPE
6 HOUR QPF 0.07 0.05 0.05 0.14 0.03 0.01 0.00 0.05
12 HOUR QPF 0.12 0.19 0.04 0.05
LOW END QPF 0.04 0.04 0.00 0.01
HIGH END QPF 0.18 0.25 0.05 0.12
6 HOUR SNOW 1.1 0.8 0.9 2.1 0.5 0.1 0.0 0.5
12 HOUR SNOW 1.9 3.0 0.6 0.5
LOW END SNOW 0.6 0.6 0.0 0.1
HIGH END SNOW 2.7 3.6 0.7 1.1
SNOW LEVEL (KFT) 4.7 4.2 3.7 3.3 3.2 3.7 4.3 4.6 5.2 4.9 4.5 4.4 4.3 4.8 5.4 5.8 6.1
SNOW DENSITY (%) 6 6 6 5 5 5 6 6 6 7 7 7 7 7 7 9 10
..ABSORAKA MOUNTAINS ABOVE 6000FT WEST FACING
DATE MONDAY 04/27/26 TUESDAY 04/28/26
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6P 9P 12 3A 6A 9A 12 3P 6P 9P 12 3A 6A 9A 12 3P 6P
CLOUD COVER OV OV OV OV OV OV OV OV OV BK BK SC SC SC BK BK BK
CLOUD COVER (%) 80 80 85 85 80 75 80 80 70 65 55 50 50 45 65 65 55
TEMPERATURE 31 25 22 21 20 24 30 33 32 26 22 20 19 26 35 38 37
MIN/MAX TEMP 19 34 18 39
WIND DIR N NE NE NE E SE SW W NW NW W SW SW W W W W
WIND (MPH) 10 8 6 5 4 4 9 10 8 4 3 3 4 5 10 10 9
WIND GUST (MPH) 33 29 25 23 31 32 29 21 24 32 32 31
PRECIP PROB (%) 50 30 40 40 50 60 70 70 40 40 10 10 20 20 50 50 20
PRECIP TYPE S S S S S S S S S S S S S S S
6 HOUR QPF 0.02 0.04 0.06 0.11 0.03 0.00 0.00 0.03
12 HOUR QPF 0.06 0.17 0.03 0.03
LOW END QPF 0.02 0.04 0.00 0.00
HIGH END QPF 0.11 0.24 0.05 0.11
6 HOUR SNOW 0.3 0.6 0.9 1.5 0.4 0.0 0.0 0.3
12 HOUR SNOW 0.9 2.4 0.4 0.3
LOW END SNOW 0.2 0.5 0.0 0.0
HIGH END SNOW 1.6 3.2 0.7 0.9
SNOW LEVEL (KFT) 5.7 4.9 4.3 4.0 3.9 4.4 5.2 5.2 5.8 5.5 5.1 4.9 4.6 5.0 5.5 5.9 6.2
SNOW DENSITY (%) 7 6 6 5 5 6 6 7 7 7 7 7 6 7 8 10 11
..CRAZY MOUNTAINS
DATE MONDAY 04/27/26 TUESDAY 04/28/26
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
6P 9P 12 3A 6A 9A 12 3P 6P 9P 12 3A 6A 9A 12 3P 6P
CLOUD COVER OV OV OV OV OV OV OV OV OV BK SC SC SC SC BK BK BK
CLOUD COVER (%) 90 90 85 90 95 90 90 90 70 55 40 40 45 45 70 70 55
TEMPERATURE 27 23 22 20 20 22 25 29 30 25 22 21 23 30 36 39 39
MIN/MAX TEMP 19 31 21 40
WIND DIR NE E E E SE E E SE S SE SW W W W W W W
WIND (MPH) 13 14 12 10 9 10 10 9 8 6 5 8 9 12 18 18 16
WIND GUST (MPH) 31 33 26 26 26 32 39 39 37
PRECIP PROB (%) 60 50 60 60 60 80 60 60 30 30 10 10 20 20 50 50 30
PRECIP TYPE S S S S S S S S S S S S S S S
6 HOUR QPF 0.06 0.04 0.04 0.06 0.01 0.00 0.00 0.04
12 HOUR QPF 0.10 0.10 0.01 0.04
LOW END QPF 0.02 0.00 0.00 0.00
HIGH END QPF 0.14 0.13 0.03 0.11
6 HOUR SNOW 0.9 0.6 0.7 0.8 0.1 0.0 0.0 0.3
12 HOUR SNOW 1.5 1.5 0.1 0.3
LOW END SNOW 0.3 0.0 0.0 0.0
HIGH END SNOW 2.0 1.9 0.3 0.6
SNOW LEVEL (KFT) 4.2 3.7 3.1 2.8 2.5 2.8 3.5 4.0 4.7 4.5 4.3 4.2 4.2 4.7 5.2 5.6 6.0
SNOW DENSITY (%) 6 6 5 5 5 5 5 6 7 7 7 7 7 7 9 11 12
--- PRECIP TYPE CODES ---
CODE TYPE
T THUNDERSTORMS
R RAIN
S SNOW
I SLEET
Z FREEZING RAIN
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