407
FNUS75 KTFX 111240
FWSTFX
SPOT FORECAST FOR JUDITH PEAK RX...BLM
NATIONAL WEATHER SERVICE GREAT FALLS MT
540 AM MST THU DEC 11 2025
FORECAST IS BASED ON IGNITION TIME OF 0700 MST ON DECEMBER 11.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
..STRONG WINDS AT TIMES BEFORE COLDER AIR AND SNOW ARRIVE.
DISCUSSION
EXPECT PERIODS OF WINDY CONDITIONS TODAY, BEFORE A COLD ARRIVES
THIS AFTERNOON. RAIN/SNOW WILL CHANGE TO ALL SNOW TONIGHT. EXPECT
PERIODS OF ACCUMULATING SNOW ON FRIDAY.
REST OF TODAY
SKY/WEATHER.........CLOUDY (85-95 PERCENT). RAIN IN THE MORNING,
THEN RAIN, SNOW LIKELY AND SLIGHT CHANCE OF
LIGHT SLEET IN THE AFTERNOON.
CWR.................70 PERCENT DECREASING TO 15 PERCENT LATE IN THE
AFTERNOON.
MAX TEMPERATURE.....44-49.
MIN HUMIDITY........76-81 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WINDY. WEST WINDS 25 TO 30 MPH WITH GUSTS TO
AROUND 55 MPH BECOMING NORTHWEST 15 TO 20 MPH
WITH GUSTS TO AROUND 35 MPH IN THE AFTERNOON.
MIXING HEIGHT.......1500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 30 TO 35 MPH DECREASING TO AROUND 15
MPH.
TIME (MST) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........97 98 97 97 96 97 97 97 98 98 84
WEATHER COV.....LKY LKY DEF LKY DEF LKY CHC CHC SCH SCH SCH
WEATHER TYPE....RN RN RN RN RN RS RS SN SN SN SN
TSTM COV........
CWR.............70 70 70 70 70 70 70 70 70 70 20
TEMP............46 44 44 43 44 40 36 34 26 23 21
RH..............81 81 82 94 100 100 100 100 100 97 93
20 FT WIND DIR..W W W W NW NW NW NW NW NW NW
20 FT WIND SPD..30 30 30 30 25 25 20 20 20 15 15
20 FT WIND GUST.55 55 55 50 45 40 35 30 30 30 25
MIX HGT (KFT)...0.1 0.1 0.5 1.0 1.0 1.5 1.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.W W W W NW NW NW NW NW NW NW
TRANSP WIND SPD.35 35 35 35 30 35 30 25 25 20 15
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF SNOW
IN THE EVENING, THEN SNOW OVERNIGHT.
CWR.................15 PERCENT INCREASING TO 55 PERCENT.
MIN TEMPERATURE.....2-7.
MAX HUMIDITY........95-100 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHWEST WINDS 10 TO 15 MPH.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........89 82 71 74 81 94 95 97 98 97 96 97
WEATHER COV..... SCH CHC SCH SCH CHC CHC CHC CHC DEF
WEATHER TYPE.... SN SN SN SN SN SN SN SN SN
TSTM COV........
CWR.............20 20 20 20 20 40 40 40 40 40 40 60
TEMP............20 20 18 17 16 16 15 15 15 14 11 10
RH..............90 87 84 84 85 80 83 82 81 80 80 80
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW N N N
20 FT WIND SPD..15 15 15 10 10 10 10 10 10 10 10 10
20 FT WIND GUST.25 25 20 20 20 15 15 15 15 15 15 15
MIX HGT (KFT)...0.5 0.5 0.5 0.5 0.5 0.5 1.0 1.0 0.5 0.5 0.5 0.5
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW N NW NW
TRANSP WIND SPD.15 15 15 10 10 10 10 10 10 10 10 10
FRIDAY
SKY/WEATHER.........CLOUDY (90-100 PERCENT). SNOW, THEN SNOW LIKELY
LATE IN THE AFTERNOON.
CWR.................55 PERCENT INCREASING TO 80 PERCENT LATE IN THE
MORNING, THEN DECREASING TO 60 PERCENT LATE IN
THE AFTERNOON.
MAX TEMPERATURE.....7-12.
MIN HUMIDITY........75-80 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTH WINDS AROUND 10 MPH SHIFTING TO THE EAST
EARLY IN THE MORNING, THEN SHIFTING TO THE
NORTHEAST EARLY IN THE MORNING SHIFTING TO THE
EAST IN THE LATE MORNING AND AFTERNOON.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH SHIFTING TO THE
NORTHEAST EARLY IN THE MORNING, THEN SHIFTING
TO THE SOUTHEAST IN THE LATE MORNING AND
AFTERNOON.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........97 97 97 97 97 97 97 97 97 97 97 95
WEATHER COV.....DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF LKY
WEATHER TYPE....SN SN SN SN SN SN SN SN SN SN SN SN
TSTM COV........
CWR.............60 60 60 60 60 80 80 80 80 80 80 60
TEMP............8 5 6 5 4 3 4 6 7 6 5 5
RH..............80 81 83 88 96 99 97 98 100 99 98 95
20 FT WIND DIR..S E NE NE E E E E E E E SE
20 FT WIND SPD..10 5 10 10 10 10 10 10 10 10 10 10
20 FT WIND GUST.15 15 15 15 15 15 15 15 15 15 15 20
MIX HGT (KFT)...0.5 0.5 0.5 0.1 0.1 0.5 0.5 0.5 0.1 0.1 0.1 0.1
TRANSP WIND DIR.NW NW NE SE SE SE SE SE SE SE SE SE
TRANSP WIND SPD.10 10 10 10 10 10 10 10 10 10 10 10
FORECASTER...BRUSDA
REQUESTED BY...CASE PARKER
TYPE OF REQUEST...PRESCRIBED
.TAG 2527105.3/TFX
.DELDT 12/11/25
.FORMATTERVERSION 2.0.0
.EMAIL CPARKER@BLM.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page