347
FNUS75 KTFX 271109
FWSTFX
SPOT FORECAST FOR SHOWDOWN PILES...USFS
NATIONAL WEATHER SERVICE GREAT FALLS MT
509 AM MDT TUE OCT 27 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 MDT ON OCTOBER 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
LIGHT SNOW TODAY, WITH THE HEAVIEST PRECIPITATION FALLING THIS
MORNING. A FEW SCATTERED SNOW SHOWERS THE NEXT FEW DAYS, BUT
AGAIN, ANY SNOWFALL AFTER TODAY WILL BE LIGHT BEFORE SATURDAY. A
BETTER SNOWFALL IS EXPECTED ON SUNDAY. IT WILL BE WINDY AT TIMES
TODAY, ESPECIALLY AT RIDGE TOPS. WINDS WILL BE LIGHTER LATER THIS
WEEK.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT). SLIGHT CHANCE OF
SNOW.
CWR.................5 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....32-37.
MIN HUMIDITY........64-69 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHWEST WINDS 10 TO 15 MPH.
MIXING HEIGHT.......4500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH SHIFTING TO THE WEST
AROUND 10 MPH LATE IN THE AFTERNOON.
TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........44 44 34 34 34 28 28 28 32 32 32
WEATHER COV..... SCH SCH SCH
WEATHER TYPE.... SN SN SN
TSTM COV........
CWR.............0 0 0 0 0 10 10 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0
TEMP............22 22 22 24 25 29 31 32 33 32 29
RH..............98 98 100 99 95 85 79 75 69 69 76
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..10 10 10 10 10 15 15 15 10 10 10
20 FT WIND GUST.20 20 25 25 25 25 25 25 25 25 25
MIX HGT (KFT)...0.5 1.0 1.5 2.0 2.5 3.0 4.0 4.5 4.5 3.5 1.5
TRANSP WIND DIR.SW SW SW SW SW SW SW W W W W
TRANSP WIND SPD.15 15 15 15 20 20 15 15 20 15 10
WEDNESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....15-20.
MAX HUMIDITY........92-97 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTH WINDS AROUND 5 MPH.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........38 38 38 37 37 37 44 44 44 48 48 48
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............10 10 10 10 10 10 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............27 25 24 24 24 24 23 22 21 19 19 18
RH..............86 86 86 87 88 89 90 92 94 96 96 96
20 FT WIND DIR..S S S S S S S S S S S S
20 FT WIND SPD..5 5 5 5 5 5 5 5 5 5 5 5
20 FT WIND GUST.15 15 15 15 15 15 10 10 10 10 10 10
MIX HGT (KFT)...0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.SW S S S S S S S S S S S
TRANSP WIND SPD.10 10 10 10 10 10 10 10 10 10 10 10
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY (45-55 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....35-40.
MIN HUMIDITY........63-68 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTH WINDS AROUND 5 MPH SHIFTING TO THE WEST
IN THE AFTERNOON.
MIXING HEIGHT.......4500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH SHIFTING TO THE
SOUTHEAST LATE IN THE AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........49 49 49 49 49 49 43 43 43 56 56 56
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............18 18 17 19 22 26 30 33 35 36 34 31
RH..............95 96 97 96 91 84 77 71 68 68 76 87
20 FT WIND DIR..S S S S S S SW SW SW W W W
20 FT WIND SPD..5 5 5 5 5 5 5 5 5 5 5 5
20 FT WIND GUST.10 10 10 10 10 10 10 10 10 10 10 10
MIX HGT (KFT)...0.5 0.1 0.1 0.5 1.5 3.0 4.0 4.5 4.5 4.0 3.0 1.5
TRANSP WIND DIR.S S S S SW SW SW SW SW SW S SE
TRANSP WIND SPD.10 10 10 10 10 10 15 15 10 10 10 10
FORECASTER...BRUSDA
REQUESTED BY...TRAVIS JOHNSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2624560.0/TFX
.DELDT 10/27/26
.FORMATTERVERSION 2.0.0
.EMAIL TRAVIS.JOHNSON4@USDA.GOV
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