999
FNUS75 KTFX 202342
FWSTFX
SPOT FORECAST FOR SMITH GULCH...HIDC
NATIONAL WEATHER SERVICE GREAT FALLS MT
542 PM MDT THU AUG 20 2026
FORECAST IS BASED ON FORECAST START TIME OF 1800 MDT ON AUGUST 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
QUITE CONDITIONS ARE EXPECTED TONIGHT. DRY AND WARM CONDITIONS ARE
EXPECTED DURING THE DAY ON FRIDAY. THERE IS A SMALL CHANCE FOR
SHOWER/THUNDERSTORM TOWARDS DAWN ON SATURDAY MORNING. THERE IS A
BETTER CHANCE FOR STORMS ON SATURDAY DURING THE MID MORNING HOURS
AND AGAIN TOWARDS THE EVENING HOURS ON SATURDAY. SOME STORMS COULD
PRODUCE STRONG WIND GUSTS.
TONIGHT
SKY/WEATHER.........BECOMING PARTLY CLOUDY (30-40 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....59-64.
MAX HUMIDITY........35-40 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......EAST WINDS 5 TO 10 MPH BECOMING DOWNSLOPE.
RIDGETOP...........LIGHT AND VARIABLE OVERNIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH DECREASING TO AROUND 5
MPH EARLY IN THE EVENING.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........9 17 19 31 37 53 55 49 45 44 24 31
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............89 87 83 77 75 73 71 69 68 67 65 63
RH..............17 19 23 26 28 30 32 32 34 35 37 38
20 FT WIND DIR..E E E W W W W W W W NW NW
20 FT WIND SPD..10 5 5 5 5 5 5 0 0 0 0 0
20 FT WIND GUST.15 15 10 5 5 5 5 5
RIDGE WIND DIR..W NW NW N N NE E NE N NW NW NW
RIDGE WIND SPD..15 15 10 10 5 5 0 0 0 5 0 0
MIX HGT (KFT)...8.5 4.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.W NW N NW W W W W W W NW N
TRANSP WIND SPD.15 10 5 5 5 5 5 5 5 5 10 10
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....88-92.
MIN HUMIDITY........15-20 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING UPSLOPE 5 TO 10 MPH IN
THE LATE MORNING AND AFTERNOON.
RIDGETOP...........LIGHT AND VARIABLE AT 4 TO 8 MPH.
MIXING HEIGHT.......5500 FT AGL.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........41 62 33 25 23 23 22 20 24 26 29 32
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............63 62 65 67 72 74 77 81 84 86 89 91
RH..............40 40 40 40 39 38 35 32 21 17 16 15
20 FT WIND DIR..NW NW N N NE NE NE NE NE NE NE NE
20 FT WIND SPD..0 0 0 0 5 5 5 10 10 10 10 10
20 FT WIND GUST.5 5 5 5 10 10 15 15 15 15 15 15
RIDGE WIND DIR..NW W W W W W SW W W W NW N
RIDGE WIND SPD..0 0 5 5 5 5 5 5 5 5 5 5
MIX HGT (KFT)...0.5 0.5 0.5 1.0 1.5 2.0 2.5 3.0 4.0 5.0 5.5 4.5
TRANSP WIND DIR.N N N N N N N N NW N N N
TRANSP WIND SPD.10 10 5 5 5 5 5 10 10 10 10 10
FRIDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). ISOLATED
SHOWER OR THUNDERSTORM TOWARDS DAYBREAK.
CWR.................5 PERCENT.
CHANCE OF THUNDER...5 PERCENT.
MIN TEMPERATURE.....60-65.
MAX HUMIDITY........45-50 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTH WINDS AROUND 5 MPH IN THE EVENING
BECOMING LIGHT.
RIDGETOP...........NORTHEAST 5 TO 10 MPH SHIFTING TO THE SOUTH 10
TO 15 MPH OVERNIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH SHIFTING TO THE EAST
OVERNIGHT.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........77 77 77 84 84 84 69 69 69 89 89 89
WEATHER COV..... SCH
WEATHER TYPE.... RW
TSTM COV........ SCH
CWR.............0 0 0 0 0 0 10 10 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 10 10 10
TEMP............88 86 83 78 75 74 72 70 69 68 66 65
RH..............22 24 27 31 34 36 38 40 42 45 46 48
20 FT WIND DIR..N N N NW NW NW NW NW NW N N N
20 FT WIND SPD..5 5 5 5 5 5 0 0 0 0 0 0
20 FT WIND GUST.15 15 15 10 10 10 5 5 5
RIDGE WIND DIR..NE NE E E E E E SE SE S S S
RIDGE WIND SPD..5 5 10 10 15 15 15 10 10 10 10 15
MIX HGT (KFT)...4.0 2.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.N N N N N N N NE E SE E E
TRANSP WIND SPD.10 10 10 10 10 10 5 5 5 5 5 5
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY (80-95 PERCENT). SCATTERED
SHOWERS AND THUNDERSTORMS. SOME STORMS
COULD PRODUCE STRONG ERRATIC WIND GUSTS.
CWR.................10 PERCENT.
CHANCE OF THUNDER...25 PERCENT.
MAX TEMPERATURE.....84-89.
MIN HUMIDITY........23-28 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING SOUTHEAST AROUND 5 MPH
EARLY IN THE AFTERNOON. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGETOP...........SOUTH 15 TO 20 MPH SHIFTING TO THE WEST 10 TO
15 MPH IN THE AFTERNOON.
MIXING HEIGHT.......5500 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH SHIFTING TO THE
SOUTHWEST BY LATE AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........96 96 96 66 66 66 63 63 63 73 73 73
WEATHER COV.....SCH SCH SCH SCH SCH SCH CHC CHC CHC CHC CHC CHC
WEATHER TYPE....RN RN RN RN RN RN RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH CHC CHC CHC
CWR.............10 10 10 10 10 10 10 10 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 20 20 20 30 30 30
TEMP............64 63 64 68 71 75 78 81 84 85 86 85
RH..............50 50 50 49 46 43 39 36 34 30 28 26
20 FT WIND DIR..N N N SE SE SE SE SE SE W W W
20 FT WIND SPD..0 0 0 0 0 0 5 5 5 10 10 10
20 FT WIND GUST.5 5 5 5 5 5 15 15 15 15 15 15
RIDGE WIND DIR..S S S S SW SW SW SW W W W W
RIDGE WIND SPD..15 20 20 20 15 15 10 10 10 15 10 10
MIX HGT (KFT)...0.5 0.5 0.5 1.0 1.5 2.0 2.5 3.5 4.5 5.0 5.5 5.5
TRANSP WIND DIR.SE S S S S S S S SW W W SW
TRANSP WIND SPD.5 5 5 10 10 10 10 10 15 15 15 15
FORECASTER...BRUSDA
REQUESTED BY...RCH
TYPE OF REQUEST...WILDFIRE
.TAG 2620054.1/TFX
.DELDT 08/20/26
.FORMATTERVERSION 2.0.0
.EMAIL MTHDC@FIRENET.GOV,SETH.BOND@USDA.GOV
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