522
FNUS75 KTFX 091441
FWSTFX
SPOT FORECAST FOR BEAR GULCH...USFS
NATIONAL WEATHER SERVICE GREAT FALLS MT
841 AM MDT WED SEP 9 2026
FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON SEPTEMBER 09.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WINDS WILL BE THE PRIMARY FACTOR WITH WESTERLY WINDS SHIFTING TO
SOUTHWESTERLY BY 8 PM. THERE IS A 10% PROBABILITY FOR WIND GUSTS
OF UP TO 25 MPH FROM 2 PM TO 5 PM ON WEDNESDAY. MOST LIKELY GUSTS
WILL BE 18 TO 22 MPH FOR THIS AFTERNOON. OVERNIGHT WINDS WILL
SHIFT MORE SOUTHERLY AND DECREASE TO 6 TO 10 MPH WITH GUSTS OF UP
TO 15 MPH. RELATIVE HUMIDITY WILL DROP TO 27% FOR WEDNESDAY AND
19% FOR THURSDAY FOR THE MINIMUMS. NO RAIN IS EXPECTED FOR
WEDNESDAY WITH A 20% TO 25% CHANCE FOR WETTING RAIN THURSDAY
EVENING.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....71-76.
MIN HUMIDITY........22-27 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 10 TO 15 MPH.
MIXING HEIGHT.......6000 FT AGL.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
TIME (MDT) 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........6 9 8 4 5 7
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0
TEMP............65 69 72 72 73 73
RH..............36 32 28 27 27 27
20 FT WIND DIR..W W W W W W
20 FT WIND SPD..10 15 15 15 15 15
20 FT WIND GUST.20 25 25 25 25 25
MIX HGT (KFT)...4.5 5.0 6.0 5.5 6.0 5.5
TRANSP WIND DIR.W W W W W W
TRANSP WIND SPD.15 20 20 20 20 20
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....51-56.
MAX HUMIDITY........41-46 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 MPH SHIFTING TO THE SOUTHWEST IN THE LATE
EVENING AND OVERNIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....WEST 15 TO 20 MPH SHIFTING TO THE SOUTHWEST
AROUND 10 MPH EARLY IN THE EVENING, THEN
BECOMING 10 TO 15 MPH OVERNIGHT.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........7 12 23 23 20 26 23 19 22 35 43 50
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............71 71 67 62 61 59 59 58 57 56 56 55
RH..............27 30 35 40 43 44 42 40 40 39 42 44
20 FT WIND DIR..W W SW SW SW SW S S S S SW SW
20 FT WIND SPD..10 10 10 10 10 10 10 10 10 10 10 10
20 FT WIND GUST.25 20 15 20 20 20 20 20 15 15 15 15
MIX HGT (KFT)...4.5 2.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.W W W SW SW SW SW S SW SW SW SW
TRANSP WIND SPD.20 15 10 10 10 10 10 15 15 10 10 10
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) THEN BECOMING
MOSTLY SUNNY (25-35 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....79-84.
MIN HUMIDITY........14-19 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO
AROUND 25 MPH SHIFTING TO THE WEST AROUND 15
MPH WITH GUSTS TO AROUND 30 MPH LATE IN THE
AFTERNOON.
MIXING HEIGHT.......9500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH INCREASING TO WEST 20 TO
25 MPH LATE IN THE MORNING.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........81 81 81 59 59 59 29 29 29 29 29 29
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............54 55 56 59 64 68 72 77 79 80 81 79
RH..............46 46 44 39 37 33 26 24 21 19 19 21
20 FT WIND DIR..SW SW SW SW SW SW W W W W W W
20 FT WIND SPD..5 5 5 5 5 5 10 10 10 15 15 15
20 FT WIND GUST.15 15 15 15 15 15 25 25 25 30 30 30
MIX HGT (KFT)...0.5 0.5 0.5 0.5 1.5 4.0 5.5 7.0 8.0 8.5 9.5 9.0
TRANSP WIND DIR.SW SW SW SW W W W W W W W W
TRANSP WIND SPD.10 10 10 10 15 20 20 20 25 25 25 20
FORECASTER...GESELL
REQUESTED BY...KYLE MILLER
TYPE OF REQUEST...PRESCRIBED
.TAG 2621433.1/TFX
.DELDT 09/09/26
.FORMATTERVERSION 2.0.0
.EMAIL KYLE.A.MILLER@USDA.GOV, TFX.OPS@NOAA.GOV
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