427
FNUS75 KTFX 142342
FWSTFX
SPOT FORECAST FOR BEAR GULCH...USFS
NATIONAL WEATHER SERVICE GREAT FALLS MT
542 PM MDT MON SEP 14 2026
FORECAST IS BASED ON IGNITION TIME OF 1800 MDT ON SEPTEMBER 14.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
A WEAK COLD FRONT WILL BRING A NORTHERLY WIND SHIFT AND INCREASED
CLOUD COVER TUESDAY NIGHT INTO WEDNESDAY. OTHERWISE, WINDS
DECREASE OVER THE NEXT COUPLE OF DAYS WHILE GENERAL COOLER AND
DRIER CONDITIONS PREVAIL. MINIMUM RELATIVE HUMIDITY WILL REMAIN
ABOVE CRITICAL LEVELS AND OVERNIGHT RECOVERIES WILL BE GOOD.
LOOKING AHEAD, AN APPROACHING PACIFIC WEATHER SYSTEM WILL BRING
INCREASED SCATTERED SHOWER AND THUNDERSTORM ACTIVITY THURSDAY AND
ESPECIALLY FRIDAY.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....39-44.
MAX HUMIDITY........76-81 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 10 TO 15 MPH DECREASING AND BECOMING
LIGHT SOUTH TO SOUTHWEST.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....WEST 20 TO 25 MPH DECREASING TO 10 TO 15 MPH
IN THE EVENING, THEN BECOMING LIGHT SOUTHWEST OVERNIGHT.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........31 39 45 46 44 29 27 15 24 21 20 27
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............57 56 51 50 49 48 47 47 46 44 43 43
RH..............49 51 59 64 68 71 71 70 73 74 78 78
20 FT WIND DIR..W W W W W SW SW SW SW S S SW
20 FT WIND SPD..15 10 10 5 5 5 5 5 5 5 5 0
20 FT WIND GUST.25 20 15 10 10 10 10 10 5
MIX HGT (KFT)...4.0 3.0 1.0 1.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.W W W W W W W SW SW SW S S
TRANSP WIND SPD.25 20 15 10 10 5 5 5 5 5 5 5
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....64-69.
MIN HUMIDITY........30-35 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT SOUTHWEST WINDS
BECOMING NORTHEAST 5 TO 10 MPH.
MIXING HEIGHT.......5000 FT AGL.
TRANSPORT WINDS.....SOUTHERLY 5 TO 10 MPH BECOMING NORTHEAST
IN THE AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........16 16 15 39 30 23 17 28 49 38 47 58
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............41 42 43 48 51 54 56 60 64 64 66 66
RH..............81 80 74 62 60 56 51 45 39 37 37 37
20 FT WIND DIR..SW SW SW NE NE NE NE NE NE NE NE NE
20 FT WIND SPD..0 0 0 0 0 5 5 5 5 5 5 5
20 FT WIND GUST.5 5 5 5 5 10 10 15 15 15 15 15
MIX HGT (KFT)...0.5 0.5 0.5 0.5 1.5 2.0 3.0 3.5 4.5 5.0 5.0 4.0
TRANSP WIND DIR.S S S S SE SE SE SE SE SE E NE
TRANSP WIND SPD.5 5 5 5 5 5 5 10 10 10 10 10
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT).
CWR.................5 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....43-48.
MAX HUMIDITY........74-79 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTH TO NORTHWEST WINDS 5 TO 10 MPH.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....NORTH TO NORTHWEST AROUND 10 MPH.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........77 77 77 72 72 72 56 56 56 70 70 70
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
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 0 0 0
TEMP............63 62 59 55 54 52 50 50 48 47 46 46
RH..............37 42 48 55 59 64 66 67 71 72 77 76
20 FT WIND DIR..N N N NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..5 5 5 10 10 10 5 5 5 5 5 5
20 FT WIND GUST.15 15 15 20 20 20 10 10 10
MIX HGT (KFT)...2.5 1.5 1.0 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 NW NW NW NW NW NW NW NW
TRANSP WIND SPD.10 10 10 10 10 10 10 10 10 10 5 5
WEDNESDAY
SKY/WEATHER.........BECOMING MOSTLY SUNNY (30-40 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....60-65.
MIN HUMIDITY........45-50 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHERLY WINDS 5 TO 15 MPH.
MIXING HEIGHT.......3500 FT AGL.
TRANSPORT WINDS.....NORTHERLY 5 TO 15 MPH.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........70 70 70 70 60 60 50 39 39 18 18 18
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............45 45 46 47 48 49 50 53 56 59 61 62
RH..............79 79 76 72 71 70 69 64 58 53 50 49
20 FT WIND DIR..NW NW NW N N N N N N NE NE NE
20 FT WIND SPD..5 5 5 10 10 10 5 5 5 10 10 10
20 FT WIND GUST.10 10 10 15 15 15 15 15 15 15 15 15
MIX HGT (KFT)...0.5 0.5 1.0 1.5 2.0 2.5 3.0 3.5 3.5 3.5 3.5 3.0
TRANSP WIND DIR.NW NW N N N N N N N N N N
TRANSP WIND SPD.10 5 10 10 10 10 5 10 10 10 10 10
FORECASTER...GREELY
REQUESTED BY...KYLE MILLER
TYPE OF REQUEST...PRESCRIBED
.TAG 2621433.7/TFX
.DELDT 09/14/26
.FORMATTERVERSION 2.0.0
.EMAIL KYLE.A.MILLER@USDA.GOV, TFX.OPS@NOAA.GOV
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