861
FNUS75 KTFX 230023
FWSTFX
SPOT FORECAST FOR BEAR MOUNTAIN...LEWISTOWN INTERAGENCY DISPATCH
NATIONAL WEATHER SERVICE GREAT FALLS MT
623 PM MDT WED APR 22 2026
FORECAST IS BASED ON FORECAST START TIME OF 1800 MDT ON APRIL 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
BETWEEN NOW AND 2100 THERE WILL BE RAIN SHOWERS OVER THE FIRE.
THERE IS AROUND A 20% CHANCE FOR LIGHTNING WITH ANY RAIN SHOWER AS
WELL. RAIN/SNOW WILL THEN CONTINUE THROUGH AROUND 0400. THURSDAY
AFTERNOON AND EVENING THERE WILL BE ISOLATED RAIN SHOWERS OVER THE
FIRE. FROM NOW THROUGH THURSDAY MORNING IT WILL BE VERY WINDY OVER
THE FIRE WITH WINDS OF 30 TO 40 MPH WITH GUSTS UP TO 60 MPH. THE
STRONGEST WINDS WILL BETWEEN 0200 AND 1000 ON THURSDAY. THURSDAY
MORNING WINDS WILL BE AROUND 25 TO 35 MPH WITH GUSTS UP TO 55
MPH. THURSDAY AFTERNOON WINDS WILL BEGIN TO DECREASE TO BE AROUND
20 - 30 MPH WITH GUSTS UP TO 40 MPH. THURSDAY NIGHT WINDS WILL BE
AROUND 15 - 25 MPH WITH GUSTS UP TO 35 MPH. THURSDAY THROUGH
FRIDAY MORNING THERE WILL BE ISOLATED LIGHT RAIN/SNOW SHOWERS OVER
THE FIRE. ON FRIDAY WINDS WILL BE AROUND 15 TO 25 MPH WITH GUSTS
UP TO 35 MPH.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE
NIGHT. SNOW LIKELY OVERNIGHT.
CWR.................40 PERCENT INCREASING TO 90 PERCENT OVERNIGHT.
CHANCE OF THUNDER...23 PERCENT.
MIN TEMPERATURE.....26-31.
MAX HUMIDITY........79-84 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......VERY WINDY. WEST WINDS 20 TO 25 MPH INCREASING
TO 25 TO 30 MPH EARLY IN THE EVENING, THEN
INCREASING TO NORTHWEST 35 TO 40 MPH WITH GUSTS
TO AROUND 55 MPH LATE IN THE EVENING. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE
EVENING.
RIDGETOP...........NORTHWEST 25 TO 30 MPH BECOMING NORTH AND
INCREASING TO AROUND 65 MPH.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....WEST 25 TO 30 MPH BECOMING NORTHWEST AND
INCREASING TO 45 TO 50 MPH.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........72 66 73 78 78 89 84 88 97 92 89 93
WEATHER COV..... SCH CHC LKY LKY DEF DEF DEF DEF DEF LKY CHC
WEATHER TYPE.... RW RW RW RW RW RW RW RW RN RS SN
TSTM COV........ SCH SCH SCH SCH SCH SCH SCH SCH
CWR.............40 40 40 40 40 40 90 90 90 90 90 90
CHC OF THDR (%).10 20 20 20 20 20 20 20 20 10 10 10
TEMP............60 57 54 52 48 45 42 39 37 34 33 31
RH..............32 41 50 68 75 80 82 84 84 84 84 84
20 FT WIND DIR..SW W W W W NW NW NW NW NW NW NW
20 FT WIND SPD..20 25 30 25 30 35 35 40 45 45 45 45
20 FT WIND GUST.30 30 35 35 40 40 50 55 55 60 60 60
RIDGE WIND DIR..NW NW W W W NW N N N N N N
RIDGE WIND SPD..25 30 30 35 40 45 50 55 65 65 65 65
MIX HGT (KFT)...3.0 2.5 1.5 0.5 1.0 0.5 1.0 1.0 0.5 1.0 0.5 0.5
TRANSP WIND DIR.W W W W NW NW NW NW NW NW NW NW
TRANSP WIND SPD.25 25 30 30 30 35 40 40 45 45 45 50
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
PARTLY SUNNY (55-65 PERCENT). CHANCE OF SNOW.
CWR.................20 PERCENT DECREASING TO 5 PERCENT IN THE
AFTERNOON.
CHANCE OF THUNDER...3 PERCENT.
MAX TEMPERATURE.....34-39.
MIN HUMIDITY........52-57 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......STRONG WINDS. NORTHWEST WINDS 45 TO 50 MPH
DECREASING TO AROUND 30 MPH WITH GUSTS TO
AROUND 50 MPH.
RIDGETOP...........NORTH 60 TO 65 MPH BECOMING NORTHWEST AND
DECREASING TO 50 TO 55 MPH.
MIXING HEIGHT.......3500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 45 TO 50 MPH DECREASING TO AROUND 35
MPH.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........93 94 86 70 57 53 57 48 54 62 60 67
WEATHER COV.....CHC ARS ARS
WEATHER TYPE....SN BSN BSN
TSTM COV........
CWR.............20 20 20 20 20 20 10 10 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............30 29 28 30 31 29 30 31 33 34 35 36
RH..............84 83 82 76 69 75 71 66 62 59 57 57
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..45 50 45 45 40 35 30 30 30 30 30 30
20 FT WIND GUST.60 60 60 60 55 50 50 45 45 40 40 40
RIDGE WIND DIR..N N N N N NW NW NW NW NW NW NW
RIDGE WIND SPD..65 65 65 60 60 55 55 55 50 50 50 50
MIX HGT (KFT)...1.0 1.0 1.0 1.5 2.0 2.0 2.5 3.0 3.0 3.5 3.5 3.5
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW NW NW
TRANSP WIND SPD.45 50 45 45 45 40 45 40 40 40 40 35
THURSDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING
PARTLY CLOUDY (30-40 PERCENT).
CWR.................5 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....23-28.
MAX HUMIDITY........57-62 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WINDY. NORTHWEST WINDS 25 TO 30 MPH DECREASING
TO 20 TO 25 MPH OVERNIGHT.
RIDGETOP...........NORTHWEST AROUND 45 MPH.
MIXING HEIGHT.......2000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 30 TO 35 MPH INCREASING TO AROUND 40
MPH AFTER 3 AM.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........60 60 60 56 56 56 39 39 39 35 35 35
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............10 10 10 10 10 10 10 10 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............36 33 32 32 31 31 30 29 28 27 27 26
RH..............48 50 52 53 55 57 58 59 59 60 61 62
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..30 30 30 25 25 25 20 20 20 25 25 25
20 FT WIND GUST.40 40 40 30 30 30 30 30 30 30 30 30
RIDGE WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW
RIDGE WIND SPD..45 45 45 45 45 45 45 45 45 45 45 45
MIX HGT (KFT)...3.5 4.0 3.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW NW NW
TRANSP WIND SPD.35 35 35 30 35 35 30 35 35 35 40 40
FRIDAY
SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). CHANCE OF SNOW.
CWR.................5 PERCENT.
CHANCE OF THUNDER...8 PERCENT.
MAX TEMPERATURE.....30-35.
MIN HUMIDITY........42-47 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WINDY. NORTHWEST WINDS 25 TO 30 MPH.
RIDGETOP...........NORTHWEST 45 MPH.
MIXING HEIGHT.......5000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 35 TO 40 MPH. F
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........53 53 53 57 57 57 67 67 67 81 81 81
WEATHER COV.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
WEATHER TYPE....SN SN SN SN SN SN SN SN SN SN SN SN
TSTM COV........
CWR.............10 10 10 10 10 10 10 10 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 10 10 10 10 10 10
TEMP............26 26 27 28 29 30 30 31 31 31 31 30
RH..............62 60 57 53 49 46 44 44 45 47 48 49
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..25 25 25 30 30 30 25 25 25 25 25 25
20 FT WIND GUST.30 30 30 35 35 35 35 35 35 35 35 35
RIDGE WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW
RIDGE WIND SPD..45 45 45 45 45 45 45 45 45 45 45 45
MIX HGT (KFT)...2.5 2.5 2.5 3.0 3.5 4.0 4.5 4.5 5.0 4.5 4.5 4.5
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW NW NW
TRANSP WIND SPD.40 40 40 35 35 35 40 40 40 40 40 40
FORECASTER...GESELL
REQUESTED BY...C TURNER
TYPE OF REQUEST...WILDFIRE
.TAG 2611431.0/TFX
.DELDT 04/22/26
.FORMATTERVERSION 2.0.0
.EMAIL MTLEC@FIRENET.GOV, TFX.OPS@NOAA.GOV
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