536
FNUS75 KTFX 091147
FWSTFX
SPOT FORECAST FOR TWO CALF UNIT A RX...BLM
NATIONAL WEATHER SERVICE GREAT FALLS MT
547 AM MDT THU APR 9 2026
FORECAST IS BASED ON IGNITION TIME OF 0600 MDT ON APRIL 09.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
ANOTHER TROUGH AND COLD FRONTAL PASSAGE IS BRINGING NORTHERLY
BREEZES AND A FEW ISOLATED SNOW SHOWERS THIS MORNING. OVERALL,
WINDS WILL GENERALLY REMAIN ON THE LIGHT SIDE UNTIL FRIDAY WHEN
EAST TO SOUTHEASTERLY BREEZES INCREASE TO THE 10 TO 20 MPH RANGE.
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) THEN BECOMING
MOSTLY SUNNY (20-30 PERCENT). SLIGHT CHANCE FOR A SNOW
SHOWER IN THE MORNING.
CWR.................0 PERCENT.
CHANCE OF THUNDER...1 PERCENT.
MAX TEMPERATURE.....52-57.
MIN HUMIDITY........24-29 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHERLY WINDS AROUND 5 TO 10 MPH IN THE
MORNING BECOMING NORTHWEST
AROUND 5 TO 10 MPH LATE IN THE MORNING.
MIXING HEIGHT.......6500 FT AGL.
TRANSPORT WINDS.....NORTHERLY AROUND 5 TO 15 MPH BECOMING
NORTHWEST 5 TO 10 MPH.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........73 74 68 42 26 42 10 22 29 25 10 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............30 30 32 35 39 43 46 49 51 52 53 54
RH..............66 65 60 57 50 44 41 37 35 33 31 29
20 FT WIND DIR..NE N N N N N N NW NW NW NW N
20 FT WIND SPD..5 0 0 0 0 5 5 5 5 5 5 5
20 FT WIND GUST.10 5 5 5 5 10 10 10 10 10 10 10
MIX HGT (KFT)...0.5 0.5 0.5 1.5 2.5 3.5 5.0 6.0 6.5 6.5 6.5 6.5
TRANSP WIND DIR.NE N N N N N NW NW NW NW NW NW
TRANSP WIND SPD.5 5 5 5 10 5 5 10 10 10 10 10
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....28-33.
MAX HUMIDITY........67-72 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHERLY WINDS AROUND 5 TO 10 MPH
BECOMING EASTERLY.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 5 TO 10 MPH BECOMING EASTERLY.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........10 12 13 14 14 14 14 15 14 14 10 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............53 51 48 44 41 39 38 36 35 32 32 32
RH..............29 34 38 43 46 49 54 59 60 64 66 70
20 FT WIND DIR..N NE NE NE E SE SE E E E E E
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
MIX HGT (KFT)...6.0 5.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.NW N NE E E E E SE SE E SE SE
TRANSP WIND SPD.5 5 10 10 10 10 10 10 10 10 10 10
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....65-70.
MIN HUMIDITY........22-27 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHEAST WINDS 5 TO 10 MPH INCREASING TO
AROUND 15 TO 20 MPH IN THE AFTERNOON.
MIXING HEIGHT.......4500 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 10 TO 15 MPH INCREASING TO 20 TO 25
MPH IN THE LATE MORNING AND AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........25 25 25 20 20 20 26 26 26 38 38 38
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............30 32 35 39 44 50 56 60 63 65 67 67
RH..............71 70 63 53 45 38 33 30 28 27 26 26
20 FT WIND DIR..E E E SE SE SE SE SE SE SE SE SE
20 FT WIND SPD..5 5 5 10 10 10 15 15 15 15 15 15
20 FT WIND GUST.10 10 10 15 15 15 25 25 25 25 25 25
MIX HGT (KFT)...0.5 0.5 1.0 1.5 2.0 3.0 3.5 4.0 4.0 4.5 4.5 4.5
TRANSP WIND DIR.SE E SE SE SE SE SE SE SE SE SE SE
TRANSP WIND SPD.10 15 15 20 20 25 25 25 25 25 25 25
FORECASTER...GREELY
REQUESTED BY...JAY PETERMAN
TYPE OF REQUEST...PRESCRIBED
.TAG 2609513.1/TFX
.DELDT 04/09/26
.FORMATTERVERSION 2.0.0
.EMAIL JPETERMAN@BLM.GOV, TFX.OPS@NOAA.GOV
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