840
FNUS75 KTFX 061006
FWSTFX
SPOT FORECAST FOR TREASURE MTN RX...USFS
NATIONAL WEATHER SERVICE GREAT FALLS MT
406 AM MDT WED MAY 6 2026
FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON MAY 06.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
UPPER LEVEL HIGH PRESSURE SHIFTS ACROSS THE REGION TODAY FOR
SUNNY, DRY AND MILD CONDITIONS THROUGH THIS AFTERNOON. LIGHT WINDS
THIS MORNING MAY BECOME UP-SLOPE/UP-DRAINAGE FOR A PERIOD AROUND
MID-DAY BEFORE BREEZY WEST TO NORTHWEST WINDS DEVELOP THIS
AFTERNOON. A WEATHER DISTURBANCE MOVING IN FROM THE NORTHWEST
BRINGS INCREASING CLOUDS THIS EVENING WITH AN ISOLATED SHOWER OR
THUNDERSTORMS POSSIBLE, MAINLY BETWEEN 1900 AND 2200. BETTER
CHANCES FOR SHOWER AND THUNDERSTORM ACTIVITY THIS EVENING WILL
EXIST EAST OF THE CONTINENTAL DIVIDE. WINDS DECREASE SOME
OVERNIGHT WITH SOMEWHAT BREEZY WEST TO NORTHWEST WINDS
REDEVELOPING THURSDAY AFTERNOON. TEMPERATURES COOL SLIGHTLY ON
THURSDAY WITH A SMALL RISK FOR ISOLATED AFTERNOON SHOWERS AND
THUNDERSTORMS.
TODAY
SKY/WEATHER.........SUNNY (5-15 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...3 PERCENT.
MAX TEMPERATURE.....58-63.
MIN HUMIDITY........25-30 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING WEST LATE IN THE MORNING,
THEN INCREASING TO 15 TO 20 MPH IN THE AFTERNOON.
MIXING HEIGHT.......6500 FT AGL.
TRANSPORT WINDS.....WEST 10 TO 15 MPH, BECOMING NORTHWEST 20 TO 25
MPH IN THE AFTERNOON.
TIME (MDT) 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........12 7 7 14 11 20
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0
TEMP............46 48 52 54 56 58
RH..............34 34 34 34 33 32
20 FT WIND DIR..W W W W W W
20 FT WIND SPD..8 10 12 15 18 20
20 FT WIND GUST.20 20 25 25 25 30
MIX HGT (KFT)...4.0 4.5 5.0 5.5 6.5 6.5
TRANSP WIND DIR.W W W W NW NW
TRANSP WIND SPD.20 20 20 25 25 25
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-80 PERCENT). AN SHOWER OR
ISOLATED THUNDERSTORM POSSIBLE, MAINLY IN
THE EVENING.
CWR.................5 PERCENT.
CHANCE OF THUNDER...15 PERCENT.
MIN TEMPERATURE.....38-43.
MAX HUMIDITY........71-76 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHWEST WINDS 15 TO 20 MPH SHIFTING TO THE
SOUTHWEST AND DECREASING OVERNIGHT. GUSTY AND
ERRATIC WINDS POSSIBLE NEAR ISOLATED EVENING
SHOWERS OR THUNDERSTORMS.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....WEST 20 TO 25 MPH DECREASING TO 15 TO 20 MPH IN
THE LATE EVENING AND OVERNIGHT.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........32 43 50 84 85 81 83 69 47 34 35 55
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............10 10 10 10 10 10 0 0 0 0 0 0
CHC OF THDR (%).10 10 10 10 10 10 10 10 10 10 10 10
TEMP............58 56 53 49 48 46 45 44 42 42 42 40
RH..............33 38 47 55 58 62 65 66 69 71 74 75
20 FT WIND DIR..W W W W W W W W W W W SW
20 FT WIND SPD..20 20 15 15 13 11 10 10 10 10 10 10
20 FT WIND GUST.30 25 25 20 20 20 20 20 20 20 20 20
MIX HGT (KFT)...6.0 4.5 2.5 0.5 1.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.25 25 20 15 15 15 15 15 20 20 20 20
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). SLIGHT CHANCE OF
RAIN SHOWERS IN THE AFTERNOON.
CWR.................5 PERCENT.
CHANCE OF THUNDER...14 PERCENT.
MAX TEMPERATURE.....55-60.
MIN HUMIDITY........35-40 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 15 TO 20 MPH.
MIXING HEIGHT.......7500 FT AGL.
TRANSPORT WINDS.....WEST 20 TO 25 MPH.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........57 57 57 28 28 28 30 30 30 40 40 40
WEATHER COV..... SCH SCH SCH SCH SCH
WEATHER TYPE.... RW RW RW RW RW
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............41 42 43 47 50 53 54 55 55 55 56 57
RH..............76 71 65 58 51 45 41 40 40 40 40 40
20 FT WIND DIR..W W W W W W W W W NW NW NW
20 FT WIND SPD..15 15 15 20 20 20 15 15 15 15 15 15
20 FT WIND GUST.20 20 20 25 25 25 25 25 25 25 25 25
MIX HGT (KFT)...1.0 1.0 2.5 3.5 4.0 5.0 5.5 6.5 7.5 6.5 7.0 7.5
TRANSP WIND DIR.W W W W W W NW NW W W W W
TRANSP WIND SPD.20 20 20 20 25 25 20 20 20 20 20 20
FORECASTER...HOENISCH
REQUESTED BY...KYLE MILLER
TYPE OF REQUEST...PRESCRIBED
.TAG 2612651.2/TFX
.DELDT 05/06/26
.FORMATTERVERSION 2.0.0
.EMAIL KYLE.A.MILLER@USDA.GOV,LEWIS.TAFELMEYER@USDA.GOV,KENNETH.ANDERSEN@USDA.GOV
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