893
FNUS75 KTFX 101021
FWSTFX
SPOT FORECAST FOR MINI HORSE RX...USFS HELENA RANGER DISTRICT
NATIONAL WEATHER SERVICE GREAT FALLS MT
421 AM MDT FRI APR 10 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 MDT ON APRIL 10.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
HIGH TEMPERATURES WILL WARM SOME 10 TO 15 DEGREES ACROSS THE
INCIDENT AREA AS UPPER LEVEL RIDGING CONTINUES TO SHIFT EAST FROM
THE PACIFIC NORTHWEST AND TOWARDS THE NORTHERN ROCKIES, WITH THE
RIDGE AXIS MOVING OVER THE NORTHERN ROCKIES ON SATURDAY AND
FLATTENING. DRY CONDITIONS WILL CONTINUE THROUGH THE DAYLIGHT
HOURS TODAY, WITH INCREASING CHANCES FOR SHOWERS AND ISOLATED
THUNDERSTORMS TONIGHT AND THROUGH THE DAY ON SATURDAY. CHANCES
FOR WETTING RAINFALL INCREASE TO BETWEEN A 40-60% CHANCE FROM
SUNDAY EVENING THROUGH MONDAY NIGHT AS AN UPPER LEVEL DISTURBANCE
MOVES OVER THE NORTHERN ROCKIES.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....63-68.
MIN HUMIDITY........20-25 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING NORTHEAST AROUND 5 MPH
LATE IN THE MORNING.
MIXING HEIGHT.......5000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........26 39 39 42 36 23 30 41 48 59 53
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............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
TEMP............35 36 39 45 50 53 57 61 63 64 64
RH..............56 53 48 42 38 34 30 28 26 25 25
20 FT WIND DIR..W W N NE NE NE NE NE NE NE NE
20 FT WIND SPD..0 0 0 0 5 5 5 5 5 5 5
20 FT WIND GUST.5 5 5 5 10 10 15 15 15 15 15
MIX HGT (KFT)...0.5 0.5 0.5 1.5 2.0 2.5 3.0 4.0 4.5 5.0 5.0
TRANSP WIND DIR.S S SE SE SE S S S S S SE
TRANSP WIND SPD.5 5 5 5 5 5 5 10 10 10 10
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING
PARTLY CLOUDY (40-50 PERCENT). SLIGHT CHANCE OF
RAIN LATE IN THE EVENING.
CWR.................5 PERCENT.
CHANCE OF THUNDER...4 PERCENT.
MIN TEMPERATURE.....42-47.
MAX HUMIDITY........62-67 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT AND VARIABLE WINDS AROUND 5 MPH.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....EAST 5 TO 10 MPH SHIFTING TO THE NORTH EARLY IN
THE EVENING, THEN SHIFTING TO THE SOUTHWEST
LATE IN THE EVENING BECOMING AROUND 5 MPH
OVERNIGHT.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........54 74 70 71 74 69 59 68 67 45 44 42
WEATHER COV..... SCH SCH
WEATHER TYPE.... RN RN
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............65 63 59 55 54 52 51 50 49 47 46 45
RH..............25 27 33 38 41 47 50 52 57 58 61 64
20 FT WIND DIR..E NE N W SW SW W SW S S SW SW
20 FT WIND SPD..5 5 5 5 5 0 5 0 0 5 5 5
20 FT WIND GUST.15 15 10 10 5 5 5
MIX HGT (KFT)...4.0 1.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.E E N S SW SW SW W SW SW SW SW
TRANSP WIND SPD.10 5 5 5 5 5 10 5 5 5 5 5
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT) THEN BECOMING
MOSTLY CLOUDY (75-85 PERCENT). RAIN SHOWERS
LIKELY IN THE AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON.
CWR.................5 PERCENT INCREASING TO 25 PERCENT IN THE
AFTERNOON.
CHANCE OF THUNDER...21 PERCENT.
MAX TEMPERATURE.....65-70.
MIN HUMIDITY........26-31 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHWEST WINDS AROUND 5 MPH INCREASING TO
AROUND 15 MPH LATE IN THE AFTERNOON. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS LATE
IN THE AFTERNOON.
MIXING HEIGHT.......9500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH INCREASING TO 15 TO 20
MPH LATE IN THE MORNING, THEN INCREASING TO 20
TO 25 MPH LATE IN THE AFTERNOON SHIFTING TO THE
WEST AROUND 15 MPH LATE IN THE AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........45 45 45 44 44 44 79 79 79 79 79 79
WEATHER COV..... LKY LKY LKY LKY LKY LKY
WEATHER TYPE.... RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH
CWR.............10 10 10 10 10 10 30 30 30 30 30 30
CHC OF THDR (%).0 0 0 0 0 0 10 10 10 20 20 20
TEMP............45 44 46 50 54 59 63 65 66 66 65 63
RH..............67 65 62 58 51 42 35 31 30 31 34 39
20 FT WIND DIR..SW SW SW S S S SW SW SW SW SW SW
20 FT WIND SPD..5 5 5 5 5 5 5 5 5 15 15 15
20 FT WIND GUST. 15 15 15 20 20 20
MIX HGT (KFT)...0.5 0.5 0.5 1.0 3.0 6.0 8.0 9.5 9.5 9.0 7.5 6.0
TRANSP WIND DIR.SW SW SW S SW SW SW SW SW SW SW W
TRANSP WIND SPD.5 5 5 5 10 15 20 25 25 20 20 15
FORECASTER...MOLDAN
REQUESTED BY...PHILIP QUIGLEY
TYPE OF REQUEST...PRESCRIBED
.TAG 2609604.2/TFX
.DELDT 04/10/26
.FORMATTERVERSION 2.0.0
.EMAIL PHILIP.QUIGLEY@USDA.GOV,LEWIS.TAFELMEYER@USDA.GOV,KYLE.A.MILLER@USDA.GOV, TFX.OPS@NOAA.GOV
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