037
FNUS75 KTFX 011103
FWSTFX
SPOT FORECAST FOR BROOKLYN DIVIDE RX...USFS HELENA RANGER DISTRICT
NATIONAL WEATHER SERVICE GREAT FALLS MT
502 AM MDT THU OCT 1 2026
FORECAST IS BASED ON IGNITION TIME OF 0600 MDT ON OCTOBER 01.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
NOTE...NWS IMET ON SCENE MIGHT ADJUST THIS FORECAST LATER THIS
MORNING IF NEEDED.
DISCUSSION
EXPECT MOSTLY CLOUD SKIES TODAY, WITH MID/HIGH LEVEL CLOUDS
THROUGHOUT THE DAY. I AM THINKING ALL LIGHT RAIN SHOWERS WILL BE
TO YOUR NORTH, BUT IF IT DOES RAIN, IT SHOULD MOSTLY BE A
SPRINKLE/VERY LIGHT RAIN SHOWER TODAY. IT WILL BE COOL TODAY, BUT
WARMER/A BIT WINDY TOMORROW. MONDAY IS LOOKING TO BE THE
WARMEST/LOW HUMIDITY/WINDY DAY.
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....56-61.
MIN HUMIDITY........48-53 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING UPSLOPE AROUND 5 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......4000 FT AGL.
TRANSPORT WINDS.....WEST 5 TO 10 MPH.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........61 63 54 62 66 66 58 55 64 55 47 46
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............40 40 40 43 47 49 51 54 56 57 58 57
RH..............96 96 96 86 74 68 64 60 56 53 53 53
20 FT WIND DIR..W W W W N N N N N N N N
20 FT WIND SPD..0 0 0 0 0 0 0 5 5 5 5 5
20 FT WIND GUST.5 5 5 5 5 5 10 10 10 15 15 10
MIX HGT (KFT)...0.5 0.5 0.5 0.5 1.5 2.0 3.0 3.5 4.0 4.0 4.0 3.5
TRANSP WIND DIR.W W W SW SW SW W W W W W W
TRANSP WIND SPD.5 5 5 5 5 5 5 5 5 10 5 5
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....41-46.
MAX HUMIDITY........71-76 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTH WINDS AROUND 5 MPH, BECOMING DOWNSLOPE
IN THE EVENING.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE SOUTH EARLY
IN THE EVENING, THEN SHIFTING TO THE SOUTHWEST
LATE IN THE EVENING.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........50 50 59 52 56 50 56 57 68 63 58 62
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............56 55 51 49 48 47 46 46 45 45 45 45
RH..............54 61 68 69 71 73 75 74 76 76 76 76
20 FT WIND DIR..N N N SE S S SW SW SW SW SW SW
20 FT WIND SPD..5 0 0 5 5 5 5 5 5 5 5 5
20 FT WIND GUST.10 5 5 10 10 10 10 10 10 10
MIX HGT (KFT)...2.0 1.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.N N SE S S SW SW W W SW W SW
TRANSP WIND SPD.5 5 5 5 5 5 10 10 10 10 10 10
FRIDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....65-70.
MIN HUMIDITY........29-34 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS AROUND 5 MPH INCREASING TO AROUND 10
MPH WITH GUSTS AROUND 20 MPH IN THE AFTERNOON.
MIXING HEIGHT.......8000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH SHIFTING TO THE WEST 15
TO 20 MPH IN THE AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........61 61 61 52 52 52 45 45 45 45 45 45
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 44 48 54 57 60 64 65 66 67 66
RH..............76 75 74 65 58 49 44 40 37 34 34 34
20 FT WIND DIR..SW SW SW SW SW SW W W W W W W
20 FT WIND SPD..5 5 5 5 5 5 5 5 10 10 10 10
20 FT WIND GUST.10 10 10 15 15 15 15 15 20 20 20 15
MIX HGT (KFT)...0.5 0.5 0.5 0.5 1.5 3.0 4.5 6.5 8.0 7.5 8.0 6.0
TRANSP WIND DIR.SW SW SW SW W W W W W W W W
TRANSP WIND SPD.10 10 10 10 10 15 20 20 20 20 20 15
FORECASTER...BRUSDA
REQUESTED BY...MATTHEW WILL
TYPE OF REQUEST...PRESCRIBED
.TAG 2622714.1/TFX
.DELDT 10/01/26
.FORMATTERVERSION 2.0.0
.EMAIL BAJIN.SMITH@USDA.GOV,MATTHEW.WILL@USDA.GOV,STEPHEN.BODNAR@NOAA.GOV
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