715
FNUS75 KBYZ 221141
FWSBYZ
SPOT FORECAST FOR BOZEMAN MUNICIPAL WATERSHED HANDPILES...USFS
NATIONAL WEATHER SERVICE BILLINGS MT
541 AM MDT THU OCT 22 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 MDT ON OCTOBER 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
A FEW SHOWERS ARE POSSIBLE AT THE BURN SITE THIS MORNING, THOUGH
ANY RAINFALL WILL BE LIGHT. EXPECT WARM AND DRY CONDITIONS TODAY
WITH SOUTH WINDS PREVAILING. A WEATHER SYSTEM MOVES INTO THE
REGION LATE TONIGHT AND FRIDAY BRINGING SHIFTING WINDS, COOLER
TEMPERATURES AND INCREASING CHANCES FOR PRECIPITATION. THERE IS
CURRENTLY AN 80 TO 90 PERCENT CHANCE FOR AT LEAST 0.50 INCHES OF
LIQUID PRECIPITATION, FRIDAY INTO SATURDAY. RAIN WILL TRANSITION
TO SNOW FRIDAY NIGHT INTO SATURDAY MORNING. THE LATEST FORECAST IS
FOR 2 TO 4 INCHES OF SNOWFALL AT THE BURN SITE.
TODAY
SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS
EARLY IN THE MORNING.
CWR.................5 PERCENT.
CHANCE OF LIGHTNING.2 PERCENT.
MAX TEMPERATURE.....61-66.
MIN HUMIDITY........32-37 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTH WINDS 4 TO 8 MPH WITH GUSTS UP TO 14 MPH.
RIDGETOP...........SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......INCREASING TO 5200 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 10 TO 16 MPH.
TIME (MDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........53 26 21 11 8 11 13 25 31 52
WEATHER COV.....SCH
WEATHER TYPE....RW
TSTM COV........
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0
TEMP............40 42 50 56 60 61 62 63 62 61
RH..............78 78 64 50 43 40 37 35 37 38
20 FT WIND DIR..S S S S S S S S S S
20 FT WIND SPD..6 7 7 5 6 6 6 6 6 6
20 FT WIND GUST.10 14 14 13 13 12 12 12 12 14
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY BECOMING MOSTLY CLOUDY. SLIGHT
CHANCE OF RAIN SHOWERS AFTER 3 AM.
CWR.................10 PERCENT.
CHANCE OF LIGHTNING.5 PERCENT.
MIN TEMPERATURE.....39-43.
MAX HUMIDITY........70-75 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHEAST OR DOWNSLOPE 4 TO 8 MPH, GUSTS
TO 12 MPH.
RIDGETOP...........SOUTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......DECREASING TO 500 FT AGL OVERNIGHT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........45 54 53 39 41 55 58 54 43 58 47 64
WEATHER COV..... SCH SCH SCH
WEATHER TYPE.... RW RW RW
TSTM COV........
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 10 10 10
TEMP............57 52 50 48 47 47 46 45 45 45 45 44
RH..............47 55 60 63 65 68 69 70 71 71 63 67
20 FT WIND DIR..SE SE SE SE SE SE SE SE SE SE S S
20 FT WIND SPD..7 6 6 6 4 5 6 7 6 6 6 6
20 FT WIND GUST.12 11 11 11 10 12 12 12 11 10 10 10
FRIDAY
SKY/WEATHER.........CLOUDY. RAIN SHOWERS LIKELY IN THE MORNING,
THEN RAIN SHOWERS AND SNOW SHOWERS IN THE
AFTERNOON.
CWR.................95 PERCENT.
CHANCE OF LIGHTNING.10 PERCENT.
MAX TEMPERATURE.....45-49.
MIN HUMIDITY........61-66 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTH WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 15
MPH, BECOMING SOUTHWEST TO WEST 6 TO 12 MPH WITH
GUSTS TO AROUND 20 MPH IN THE AFTERNOON.
RIDGETOP...........SOUTH 10 TO 15 MPH, BECOMING SOUTHWEST TO WEST
10 TO 20 MPH IN THE AFTERNOON.
MIXING HEIGHT.......INCREASING TO 2700 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH SHIFTING TO THE WEST AROUND
20 MPH IN THE AFTERNOON.
TIME (MDT) 6 AM 9 AM NOON 3 PM
SKY (%).........77 78 99 99
WEATHER COV.....CHANCE LIKELY LIKELY DEFNTE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSN
TSTM COV........
CHC OF LTNG (%).10 10 10 10
TEMP............43 41 45 41
RH..............70 94 63 82
20 FT WIND......S 6G14 S 6G8 SW 8G17 W 11G21
FORECASTER...PALMQUIST
REQUESTED BY...NICK NELSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2624172.0/BYZ
.DELDT 10/22/26
.FORMATTERVERSION 2.0.0
.EMAIL NICHOLAS.NELSON@USDA.GOV
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