244
FNUS75 KBYZ 131745
FWSBYZ
SPOT FORECAST FOR PILE BURN SHENANGO...USFS
NATIONAL WEATHER SERVICE BILLINGS MT
1145 AM MDT TUE OCT 13 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON OCTOBER 14.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
WINDS WILL GENERALLY BE LIGHT AND VARIABLE (TERRAIN DRIVEN)
THROUGH THE FORECAST, THOUGH A PERIOD OF NORTHWESTERLY WINDS WITH
GUSTS INTO THE LOW TEENS (MPH) IS POSSIBLE WEDNESDAY AFTERNOON AND
EVENING. OTHERWISE, TEMPERATURES WILL TREND WARMER EACH DAY WITH
NO CHANCE OF PRECIPITATION.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....48-52.
MIN HUMIDITY........40-45 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT DOWN-SLOPE / DOWN-VALLEY WINDS BECOMING
NORTHWEST 5 TO 10 MPH BY THE AFTERNOON.
RIDGETOP...........NORTHWEST 5 TO 15 MPH.
MIXING HEIGHT.......INCREASING TO 2100 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 5 MPH SHIFTING TO THE
NORTHWEST 7 TO 10 MPH BY THE AFTERNOON.
TIME (MDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........29 29 6 6 6 15 15 15
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF LTNG (%).0 0 0 0 0 0 0 0
TEMP............36 40 44 48 50 50 48 47
RH..............66 54 47 46 43 42 43 51
20 FT WIND DIR..S S NW NW NW NW NW NW
20 FT WIND SPD..2 2 4 5 6 6 6 5
20 FT WIND GUST.5 5 8 10 10 10 10 10
WEDNESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MIN TEMPERATURE.....28-32.
MAX HUMIDITY........87-91 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHWEST 4 TO 8 MPH IN THE EVENING BECOMING
LIGHT DOWN-SLOPE / DOWN-VALLEY OVERNIGHT.
RIDGETOP...........NORTH TO NORTHEAST 5 TO 10 MPH.
MIXING HEIGHT.......DECREASING TO 300 FT AGL OVERNIGHT.
TRANSPORT WINDS.....NORTHWEST 4 TO 8 MPH SHIFTING TO THE NORTH
THEN NORTHEAST OVERNIGHT.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........21 21 21 38 38 38 39 39 39 14 14 14
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............46 38 35 34 33 32 32 31 31 30 30 30
RH..............50 59 65 70 72 75 76 78 80 82 83 85
20 FT WIND DIR..NW NW NW NW NW NW SW SW SW SW S S
20 FT WIND SPD..5 4 4 4 4 3 3 3 3 1 1 1
20 FT WIND GUST.8 8 8 7 7 6 5 4 4 2 2 2
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....53-57.
MIN HUMIDITY........42-46 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT DOWN-SLOPE / DOWN-VALLEY WINDS IN THE MORNING
BECOMING LIGHT AND VARIABLE DURING THE DAY.
RIDGETOP...........NORTHEAST BECOMING NORTHWEST 4 TO 8 MPH.
MIXING HEIGHT.......INCREASING TO 2800 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH BECOMING NORTH AROUND 5 MPH.
TIME (MDT) 6 AM 9 AM NOON 3 PM
SKY (%).........17 11 7 4
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CHC OF LTNG (%).0 0 0 0
TEMP............29 34 45 54
RH..............89 89 55 44
20 FT WIND......S 2G4 S 2G4 N 3G5 N 3G5
FORECASTER...ARENDS
REQUESTED BY...JAMES RAY
TYPE OF REQUEST...PRESCRIBED
.TAG 2623705.0/BYZ
.DELDT 10/13/26
.FORMATTERVERSION 2.0.0
.EMAIL JAMES.M.RAY@USDA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page