384  
FNUS75 KBYZ 021307  
FWSBYZ  
 
SPOT FORECAST FOR NORTH BRIDGERS HANDPILES RX - UNIT 30...USFS  
NATIONAL WEATHER SERVICE BILLINGS MT  
607 AM MST TUE DEC 2 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 MST ON DECEMBER 02.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
SNOWY CONDITIONS ARE FORECAST AT THE BURN SITE TODAY AND TONIGHT.  
BREEZY RIDGE WINDS (20 TO 30 MPH) AND LIGHTER SLOPE/VALLEY WINDS  
(UP TO 10 MPH) ARE FORECAST THROUGH THE PERIOD. TOTAL SNOW  
ACCUMULATIONS OF 1 TO 3 INCHES ARE FORECAST, WITH A 25 PERCENT  
CHANCE FOR MORE THAN 3 INCHES. EXPECT DRIER CONDITIONS ALONG WITH  
TEMPERATURES IN THE MID TO UPPER 20S ON WEDNESDAY. MATOS  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SNOW LIKELY.  
CWR.................65 PERCENT.  
CHANCE OF LIGHTNING.2 PERCENT.  
MAX TEMPERATURE.....26-30.  
MIN HUMIDITY........77-81 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......WEST WINDS 7 TO 12 MPH WITH GUSTS AROUND 25 MPH  
IN THE MORNING. BECOMING NORTHWEST 4 TO 7 MPH IN  
THE AFTERNOON.  
RIDGETOP...........WEST 20 TO 30 MPH SHIFTING TO THE NORTH LATE  
IN THE AFTERNOON.  
MIXING HEIGHT.......INCREASING TO 1600 FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....WEST 12 TO 17 MPH SHIFTING TO THE NORTHWEST  
LATE IN THE AFTERNOON.  
 
TIME (MST) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........82 81 93 90 91 90 90 93 91  
WEATHER COV.....LKY LKY LKY LKY LKY LKY LKY LKY CHC  
WEATHER TYPE....SN SN SN SN SN SN SN SN SN  
TSTM COV........  
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0  
TEMP............25 26 26 27 27 26 26 25 23  
RH..............86 86 85 86 89 88 84 84 84  
20 FT WIND DIR..W W W W W NW NW NW NW  
20 FT WIND SPD..11 10 10 9 8 6 5 4 3  
20 FT WIND GUST.24 23 22 19 17 15 12 11 10  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SNOW LIKELY EARLY IN THE  
EVENING, THEN SLIGHT CHANCE OF SNOW LATE  
IN THE EVENING.  
CWR.................10 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MIN TEMPERATURE.....13-17.  
MAX HUMIDITY........83-87 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......LIGHT AND TERRAIN DRIVEN WINDS.  
RIDGETOP...........NORTH 20 TO 25 MPH.  
MIXING HEIGHT.......DECREASING TO 100 FT AGL OVERNIGHT.  
TRANSPORT WINDS.....NORTHWEST 8 TO 13 MPH.  
 
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........92 94 95 92 92 88 83 76 82 82 78 64  
WEATHER COV.....LKY CHC CHC CHC CHC SCH SCH SCH SCH SCH SCH  
WEATHER TYPE....SN SN SN SN SN SN SN SN SN SN SN  
TSTM COV........  
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............23 23 23 23 22 20 20 19 18 18 17 16  
RH..............84 85 83 83 83 81 81 82 83 83 83 83  
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW W W W  
20 FT WIND SPD..3 3 3 3 3 3 3 2 2 2 2 2  
20 FT WIND GUST.10 8 8 8 8 8 7 6 6 6 6 6  
   
WEDNESDAY
 
 
SKY/WEATHER.........PARTLY SUNNY THEN BECOMING SUNNY.  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....25-29.  
MIN HUMIDITY........62-66 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......LIGHT WEST TO SOUTHWEST WINDS 4 TO 8 MPH.  
RIDGETOP...........NORTHWEST AROUND 20 MPH, BECOMING WEST UP TO  
30 MPH LATE IN THE AFTERNOON.  
MIXING HEIGHT.......INCREASING TO 1300 FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....WEST 8 TO 14 MPH.  
 
TIME (MST) 6 AM 9 AM NOON 3 PM  
SKY (%).........70 48 43 18  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE  
TSTM COV........  
CHC OF LTNG (%).0 0 0 0  
TEMP............16 18 24 25  
RH..............85 87 76 70  
20 FT WIND......W 4G7 SW 5G7 SW 7G10 SW 8G12  
 

 
FORECASTER...MATOS  
REQUESTED BY...TYLER KUHN  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2526780.0/BYZ  
.DELDT 12/02/25  
.FORMATTERVERSION 2.0.0  
.EMAIL TYLER.KUHN@USDA.GOV  
 
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