760  
FNUS75 KBYZ 171750  
FWSBYZ  
 
SPOT FORECAST FOR EAST SMITH CR PILES...USFS  
NATIONAL WEATHER SERVICE BILLINGS MT  
1050 AM MST MON NOV 17 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 2000 MST ON NOVEMBER 17.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION  
 
THERE IS A SLIGHT CHANCE (10%) OF RAIN AND SNOW SHOWERS OVERNIGHT INTO  
EARLY TUESDAY MORNING, WITH LITTLE TO NO SNOW ACCUMULATION EXPECTED.  
OTHERWISE, THE BEST CHANCE (10%) FOR AT LEAST 0.1" OF PRECIPITATION  
AND LIGHT SNOW ACCUMULATION ARRIVES LATE TUESDAY NIGHT AND CONTINUES  
THROUGH THE DAY WEDNESDAY. OVER THE RIDGETOP, WIND GUSTS WILL  
GENERALLY BE AROUND 10 TO 15 MPH.  
   
REST OF TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW  
SHOWERS OVERNIGHT.  
CWR.................5 PERCENT.  
MIN TEMPERATURE.....31-35.  
MAX HUMIDITY........92-96 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......MOSTLY LIGHT WINDS. SOUTHWEST WINDS UP TO  
15 MPH OVER RIDGETOP.  
MIXING HEIGHT.......400 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
 
TIME (MST) 8 PM 11 PM 2 AM 5 AM  
SKY (%).........75 76 71 64  
WEATHER COV..... RNSN RNSN RNSN  
WEATHER TYPE....NONE S CHC S CHC S CHC  
TSTM COV........  
TEMP............38 37 36 35  
RH..............84 85 87 90  
20 FT WIND......SW 5G12 SW 5G15 SW 5G10 SW 4G8  
   
TUESDAY  
 
SKY/WEATHER.........PARTLY SUNNY.  
CWR.................LESS THAN 5 PERCENT.  
MAX TEMPERATURE.....41-45.  
MIN HUMIDITY........62-66 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHWEST 8 TO 12 MPH.  
MIXING HEIGHT.......INCREASING TO 3100 FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
 
TIME (MST) 6 AM 9 AM NOON 3 PM  
SKY (%).........61 63 47 57  
WEATHER COV.....S CHC  
WEATHER TYPE....RNSN NONE NONE NONE  
TSTM COV........  
TEMP............34 35 43 42  
RH..............90 89 70 65  
20 FT WIND......SW 4G7 SW 5G8 SW 6G11 SW 6G13  
   
TUESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN  
SHOWERS AND SNOW SHOWERS LATE IN THE EVENING.  
CHANCE OF SNOW SHOWERS EARLY IN THE MORNING.  
CWR.................10 PERCENT.  
MIN TEMPERATURE.....28-32.  
MAX HUMIDITY........83-87 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHWEST 5 TO 10 MPH.  
MIXING HEIGHT.......DECREASING TO 100 FT AGL OVERNIGHT.  
TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.  
 
TIME (MST) 6 PM 9 PM MIDNGT 3 AM  
SKY (%).........56 48 46 44  
WEATHER COV..... S CHC CHC  
WEATHER TYPE....NONE NONE RNSN SNSHWR  
TSTM COV........  
TEMP............39 35 34 33  
RH..............70 73 76 80  
20 FT WIND......SW 5G8 SW 5G8 SW 5G8 SW 5G8  
   
WEDNESDAY  
 
SKY/WEATHER.........PARTLY SUNNY. CHANCE OF SNOW SHOWERS IN THE  
MORNING, THEN CHANCE OF RAIN AND SNOW SHOWERS.  
CWR.................10 PERCENT.  
MAX TEMPERATURE.....35-39.  
MIN HUMIDITY........66-70 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......NORTHWEST WINDS 5 TO 10 MPH.  
MIXING HEIGHT.......INCREASING TO 3400 FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....WEST 10 TO 20 MPH DECREASING TO 6 TO 10 MPH  
LATE IN THE AFTERNOON.  
 
TIME (MST) 6 AM 9 AM NOON 3 PM  
SKY (%).........57 60 56 53  
WEATHER COV.....CHANCE CHANCE CHANCE CHANCE  
WEATHER TYPE....SNSHWR SNSHWR RNSN RNSN  
TSTM COV........  
TEMP............31 32 36 36  
RH..............84 82 72 69  
20 FT WIND......NW 5G8 NW 5G10 NW 7G13 NW 7G14  
 
 
FORECASTER...ARCHER  
REQUESTED BY...GREG OYLER  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2526140.0/BYZ  
.DELDT 11/17/25  
.FORMATTERVERSION 2.0.0  
.EMAIL GREGORY.OYLER@USDA.GOV  
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