711  
FNUS75 KBYZ 062033  
FWSBYZ  
 
SPOT FORECAST FOR TEST - FWS EMAIL...NWS  
NATIONAL WEATHER SERVICE BILLINGS MT  
133 PM MST TUE JAN 6 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 1400 MST ON JANUARY 06.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION  
 
   
REST OF TODAY  
 
SKY/WEATHER.........MOSTLY CLOUDY.  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....49-53.  
MIN HUMIDITY........33-37 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......WEST WINDS 8 TO 16 MPH WITH GUSTS TO AROUND 22  
MPH.  
RIDGETOP...........WEST 55 TO 60 MPH.  
MIXING HEIGHT.......1100 FT AGL EARLY IN THE MORNING INCREASING TO  
4100 FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....WEST 16 TO 24 MPH DECREASING TO AROUND 13 MPH  
LATE IN THE AFTERNOON.  
 
TIME (MST) 2PM 3PM 4PM 5PM  
SKY (%).........64 76 84 84  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF LTNG (%).0 0 0 0  
TEMP............50 51 49 46  
RH..............35 35 37 41  
20 FT WIND DIR..W W W W  
20 FT WIND SPD..16 16 15 13  
20 FT WIND GUST.22 22 20 18  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY.  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MIN TEMPERATURE.....34-38.  
MAX HUMIDITY........54-58 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 11 MPH.  
RIDGETOP...........WEST AROUND 55 MPH DECREASING TO AROUND 45 MPH  
EARLY IN THE MORNING.  
MIXING HEIGHT.......800 FT AGL EARLY IN THE EVENING DECREASING TO  
700 FT AGL OVERNIGHT.  
TRANSPORT WINDS.....SOUTHWEST 12 TO 18 MPH.  
 
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........87 85 88 89 86 82 75 79 75 66 72 79  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............44 42 40 40 39 39 37 36 36 36 36 36  
RH..............46 47 51 52 53 52 55 55 56 55 56 54  
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW SW SW  
20 FT WIND SPD..11 9 8 7 7 7 8 8 9 9 10 10  
20 FT WIND GUST.16 13 12 10 10 10 12 12 13 13 14 14  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
SLIGHT CHANCE OF RAIN SHOWERS LATE IN THE  
MORNING. CHANCE OF SNOW SHOWERS LATE IN THE  
AFTERNOON.  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.2 PERCENT.  
MAX TEMPERATURE.....49-53.  
MIN HUMIDITY........31-35 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......WEST WINDS 5 TO 14 MPH.  
RIDGETOP...........WEST AROUND 45 MPH DECREASING TO AROUND 30 MPH  
LATE IN THE AFTERNOON.  
MIXING HEIGHT.......700 FT AGL EARLY IN THE MORNING INCREASING TO  
5300 FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....SOUTHWEST 18 TO 24 MPH SHIFTING TO THE  
NORTHWEST 13 TO 18 MPH LATE IN THE AFTERNOON.  
 
TIME (MST) 6 AM 9 AM NOON 3 PM  
SKY (%).........76 46 25 50  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE  
TSTM COV........  
CHC OF LTNG (%).0 0 0 0  
TEMP............36 38 50 50  
RH..............54 54 42 33  
20 FT WIND......SW 10G14 W 11G16 W 13G18 W 13G18  
 
 
FORECASTER...MIDDENDORF  
REQUESTED BY...VIRGIL MIDDENDORF  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2528440.0/BYZ  
.DELDT 01/06/26  
.FORMATTERVERSION 2.0.0  
.EMAIL VIRGIL.MIDDENDORF@NOAA.GOV,VIRGIL.MIDDENDORF@GMAIL.COM  
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