034  
FNUS75 KBYZ 191854  
FWSBYZ  
 
SPOT FORECAST FOR TEST - VIRGIL...NWS  
NATIONAL WEATHER SERVICE BILLINGS MT  
1154 AM MST WED FEB 19 2025  
 
FORECAST IS BASED ON FORECAST START TIME OF 1800 MST ON FEBRUARY 19.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY.  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MIN TEMPERATURE.....6 BELOW-10 BELOW ZERO.  
MAX HUMIDITY........77-81 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......LIGHT WINDS.  
 
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........59 61 60 59 61 67 76 82 82 85 85 85  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............0 -3 -6 -7 -8 -8 -8 -7 -5 -3 -1 2  
RH..............69 68 69 69 73 72 75 73 73 73 74 73  
20 FT WIND DIR..NE N N W SW SW SW SW SW SW SW S  
20 FT WIND SPD..2 2 2 2 2 2 2 2 2 2 2 2  
20 FT WIND GUST.4 4 4 4 4  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY.  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....36-40.  
MIN HUMIDITY........70-74 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......LIGHT WINDS BECOMING SOUTHWEST AROUND 5 MPH  
LATE IN THE AFTERNOON.  
 
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........80 85 81 89 81 73 73 73 56 56 56 52  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............5 9 8 16 22 27 31 34 36 37 37 36  
RH..............73 75 78 78 77 76 74 73 72 73 74 76  
20 FT WIND DIR..S SW SW SW SW SW SW SW SW SW SW SW  
20 FT WIND SPD..2 2 2 2 3 4 4 4 5 5 5 5  
20 FT WIND GUST. 4 5 6 6 6 6 7 7 7 7  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN  
BECOMING MOSTLY CLOUDY THEN BECOMING PARTLY  
CLOUDY.  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MIN TEMPERATURE.....17-21.  
MAX HUMIDITY........78-82 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 7 MPH.  
 
TIME (MST) 6 PM 9 PM MIDNGT 3 AM  
SKY (%).........52 42 45 51  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE  
TSTM COV........  
CHC OF LTNG (%).0 0 0 0  
TEMP............34 28 26 22  
RH..............77 78 79 79  
20 FT WIND......SW 5G7 SW 6G8 W 6G10 W 6G10  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CWR.................0 PERCENT.  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....38-42.  
MIN HUMIDITY........67-71 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHWEST WINDS 7 TO 10 MPH.  
 
TIME (MST) 6 AM 9 AM NOON 3 PM  
SKY (%).........26 34 22 29  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE  
TSTM COV........  
CHC OF LTNG (%).0 0 0 0  
TEMP............19 24 36 40  
RH..............80 77 73 69  
20 FT WIND......SW 7G10 SW 7G10 SW 9G13 W 10G14  
 

 
FORECASTER...MIDDENDORF  
REQUESTED BY...VIRGIL MIDDENDORF  
TYPE OF REQUEST...WILDFIRE  
.TAG 2503257.0/BYZ  
.DELDT 02/19/25  
.FORMATTERVERSION 2.0.0  
.EMAIL VIRGIL.MIDDENDORF@NOAA.GOV  
 
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