430  
FNUS75 KBYZ 211808  
FWSBYZ  
 
SPOT FORECAST FOR TAKES GUN DRIVE GAS LEAK...CROW PD  
NATIONAL WEATHER SERVICE BILLINGS MT  
1208 PM MDT MON SEP 21 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 1200 MDT ON SEPTEMBER 21.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION  
 
WARM AND DRY CONDITIONS WILL PREVAIL AT THE SITE THROUGH TUESDAY.  
EXPECT LIGHT SOUTHEAST WINDS INTO TUESDAY MORNING, BEFORE  
SHIFTING TO THE NORTHEAST BY TUESDAY AFTERNOON. MIXING HEIGHTS  
WILL RANGE FROM 300 TO 500 FEET OVERNIGHT TONIGHT. MATOS  
   
REST OF TODAY  
 
SKY/WEATHER.........SUNNY.  
CHANCE OF PCPN......0 PERCENT.  
MAX TEMPERATURE.....70-74.  
MIN HUMIDITY........49-53 PERCENT.  
SURFACE WINDS (MPH).SOUTHEAST WINDS 4 TO 7 MPH.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR.  
CHANCE OF PCPN......0 PERCENT.  
MIN TEMPERATURE.....42-46.  
MAX HUMIDITY........98-100 PERCENT.  
SURFACE WINDS (MPH).SOUTHEAST WINDS 5 TO 9 MPH.  
   
TUESDAY  
 
SKY/WEATHER.........SUNNY.  
CHANCE OF PCPN......0 PERCENT.  
MAX TEMPERATURE.....77-81.  
MIN HUMIDITY........34-38 PERCENT.  
SURFACE WINDS (MPH).LIGHT SOUTH WINDS BECOMING NORTHEAST  
UP TO 7 MPH IN THE AFTERNOON.  
 
 
FORECASTER...MATOS  
REQUESTED BY...RANDY PRETTY ON TOP  
TYPE OF REQUEST...HAZMAT  
.TAG 2622255.0/BYZ  
.DELDT 09/21/26  
.FORMATTERVERSION 2.0.0  
.EMAIL CORDELL.ANTHONY@BIA.GOV,RANDY.PRETTYONTOP@BIA.GOV  
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