011  
WWUS85 KBYZ 170345  
RFWBYZ  
 
URGENT - FIRE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE BILLINGS MT  
945 PM MDT WED AUG 16 2017  
 
MTZ127>133-171545-  
/O.CON.KBYZ.FW.W.0006.170817T1800Z-170818T0300Z/  
GOLDEN VALLEY COUNTY/MUSSELSHELL COUNTY-YELLOWSTONE COUNTY-  
CROW INDIAN RESERVATION/BIGHORN CANYON REC AREA-  
NORTHERN ROSEBUD/NORTHERN TREASURE COUNTIES-  
NORTHERN CHEYENNE INDIAN RESERVATION/ASHLAND RANGER DISTRICT  
CUSTER NATL FOREST-CUSTER COUNTY-  
SIOUX RANGER DISTRICT CUSTER NATIONAL FOREST-  
945 PM MDT WED AUG 16 2017  
 
...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 9 PM MDT  
THURSDAY...  
 
* IMPACTS: LOW HUMIDITIES, STRONG GUSTY WINDS, AND WIND SHIFT  
WITH A COLD FRONT WILL CREATE ERRATIC FIRE BEHAVIOR AND NEW  
FIRE STARTS.  
 
* AFFECTED AREA:  
IN SOUTH CENTRAL MT FIRE ZONES...127...128...129.  
IN SOUTHEAST MT FIRE ZONES...130...131...132.  
IN SOUTHEAST MT AND NORTHWEST SD FIRE ZONE....133.  
 
* COUNTIES AFFECTED:  
IN CENTRAL MT...GOLDEN VALLEY...MUSSELSHELL.  
IN NORTHWEST SD...HARDING.  
IN SOUTH CENTRAL MT...BIG HORN...CARBON...YELLOWSTONE.  
IN SOUTHEAST MT...CARTER...CUSTER...FALLON...POWDER RIVER  
ROSEBUD...TREASURE.  
 
* COLD FRONT: WINDS WILL SHIFT OUT OF THE NORTHWEST BEHIND A COLD  
FRONTAL PASSAGE THURSDAY MORNING/AFTERNOON. A FEW ISOLATED  
THUNDERSTORMS ARE POSSIBLE WITH THE COLD FRONT.  
 
* WIND: NORTHWEST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH.  
 
* HUMIDITY: 15 TO 20 PERCENT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE  
EITHER OCCURRING NOW, OR WILL SHORTLY. A COMBINATION OF STRONG  
WINDS, LOW RELATIVE HUMIDITY, AND WARM TEMPERATURES CAN CONTRIBUTE  
TO EXTREME FIRE BEHAVIOR.  
 

 
 

 
 
HTTP://WEATHER.GOV/BILLINGS  
 
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