308  
WGUS55 KBYZ 102153  
FFWBYZ  
MTC065-110100-  
/O.NEW.KBYZ.FF.W.0002.210610T2153Z-210611T0100Z/  
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
 
BULLETIN - EAS ACTIVATION REQUESTED  
FLASH FLOOD WARNING  
NATIONAL WEATHER SERVICE BILLINGS MT  
353 PM MDT THU JUN 10 2021  
 
THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A  
 
* FLASH FLOOD WARNING FOR...  
THE BOBCAT BURN AREA IN...  
CENTRAL MUSSELSHELL COUNTY IN CENTRAL MONTANA...  
 
* UNTIL 700 PM MDT.  
 
* AT 353 PM MDT, DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING  
HEAVY RAIN OVER THE BOBCAT BURN AREA. UP TO 0.5 INCHES OF RAIN  
HAVE FALLEN. THE EXPECTED RAINFALL RATE IS 1 TO 2 INCHES IN 2  
HOURS. FLASH FLOODING IS ONGOING OR EXPECTED TO BEGIN SHORTLY.  
 
EXCESSIVE RAINFALL OVER THE BURN SCAR WILL RESULT IN DEBRIS FLOW  
MOVING THROUGH THE HALFBREED CREEK, EAST PARROT CREEK, PARROT CREEK,  
WEST PARROT CREEK, MUSSELSHELL RIVER, COW GULCH, RAILROAD CREEK,  
FATTIG CREEK, AND REHDER COULEE.  
 
ROADS IMPACTED INCLUDE HIGHWAY 87, BEARD ROAD, WEST PARROT CREEK  
ROAD, EAST PARROT CREEK ROAD, FATTIG CREEK ROAD, REHDER ROAD. THE  
DEBRIS FLOW CAN CONSIST OF ROCK, MUD, VEGETATION AND OTHER LOOSE  
MATERIALS.  
 
HAZARD...FLASH FLOODING CAUSED BY THUNDERSTORMS IN AND AROUND  
THE BOBCAT BURN AREA.  
 
SOURCE...RADAR.  
 
IMPACT...FLOODING OF AREAS IN AND DOWNSTREAM OF THE BOBCAT BURN  
AREA.  
 
* SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...  
KLEIN.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
REMAIN ALERT FOR FLOODING OF CREEKS, STREAMS, AND NORMALLY DRY  
COULEES EVEN IN AREAS NOT RECEIVING RAINFALL DOWNSTREAM OF THE BURN  
AREA. THESE CAN BECOME RAGING KILLER CURRENTS IN A MATTER OF MINUTES  
EVEN FROM DISTANT RAINFALL UPSTREAM.  
 
PLEASE REPORT OBSERVED FLOODING TO LOCAL EMERGENCY OFFICIALS AND  
REQUEST THEY PASS THE INFORMATION TO THE NATIONAL WEATHER SERVICE IN  
BILLINGS.  
 

 
 
LAT...LON 4627 10839 4626 10844 4631 10849 4635 10850  
4638 10855 4643 10857 4643 10855 4644 10851  
4646 10846 4647 10835 4650 10828 4651 10824  
4649 10823 4641 10823 4635 10826 4631 10825  
4627 10829 4627 10831 4627 10833 4626 10833  
 
FLASH FLOOD...RADAR INDICATED  
EXPECTED RAINFALL...1-2 INCHES IN 2 HOURS  
 

 
 
VERTZ  
 
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