284
WGUS55 KBYZ 182233
FFWBYZ
WYC033-190130-
/O.NEW.KBYZ.FF.W.0015.260718T2233Z-260719T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BILLINGS MT
433 PM MDT SAT JUL 18 2026
THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
THE NORTHERN ELK BURN AREA IN...
NORTHWESTERN SHERIDAN COUNTY IN NORTH CENTRAL WYOMING...
* UNTIL 730 PM MDT.
* AT 433 PM MDT, DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN OVER THE NORTHERN ELK BURN AREA. BETWEEN 0.5 AND 1 INCH
OF RAIN HAS FALLEN. THE EXPECTED RAINFALL RATE IS 1 TO 2 INCHES IN
1 HOUR. FLASH FLOODING IS ONGOING OR EXPECTED TO BEGIN SHORTLY.
EXCESSIVE RAINFALL OVER THE BURN SCAR WILL RESULT IN DEBRIS FLOW.
THE DEBRIS FLOW CAN CONSIST OF ROCK, MUD, VEGETATION AND OTHER
LOOSE MATERIALS.
HAZARD...FLASH FLOODING CAUSED BY THUNDERSTORMS IN AND AROUND THE
NORTHERN ELK BURN AREA.
SOURCE...RADAR INDICATED.
IMPACT...FLOODING OF AREAS IN AND DOWNSTREAM OF THE NORTHERN ELK
BURN AREA.
* SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
DAYTON AND PARKMAN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
LIFE THREATENING FLOODING OF CREEKS, ROADS, AND NORMALLY DRY COULEES
IN AND DOWNSTREAM OF THE NORTHERN ELK BURN AREA IS LIKELY. IN
ADDITION TO THE FLASH FLOODING, THE HEAVY RAINS MAY TRIGGER
ROCKSLIDES, MUDSLIDES, AND DEBRIS FLOWS IN STEEP TERRAIN.
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES. ROADS AND DRIVEWAYS MAY BE DAMAGED OR
WASHED OUT IN PLACES.
LAT...LON 4500 10735 4494 10732 4490 10724 4487 10719
4486 10723 4483 10727 4481 10731 4479 10734
4479 10739 4481 10743 4481 10750 4482 10750
4483 10748 4484 10748 4483 10751 4482 10755
4484 10760 4494 10769 4499 10766 4500 10763
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
MATOS
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