WUUS53 KBIS 120155

SVRBIS

NDC001-037-085-120245-

/O.NEW.KBIS.SV.W.0270.260812T0155Z-260812T0245Z/



BULLETIN - EAS ACTIVATION REQUESTED

Severe Thunderstorm Warning

National Weather Service Bismarck ND

855 PM CDT Tue Aug 11 2026



The National Weather Service in Bismarck has issued a



* Severe Thunderstorm Warning for...

  South Central Grant County in south central North Dakota...

  Southwestern Sioux County in south central North Dakota...

  Eastern Adams County in southwestern North Dakota...



* Until 845 PM MDT.



* At 755 PM MDT, a severe thunderstorm was located 13 miles northeast

  of North Lemmon, or 34 miles east of Hettinger, moving southeast at

  15 mph.



  HAZARD...Tennis ball size hail and 60 mph wind gusts.



  SOURCE...Radar indicated.



  IMPACT...People and animals outdoors will be injured. Expect hail

           damage to roofs, siding, windows, and vehicles. Expect

           wind damage to roofs, siding, and trees.



* Locations impacted include...

  Standing Rock.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Anyone outdoors should move to shelter inside a well-built structure

and stay away from windows. This storm is capable of producing

dangerous hail and damaging winds.



&&



LAT...LON 4602 10206 4612 10187 4594 10145 4594 10199

TIME...MOT...LOC 0155Z 318DEG 15KT 4604 10193



THUNDERSTORM DAMAGE THREAT...CONSIDERABLE

HAIL THREAT...RADAR INDICATED

MAX HAIL SIZE...2.50 IN

WIND THREAT...RADAR INDICATED

MAX WIND GUST...60 MPH



$$



Adam