967 
WUUS53 KBIS 112245
SVRBIS
NDC007-033-087-112345-
/O.NEW.KBIS.SV.W.0256.260811T2245Z-260811T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Bismarck ND
Issued by National Weather Service Grand Forks ND
445 PM MDT Tue Aug 11 2026

The National Weather Service in Bismarck has issued a

* Severe Thunderstorm Warning for...
  Southern Golden Valley County in southwestern North Dakota...
  Southwestern Billings County in southwestern North Dakota...
  Western Slope County in southwestern North Dakota...

* Until 545 PM MDT.

* At 444 PM MDT, a severe thunderstorm was located near Alpha, or 19
  miles southeast of Beach, moving southeast at 25 mph.

  HAZARD...Golf 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...
  Alpha and Three V Crossing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4668 10398 4683 10381 4663 10323 4630 10354
      4655 10392
TIME...MOT...LOC 2244Z 305DEG 24KT 4669 10377 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Lynch

273 
WWUS53 KBIS 112257 RRA
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
Issued by National Weather Service Grand Forks ND
457 PM MDT Tue Aug 11 2026

NDC007-033-087-112345-
/O.CON.KBIS.SV.W.0256.000000T0000Z-260811T2345Z/
Golden Valley ND-Billings ND-Slope ND-
457 PM MDT Tue Aug 11 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM MDT
FOR SOUTHEASTERN GOLDEN VALLEY...SOUTHWESTERN BILLINGS AND NORTH
CENTRAL SLOPE COUNTIES...

At 457 PM MDT, a severe thunderstorm was located 7 miles east of
Alpha, or 25 miles southeast of Beach, moving southeast at 30 mph.

HAZARD...Golf 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...
Alpha.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4673 10392 4683 10381 4669 10341 4646 10359
      4657 10381
TIME...MOT...LOC 2257Z 305DEG 24KT 4664 10366 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Lynch

673 
WWUS53 KBIS 112308
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
Issued by National Weather Service Grand Forks ND
508 PM MDT Tue Aug 11 2026

NDC007-033-087-112345-
/O.CON.KBIS.SV.W.0256.000000T0000Z-260811T2345Z/
Golden Valley ND-Billings ND-Slope ND-
508 PM MDT Tue Aug 11 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM MDT
FOR SOUTHEASTERN GOLDEN VALLEY...SOUTHWESTERN BILLINGS AND NORTH
CENTRAL SLOPE COUNTIES...

At 508 PM MDT, a severe thunderstorm was located 10 miles east of
Three V Crossing, or 29 miles north of Bowman, moving southeast at 30
mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

This severe thunderstorm will remain over mainly rural areas of
southeastern Golden Valley, southwestern Billings and north central
Slope Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4669 10341 4646 10359 4657 10381 4669 10376
      4678 10366
TIME...MOT...LOC 2308Z 305DEG 24KT 4660 10357 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Lynch

713 
WUUS53 KBIS 112237
SVRBIS
NDC007-033-087-112330-
/O.NEW.KBIS.SV.W.0256.260811T2237Z-260811T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Bismarck ND
537 PM CDT Tue Aug 11 2026

The National Weather Service in Bismarck has issued a

* Severe Thunderstorm Warning for...
  Southwestern Billings County in southwestern North Dakota...
  Southern Golden Valley County in southwestern North Dakota...
  North Central Slope County in southwestern North Dakota...

* Until 530 PM MDT.

* At 437 PM MDT, a severe thunderstorm was located 8 miles east of
  Golva, or 15 miles southeast of Beach, moving east at 25 mph.

  HAZARD...Golf 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...
  Alpha.

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 4668 10399 4686 10390 4681 10331 4663 10326
      4649 10345
TIME...MOT...LOC 2237Z 280DEG 19KT 4674 10383

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Adam