971 
WUUS53 KBIS 120041
SVRBIS
NDC059-120130-
/O.NEW.KBIS.SV.W.0265.260812T0041Z-260812T0130Z/

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

The National Weather Service in Bismarck has issued a

* Severe Thunderstorm Warning for...
  East Central Morton County in south central North Dakota...

* Until 830 PM CDT.

* At 741 PM CDT, a severe thunderstorm was located 12 miles north of
  Flasher, or 22 miles southwest of Mandan, 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...
  St. Anthony and Fish Creek Dam.

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 4649 10128 4653 10130 4663 10130 4663 10134
      4673 10139 4682 10093 4644 10062 4647 10105
TIME...MOT...LOC 0041Z 253DEG 21KT 4662 10124

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

$$

Anglin

652 
WWUS53 KBIS 120059
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
759 PM CDT Tue Aug 11 2026

NDC059-120130-
/O.CON.KBIS.SV.W.0265.000000T0000Z-260812T0130Z/
Morton ND-
759 PM CDT Tue Aug 11 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR
EAST CENTRAL MORTON COUNTY...

At 759 PM CDT, a severe thunderstorm was located 9 miles west of St.
Anthony, or 16 miles southwest of Mandan, moving east at 25 mph.

HAZARD...Two inch hail and 60 mph wind gusts.

SOURCE...Broadcast media reported 2 inch diameter hail north of
         Flasher.

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...
  St. Anthony and Fish Creek Dam.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Anyone outdoors should move to shelter inside a well-built structure
and stay away from windows. This storm has produced dangerous hail
and is capable of producing damaging winds.

&&

LAT...LON 4649 10128 4653 10130 4663 10130 4666 10131
      4674 10132 4679 10091 4644 10062 4647 10105
TIME...MOT...LOC 0041Z 253DEG 21KT 4662 10124

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...OBSERVED
MAX HAIL SIZE...2.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Anglin

226 
WWUS53 KBIS 120117
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
817 PM CDT Tue Aug 11 2026

NDC059-120130-
/O.CON.KBIS.SV.W.0265.000000T0000Z-260812T0130Z/
Morton ND-
817 PM CDT Tue Aug 11 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR
EAST CENTRAL MORTON COUNTY...

At 817 PM CDT, a severe thunderstorm was located near St. Anthony, or
10 miles south of Mandan, 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...
  St. Anthony.

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 4658 10109 4661 10121 4663 10120 4667 10119
      4676 10115 4679 10091 4650 10067 4653 10088
TIME...MOT...LOC 0059Z 253DEG 21KT 4665 10109

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

$$

Anglin

317 
WWUS53 KBIS 120125
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
825 PM CDT Tue Aug 11 2026

NDC059-120135-
/O.EXP.KBIS.SV.W.0265.000000T0000Z-260812T0130Z/
Morton ND-
825 PM CDT Tue Aug 11 2026

...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 830 PM CDT FOR EAST
CENTRAL MORTON COUNTY...

The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 100 AM CDT for a
portion of south central North Dakota.

&&

LAT...LON 4658 10109 4661 10121 4663 10120 4667 10119
      4676 10115 4679 10091 4650 10067 4653 10088
TIME...MOT...LOC 0117Z 253DEG 21KT 4668 10094

$$

Anglin