Alert archive / North Dakota / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 21, NWS Bismarck, ND

June 7, 2026Dunn County, McKenzie County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 7, 2026, 4:50 PM MDT for Dunn County, McKenzie County, North Dakota. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 7, 2026, 4:50 PM MDT (22:50 UTC)
Expired: Jun 7, 2026, 5:45 PM MDT
In force: 55 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Damage threat: Considerable
Hail: 1.75 in
Wind: 60.0 mph

Counties Dunn County, ND, McKenzie County, ND

The radar

The Bismarck radar (KBIS), 208 km from the middle of the area, began a volume at 22:53 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 7, 2:58 PM MDT	Severe Thunderstorm Watch PDS	SPC	11 hr

The text

As transmitted.

057 
WUUS53 KBIS 072250
SVRBIS
NDC025-053-072345-
/O.NEW.KBIS.SV.W.0021.260607T2250Z-260607T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Bismarck ND
550 PM CDT Sun Jun 7 2026

The National Weather Service in Bismarck has issued a

* Severe Thunderstorm Warning for...
  South Central McKenzie County in northwestern North Dakota...
  Northwestern Dunn County in southwestern North Dakota...

* Until 645 PM CDT /545 PM MDT/.

* At 550 PM CDT /450 PM MDT/, a severe thunderstorm was located near
  Grassy Butte, or 29 miles south of Watford City, moving north 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...
  Theodore Roosevelt National Park North Unit and Grassy Butte.

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 4733 10348 4775 10352 4763 10286 4733 10320
TIME...MOT...LOC 2250Z 193DEG 19KT 4739 10333

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

$$

Johnson

2 follow-up statements

224 
WWUS53 KBIS 072300
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
600 PM CDT Sun Jun 7 2026

NDC025-053-072345-
/O.CON.KBIS.SV.W.0021.000000T0000Z-260607T2345Z/
Dunn ND-McKenzie ND-
600 PM CDT Sun Jun 7 2026 /500 PM MDT Sun Jun 7 2026/

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
/545 PM MDT/ FOR SOUTH CENTRAL MCKENZIE AND NORTHWESTERN DUNN
COUNTIES...

At 600 PM CDT /500 PM MDT/, a severe thunderstorm was located near
Grassy Butte, or 25 miles south of Watford City, moving north at 20
mph.

HAZARD...Two inch 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...
  Theodore Roosevelt National Park North Unit and Grassy Butte.

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 4733 10348 4775 10352 4763 10286 4733 10320
TIME...MOT...LOC 2250Z 188DEG 17KT 4739 10334

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

$$

Johnson

525 
WWUS53 KBIS 072321
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
621 PM CDT Sun Jun 7 2026

NDC025-053-072345-
/O.CON.KBIS.SV.W.0021.000000T0000Z-260607T2345Z/
Dunn ND-McKenzie ND-
621 PM CDT Sun Jun 7 2026 /521 PM MDT Sun Jun 7 2026/

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
/545 PM MDT/ FOR SOUTH CENTRAL MCKENZIE AND NORTHWESTERN DUNN
COUNTIES...

At 621 PM CDT /521 PM MDT/, a severe thunderstorm was located 6 miles
south of Theodore Roosevelt National Park North Unit, or 20 miles
south of Watford City, moving north at 20 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...
  Theodore Roosevelt National Park North Unit and Grassy Butte.

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 4733 10348 4775 10352 4763 10286 4733 10320
TIME...MOT...LOC 2300Z 189DEG 15KT 4743 10333

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

$$

Johnson

The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 6, 7:15 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Divide	46 min
Jun 6, 9:03 PM MDT	Special Weather Statement	BIS	Bowman	42 min
Jun 6, 9:35 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Divide, Williams	55 min
Jun 6, 9:45 PM MDT	Special Weather Statement	BIS	Bowman	45 min
Jun 6, 10:29 PM MDT	Severe Thunderstorm Warning	BIS	Divide, Williams	46 min
Jun 6, 11:02 PM MDT	Severe Thunderstorm Warning	BIS	Divide, Williams	58 min
Jun 6, 11:35 PM MDT	Special Weather Statement	BIS	Billings, Stark	40 min
Jun 7, 12:17 AM MDT	Wind Advisory	BIS	Bottineau, Burleigh, Dickey, Emmons, Foster, Grant and 14 more	19 hr
Jun 7, 12:57 AM MDT	Special Weather Statement	BIS	McKenzie	33 min
Jun 7, 1:05 AM MDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	55 min
Jun 7, 1:58 AM MDT	Severe Thunderstorm Warning	BIS	McKenzie, Mountrail	62 min
Jun 7, 2:03 AM MDT	Special Weather Statement	BIS	Williams	27 min
Jun 7, 3:00 AM MDT	Special Weather Statement	BIS	Ward	30 min
Jun 7, 3:05 AM MDT	Special Weather Statement	BIS	Williams	25 min
Jun 7, 3:11 AM MDT	Special Weather Statement	BIS	Bottineau	34 min
Jun 7, 3:26 AM MDT	Special Weather Statement	BIS	Renville	34 min
Jun 7, 4:14 AM MDT	Special Weather Statement	BIS	Bottineau	16 min
Jun 7, 4:46 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Golden Valley	74 min
Jun 7, 5:23 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Billings, Golden Valley	67 min
Jun 7, 5:28 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Bowman	47 min
Jun 7, 5:35 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Dunn, McKenzie, Williams	55 min
Jun 7, 5:35 PM MDT	Severe Thunderstorm Warning	BIS	Golden Valley	55 min
Jun 7, 5:37 PM MDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, McKenzie	53 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2026 Every severe thunderstorm warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.