A short wave trough moved through the region while its affiliated surface boundary moved from southern Saskatchewan and northeast Montana into northwest North Dakota, and continued to move towards the southeast. Thunderstorms along this line intensified greatly as it settled to the southeast into an environment of elevated instability and deep layer shear, with multiple areas of severe weather developing. Well ahead of the line, another distinct area of severe weather developed where storms initiated along various outflow boundaries, particularly when two boundaries intersected. These storms were northerly moving. Eventually, the fontal boundary settled far enough south that all storms became focused along it. Many storms became very intense, especially a long-lived supercell thunderstorm that originally became severe near central Williams County before moving southeast and remaining severe all the way to northern Burleigh County. The most intense damage from this storm was in the Beulah Bay and Hazen Bay areas of northern Mercer County, where parts of roofs were torn off homes, large trees were uprooted, manufactured homes were severely damaged, and some campers and boats were flipped. Winds were estimated to be up to 95 mph. In addition, crops were severely damaged over a widespread area, with many fields flattened and determined to be a total loss. Along with the large hail and severe wind gusts with this episode, there was one tornado near Wilton in Burleigh County. No damage was reported with the tornado and so by National Weather Service policy the tornado is rated EF Unknown.

Thunderstorm Wind in MERCER, NORTH DAKOTA
From 01-AUG-23 18:25:00 to 01-AUG-23 18:40:00 (CST-6)
Location: PICK CITY
Magnitude: 83.00 EG
Property damage: 1.00M
Crop damage: 2.50M
Reported by: NWS Storm Survey

In the Beulah Bay area, two homes had parts of their roofs torn off, large trees were uprooted, manufactured homes were damaged, and multiple campers and boats on trailers were flipped. At Hazen Bay, campers were flipped and trees uprooted. Significant crop damage was also observed throughout this area and surrounding areas, with many fields appearing completely flattened suffering total crop loss.

Thunderstorm Wind in DUNN, NORTH DAKOTA
From 01-AUG-23 18:00:00 to 01-AUG-23 18:06:00 (MST-7)
Location: KILLDEER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm wind gusts were estimated by the public.

Tornado in BURLEIGH, NORTH DAKOTA
From 01-AUG-23 20:04:00 to 01-AUG-23 20:07:00 (CST-6)
Location: WILTON
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The tornado touched down in an open field southwest of Wilton and impacted no structures. There was no damage to evaluate and so by National Weather Service policy the tornado is rated EF Unknown.

Hail in DUNN, NORTH DAKOTA
From 01-AUG-23 18:04:00 to 01-AUG-23 18:08:00 (MST-7)
Location: MANNING
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MCLEAN, NORTH DAKOTA
From 01-AUG-23 18:11:00 to 01-AUG-23 18:14:00 (CST-6)
Location: RAUB
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in STUTSMAN, NORTH DAKOTA
From 01-AUG-23 18:25:00 to 01-AUG-23 18:28:00 (CST-6)
Location: COURTENAY
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in MCKENZIE, NORTH DAKOTA
From 01-AUG-23 15:47:00 to 01-AUG-23 15:50:00 (MST-7)
Location: CHARBONNEAU
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in STUTSMAN, NORTH DAKOTA
From 01-AUG-23 18:30:00 to 01-AUG-23 18:33:00 (CST-6)
Location: COURTENAY
Magnitude: 67.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in WILLIAMS, NORTH DAKOTA
From 01-AUG-23 16:02:00 to 01-AUG-23 16:06:00 (CST-6)
Location: EPPING
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DUNN, NORTH DAKOTA
From 01-AUG-23 18:30:00 to 01-AUG-23 18:34:00 (MST-7)
Location: EMERSON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in WILLIAMS, NORTH DAKOTA
From 01-AUG-23 16:20:00 to 01-AUG-23 16:24:00 (CST-6)
Location: WHEELOCK
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in STARK, NORTH DAKOTA
From 01-AUG-23 18:38:00 to 01-AUG-23 18:42:00 (MST-7)
Location: DICKINSON
Magnitude: 66.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in WILLIAMS, NORTH DAKOTA
From 01-AUG-23 16:24:00 to 01-AUG-23 16:27:00 (CST-6)
Location: RAY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in MERCER, NORTH DAKOTA
From 01-AUG-23 18:43:00 to 01-AUG-23 18:46:00 (CST-6)
Location: GOLDEN VLY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gusts were estimated by a trained spotter.

Thunderstorm Wind in WILLIAMS, NORTH DAKOTA
From 01-AUG-23 16:25:00 to 01-AUG-23 16:28:00 (CST-6)
Location: WHEELOCK
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in MERCER, NORTH DAKOTA
From 01-AUG-23 18:50:00 to 01-AUG-23 18:56:00 (CST-6)
Location: HAZEN
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in SIOUX, NORTH DAKOTA
From 01-AUG-23 13:55:00 to 01-AUG-23 13:58:00 (MST-7)
Location: SELFRIDGE
Magnitude: 1.00 
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Public

Large amount of one-inch diameter hail caused significant dents on a garage door and shattered a window on a home.

Hail in MCKENZIE, NORTH DAKOTA
From 01-AUG-23 16:37:00 to 01-AUG-23 16:41:00 (MST-7)
Location: WATFORD CITY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in MERCER, NORTH DAKOTA
From 01-AUG-23 18:56:00 to 01-AUG-23 19:01:00 (CST-6)
Location: HAZEN
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Hail in MERCER, NORTH DAKOTA
From 01-AUG-23 18:57:00 to 01-AUG-23 18:59:00 (CST-6)
Location: PICK CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in MCKENZIE, NORTH DAKOTA
From 01-AUG-23 15:25:00 to 01-AUG-23 15:29:00 (MST-7)
Location: CHARLSON
Magnitude: 70.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Public

A large tree was blown down and uprooted.

Thunderstorm Wind in WILLIAMS, NORTH DAKOTA
From 01-AUG-23 16:41:00 to 01-AUG-23 16:44:00 (CST-6)
Location: (ISN)SLOULIN FLD WIL
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm wind gusts were estimated by the public.

Funnel Cloud in MERCER, NORTH DAKOTA
From 01-AUG-23 18:58:00 to 01-AUG-23 19:01:00 (CST-6)
Location: STANTON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in MERCER, NORTH DAKOTA
From 01-AUG-23 19:05:00 to 01-AUG-23 19:09:00 (CST-6)
Location: HAZEN
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in MCKENZIE, NORTH DAKOTA
From 01-AUG-23 16:42:00 to 01-AUG-23 16:46:00 (MST-7)
Location: WATFORD CITY
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Large cottonwood tree branches were blown down.

Hail in BURLEIGH, NORTH DAKOTA
From 01-AUG-23 17:05:00 to 01-AUG-23 17:09:00 (CST-6)
Location: BISMARCK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in MOUNTRAIL, NORTH DAKOTA
From 01-AUG-23 17:15:00 to 01-AUG-23 17:18:00 (CST-6)
Location: NEW TOWN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MCLEAN, NORTH DAKOTA
From 01-AUG-23 19:08:00 to 01-AUG-23 19:10:00 (CST-6)
Location: RIVERDALE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MERCER, NORTH DAKOTA
From 01-AUG-23 19:08:00 to 01-AUG-23 19:11:00 (CST-6)
Location: STANTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in MOUNTRAIL, NORTH DAKOTA
From 01-AUG-23 17:10:00 to 01-AUG-23 17:14:00 (CST-6)
Location: SANISH
Magnitude: 70.00 EG
Property damage: 100.00K
Crop damage: 500.00K
Reported by: Emergency Manager

The end tower of an irrigation pivot was blown over and extensive crop damage occurred.

Thunderstorm Wind in MOUNTRAIL, NORTH DAKOTA
From 01-AUG-23 17:18:00 to 01-AUG-23 17:21:00 (CST-6)
Location: SANISH
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in MERCER, NORTH DAKOTA
From 01-AUG-23 19:31:00 to 01-AUG-23 19:34:00 (CST-6)
Location: HAZEN
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in MERCER, NORTH DAKOTA
From 01-AUG-23 19:45:00 to 01-AUG-23 19:50:00 (CST-6)
Location: STANTON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in MCLEAN, NORTH DAKOTA
From 01-AUG-23 18:13:00 to 01-AUG-23 18:23:00 (CST-6)
Location: ROSEGLEN
Magnitude: 70.00 EG
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Public

Significant damage occurred in White Shield and the surrounding area. Homes had vinyl siding damaged by wind driven hail. Vehicle windshields along with windows in homes were broken. In White Shield, four campers were blown over.

Hail in DUNN, NORTH DAKOTA
From 01-AUG-23 17:18:00 to 01-AUG-23 17:21:00 (MST-7)
Location: HALLIDAY
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in MOUNTRAIL, NORTH DAKOTA
From 01-AUG-23 17:20:00 to 01-AUG-23 17:23:00 (CST-6)
Location: NEW TOWN
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in MCLEAN, NORTH DAKOTA
From 01-AUG-23 19:52:00 to 01-AUG-23 19:56:00 (CST-6)
Location: WASHBURN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in MERCER, NORTH DAKOTA
From 01-AUG-23 19:58:00 to 01-AUG-23 20:01:00 (CST-6)
Location: HAZEN
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in MERCER, NORTH DAKOTA
From 01-AUG-23 19:12:00 to 01-AUG-23 19:19:00 (CST-6)
Location: HAZEN
Magnitude: 70.00 EG
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Public

Multiple hopper-style grain bins were blown over, with another bin damage. A wooden structure was also damaged.

Hail in MOUNTRAIL, NORTH DAKOTA
From 01-AUG-23 17:24:00 to 01-AUG-23 17:27:00 (CST-6)
Location: NEW TOWN ARPT
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MORTON, NORTH DAKOTA
From 01-AUG-23 17:25:00 to 01-AUG-23 17:28:00 (CST-6)
Location: MANDAN MUNI ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in MCLEAN, NORTH DAKOTA
From 01-AUG-23 20:06:00 to 01-AUG-23 20:10:00 (CST-6)
Location: WASHBURN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Funnel Cloud in MCLEAN, NORTH DAKOTA
From 01-AUG-23 20:07:00 to 01-AUG-23 20:10:00 (CST-6)
Location: WILTON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in BURLEIGH, NORTH DAKOTA
From 01-AUG-23 20:05:00 to 01-AUG-23 20:15:00 (CST-6)
Location: WILTON
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 50.00K
Reported by: NWS Employee

A large sunflower field was almost completely flattened by thunderstorm winds.

Hail in DUNN, NORTH DAKOTA
From 01-AUG-23 17:37:00 to 01-AUG-23 17:40:00 (MST-7)
Location: KILLDEER
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DUNN, NORTH DAKOTA
From 01-AUG-23 17:42:00 to 01-AUG-23 17:56:00 (MST-7)
Location: KILLDEER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 01-AUG-23 20:08:00 to 01-AUG-23 20:11:00 (CST-6)
Location: SIMS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gusts were estimated by a trained spotter.

Thunderstorm Wind in MCLEAN, NORTH DAKOTA
From 01-AUG-23 20:03:00 to 01-AUG-23 20:07:00 (CST-6)
Location: WASHBURN
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 500.00K
Reported by: Trained Spotter

Multiple sunflower fields between Washburn and Wilton were damaged by the strong winds.

Hail in MCLEAN, NORTH DAKOTA
From 01-AUG-23 17:47:00 to 01-AUG-23 17:50:00 (CST-6)
Location: RAUB
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MCLEAN, NORTH DAKOTA
From 01-AUG-23 17:59:00 to 01-AUG-23 18:04:00 (CST-6)
Location: RAUB
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm Wind in HETTINGER, NORTH DAKOTA
From 01-AUG-23 20:11:00 to 01-AUG-23 20:14:00 (MST-7)
Location: BENTLEY
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet