A compact upper level low approached North Dakota while strong instability and very strong deep layer shear were present over a broad portion of the state. Storms initiated over eastern Montana into southwest North Dakota and moved across the area in the evening and overnight hours. Storms were slow to intensify at first, then around 730 pm CDT explosive growth occurred over western North Dakota. Strong supercells developed producing very large hail along with funnel clouds. There were two confirmed tornadoes. One caused damage to a home south of Mott in Hettinger County, while the other occurred over rural areas between Arnegard and Watford City in McKenzie County. Severe storms continued overnight with the threat switching to primarily strong winds over south central North Dakota where there were multiple reports of damage. The greatest damage was in Logan County where a high-voltage electrical transmission structure was toppled.

Hail in HETTINGER, NORTH DAKOTA
From 21-JUN-16 18:48:00 to 21-JUN-16 18:50:00 (MST-7)
Location: REGENT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SLOPE, NORTH DAKOTA
From 21-JUN-16 18:55:00 to 21-JUN-16 19:05:00 (MST-7)
Location: AMIDON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in HETTINGER, NORTH DAKOTA
From 21-JUN-16 18:55:00 to 21-JUN-16 19:07:00 (MST-7)
Location: MOTT
Magnitude: 2.50 
Property damage: 150.00K
Crop damage: 50.00K
Reported by: Emergency Manager

Hail in WILLIAMS, NORTH DAKOTA
From 21-JUN-16 19:18:00 to 21-JUN-16 19:21:00 (CST-6)
Location: EPPING
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MCKENZIE, NORTH DAKOTA
From 21-JUN-16 19:00:00 to 25-JUN-16 19:05:00 (MST-7)
Location: KEENE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MCKENZIE, NORTH DAKOTA
From 21-JUN-16 19:19:00 to 21-JUN-16 19:30:00 (MST-7)
Location: FAIRVIEW
Magnitude: 1.75 
Property damage: 25.00K
Crop damage: 50.00K
Reported by: Trained Spotter

Hail in WILLIAMS, NORTH DAKOTA
From 21-JUN-16 19:40:00 to 21-JUN-16 19:44:00 (CST-6)
Location: BONETRAILL
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MCKENZIE, NORTH DAKOTA
From 21-JUN-16 20:12:00 to 21-JUN-16 20:15:00 (MST-7)
Location: WATFORD CITY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 15.00K
Reported by: Law Enforcement

Hail in MCKENZIE, NORTH DAKOTA
From 21-JUN-16 20:08:00 to 21-JUN-16 20:12:00 (MST-7)
Location: WATFORD CITY
Magnitude: 1.75 
Property damage: 250.00K
Crop damage: 50.00K
Reported by: Law Enforcement

Thunderstorm Wind in MERCER, NORTH DAKOTA
From 21-JUN-16 20:20:00 to 21-JUN-16 20:23:00 (CST-6)
Location: PICK CITY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The wind gust speed was estimate by the public.

Thunderstorm Wind in MCKENZIE, NORTH DAKOTA
From 21-JUN-16 20:13:00 to 21-JUN-16 20:16:00 (MST-7)
Location: WATFORD CITY
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in SIOUX, NORTH DAKOTA
From 21-JUN-16 20:20:00 to 21-JUN-16 20:23:00 (MST-7)
Location: SELFRIDGE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MOUNTRAIL, NORTH DAKOTA
From 21-JUN-16 20:33:00 to 21-JUN-16 20:36:00 (CST-6)
Location: SANISH
Magnitude: 2.50 
Property damage: 10.00K
Crop damage: 25.00K
Reported by: Public

Hail in DUNN, NORTH DAKOTA
From 21-JUN-16 20:55:00 to 21-JUN-16 20:58:00 (MST-7)
Location: KILLDEER
Magnitude: 2.50 
Property damage: 20.00K
Crop damage: 20.00K
Reported by: Public

Hail in MERCER, NORTH DAKOTA
From 21-JUN-16 21:22:00 to 21-JUN-16 21:24:00 (CST-6)
Location: STANTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in MERCER, NORTH DAKOTA
From 21-JUN-16 22:22:00 to 21-JUN-16 22:24:00 (CST-6)
Location: STANTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in MCLEAN, NORTH DAKOTA
From 21-JUN-16 22:00:00 to 21-JUN-16 22:02:00 (CST-6)
Location: GARRISON MUNI ARPT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 21-JUN-16 23:35:00 to 21-JUN-16 23:40:00 (CST-6)
Location: ALMONT
Magnitude: 65.00 EG
Property damage: 150.00K
Crop damage: 15.00K
Reported by: Public

Many trees were reported down in the town of Almont. Some trees fell onto cars and campers. Also, some buildings were struck by falling trees.

Thunderstorm Wind in BURLEIGH, NORTH DAKOTA
From 21-JUN-16 23:40:00 to 21-JUN-16 23:43:00 (CST-6)
Location: BISMARCK
Magnitude: 65.00 MG
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Public

Multiple trees were reported down in the Hoge Island area north of Bismarck with this storm. This caused substantial damage to many homes. Boat damage also occurred.

Thunderstorm Wind in BURLEIGH, NORTH DAKOTA
From 21-JUN-16 23:50:00 to 21-JUN-16 23:53:00 (CST-6)
Location: BISMARCK
Magnitude: 75.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

A camper was severely damaged by the strong wind gusts.

Thunderstorm Wind in BURLEIGH, NORTH DAKOTA
From 22-JUN-16 00:20:00 to 22-JUN-16 00:23:00 (CST-6)
Location: MOFFIT
Magnitude: 73.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in LOGAN, NORTH DAKOTA
From 22-JUN-16 00:55:00 to 22-JUN-16 01:00:00 (CST-6)
Location: NAPOLEON
Magnitude: 1.75 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: COOP Observer

Thunderstorm Wind in MCINTOSH, NORTH DAKOTA
From 22-JUN-16 00:58:00 to 22-JUN-16 01:01:00 (CST-6)
Location: WISHEK
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in LOGAN, NORTH DAKOTA
From 22-JUN-16 01:05:00 to 22-JUN-16 01:08:00 (CST-6)
Location: LEHR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in DICKEY, NORTH DAKOTA
From 22-JUN-16 01:57:00 to 22-JUN-16 02:00:00 (CST-6)
Location: ELLENDALE
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in MERCER, NORTH DAKOTA
From 21-JUN-16 20:10:00 to 21-JUN-16 20:14:00 (CST-6)
Location: BEULAH
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in DICKEY, NORTH DAKOTA
From 22-JUN-16 02:02:00 to 22-JUN-16 02:05:00 (CST-6)
Location: ELLENDALE
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Funnel Cloud in MCKENZIE, NORTH DAKOTA
From 21-JUN-16 20:00:00 to 21-JUN-16 20:02:00 (MST-7)
Location: RAWSON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Funnel Cloud in MCKENZIE, NORTH DAKOTA
From 21-JUN-16 19:22:00 to 21-JUN-16 19:25:00 (MST-7)
Location: JOHNSONS CORNER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Funnel Cloud in MCKENZIE, NORTH DAKOTA
From 21-JUN-16 20:12:00 to 21-JUN-16 20:14:00 (MST-7)
Location: WATFORD CITY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in MCKENZIE, NORTH DAKOTA
From 21-JUN-16 20:13:00 to 21-JUN-16 20:16:00 (MST-7)
Location: WATFORD CITY
Magnitude: 1.50 
Property damage: 150.00K
Crop damage: 20.00K
Reported by: Law Enforcement

Hail in HETTINGER, NORTH DAKOTA
From 21-JUN-16 18:15:00 to 21-JUN-16 18:18:00 (MST-7)
Location: NEW ENGLAND
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 50.00K
Reported by: Storm Chaser

Hail in HETTINGER, NORTH DAKOTA
From 21-JUN-16 18:38:00 to 21-JUN-16 18:44:00 (MST-7)
Location: REGENT
Magnitude: 2.50 
Property damage: 100.00K
Crop damage: 25.00K
Reported by: Fire Department/Rescue

Initial hail report was for ping pong ball sized hail, but hail increased to tennis ball sized hail in subsequent report.

Thunderstorm Wind in MCKENZIE, NORTH DAKOTA
From 21-JUN-16 19:06:00 to 21-JUN-16 19:09:00 (MST-7)
Location: KEENE
Magnitude: 70.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management estimated winds to be gusting around 80 mph.

Thunderstorm Wind in OLIVER, NORTH DAKOTA
From 21-JUN-16 23:25:00 to 21-JUN-16 23:28:00 (CST-6)
Location: PRICE
Magnitude: 65.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Some trees were reported down in the area.

Thunderstorm Wind in EMMONS, NORTH DAKOTA
From 22-JUN-16 00:25:00 to 22-JUN-16 00:29:00 (CST-6)
Location: HAZELTON ARPT
Magnitude: 83.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The strong wind gusts snapped tree tops and blew them 100 feet over a house and into the back yard. An eight foot by 14 foot greenhouse blew away. Wind gusts also blew over a portable creep feeder at the Hazelton elevator and broke its axle.

Thunderstorm Wind in LOGAN, NORTH DAKOTA
From 22-JUN-16 00:50:00 to 22-JUN-16 01:00:00 (CST-6)
Location: BURNSTAD
Magnitude: 87.00 EG
Property damage: 1.20M
Crop damage: 50.00K
Reported by: Public

Power lines were reported down south of Napoleon along North Dakota Highway 3. Also, a 70 foot tall electrical high-voltage structure toppled over. Significant farm damage occurred.

Flash Flood in HETTINGER, NORTH DAKOTA
From 21-JUN-16 19:18:00 to 21-JUN-16 20:45:00 (MST-7)
Location: REGENT
Flood cause: Heavy Rain
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Water was running three feet deep through some streets in the city of Regent. Ditches were also overflowing along the Enchanted Highway to the north of Regent with water running over the road. Reports were also received by the National Weather Service of three inches of rain falling in a short period of time.

Hail in BILLINGS, NORTH DAKOTA
From 21-JUN-16 16:41:00 to 21-JUN-16 16:43:00 (MST-7)
Location: MEDORA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SLOPE, NORTH DAKOTA
From 21-JUN-16 17:55:00 to 21-JUN-16 17:57:00 (MST-7)
Location: AMIDON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Tornado in HETTINGER, NORTH DAKOTA
From 21-JUN-16 19:10:00 to 21-JUN-16 19:20:00 (MST-7)
Location: MOTT MUNI ARPT
Tornado F-scale: EF1
Property damage: 200.00K
Crop damage: 30.00K
Reported by: NWS Storm Survey

A tornado moved from southwest of Mott towards the east-northeast for just over three miles. Initial damage was to large cottonwood trees at a farmstead, along with light damage to the home. About half-way through the tornado path, another home was severely damaged. The entire attached three stall garage was destroyed and half the roof was torn from the home. Windows were broken and vehicles were damaged. Debris was strewn through nearby fields for one mile. No injuries or fatalities occurred, as the occupants of both homes took shelter.

Tornado in MCKENZIE, NORTH DAKOTA
From 21-JUN-16 19:46:00 to 21-JUN-16 19:49:00 (MST-7)
Location: ARNEGARD
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tornado developed over rural areas between Arnegard and Watford City, and traveled east for almost one-half mile. No damage was reported as the tornado impacted no structures. Based on this, it is rated EF0.

Hail in BILLINGS, NORTH DAKOTA
From 21-JUN-16 17:25:00 to 21-JUN-16 17:35:00 (MST-7)
Location: SULLY SPGS
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ADAMS, NORTH DAKOTA
From 21-JUN-16 18:15:00 to 21-JUN-16 18:17:00 (MST-7)
Location: HETTINGER
Magnitude: 3.00 
Property damage: 15.00K
Crop damage: 20.00K
Reported by: Trained Spotter

Hail in HETTINGER, NORTH DAKOTA
From 21-JUN-16 18:18:00 to 21-JUN-16 18:20:00 (MST-7)
Location: NEW ENGLAND
Magnitude: 2.75 
Property damage: 20.00K
Crop damage: 15.00K
Reported by: COOP Observer

Hail in HETTINGER, NORTH DAKOTA
From 21-JUN-16 18:40:00 to 21-JUN-16 18:43:00 (MST-7)
Location: REGENT
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 20.00K
Reported by: Storm Chaser

Hail in DUNN, NORTH DAKOTA
From 21-JUN-16 18:30:00 to 21-JUN-16 18:33:00 (MST-7)
Location: DODGE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MCKENZIE, NORTH DAKOTA
From 21-JUN-16 18:40:00 to 21-JUN-16 18:43:00 (MST-7)
Location: WATFORD CITY
Magnitude: 2.75 
Property damage: 15.00K
Crop damage: 20.00K
Reported by: Public