Thunderstorms formed over eastern North Dakota during the mid afternoon of June 8th and spread eastward into the Red River Valley by the mid to late afternoon and early evening. These storms produced a few weak tornadoes and strong wind gusts. Just north of Reynolds, two semi trucks were blown over, which garnered a lot of media interest.

Hail in BARNES, NORTH DAKOTA
From 08-JUN-18 14:35:00 to 08-JUN-18 14:35:00 (CST-6)
Location: KOLDOK
Magnitude: 1.00 
Reported by: Public

Very heavy rain accompanied the storm. Some smaller branches were also blown down.

Hail in CASS, NORTH DAKOTA
From 08-JUN-18 14:49:00 to 08-JUN-18 14:49:00 (CST-6)
Location: TOWER CITY
Magnitude: 1.75 
Reported by: Public

The wind driven hail stripped fields and gardens.

Tornado in CASS, NORTH DAKOTA
From 08-JUN-18 15:00:00 to 08-JUN-18 15:04:00 (CST-6)
Location: BUFFALO
Tornado F-scale: EF0
Reported by: Trained Spotter

This tornado tracked across central Hill Township, mainly over open fields. It kicked up a considerable amount of dust across the southern flank of the storm, as indicated by spotter videos. Some large branches were broken down in shelterbelts. Peak winds were estimated at 80 mph.

Thunderstorm Wind in TRAILL, NORTH DAKOTA
From 08-JUN-18 15:02:00 to 08-JUN-18 15:02:00 (CST-6)
Location: HATTON ARPT
Magnitude: 50.00 EG
Reported by: NWS Storm Survey

Several large branches were blown down in shelterbelts across northern Morgan Township.

Thunderstorm Wind in GRAND FORKS, NORTH DAKOTA
From 08-JUN-18 15:06:00 to 08-JUN-18 15:06:00 (CST-6)
Location: HOLMES
Magnitude: 78.00 EG
Reported by: Public

This damage was apparently caused by thunderstorm downburst winds. A large south facing shed door was blown in and over a third of the roofing was pealed off of a large 40x140 foot pole shed. Large tree branches were blown down, a small camper was flipped over, and a nearby small shed was blown down. Shop roofing was blown up to 300 yards to the northeast. Additional branch damage was noted across southern Union Township.

Thunderstorm Wind in CASS, NORTH DAKOTA
From 08-JUN-18 15:08:00 to 08-JUN-18 15:08:00 (CST-6)
Location: BUFFALO
Magnitude: 55.00 EG
Reported by: Public

Six to ten inch diameter trees were blown down in Buffalo.

Tornado in NELSON, NORTH DAKOTA
From 08-JUN-18 15:12:00 to 08-JUN-18 15:13:00 (CST-6)
Location: MICHIGAN CITY
Tornado F-scale: EF0
Reported by: Trained Spotter

A brief tornado touchdown was noted over an open field. No damage was noted, although a significant amount of dust was lifted up. Peak winds were estimated at 75 mph.

Thunderstorm Wind in GRAND FORKS, NORTH DAKOTA
From 08-JUN-18 15:31:00 to 08-JUN-18 15:31:00 (CST-6)
Location: REYNOLDS
Magnitude: 83.00 EG
Reported by: State Official

Five power poles were snapped and three were left leaning along a half mile stretch of highway 81. Nearby farmsteads had a few snapped or uprooted trees.

Thunderstorm Wind in CASS, NORTH DAKOTA
From 08-JUN-18 15:32:00 to 08-JUN-18 15:32:00 (CST-6)
Location: MYRA
Magnitude: 65.00 EG
Reported by: Public

Very strong winds tore steel roofing off of a barn and blew out a window.

Tornado in CASS, NORTH DAKOTA
From 08-JUN-18 15:47:00 to 08-JUN-18 15:47:00 (CST-6)
Location: CHAFFEE
Tornado F-scale: EF0
Reported by: Storm Chaser

There was a lot of rotation with this storm, it sent out funnel clouds every few minutes. A couple of brief touchdowns were evident in video over an open field. Peak winds were estimated at 70 mph.

Tornado in NELSON, NORTH DAKOTA
From 08-JUN-18 15:54:00 to 08-JUN-18 16:06:00 (CST-6)
Location: PETERSBURG
Tornado F-scale: EF1
Reported by: NWS Storm Survey

A few snapped or uprooted poplar trees were noted in a shelterbelt north of U. S. Highway 2, west of mile point 239. Large branches were also broken down in various shelterbelts west of Niagara. Peak winds were estimated at 90 mph.

Hail in CASS, NORTH DAKOTA
From 08-JUN-18 15:57:00 to 08-JUN-18 15:57:00 (CST-6)
Location: LYNCHBURG
Magnitude: 1.25 
Reported by: Public

Very strong winds and wind driven hail stripped corn and bean fields across central Maple River Township, near Lynchburg.

Thunderstorm Wind in CASS, NORTH DAKOTA
From 08-JUN-18 16:04:00 to 08-JUN-18 16:04:00 (CST-6)
Location: LEONARD
Magnitude: 52.00 EG
Reported by: Trained Spotter

The winds gusted up to 60 mph.

Tornado in GRAND FORKS, NORTH DAKOTA
From 08-JUN-18 16:12:00 to 08-JUN-18 16:14:00 (CST-6)
Location: (RDR)GRAND FORKS AFB
Tornado F-scale: EF0
Reported by: State Official

This tornado tracked just south of highway 2. No damage was reported. Peak winds were estimated at 75 mph.

Hail in CASS, NORTH DAKOTA
From 08-JUN-18 16:14:00 to 08-JUN-18 16:14:00 (CST-6)
Location: KINDRED
Magnitude: 1.75 
Reported by: Social Media

Tornado in CASS, NORTH DAKOTA
From 08-JUN-18 16:21:00 to 08-JUN-18 16:21:00 (CST-6)
Location: WOODS
Tornado F-scale: EF0
Reported by: Public

A brief touchdown was reported with no damage.

Funnel Cloud in GRAND FORKS, NORTH DAKOTA
From 08-JUN-18 16:27:00 to 08-JUN-18 16:27:00 (CST-6)
Location: OJATA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several storm spotters noted a persistent and well developed wall cloud structure tracking eastward along the highway 2 corridor. A brief but diffuse funnel was evident at times.

Tornado in GRAND FORKS, NORTH DAKOTA
From 08-JUN-18 16:30:00 to 08-JUN-18 16:34:00 (CST-6)
Location: OJATA
Tornado F-scale: EF0
Reported by: NWS Storm Survey

A tornado tracked eastward from the far northeast edge of Oakville Township into far northwest Brenna Township, with brief and intermittent touchdowns along a roughly mile long path. At least one poplar tree was snapped in a shelterbelt along with several small willow bushes in a nearby farmstead. Peak winds were estimated at 80 mph.

Funnel Cloud in BARNES, NORTH DAKOTA
From 08-JUN-18 14:07:00 to 08-JUN-18 14:10:00 (CST-6)
Location: NORTH VLY CITY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Thunderstorm Wind in GRAND FORKS, NORTH DAKOTA
From 08-JUN-18 15:29:00 to 08-JUN-18 15:31:00 (CST-6)
Location: REYNOLDS
Magnitude: 78.00 EG
Reported by: Broadcast Media

Two tractor trailer rigs were flipped to the east, on their sides, along the southbound lanes of Interstate 29, due to downburst winds. This shut down the southbound lane of the interstate, backing up traffic for miles.

Hail in CASS, NORTH DAKOTA
From 08-JUN-18 16:50:00 to 08-JUN-18 16:50:00 (CST-6)
Location: KINDRED
Magnitude: 2.00 
Reported by: Social Media

Hail in RICHLAND, NORTH DAKOTA
From 08-JUN-18 17:00:00 to 08-JUN-18 17:00:00 (CST-6)
Location: WALCOTT
Magnitude: 1.50 
Reported by: Trained Spotter

Very heavy rain and a few large hailstones fell.

Thunderstorm Wind in RICHLAND, NORTH DAKOTA
From 08-JUN-18 17:05:00 to 08-JUN-18 17:05:00 (CST-6)
Location: WALCOTT
Magnitude: 50.00 EG
Reported by: Trained Spotter

Numerous large tree branches were blown down around town.

Hail in RICHLAND, NORTH DAKOTA
From 08-JUN-18 17:17:00 to 08-JUN-18 17:17:00 (CST-6)
Location: CHRISTINE
Magnitude: 1.25 
Reported by: Storm Chaser

The hail was mostly quarter size.

Funnel Cloud in RICHLAND, NORTH DAKOTA
From 08-JUN-18 17:42:00 to 08-JUN-18 17:42:00 (CST-6)
Location: COLFAX
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in BARNES, NORTH DAKOTA
From 08-JUN-18 14:19:00 to 08-JUN-18 14:19:00 (CST-6)
Location: PEAK
Magnitude: 52.00 EG
Reported by: Trained Spotter

A considerable amount of dust was kicked up by a thunderstorm in northwest Alta Township.