For this event, the 500mb pattern featured ridging over eastern Minnesota and Wisconsin, with south-southwest flow over eastern North Dakota and the northwest quarter of Minnesota. At the surface, by the early afternoon of June 8th, a cold front had set up along a line from Cavalier to Oakes, North Dakota, with the Red River Valley into adjacent areas of the northwest quarter of Minnesota in the warm sector. In this warm sector, temperatures ranged in the 80s with dew points around 70. By the mid afternoon, thunderstorms initially formed along the boundary over northeast North Dakota and tracked into the far northwest corner of Minnesota. By late afternoon, additional storms formed around Cooperstown, North Dakota, and also tracked northeast into the far northwest corner of Minnesota. Kittson County, Minnesota, received several rounds of heavy rainfall. By mid evening, most storms tracked between Thief River Falls and Lake of the Woods. Finally, more storms formed and tracked across portions of west central Minnesota during the early morning hours of June 9th.

Tornado in STEELE, NORTH DAKOTA
From 08-JUN-20 15:30:00 to 08-JUN-20 15:33:00 (CST-6)
Location: SHARON
Tornado F-scale: EF1
Property damage: 10.00K
Reported by: NWS Storm Survey

This tornado tracked intermittently to the north-northeast for over 7 miles, roughly 2 miles of the track in Steele County, then the remainder of the 5 miles in Grand Forks County (where it ended around 442 pm CDT). The tornado blew out the back wall of a pole shed and tore off some of its steel sheathing. It also snapped or uprooted several cottonwood and pine trees in shelterbelts along its path. Peak winds were estimated at 95 mph.

Tornado in GRAND FORKS, NORTH DAKOTA
From 08-JUN-20 15:33:00 to 08-JUN-20 15:42:00 (CST-6)
Location: LOGAN CENTER
Tornado F-scale: EF1
Property damage: 25.00K
Reported by: NWS Storm Survey

This tornado began 4 miles north of Sharon, in Steele County, at 430 pm CDT. The tornado tracked for about 2 miles in Steele County, before it crossed into Grand Forks County, where the path continued for another 5 miles. The tornado blew out the back wall of a pole shed and also tore off some of its steel sheathing. It snapped or uprooted several cottonwood and pine trees in shelterbelts along its path. Peak winds were estimated at 95 mph.

Tornado in GRAND FORKS, NORTH DAKOTA
From 08-JUN-20 16:09:00 to 08-JUN-20 16:15:00 (CST-6)
Location: ARVILLA
Tornado F-scale: EF0
Property damage: 5.00K
Crop damage: 2.00K
Reported by: NWS Storm Survey

This tornado tracked intermittently to the north-northeast for about 3 miles. It snapped a number of poplar or cottonwood trees in the few shelterbelts along its path. Peak winds were estimated at 80 mph.

Hail in WALSH, NORTH DAKOTA
From 08-JUN-20 14:02:00 to 08-JUN-20 14:02:00 (CST-6)
Location: GRAFTON ARPT
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in WALSH, NORTH DAKOTA
From 08-JUN-20 14:30:00 to 08-JUN-20 14:30:00 (CST-6)
Location: KERRY
Magnitude: 1.00 
Reported by: COOP Observer

Tornado in STEELE, NORTH DAKOTA
From 08-JUN-20 15:17:00 to 08-JUN-20 15:17:00 (CST-6)
Location: SHARON
Tornado F-scale: EF0
Reported by: Social Media

A video of a brief tornado touchdown was posted on social media. The touchdown occurred in an open field and no damage was noted. Peak winds were estimated at 70 mph.

Funnel Cloud in GRAND FORKS, NORTH DAKOTA
From 08-JUN-20 15:30:00 to 08-JUN-20 15:30:00 (CST-6)
Location: LOGAN CENTER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

This funnel cloud was viewed by a spotter west of Hatton.

Thunderstorm Wind in GRAND FORKS, NORTH DAKOTA
From 08-JUN-20 16:13:00 to 08-JUN-20 16:13:00 (CST-6)
Location: ARVILLA
Magnitude: 52.00 EG
Reported by: Broadcast Media

Strong winds hit the area northeast of Arvilla.

Hail in GRAND FORKS, NORTH DAKOTA
From 08-JUN-20 16:15:00 to 08-JUN-20 16:15:00 (CST-6)
Location: ARVILLA
Magnitude: 1.25 
Reported by: Amateur Radio

Hail in GRAND FORKS, NORTH DAKOTA
From 08-JUN-20 16:24:00 to 08-JUN-20 16:24:00 (CST-6)
Location: ARVILLA
Magnitude: 1.75 
Reported by: Public

Hail in GRAND FORKS, NORTH DAKOTA
From 08-JUN-20 16:45:00 to 08-JUN-20 16:45:00 (CST-6)
Location: MANVEL
Magnitude: 1.00 
Reported by: Public

Dime to quarter sized hail fell with 60 mph wind gusts.

Thunderstorm Wind in RICHLAND, NORTH DAKOTA
From 09-JUN-20 00:52:00 to 09-JUN-20 00:52:00 (CST-6)
Location: MOORETON
Magnitude: 56.00 EG
Reported by: Mesonet

The wind gust was measured by a NDAWN mesonet sensor.

Thunderstorm Wind in RICHLAND, NORTH DAKOTA
From 09-JUN-20 01:08:00 to 09-JUN-20 01:08:00 (CST-6)
Location: WAHPETON
Magnitude: 52.00 EG
Reported by: Social Media

A large tree limb was blown down on a house and fence.

Hail in GRAND FORKS, NORTH DAKOTA
From 08-JUN-20 16:13:00 to 08-JUN-20 16:13:00 (CST-6)
Location: ARVILLA
Magnitude: 1.00 
Reported by: Broadcast Media