The severe weather outbreak on Wednesday, June 17th, had a similar set up to the ones from June 7th and 8th. By the mid afternoon of June 17th, a stationary boundary was located over the central Dakotas, with eastern North Dakota and the adjacent area of the northwest quarter of Minnesota in the warm sector. Temperatures in the warm sector peaked in the upper 80s to middle 90s, with dew points in the 60s to around 70 degrees. The 500mb pattern featured ridging over the Great Lakes, with southwest flow over eastern North Dakota and northwest Minnesota. A lone thunderstorm initially formed over western Marshall County (Minnesota), and tracked northeast, passing west of Roseau. By that time, additional storms had formed between Jamestown and Grand Forks. This line of storms then tracked to the northeast, passing through the central and northern Red River Valley and Lake of the Woods region.

Thunderstorm Wind in ROSEAU, MINNESOTA
From 17-JUN-20 19:53:00 to 17-JUN-20 20:00:00 (CST-6)
Location: BADGER
Magnitude: 78.00 EG
Property damage: 100.00K
Crop damage: 3.00K
Reported by: NWS Storm Survey

Downburst winds blew across northern Barto, Eastern Soleer, and Mosse townships, snapping numerous trees in shelterbelts and farmsteads throughout the area. A steel clad pole shed was torn open and spread along a half mile path to the east, where a two stall shop was torn open.

Tornado in ROSEAU, MINNESOTA
From 17-JUN-20 16:33:00 to 17-JUN-20 16:37:00 (CST-6)
Location: GREENBUSH ARPT
Tornado F-scale: EF1
Property damage: 5.00K
Reported by: NWS Storm Survey

A tornado tracked intermittently for about 2 miles. Several trees were snapped and numerous branches were broken down in shelterbelts and groves. Video and eyewitness reports described the tornado as being cut off by rear flank winds and rain as it tracked toward Greenbush. Peak winds were estimated at 95 mph.

Tornado in MARSHALL, MINNESOTA
From 17-JUN-20 19:49:00 to 17-JUN-20 19:56:00 (CST-6)
Location: FLORIAN
Tornado F-scale: EF1
Property damage: 5.00K
Reported by: NWS Storm Survey

This tornado snarled and snapped trees in multiple shelterbelts along its path. Peak winds were estimated at 105 mph.

Tornado in ROSEAU, MINNESOTA
From 17-JUN-20 20:10:00 to 17-JUN-20 20:12:00 (CST-6)
Location: PINECREEK ARPT
Tornado F-scale: EF1
Property damage: 150.00K
Crop damage: 5.00K
Reported by: NWS Storm Survey

A tornado was observed as it developed off the north end of a downburst corridor moving across Dieter and Ross townships. The tornado tracked through a farmstead, where it demolished a pole shed and spread debris for nearly a mile to the north. Numerous trees were also snapped. Peak winds were estimated at 105 mph.

Thunderstorm Wind in KITTSON, MINNESOTA
From 17-JUN-20 16:05:00 to 17-JUN-20 16:05:00 (CST-6)
Location: KARLSTAD
Magnitude: 56.00 EG
Reported by: NWS Storm Survey

Numerous trees were snapped in shelterbelts and groves.

Funnel Cloud in ROSEAU, MINNESOTA
From 17-JUN-20 16:31:00 to 17-JUN-20 16:31:00 (CST-6)
Location: GREENBUSH ARPT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ROSEAU, MINNESOTA
From 17-JUN-20 16:35:00 to 17-JUN-20 16:35:00 (CST-6)
Location: PELAN
Magnitude: 1.00 
Reported by: Public

Thunderstorm Wind in ROSEAU, MINNESOTA
From 17-JUN-20 16:44:00 to 17-JUN-20 16:44:00 (CST-6)
Location: GREENBUSH
Magnitude: 61.00 EG
Reported by: Public

Numerous tree branches were blown down across town. A few pine, poplar, and oak trees were also snapped.

Thunderstorm Wind in KITTSON, MINNESOTA
From 17-JUN-20 18:29:00 to 17-JUN-20 18:29:00 (CST-6)
Location: MATTSON
Magnitude: 50.00 MG
Reported by: Mesonet

The wind gust was measured by a NDAWN mesonet sensor.

Thunderstorm Wind in KITTSON, MINNESOTA
From 17-JUN-20 18:41:00 to 17-JUN-20 18:41:00 (CST-6)
Location: MATTSON
Magnitude: 61.00 EG
Reported by: Trained Spotter

Multiple trees were uprooted.

Thunderstorm Wind in KITTSON, MINNESOTA
From 17-JUN-20 19:20:00 to 17-JUN-20 19:20:00 (CST-6)
Location: DONALDSON
Magnitude: 59.00 MG
Reported by: Mesonet

The wind gust was measured by a RWIS mesonet sensor.

Thunderstorm Wind in KITTSON, MINNESOTA
From 17-JUN-20 19:24:00 to 17-JUN-20 19:24:00 (CST-6)
Location: DONALDSON
Magnitude: 70.00 EG
Reported by: NWS Storm Survey

A 15,000 bushel steel grain bin was caved in and popped off its foundation, with its roof torn off and thrown downwind over a hundred yards.

Funnel Cloud in POLK, MINNESOTA
From 17-JUN-20 19:33:00 to 17-JUN-20 19:33:00 (CST-6)
Location: ELDRED
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Tornado in MARSHALL, MINNESOTA
From 17-JUN-20 19:42:00 to 17-JUN-20 19:44:00 (CST-6)
Location: LUNA
Tornado F-scale: EF0
Reported by: NWS Storm Survey

A tornado touched down and tracked for less than a mile, snapping trees in a shelterbelt and at a homestead. Peak winds were estimated at 85 mph.

Thunderstorm Wind in ROSEAU, MINNESOTA
From 17-JUN-20 19:44:00 to 17-JUN-20 19:44:00 (CST-6)
Location: PELAN
Magnitude: 52.00 MG
Reported by: Mesonet

The wind gust was measured by a NDAWN mesonet sensor.

Thunderstorm Wind in POLK, MINNESOTA
From 17-JUN-20 19:46:00 to 17-JUN-20 19:51:00 (CST-6)
Location: MALLORY
Magnitude: 52.00 MG
Reported by: Mesonet

The wind gust was measured by a RWIS mesonet sensor.

Thunderstorm Wind in POLK, MINNESOTA
From 17-JUN-20 19:55:00 to 17-JUN-20 19:55:00 (CST-6)
Location: ANGLIM
Magnitude: 54.00 MG
Reported by: AWOS

The wind gust was measured at the Crookston airport.

Thunderstorm Wind in ROSEAU, MINNESOTA
From 17-JUN-20 20:00:00 to 17-JUN-20 20:00:00 (CST-6)
Location: DUXBY
Magnitude: 56.00 EG
Reported by: NWS Storm Survey

Numerous trees were blown down across southern Pohlitz Township. Shingles were also torn off a well house.

Thunderstorm Wind in ROSEAU, MINNESOTA
From 17-JUN-20 20:03:00 to 17-JUN-20 20:03:00 (CST-6)
Location: FOX
Magnitude: 57.00 MG
Reported by: Mesonet

The wind gust was measured by a NDAWN mesonet sensor.

Thunderstorm Wind in KITTSON, MINNESOTA
From 17-JUN-20 20:06:00 to 17-JUN-20 20:09:00 (CST-6)
Location: KARLSTAD
Magnitude: 56.00 MG
Reported by: Mesonet

The wind gust was measured at the Kittson RAWS station. Numerous tree branches were broken down in and around Karlstad.

Thunderstorm Wind in MARSHALL, MINNESOTA
From 17-JUN-20 20:25:00 to 17-JUN-20 20:25:00 (CST-6)
Location: MARCH
Magnitude: 56.00 EG
Reported by: NWS Storm Survey

A few large trees were blown down in shelterbelts from 2 to 4 miles east of Alvarado.

Thunderstorm Wind in ROSEAU, MINNESOTA
From 17-JUN-20 20:35:00 to 17-JUN-20 20:35:00 (CST-6)
Location: GREENBUSH
Magnitude: 61.00 EG
Reported by: Trained Spotter

Considerable tree damage was reported in town.

Thunderstorm Wind in ROSEAU, MINNESOTA
From 17-JUN-20 21:00:00 to 17-JUN-20 21:00:00 (CST-6)
Location: (D45)CARLSON FLD WAR
Magnitude: 52.00 EG
Reported by: COOP Observer

A few tree tops and branches were snapped off by the strong wind gusts.

Hail in ROSEAU, MINNESOTA
From 17-JUN-20 21:55:00 to 17-JUN-20 21:55:00 (CST-6)
Location: PELAN
Magnitude: 1.00 
Reported by: Public

This was the third round of hail for the evening.