By mid to late afternoon of August 3rd, a cold front had moved into central North Dakota. Ahead of the cold front, a warm front extended out to the east, or along the Canadian border. This put all of eastern North Dakota and the northwest quarter of Minnesota in the warm sector, where afternoon highs reached into the 80s to around 90, with dew point readings well into the 60s. A ribbon of extreme instability pooled from north to south just ahead of the cold front, with a lot of low level twisting evident in the wind field. Thunderstorms flared up in a northeast to southwest line around Rugby, North Dakota, then slowly tracked eastward during the evening. Some of the initial thunderstorms resulted in tornadoes in the Bisbee, North Dakota, area, as well as very large hail. In addition, these storms dropped large amounts of rain in the Bisbee area. As these initial storms moved east, they gradually weakened and became more disorganized. Meanwhile, storms along the southern edge of the line strengthened, gradually affecting the Devils Lake, North Dakota, area. Once again, several tornadoes were reported, with large hail as well. By late evening into the early morning hours of August 4th, the line over Devils Lake joined a line that blew up southwest of Jamestown, North Dakota, to form a continuous line of storms. This line of storms continued to move east, pushing through the central and southern Red River Valley, and into portions of west central Minnesota. By the time it reached west central Minnesota, the storms mainly produced damaging wind gusts.

Thunderstorm Wind in WADENA, MINNESOTA
From 04-AUG-16 01:26:00 to 04-AUG-16 01:26:00 (CST-6)
Location: MENAHGA
Magnitude: 87.00 EG
Reported by: Trained Spotter

Trees were blown down or uprooted and streets were blocked by downed trees and power lines. A metal roof was blown off a building.

Thunderstorm Wind in HUBBARD, MINNESOTA
From 04-AUG-16 01:30:00 to 04-AUG-16 01:30:00 (CST-6)
Location: HUBBARD
Magnitude: 87.00 EG
Reported by: NWS Storm Survey

Numerous large trees were blown down or uprooted around Duck Lake, some trees blocked roads.

Flash Flood in POLK, MINNESOTA
From 03-AUG-16 22:45:00 to 04-AUG-16 00:15:00 (CST-6)
Location: EAST GRAND FORKS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Fields and farm access roads were flooded near county road 17 and highway 2.

Thunderstorm Wind in CLAY, MINNESOTA
From 03-AUG-16 23:30:00 to 03-AUG-16 23:30:00 (CST-6)
Location: MOORHEAD
Magnitude: 52.00 EG
Reported by: Broadcast Media

Widespread power outages were reported from north Fargo into Moorhead.

Hail in CLAY, MINNESOTA
From 03-AUG-16 23:35:00 to 03-AUG-16 23:35:00 (CST-6)
Location: DILWORTH
Magnitude: 1.00 
Reported by: Trained Spotter

Very heavy rain was reported along with a few large hailstones.

Thunderstorm Wind in WADENA, MINNESOTA
From 04-AUG-16 01:36:00 to 04-AUG-16 01:36:00 (CST-6)
Location: HUNTERSVILLE
Magnitude: 83.00 EG
Reported by: NWS Storm Survey

Numerous large trees were snapped or uprooted around the Huntersville State Forest and throughout Shell River and Huntersville townships.

Thunderstorm Wind in BECKER, MINNESOTA
From 04-AUG-16 00:35:00 to 04-AUG-16 00:35:00 (CST-6)
Location: WHITE EARTH
Magnitude: 70.00 EG
Reported by: Public

The roof was torn off a home on Fishhook Lake.

Thunderstorm Wind in BECKER, MINNESOTA
From 04-AUG-16 00:45:00 to 04-AUG-16 00:45:00 (CST-6)
Location: ROCHERT
Magnitude: 74.00 EG
Reported by: Public

Wind damage occurred along highway 113 between Richwood and Detroit Lakes. Two semi trucks were overturned along with damage to grain bins.

Thunderstorm Wind in BECKER, MINNESOTA
From 04-AUG-16 01:00:00 to 04-AUG-16 01:00:00 (CST-6)
Location: WOLF LAKE
Magnitude: 74.00 EG
Reported by: Public

Numerous large trees were blown down or uprooted around Wolf Lake, extending eastward from Wolf Lake and Spruce Grove townships into Runeberg and Green Valley townships. In Green Valley Township, round hay bales were rolled across fields, trees were blown down onto roofs, and a couple of small sheds were blown down.

Thunderstorm Wind in HUBBARD, MINNESOTA
From 04-AUG-16 01:11:00 to 04-AUG-16 01:11:00 (CST-6)
Location: PARK RAPIDS
Magnitude: 50.00 MG
Reported by: ASOS

The wind gust was measured at the Park Rapids airport.