The afternoon of Thursday, August 6th, severe thunderstorms began to develop across northeast South Dakota and move east into west central Minnesota. Two thunderstorms, one near Elbow Lake, and another near Benson, moved eastward and caused damage near Evansville, and a brief tornado touchdown west of Sunburg. The Evansville storm weakened as it moved eastward into Todd County. The storm west of Sunburg, moved slowly eastward and produced several brief tornado touchdowns, mainly in open fields. However, the town of Hawick had some minor damage associated with the brief tornado that touchdown. Other storms produced damage near Canby as they moved from eastern South Dakota, into west central Minnesota.

Tornado in SWIFT, MINNESOTA
From 06-AUG-15 15:05:00 to 06-AUG-15 15:06:00 (CST-6)
Location: SWIFT FALLS
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

The tornado briefly touched down in a corn field and was caught on video by multiple storm chasers.  It was also witnessed by fire department personnel.

Tornado in KANDIYOHI, MINNESOTA
From 06-AUG-15 15:59:00 to 06-AUG-15 16:00:00 (CST-6)
Location: NEW LONDON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

There was a brief touchdown just north of Norway Lake. It was mostly over an open field, but it did hit a couple trees. The tornado was filmed by multiple storm chasers and witnessed by fire department personnel.

Tornado in SWIFT, MINNESOTA
From 06-AUG-15 15:09:00 to 06-AUG-15 15:10:00 (CST-6)
Location: SWIFT FALLS
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

The tornado briefly touched down in a corn field and was caught on video by multiple storm chasers.

Tornado in KANDIYOHI, MINNESOTA
From 06-AUG-15 17:07:00 to 06-AUG-15 17:10:00 (CST-6)
Location: HAWICK
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A tornado touched down and grazed the southern edge of the community of Hawick.  It ripped up and tossed a few trees and partially removed metal from the roofs of storage sheds or other outbuildings.  It was filmed by multiple storm chasers.

Tornado in KANDIYOHI, MINNESOTA
From 06-AUG-15 16:03:00 to 06-AUG-15 16:04:00 (CST-6)
Location: NEW LONDON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

There was a brief touchdown just north of Games Lake. It was over an open field, and was filmed by multiple storm chasers.

Hail in SWIFT, MINNESOTA
From 06-AUG-15 15:04:00 to 06-AUG-15 15:04:00 (CST-6)
Location: SWIFT FALLS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in KANDIYOHI, MINNESOTA
From 06-AUG-15 15:20:00 to 06-AUG-15 15:20:00 (CST-6)
Location: NEW LONDON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in KANDIYOHI, MINNESOTA
From 06-AUG-15 15:55:00 to 06-AUG-15 15:55:00 (CST-6)
Location: NEW LONDON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BLUE EARTH, MINNESOTA
From 06-AUG-15 19:35:00 to 06-AUG-15 19:35:00 (CST-6)
Location: MANKATO
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BLUE EARTH, MINNESOTA
From 06-AUG-15 19:25:00 to 06-AUG-15 19:25:00 (CST-6)
Location: MANKATO
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The hail was photographed.

Thunderstorm Wind in DOUGLAS, MINNESOTA
From 06-AUG-15 13:45:00 to 06-AUG-15 13:45:00 (CST-6)
Location: MELBY
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees and a grain bin were blown over.

Thunderstorm Wind in REDWOOD, MINNESOTA
From 06-AUG-15 17:10:00 to 06-AUG-15 17:10:00 (CST-6)
Location: VESTA
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: COOP Observer

Several power poles were toppled in the city of Vesta.

Hail in BLUE EARTH, MINNESOTA
From 06-AUG-15 19:20:00 to 06-AUG-15 19:20:00 (CST-6)
Location: MANKATO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Funnel Cloud in KANDIYOHI, MINNESOTA
From 06-AUG-15 16:45:00 to 06-AUG-15 16:45:00 (CST-6)
Location: NEW LONDON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Several funnel clouds were reported north of New London.

Tornado in YELLOW MEDICINE, MINNESOTA
From 06-AUG-15 16:21:00 to 06-AUG-15 16:24:00 (CST-6)
Location: CANBY
Tornado F-scale: EF1
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tornado moved across several farmsteads, destroying several outbuildings, uprooting or breaking hundreds of trees, and damaging crops.  About seven hay bales (each with a diameter of six feet) were blown apart for about 1/4 mile downwind. The damage pattern suggested this was a multiple vortex tornado.  The tornado was accompanied by a damaging rear flank downdraft just to the south of the tornado.

Thunderstorm Wind in YELLOW MEDICINE, MINNESOTA
From 06-AUG-15 16:20:00 to 06-AUG-15 16:35:00 (CST-6)
Location: CANBY
Magnitude: 65.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Strong rear flank downdraft winds accompanied a tornado.  The winds tipped over two silos that landed on top of a barn about 4 miles south of Canby. The winds also toppled dozens of trees. Even after the tornado dissipated, strong winds continued eastward into the city of Porter, with occasional tree and crop damage along the way.