During the afternoon of Tuesday, July 21st, a few thunderstorms developed along a frontal boundary over east-central Minnesota. Several spotters and storm chasers were following these storms as the storms moved into Wisconsin.
The storm that moved into Polk County had a consistent funnel cloud associated with it with a brief tornado touchdown near Clear Lake and then again near Arland. Another storm developed across northern Dunn County and produced an EF0 tornado northeast of Wheeler. More storms developed over southeast Dunn and central Chippewa Counties to produce the majority of the damage.
The worst damage occurred in the city of Cadott where numerous trees, power lines and a few structures were damaged as it moved through the town before dissipating.
The two tornadoes in Chippewa County had an average path length of 3 to 4 miles and an average width of 75 yards.

Tornado in DUNN, WISCONSIN
From 21-JUL-20 17:40:00 to 21-JUL-20 17:41:00 (CST-6)
Location: WHEELER
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A storm chaser took video and pictures of the tornado, which lofted tree debris along a short path.

Tornado in CHIPPEWA, WISCONSIN
From 21-JUL-20 19:44:00 to 21-JUL-20 19:53:00 (CST-6)
Location: CADOTT
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Numerous trees were down, with some on houses and vehicles. Part of a roof was taken off a church. Other minor roof damage was noted on homes. A shed slid off its foundation.

Tornado in POLK, WISCONSIN
From 21-JUL-20 16:22:00 to 21-JUL-20 16:23:00 (CST-6)
Location: CLAYTON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A storm chaser took video of a brief tornado. It knocked down large branches.

Tornado in BARRON, WISCONSIN
From 21-JUL-20 16:50:00 to 21-JUL-20 16:56:00 (CST-6)
Location: ARLAND
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Large branches down. A storm chaser took video and was also reported by fire department officials. The tornado moved across open fields and wooded areas, knocking down large branches. It was not in continuous contact with the ground, but instead made contact several times during the course of its existence.

Tornado in CHIPPEWA, WISCONSIN
From 21-JUL-20 19:12:00 to 21-JUL-20 19:29:00 (CST-6)
Location: ALBERTVILLE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Several storm chasers and trained spotters observed a tornado that tracked just north of Highway 29, west of Chippewa Falls. The tornado moved across open fields and wooded areas, knocking down or lofting large branches and corn stalks. The tornado was not in continuous contact with the ground, but instead made contact several times during the course of its lifetime.

Funnel Cloud in BARRON, WISCONSIN
From 21-JUL-20 17:37:00 to 21-JUL-20 17:37:00 (CST-6)
Location: BARRON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Video and photos of the funnel south of Barron were provided by two storm chasers.

Funnel Cloud in POLK, WISCONSIN
From 21-JUL-20 16:37:00 to 21-JUL-20 16:38:00 (CST-6)
Location: CLAYTON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A storm chaser took video of a funnel cloud. It is possible it may have been on the ground, but the video was inconclusive.

Funnel Cloud in POLK, WISCONSIN
From 21-JUL-20 15:20:00 to 21-JUL-20 15:20:00 (CST-6)
Location: UBET
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A brief funnel cloud was observed around Bear Lake in western Polk County. Video was inconclusive as to whether there was any ground circulation.