An area of low pressure lifted a warm front into the Northland during the day on the 26th. Behind this warm front was a moist and unstable airmass and daytime heating led to the development of strong to severe storms over northern Minnesota that moved to the southeast during the evening hours. While Northwest Wisconsin didn't see much from the first round of storms, later storms overnight produced hail up to 3 in diameter and damage to trees as they moved across the region. The KDLH radar was inoperable for this event but a high level of service was maintained by utilizing the KMPX, KMQT, KGRB and KARX radars and one minute GOES-16 satellite data.

Hail in DOUGLAS, WISCONSIN
From 26-JUL-21 22:30:00 to 26-JUL-21 22:32:00 (CST-6)
Location: BRULE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DOUGLAS, WISCONSIN
From 26-JUL-21 22:38:00 to 26-JUL-21 22:40:00 (CST-6)
Location: MAPLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in SAWYER, WISCONSIN
From 27-JUL-21 00:40:00 to 27-JUL-21 00:42:00 (CST-6)
Location: RADISSON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple pine trees were uprooted near Radisson by the storm.

Thunderstorm Wind in DOUGLAS, WISCONSIN
From 26-JUL-21 19:11:00 to 26-JUL-21 19:11:00 (CST-6)
Location: SUPERIOR
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A gust of 62 mph was recorded by the MnDOT RWIS station MN081 just south of the main span of the Blatnik Bridge over the St. Louis River.

Thunderstorm Wind in DOUGLAS, WISCONSIN
From 26-JUL-21 19:26:00 to 26-JUL-21 19:28:00 (CST-6)
Location: SUPERIOR
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Multiple reports of trees down were received from around Superior.

Thunderstorm Wind in DOUGLAS, WISCONSIN
From 26-JUL-21 20:03:00 to 26-JUL-21 20:05:00 (CST-6)
Location: GORDON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A photo was received of a downed tree in Gordon.

Thunderstorm Wind in IRON, WISCONSIN
From 26-JUL-21 21:03:00 to 26-JUL-21 21:05:00 (CST-6)
Location: MERCER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Multiple trees were reported down in the Town of Mercer and the local fire department was dispatched to several locations around town following the storm.

Thunderstorm Wind in BAYFIELD, WISCONSIN
From 26-JUL-21 23:06:00 to 26-JUL-21 23:08:00 (CST-6)
Location: PORT WING
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Multiple trees were reported down in Port Wing.

Hail in DOUGLAS, WISCONSIN
From 26-JUL-21 21:57:00 to 26-JUL-21 21:58:00 (CST-6)
Location: ITASCA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DOUGLAS, WISCONSIN
From 26-JUL-21 22:00:00 to 26-JUL-21 22:02:00 (CST-6)
Location: POPLAR
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DOUGLAS, WISCONSIN
From 26-JUL-21 22:00:00 to 26-JUL-21 22:02:00 (CST-6)
Location: MAPLE
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Hail in DOUGLAS, WISCONSIN
From 26-JUL-21 22:00:00 to 26-JUL-21 22:02:00 (CST-6)
Location: SUPERIOR
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DOUGLAS, WISCONSIN
From 26-JUL-21 22:10:00 to 26-JUL-21 22:12:00 (CST-6)
Location: WENTWORTH
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DOUGLAS, WISCONSIN
From 26-JUL-21 22:20:00 to 26-JUL-21 22:22:00 (CST-6)
Location: MAPLE
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BAYFIELD, WISCONSIN
From 26-JUL-21 22:55:00 to 26-JUL-21 22:57:00 (CST-6)
Location: NAMEKAGON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in BAYFIELD, WISCONSIN
From 26-JUL-21 23:00:00 to 26-JUL-21 23:02:00 (CST-6)
Location: NAMEKAGON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

An 8-inch diameter tree was downed near Namekagon.

Thunderstorm Wind in BAYFIELD, WISCONSIN
From 26-JUL-21 23:30:00 to 26-JUL-21 23:32:00 (CST-6)
Location: NAMEKAGON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees were downed onto power lines near Namekagon causing power outages.

Hail in SAWYER, WISCONSIN
From 27-JUL-21 00:09:00 to 27-JUL-21 00:11:00 (CST-6)
Location: HAYWARD
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in SAWYER, WISCONSIN
From 27-JUL-21 00:31:00 to 27-JUL-21 00:33:00 (CST-6)
Location: WINTER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A few smaller trees were downed along with the top of a larger tree near Winter.