Thunderstorms developed during the afternoon and evening hours of the 16th across northwest Wisconsin ahead of a cold front. Daytime heating led to strong instability over the region and a strong low level jet provided ample wind shear for storms to work with. With the cold front, the storms were generally linear in mode resulting in damaging winds being the primary threat as they moved to the east. Numerous reports of tree damage were received from across northwest Wisconsin into the evening hours along with a few hail reports. The largest hail report was half dollar-sized.

Hail in DOUGLAS, WISCONSIN
From 16-AUG-23 17:30:00 to 16-AUG-23 17:32:00 (CST-6)
Location: HINES
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BURNETT, WISCONSIN
From 16-AUG-23 19:15:00 to 16-AUG-23 19:17:00 (CST-6)
Location: YELLOW LAKE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in WASHBURN, WISCONSIN
From 16-AUG-23 19:48:00 to 16-AUG-23 19:50:00 (CST-6)
Location: SPOONER
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in DOUGLAS, WISCONSIN
From 16-AUG-23 17:36:00 to 16-AUG-23 17:38:00 (CST-6)
Location: SUNNYSIDE
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A 12 to 13 inch tree was snapped at the base by the storm.

Thunderstorm Wind in DOUGLAS, WISCONSIN
From 16-AUG-23 17:40:00 to 16-AUG-23 17:41:00 (CST-6)
Location: SUNNYSIDE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A report was received of a tree that had been uprooted or snapped.

Thunderstorm Wind in DOUGLAS, WISCONSIN
From 16-AUG-23 17:40:00 to 16-AUG-23 17:42:00 (CST-6)
Location: CLOVERLAND
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A photo was received showing multiple mature poplar trees that had been snapped 10 to 20 feet off the ground during the storm.

Thunderstorm Wind in ASHLAND, WISCONSIN
From 16-AUG-23 18:42:00 to 16-AUG-23 18:44:00 (CST-6)
Location: LA POINTE MADELINE I
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Numerous trees eight to 12 inches in diameter were down along with a power line on Madeline Island.

Thunderstorm Wind in DOUGLAS, WISCONSIN
From 16-AUG-23 17:36:00 to 16-AUG-23 17:38:00 (CST-6)
Location: CUTTER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A tree was downed onto a power line.

Thunderstorm Wind in SAWYER, WISCONSIN
From 16-AUG-23 19:41:00 to 16-AUG-23 19:43:00 (CST-6)
Location: THE NORTHWOODS BEACH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A tree was down across Highway K near Grindstone Lake.

Thunderstorm Wind in WASHBURN, WISCONSIN
From 16-AUG-23 19:36:00 to 16-AUG-23 19:38:00 (CST-6)
Location: EARL
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A tree was down blocking three quarters of the road on County Highway E near Earl.

Thunderstorm Wind in SAWYER, WISCONSIN
From 16-AUG-23 20:00:00 to 16-AUG-23 20:02:00 (CST-6)
Location: THE NORTHWOODS BEACH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was down across Post Avenue in Northwoods Beach.

Thunderstorm Wind in SAWYER, WISCONSIN
From 16-AUG-23 19:28:00 to 16-AUG-23 19:30:00 (CST-6)
Location: HAYWARD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Five small to medium trees were down along Greenwood Lane in Hayward.

Thunderstorm Wind in SAWYER, WISCONSIN
From 16-AUG-23 19:36:00 to 16-AUG-23 19:38:00 (CST-6)
Location: ROUND LAKE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was down partially across a road.

Thunderstorm Wind in SAWYER, WISCONSIN
From 16-AUG-23 19:36:00 to 16-AUG-23 19:38:00 (CST-6)
Location: GRINDSTONE LAKE
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A large dead pine tree was down across the road. A car had hit the tree and its bumper was left in the middle of the road.

Thunderstorm Wind in SAWYER, WISCONSIN
From 16-AUG-23 20:29:00 to 16-AUG-23 20:31:00 (CST-6)
Location: RESERVE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A tree branch was downed by the thunderstorm winds.

Thunderstorm Wind in DOUGLAS, WISCONSIN
From 16-AUG-23 17:30:00 to 16-AUG-23 17:32:00 (CST-6)
Location: SOUTH SUPERIOR
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Fence panels were broken by winds and then blown into a window during the storm.

Thunderstorm Wind in DOUGLAS, WISCONSIN
From 16-AUG-23 18:15:00 to 16-AUG-23 18:17:00 (CST-6)
Location: WAINO
Magnitude: 60.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Photos were received showing three large and healthy trees that were uprooted and possibly snapped. A trailer was also blown over onto its side.

Thunderstorm Wind in BURNETT, WISCONSIN
From 16-AUG-23 19:00:00 to 16-AUG-23 19:02:00 (CST-6)
Location: GASLYN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was down onto County Road H north of Highway 70 near Hertel.

Thunderstorm Wind in DOUGLAS, WISCONSIN
From 16-AUG-23 17:25:00 to 16-AUG-23 17:27:00 (CST-6)
Location: SOUTH SUPERIOR
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

Trees and fence panels were blown down.

Thunderstorm Wind in BAYFIELD, WISCONSIN
From 16-AUG-23 06:05:00 to 16-AUG-23 06:07:00 (CST-6)
Location: IRON RIVER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A large tree limb was blown down during the storm in Iron River.

Thunderstorm Wind in DOUGLAS, WISCONSIN
From 16-AUG-23 17:48:00 to 16-AUG-23 17:50:00 (CST-6)
Location: CLOVERLAND
Magnitude: 61.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

Multiple pine trees were uprooted with a 12 to 18 inch diameter pine tree broken about 25 feet off the ground. An empty hay wagon was overturned and some structural damage was reported as well at the location.

Thunderstorm Wind in BAYFIELD, WISCONSIN
From 16-AUG-23 17:56:00 to 16-AUG-23 17:58:00 (CST-6)
Location: PORT WING
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A bush was toppled and several tree branches were down.