Warm and humid conditions developed across northeastern Minnesota on the 27th ahead of a frontal boundary that stalled out across the region. Storms were primarily hail producers across northeastern Minnesota but transitioned to more of a wind threat as they grew upscale across northwestern Wisconsin. Numerous reports of trees and powerlines downed were received across the area with some flash flooding occurring later in the afternoon as well in areas that saw multiple rounds of storms.

Hail in DOUGLAS, WISCONSIN
From 27-JUL-23 15:30:00 to 27-JUL-23 15:32:00 (CST-6)
Location: LAKE NEBAGAMON ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DOUGLAS, WISCONSIN
From 27-JUL-23 14:59:00 to 27-JUL-23 15:01:00 (CST-6)
Location: GORDON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in SAWYER, WISCONSIN
From 27-JUL-23 16:20:00 to 27-JUL-23 16:22:00 (CST-6)
Location: MOOSE LAKE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Several medium to large trees were down blocking an entrance to Black Lake Campground.

Flash Flood in BURNETT, WISCONSIN
From 27-JUL-23 19:00:00 to 27-JUL-23 20:00:00 (CST-6)
Location: SIREN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Up to a quarter of a mile of Highway 35 through Siren was covered with 6 to 10 inches of water.

Hail in BURNETT, WISCONSIN
From 27-JUL-23 14:47:00 to 27-JUL-23 14:49:00 (CST-6)
Location: RIVERSIDE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in SAWYER, WISCONSIN
From 27-JUL-23 16:05:00 to 27-JUL-23 16:07:00 (CST-6)
Location: MOOSE LAKE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A 10-inch diameter aspen tree was snapped off about 6 feet off the ground.

Thunderstorm Wind in SAWYER, WISCONSIN
From 27-JUL-23 15:34:00 to 27-JUL-23 15:36:00 (CST-6)
Location: MOOSE LAKE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees were down along Brandt Road making the road impassible.

Thunderstorm Wind in BAYFIELD, WISCONSIN
From 27-JUL-23 15:30:00 to 27-JUL-23 15:32:00 (CST-6)
Location: BENOIT
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Multiple trees were down, uprooted or snapped at the base.

Thunderstorm Wind in SAWYER, WISCONSIN
From 27-JUL-23 15:50:00 to 27-JUL-23 15:52:00 (CST-6)
Location: MOOSE LAKE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Multiple trees around a foot in diameter or less were down along Highway 77 between County Highway OO and Forest Road 204.

Thunderstorm Wind in SAWYER, WISCONSIN
From 27-JUL-23 15:55:00 to 27-JUL-23 15:58:00 (CST-6)
Location: MOOSE LAKE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

An 8-inch diameter 40-foot tall spruce tree was snapped at the base.

Thunderstorm Wind in BAYFIELD, WISCONSIN
From 27-JUL-23 15:10:00 to 27-JUL-23 15:12:00 (CST-6)
Location: DRUMMOND
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were down onto power lines along County Road N near Drummond.

Thunderstorm Wind in SAWYER, WISCONSIN
From 27-JUL-23 16:30:00 to 27-JUL-23 16:32:00 (CST-6)
Location: LORETTA
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several medium to large poplar trees were snapped about 10 feet off the ground.

Thunderstorm Wind in SAWYER, WISCONSIN
From 27-JUL-23 15:30:00 to 27-JUL-23 15:32:00 (CST-6)
Location: SEELEY
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A roof was partially ripped off by the winds.

Thunderstorm Wind in BAYFIELD, WISCONSIN
From 27-JUL-23 15:44:00 to 27-JUL-23 15:46:00 (CST-6)
Location: WASHBURN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were down onto the roadway.

Thunderstorm Wind in BAYFIELD, WISCONSIN
From 27-JUL-23 15:55:00 to 27-JUL-23 15:57:00 (CST-6)
Location: WASHBURN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were down along Lakeshore Drive.

Flash Flood in BAYFIELD, WISCONSIN
From 27-JUL-23 18:00:00 to 27-JUL-23 19:00:00 (CST-6)
Location: CABLE UNION ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Heavy rain in excess of 4 inches lead to several inches of gravel and dirt washing over the Birkie rollerski track along with washouts along the side of the path up to a foot deep in the dirt along with smaller chunks of pavement removed as well.

Flash Flood in SAWYER, WISCONSIN
From 27-JUL-23 18:00:00 to 27-JUL-23 19:00:00 (CST-6)
Location: SEELEY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Several medium to large washouts were reported across Boedecker Road.

Thunderstorm Wind in WASHBURN, WISCONSIN
From 27-JUL-23 17:25:00 to 27-JUL-23 17:27:00 (CST-6)
Location: SHELL LAKE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were reported down in several areas in Shell Lake across roadways.

Flash Flood in SAWYER, WISCONSIN
From 27-JUL-23 18:00:00 to 27-JUL-23 19:00:00 (CST-6)
Location: SEELEY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Running water from the heavy rainfall led to gravel being washed across the pavement on Highway OO along with the ditch becoming eroded.

Thunderstorm Wind in SAWYER, WISCONSIN
From 27-JUL-23 15:21:00 to 27-JUL-23 15:24:00 (CST-6)
Location: SEELEY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Numerous small branches along with a few wrist-sized or larger branches down.

Thunderstorm Wind in SAWYER, WISCONSIN
From 27-JUL-23 16:05:00 to 27-JUL-23 16:07:00 (CST-6)
Location: LAKE CHIPPEWA
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Multiple trees and large branches were down along County Road CC with some of the trees falling onto powerlines and causing fires.

Thunderstorm Wind in SAWYER, WISCONSIN
From 27-JUL-23 16:01:00 to 27-JUL-23 16:03:00 (CST-6)
Location: HAYWARD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

An aspen tree was snapped about halfway up.

Thunderstorm Wind in ASHLAND, WISCONSIN
From 27-JUL-23 16:06:00 to 27-JUL-23 16:08:00 (CST-6)
Location: ODANAH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Trees were down onto powerlines between the casino and Lake Road.

Thunderstorm Wind in PRICE, WISCONSIN
From 27-JUL-23 16:34:00 to 27-JUL-23 16:36:00 (CST-6)
Location: LYMANTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Multiple trees were down and a barn window was blown in.

Thunderstorm Wind in SAWYER, WISCONSIN
From 27-JUL-23 16:25:00 to 27-JUL-23 16:27:00 (CST-6)
Location: RADISSON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was down onto a power line leading to a fire.

Thunderstorm Wind in BAYFIELD, WISCONSIN
From 27-JUL-23 15:30:00 to 27-JUL-23 15:32:00 (CST-6)
Location: NAMEKAGON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were down onto the roadway.

Thunderstorm Wind in PRICE, WISCONSIN
From 27-JUL-23 17:23:00 to 27-JUL-23 17:25:00 (CST-6)
Location: CATAWBA
Magnitude: 50.00 EG
Property damage: 60.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A few trees were down across a road. Additionally, widespread tree and powerline damage was reported across the county from the storms.