A cold front moving across a moist and unstable airmass generated severe thunderstorms over mainly the west half of Upper Michigan during the evening of the 27th.

Thunderstorm Wind in ONTONAGON, MICHIGAN
From 27-JUL-23 18:19:00 to 27-JUL-23 18:25:00 (EST-5)
Location: EWEN
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

The Ontonagon County Dispatch reported a few trees of unknown size down on power lines in Ewen.

Thunderstorm Wind in MARQUETTE, MICHIGAN
From 27-JUL-23 19:54:00 to 27-JUL-23 20:00:00 (EST-5)
Location: TROWBRIDGE PARK
Magnitude: 55.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: 911 Call Center

The Marquette County Central Dispatch reported trees and power lines downed on Wilkinson Street on the north side of Marquette.

Thunderstorm Wind in MARQUETTE, MICHIGAN
From 27-JUL-23 19:54:00 to 27-JUL-23 20:00:00 (EST-5)
Location: MARQUETTE
Magnitude: 55.00 EG
Property damage: 7.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Marquette County Central Dispatch reported a downed tree on a vehicle on Altamont Street in Marquette.

Thunderstorm Wind in MARQUETTE, MICHIGAN
From 27-JUL-23 19:56:00 to 27-JUL-23 20:03:00 (EST-5)
Location: HARVEY
Magnitude: 55.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Marquette County Central Dispatch reported trees and power lines downed along Reservoir Street and Quarry Road in Harvey.

Thunderstorm Wind in GOGEBIC, MICHIGAN
From 27-JUL-23 16:52:00 to 27-JUL-23 17:00:00 (CST-6)
Location: BESSEMER
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

The Gogebic County Dispatch reported power lines down in Bessemer.  Wind gusts at the Ironwood ASOS were measured at 50 mph, but were probably higher in Bessemer where wind damage occurred.

Thunderstorm Wind in MARQUETTE, MICHIGAN
From 27-JUL-23 19:54:00 to 27-JUL-23 20:00:00 (EST-5)
Location: EAGLE MILLS
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

The Marquette County Central Dispatch reported a tree down on power lines off Midway Drive in Negaunee Township.  The max wind gust at NWS Marquette was 47 mph just a few minutes prior to this damage report.

Thunderstorm Wind in ONTONAGON, MICHIGAN
From 27-JUL-23 18:19:00 to 27-JUL-23 18:25:00 (EST-5)
Location: EWEN
Magnitude: 55.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Social Media

There was a picture posted on social media of a large tree and power line down across a road in Ewen.

Thunderstorm Wind in MARQUETTE, MICHIGAN
From 27-JUL-23 19:45:00 to 27-JUL-23 19:50:00 (EST-5)
Location: GREENWOOD
Magnitude: 43.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: NWS Employee

A large diameter maple tree was observed snapped off around five feet above the trunk in Tilden Township along Marquette County Road 581. A section of the tree landed in the driveway of a NWS Employee.  The time of the delayed report was estimated from radar.  Winds were estimated around 50 mph.

Thunderstorm Wind in MARQUETTE, MICHIGAN
From 27-JUL-23 20:10:00 to 27-JUL-23 20:15:00 (EST-5)
Location: MARQUETTE
Magnitude: 43.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Public

There was a delayed public report of a large maple tree limb downed in south Marquette.  Winds were estimated between 40 and 50 mph.

Thunderstorm Wind in GOGEBIC, MICHIGAN
From 27-JUL-23 18:15:00 to 27-JUL-23 18:25:00 (CST-6)
Location: INDIAN VLG
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

The U.S. Forest Service reported multiple trees and large branches downed of maple and fir trees along Crystal Lake Road and Birch Lake Road in eastern Gogebic County just north of the Wisconsin State line.  The delayed report was estimated from radar.  Winds were estimated between 50 and 70 mph.

Thunderstorm Wind in GOGEBIC, MICHIGAN
From 27-JUL-23 17:50:00 to 27-JUL-23 18:00:00 (CST-6)
Location: BEATON
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

The U.S. Forest Service reported a wide variety of scattered multiple trees and large branches down throughout the Sylvania Wilderness Area in eastern Gogebic County during an onsite survey by USFS personnel in the Ottawa National Forest.  The time of the delayed report was based on radar.  Estimated wind gusts were between 50 and 70 mph.

Thunderstorm Wind in DELTA, MICHIGAN
From 27-JUL-23 21:00:00 to 27-JUL-23 21:05:00 (EST-5)
Location: HYDE
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Social Media

Report from social media included description of damage and posted image.  Observer stated that he came home and found large storage shed/carport thrown and wrapped around trees.  The frame of the shed was destroyed and it was anchored down.  Not much damage elsewhere aside from some downed tree limbs.  Time of the report was estimated from radar.

Thunderstorm Wind in HOUGHTON, MICHIGAN
From 27-JUL-23 18:42:00 to 27-JUL-23 18:48:00 (EST-5)
Location: SIDNAW GROOMS ARPT
Magnitude: 56.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: NWS Employee

Three large maple trees were observed down in Sidnaw.

Thunderstorm Wind in MARQUETTE, MICHIGAN
From 27-JUL-23 20:12:00 to 27-JUL-23 20:18:00 (EST-5)
Location: MARQUETTE
Magnitude: 56.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Social Media

Social media report from south Marquette of three trees down in very close proximity to each other, all blocking the driveway.

Thunderstorm Wind in MARQUETTE, MICHIGAN
From 27-JUL-23 20:15:00 to 27-JUL-23 20:20:00 (EST-5)
Location: SAND RIVER
Magnitude: 52.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Social Media

There was a social media report and picture of a downed tree at Shot Point.

Thunderstorm Wind in MARQUETTE, MICHIGAN
From 27-JUL-23 19:45:00 to 27-JUL-23 19:55:00 (EST-5)
Location: GWINN
Magnitude: 56.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Social Media

A social media report of a pavilion blown over and a large spruce tree snapped.  Time of the report was estimated from radar.