Building moisture and instability ahead of an advancing cold front generated severe thunderstorms over portions of west and south central Upper Michigan on the evening of the 25th.

Thunderstorm Wind in HOUGHTON, MICHIGAN
From 25-MAY-21 17:15:00 to 25-MAY-21 17:25:00 (EST-5)
Location: PILGRAM
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The Houghton County Sheriff reported trees down blocking Highway US-41 near the Portage Lake Golf Course.  Additional trees were reported down in the Houghton area.  Time of the report estimated from radar.

Thunderstorm Wind in HOUGHTON, MICHIGAN
From 25-MAY-21 17:18:00 to 25-MAY-21 17:23:00 (EST-5)
Location: HOUGHTON ARPT
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm wind gust of 60 mph measured by the Houghton County Airport ASOS.

Thunderstorm Wind in HOUGHTON, MICHIGAN
From 25-MAY-21 17:20:00 to 25-MAY-21 17:25:00 (EST-5)
Location: KEARSARGE
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

A caller near Kearsarge reported a roadside stand strapped to the ground was blown over by a strong thunderstorm wind gust.

Thunderstorm Wind in ONTONAGON, MICHIGAN
From 25-MAY-21 17:55:00 to 25-MAY-21 18:00:00 (EST-5)
Location: MASS
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Delayed report of tree down on powerline.

Thunderstorm Wind in DICKINSON, MICHIGAN
From 25-MAY-21 18:30:00 to 25-MAY-21 18:40:00 (CST-6)
Location: ANTOINE
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Social Media

Report via social media of several trees down throughout Iron Mountain.

Thunderstorm Wind in DELTA, MICHIGAN
From 25-MAY-21 20:20:00 to 25-MAY-21 20:25:00 (EST-5)
Location: BARK RIVER
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The spotter near Bark River measured thunderstorm wind gusts at 58 mph, although estimated gusts were likely much higher.

Thunderstorm Wind in DELTA, MICHIGAN
From 25-MAY-21 20:23:00 to 25-MAY-21 20:28:00 (EST-5)
Location: NARENTA
Magnitude: 52.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Law Enforcement

The Delta County Sheriff reported a tree blocking the road just east of Bark River.  The time of the report was estimated from radar.

Thunderstorm Wind in MENOMINEE, MICHIGAN
From 25-MAY-21 19:25:00 to 25-MAY-21 19:30:00 (CST-6)
Location: HARRIS
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported a tree down on power lines in Gourley Township.

Thunderstorm Wind in MENOMINEE, MICHIGAN
From 25-MAY-21 19:25:00 to 25-MAY-21 19:30:00 (CST-6)
Location: NADEAU
Magnitude: 56.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported a tree and a power line down across the intersection of Highway US-41 and Menard Street in Nadeau.  US-41 was closed to remove debris.

Thunderstorm Wind in MENOMINEE, MICHIGAN
From 25-MAY-21 19:25:00 to 25-MAY-21 19:30:00 (CST-6)
Location: STEPHENSON
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported a tree down on a power line near the intersection of Division and Willow Streets in Stephenson.

Thunderstorm Wind in MENOMINEE, MICHIGAN
From 25-MAY-21 19:30:00 to 25-MAY-21 19:40:00 (CST-6)
Location: KEW
Magnitude: 56.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported trees down over power lines just north of the city of Menominee.

Thunderstorm Wind in DELTA, MICHIGAN
From 25-MAY-21 20:30:00 to 25-MAY-21 20:35:00 (EST-5)
Location: PINE RIDGE
Magnitude: 52.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Law Enforcement

The Delta County Sheriff reported a tree down about a mile west of Escanaba.

Thunderstorm Wind in DELTA, MICHIGAN
From 25-MAY-21 20:30:00 to 25-MAY-21 20:35:00 (EST-5)
Location: NORTH ESCANABA
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Part of a roof blew off a building in Escanaba and debris was blocking a road.  The time of the report was estimated from radar.

Thunderstorm Wind in DELTA, MICHIGAN
From 25-MAY-21 20:30:00 to 25-MAY-21 20:35:00 (EST-5)
Location: ESCANABA
Magnitude: 52.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The Delta County Sheriff reported a tree down on a truck in Escanaba.  Time of the report was estimated from radar.

Thunderstorm Wind in DELTA, MICHIGAN
From 25-MAY-21 20:30:00 to 25-MAY-21 20:35:00 (EST-5)
Location: TESCH
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Tree down blocking a road a mile southeast of Tesch.  Time of the report was estimated from radar.

Thunderstorm Wind in DELTA, MICHIGAN
From 25-MAY-21 20:30:00 to 25-MAY-21 20:35:00 (EST-5)
Location: LARCH
Magnitude: 52.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was reported down two miles north of Escanaba.  The time of the report was estimated from radar.

Thunderstorm Wind in DELTA, MICHIGAN
From 25-MAY-21 20:30:00 to 25-MAY-21 20:35:00 (EST-5)
Location: ESCANABA
Magnitude: 56.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Utility Company

The UPPCO map showed widespread power outages across the western half of Delta County due to strong thunderstorm winds.  More than 2000 customers were without power, most concentrated in Escanaba.  The time of the report was estimated from radar.