Severe thunderstorms, mainly south of the M-59 corridor (and especially south of I-94) began during the evening hours of June 20, 2021 and extending into the early morning hours of June 21, 2021. Numerous reports of wind damage were received, with multiple trees down in the hardest hit areas of Lenawee, Monroe, Wayne, and portions of Oakland counties. The damaging winds of 60+ mph, resulted in at least 60,000 customers losing power across portions of southeast Michigan. The severe thunderstorms occurred south of a stationary boundary draped near the I-94 corridor, with a moist and unstable boundary to the south of it across far southern Lower Michigan into the northern Ohio Valley.
In addition to the numerous wind reports, the first tornado of 2021 occurred in Riga Township, located in far southeast Lenawee county. This was the first tornado in southeast Michigan since September 2019 in Sanilac county. The Riga tornado was rated EF-1 with estimated peak winds of 90 mph and a path length just shy of 3 miles.  The tornado was the first in Lenawee county since an EF-1 tornado that occurred northwest of Adrian back on June 6, 2010.

Thunderstorm Wind in MONROE, MICHIGAN
From 20-JUN-21 20:19:00 to 20-JUN-21 20:19:00 (EST-5)
Location: LULU
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Multiple trees reported down.

Tornado in LENAWEE, MICHIGAN
From 20-JUN-21 20:23:00 to 20-JUN-21 20:27:00 (EST-5)
Location: RIGA
Tornado F-scale: EF1
Property damage: 250.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado touched down south of Cemetery Rd and east of Silberhorn Hwy heading east-northeast. The tornado damaged at least five homes, four outbuildings, three barns, and numerous trees. Damage included a mix of uprooted trees, snapped large limbs, roof loss, collapsed barn walls, fallen power poles, a toppled chimney, blown out fencing, and an overturned air conditioner unit. Large sections of sheet metal from a destroyed small sheet metal silo were also lofted over a quarter mile downstream. The tornado inflicted damage on a final metal barn roof
as it neared the Lenawee/Monroe county line then lifted prior to
Rodesiler Hwy between Simpson and Stadler Rd. Estimated peak winds was 90 mph.

Thunderstorm Wind in MONROE, MICHIGAN
From 20-JUN-21 20:26:00 to 20-JUN-21 20:26:00 (EST-5)
Location: LULU
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Multiple trees reported down.

Thunderstorm Wind in MONROE, MICHIGAN
From 20-JUN-21 20:40:00 to 20-JUN-21 20:40:00 (EST-5)
Location: AZALIA
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Multiple trees reported down.

Thunderstorm Wind in LIVINGSTON, MICHIGAN
From 20-JUN-21 21:01:00 to 20-JUN-21 21:01:00 (EST-5)
Location: PINCKNEY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree reported down on the road.

Thunderstorm Wind in MONROE, MICHIGAN
From 21-JUN-21 03:11:00 to 21-JUN-21 03:11:00 (EST-5)
Location: DUNDEE
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Multiple trees and powerlines reported down.

Thunderstorm Wind in MONROE, MICHIGAN
From 21-JUN-21 03:21:00 to 21-JUN-21 03:21:00 (EST-5)
Location: MONROE CUSTER ARPT
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Multiple trees reported down.

Thunderstorm Wind in MONROE, MICHIGAN
From 21-JUN-21 03:22:00 to 21-JUN-21 03:22:00 (EST-5)
Location: MONROE
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Multiple trees reported down.

Thunderstorm Wind in LENAWEE, MICHIGAN
From 20-JUN-21 20:18:00 to 20-JUN-21 20:18:00 (EST-5)
Location: CLAYTON
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Trees reported down.

Thunderstorm Wind in LIVINGSTON, MICHIGAN
From 20-JUN-21 20:52:00 to 20-JUN-21 20:52:00 (EST-5)
Location: GREGORY ARPT
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Large tree reported blown down.

Thunderstorm Wind in LIVINGSTON, MICHIGAN
From 20-JUN-21 20:52:00 to 20-JUN-21 20:52:00 (EST-5)
Location: ANDERSON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree reported down.

Thunderstorm Wind in LIVINGSTON, MICHIGAN
From 20-JUN-21 21:05:00 to 20-JUN-21 21:05:00 (EST-5)
Location: HOWELL
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Trees reported down over the powerlines.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 20-JUN-21 21:42:00 to 20-JUN-21 21:42:00 (EST-5)
Location: BIRMINGHAM GRAND PRI
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Large tree limb reported down on the road.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 20-JUN-21 21:44:00 to 20-JUN-21 21:44:00 (EST-5)
Location: SYLVAN LAKE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Two foot diameter tree limb reported down on the road.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 20-JUN-21 21:28:00 to 20-JUN-21 21:28:00 (EST-5)
Location: NOVI
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several 1 to 4 inch in diameter tree limbs reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 20-JUN-21 21:39:00 to 20-JUN-21 21:39:00 (EST-5)
Location: OAKLEY PARK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A 7 inch diameter tree was reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 20-JUN-21 21:49:00 to 20-JUN-21 21:49:00 (EST-5)
Location: WINDIATE PARK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A couple 4 inch diameter tree limbs reported down.

Thunderstorm Wind in WAYNE, MICHIGAN
From 20-JUN-21 20:41:00 to 20-JUN-21 20:41:00 (EST-5)
Location: DETROIT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A tree was reported blown down on the road.

Thunderstorm Wind in WAYNE, MICHIGAN
From 20-JUN-21 20:19:00 to 20-JUN-21 20:19:00 (EST-5)
Location: RIVERVIEW
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A large tree was snapped from the wind.