A well-organized line of strong to severe thunderstorms developed early afternoon on Tuesday, September 7th, along and ahead of an advancing cold front. The  majority of the damage was observed north of I-69 in cities such as Midland and Saginaw, where extensive tree damage, power outages, and 1 hail were observed; however, less widespread reports were received south of the I-69 corridor. The line of storms farther south was followed by a swath of high winds, where sustained winds (not associated with thunderstorms) were observed to be 40-50 mph, with gusts up to 60 mph. Between the severe thunderstorms and high winds, approximately 150,000 customers lost power.

Hail in MIDLAND, MICHIGAN
From 07-SEP-21 14:18:00 to 07-SEP-21 14:18:00 (EST-5)
Location: MIDLAND BARSTOW ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in MIDLAND, MICHIGAN
From 07-SEP-21 14:31:00 to 07-SEP-21 14:31:00 (EST-5)
Location: MIDLAND
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in MIDLAND, MICHIGAN
From 07-SEP-21 14:15:00 to 07-SEP-21 14:15:00 (EST-5)
Location: LARKIN
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Numerous trees and power lines reported down in Larkin Township.

Thunderstorm Wind in MIDLAND, MICHIGAN
From 07-SEP-21 14:31:00 to 07-SEP-21 14:31:00 (EST-5)
Location: MIDLAND BARSTOW ARPT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several large tree branches observed down.

Thunderstorm Wind in BAY, MICHIGAN
From 07-SEP-21 14:32:00 to 07-SEP-21 14:32:00 (EST-5)
Location: LINWOOD
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A few large trees reported down in the Linwood area.

Thunderstorm Wind in BAY, MICHIGAN
From 07-SEP-21 14:45:00 to 07-SEP-21 14:45:00 (EST-5)
Location: ESSEXVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Six to eight inch diameter tree limbs reported down.

Thunderstorm Wind in HURON, MICHIGAN
From 07-SEP-21 15:20:00 to 07-SEP-21 15:20:00 (EST-5)
Location: RESCUE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Several trees and power lines reported down in Owendale and Ivanhoe.

Thunderstorm Wind in TUSCOLA, MICHIGAN
From 07-SEP-21 16:15:00 to 07-SEP-21 16:15:00 (EST-5)
Location: VASSAR
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees reported down in Vassar.

Thunderstorm Wind in SAGINAW, MICHIGAN
From 07-SEP-21 16:32:00 to 07-SEP-21 16:32:00 (EST-5)
Location: MERSHON
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large trees uprooted and downed, as well as several large tree limbs down.

Thunderstorm Wind in LENAWEE, MICHIGAN
From 07-SEP-21 19:04:00 to 07-SEP-21 19:04:00 (EST-5)
Location: ROLLIN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Large tree branches and power lines reported down in Addison and Hudson.

Thunderstorm Wind in SAGINAW, MICHIGAN
From 07-SEP-21 14:48:00 to 07-SEP-21 14:48:00 (EST-5)
Location: (MBS)TRI CITY APT SA
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Measured at Saginaw International Airport.

Thunderstorm Wind in SAGINAW, MICHIGAN
From 07-SEP-21 16:00:00 to 07-SEP-21 16:00:00 (EST-5)
Location: FORDNEY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter estimated 60 mph thunderstorm winds.

High Wind in OAKLAND, MICHIGAN
From 07-SEP-21 19:45:00 to 07-SEP-21 21:45:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Utility Company

Scattered powered outages from downed tree limbs and wires. A fire station mesonet in West Bloomfield measured a 54 mph wind gust.

High Wind in MACOMB, MICHIGAN
From 07-SEP-21 20:15:00 to 07-SEP-21 21:15:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Utility Company

Scattered powered outages from downed tree limbs and wires.  A 56 mph wind gust was observed at the Lake St. Clair Metropark.

High Wind in ST. CLAIR, MICHIGAN
From 07-SEP-21 20:15:00 to 07-SEP-21 21:15:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Utility Company

Scattered powered outages from downed tree limbs and wires.

High Wind in LIVINGSTON, MICHIGAN
From 07-SEP-21 19:30:00 to 07-SEP-21 20:30:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Utility Company

Scattered powered outages from downed tree limbs and wires.

Thunderstorm Wind in HURON, MICHIGAN
From 07-SEP-21 14:29:00 to 07-SEP-21 14:29:00 (EST-5)
Location: CASEVILLE
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet