After several days of record warmth, a strong cold front moved through eastern Michigan during the afternoon of the 10th. Due to some dry air situated below the bases of the storm clouds, evaporational cooling increased the downdraft strength of many of the thunderstorms. This caused some of the storms to produce very strong wind gusts, some of which caused damage. Hundreds of power outages were blamed on these thunderstorms. The more widespread outages in eastern Michigan occurred across portions of Shiawassee, Huron and Livingston counties.

Thunderstorm Wind in LIVINGSTON, MICHIGAN
From 10-SEP-02 16:00:00 to 10-SEP-02 16:00:00 (EST)
Location: FOWLERVILLE
Magnitude: 50 E
Reported by: TRAINED SPOTTER

Spotters reported that several large trees were blown down in thunderstorm winds.

Thunderstorm Wind in LIVINGSTON, MICHIGAN
From 10-SEP-02 16:15:00 to 10-SEP-02 16:15:00 (EST)
Location: HOWELL
Magnitude: 50 E
Reported by: LAW ENFORCEMENT

Livington County Central Dispatch reported that several large trees were blown down in thunderstorm winds.

Thunderstorm Wind in SHIAWASSEE, MICHIGAN
From 10-SEP-02 16:15:00 to 10-SEP-02 16:15:00 (EST)
Location: PERRY
Magnitude: 55 E
Reported by: TRAINED SPOTTER

Spotters reported that three large trees were blown down.

Thunderstorm Wind in ST. CLAIR, MICHIGAN
From 10-SEP-02 17:00:00 to 10-SEP-02 17:00:00 (EST)
Location: CAPAC
Magnitude: 52 E
Reported by: TRAINED SPOTTER

A trained spotter estimated 60 MPH thunderstorm winds.

Lightning in SHIAWASSEE, MICHIGAN
From 10-SEP-02 16:15:00 to 10-SEP-02 16:15:00 (EST)
Location: MORRICE
Property damage: 75K
Reported by: BROADCAST MEDIA

Ligthning struck a barn and set it on fire. The barn was heavily damaged.

Thunderstorm Wind in LAPEER, MICHIGAN
From 10-SEP-02 16:15:00 to 10-SEP-02 16:15:00 (EST)
Location: LAPEER
Magnitude: 50 E
Reported by: NWS EMPLOYEE(OFF DUTY)

An off duty NWS employee reported several large trees and tree branches blown down in thunderstorm winds.

Thunderstorm Wind in WASHTENAW, MICHIGAN
From 10-SEP-02 17:20:00 to 10-SEP-02 17:20:00 (EST)
Location: CHELSEA
Magnitude: 50 E
Reported by: TRAINED SPOTTER

Spotters reported that three large trees were blown down onto power lines.

Thunderstorm Wind in ST. CLAIR, MICHIGAN
From 10-SEP-02 19:00:00 to 10-SEP-02 19:00:00 (EST)
Location: YALE
Magnitude: 50 E
Reported by: LAW ENFORCEMENT

St Clair County Central Dispatch reported that power lines were blown down in thunderstorm winds.

Thunderstorm Wind in HURON, MICHIGAN
From 10-SEP-02 15:55:00 to 10-SEP-02 15:55:00 (EST)
Location: OWENDALE
Magnitude: 50 E
Property damage: 30K
Reported by: EMERGENCY MANAGER

Emergency management reported several trees and power lines blown onto the road in thunderstorm winds. The roof and west wall of a barn was also reportedly blown off in thunderstorm winds.

Thunderstorm Wind in HURON, MICHIGAN
From 10-SEP-02 15:35:00 to 10-SEP-02 15:35:00 (EST)
Location: BAY PORT
Magnitude: 55 E
Property damage: 20K
Reported by: TRAINED SPOTTER

A grain silo sustained some minor damage from thunderstorm winds. Some windows were also reported to have been blown out of a barn.

Thunderstorm Wind in ST. CLAIR, MICHIGAN
From 10-SEP-02 19:10:00 to 10-SEP-02 19:10:00 (EST)
Location: JEDDO
Magnitude: 50 E
Reported by: TRAINED SPOTTER

Trained spotters reported a large tree blown down in thunderstorm winds.

Thunderstorm Wind in SHIAWASSEE, MICHIGAN
From 10-SEP-02 16:15:00 to 10-SEP-02 16:15:00 (EST)
Location: MORRICE
Magnitude: 52 E
Property damage: 50K
Reported by: NEWSPAPER

A newspaper reported that several large trees and tree limbs were blown down in thunderstorm winds, some of which fell onto homes.

Thunderstorm Wind in HURON, MICHIGAN
From 10-SEP-02 15:30:00 to 10-SEP-02 15:30:00 (EST)
Location: PORT AUSTIN
Magnitude: 52 E
Property damage: 50K
Reported by: TRAINED SPOTTER

Storm spotters reported that a large tree was uprooted and blown onto a house in thunderstorms winds. The house sustained extensive damage.

Thunderstorm Wind in LIVINGSTON, MICHIGAN
From 10-SEP-02 16:30:00 to 10-SEP-02 16:30:00 (EST)
Location: BRIGHTON
Magnitude: 50 E
Reported by: LAW ENFORCEMENT

Law enforcement reported that numerous one foot diameter trees were blown down in Green Oak Township due to thunderstorm winds.

Thunderstorm Wind in SHIAWASSEE, MICHIGAN
From 10-SEP-02 15:57:00 to 10-SEP-02 15:57:00 (EST)
Location: LAINGSBURG
Magnitude: 52 E
Property damage: 15K
Reported by: LAW ENFORCEMENT

Trained spotters and broadcast media reported several large trees blown down, some of which blocked roadways. One tree limb landed on a house, while another house lost its chimney.