A cold front triggered several severe thunderstorms focused mostly along the M-59 Corridor.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 11-SEP-13 17:11:00 to 11-SEP-13 17:11:00 (EST-5)
Location: LAKEVILLE
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 11-SEP-13 17:15:00 to 11-SEP-13 17:15:00 (EST-5)
Location: PINCKNEY
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Trees reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 11-SEP-13 17:15:00 to 11-SEP-13 17:15:00 (EST-5)
Location: LAKEVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree was reported blown down.

Thunderstorm Wind in MACOMB, MICHIGAN
From 11-SEP-13 17:23:00 to 11-SEP-13 17:23:00 (EST-5)
Location: DISCO
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Twelve inch diameter tree limbs reported down.

Thunderstorm Wind in LIVINGSTON, MICHIGAN
From 11-SEP-13 17:30:00 to 11-SEP-13 17:30:00 (EST-5)
Location: HOWELL
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Trees reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 11-SEP-13 17:30:00 to 11-SEP-13 17:30:00 (EST-5)
Location: COMMERCE
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Trees and wires reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 11-SEP-13 17:30:00 to 11-SEP-13 17:30:00 (EST-5)
Location: OXBOW
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A 3 inch diameter tree was reported down.

Thunderstorm Wind in WAYNE, MICHIGAN
From 11-SEP-13 17:53:00 to 11-SEP-13 17:53:00 (EST-5)
Location: NORTHVILLE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees uprooted and large tree limbs reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 11-SEP-13 17:54:00 to 11-SEP-13 17:54:00 (EST-5)
Location: ROYAL OAK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A 10 inch diameter tree limb was reported down.

Thunderstorm Wind in WAYNE, MICHIGAN
From 11-SEP-13 17:55:00 to 11-SEP-13 17:55:00 (EST-5)
Location: NORTHVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Powerlines reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 11-SEP-13 18:00:00 to 11-SEP-13 18:00:00 (EST-5)
Location: FARMINGTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Billboard reported blown down.

Thunderstorm Wind in WAYNE, MICHIGAN
From 11-SEP-13 18:00:00 to 11-SEP-13 18:00:00 (EST-5)
Location: COVENTRY GARDENS
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees reported blown down, one onto a car. Trees also down on wires.

Thunderstorm Wind in WAYNE, MICHIGAN
From 11-SEP-13 18:24:00 to 11-SEP-13 18:24:00 (EST-5)
Location: SIBLEY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was reported blown down.

Hail in GENESEE, MICHIGAN
From 11-SEP-13 16:30:00 to 11-SEP-13 16:30:00 (EST-5)
Location: GRAND BLANC
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in GENESEE, MICHIGAN
From 11-SEP-13 16:30:00 to 11-SEP-13 16:30:00 (EST-5)
Location: GRAND BLANC
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A couple of 12 inch diameter trees were reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 11-SEP-13 17:05:00 to 11-SEP-13 17:05:00 (EST-5)
Location: HURON GARDENS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A utility pole was reported down.

Thunderstorm Wind in LIVINGSTON, MICHIGAN
From 11-SEP-13 17:05:00 to 11-SEP-13 17:05:00 (EST-5)
Location: PLAINFIELD
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Trees reported down.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 11-SEP-13 17:05:00 to 11-SEP-13 17:05:00 (EST-5)
Location: BUNNY RUN
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Trees reported down.

Thunderstorm Wind in ST. CLAIR, MICHIGAN
From 11-SEP-13 18:30:00 to 11-SEP-13 18:30:00 (EST-5)
Location: ALGONAC
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Trees and wires reported down, along with a tree branch blown onto a car.

Thunderstorm Wind in MACOMB, MICHIGAN
From 11-SEP-13 18:09:00 to 11-SEP-13 18:09:00 (EST-5)
Location: (MTC)MT CLEMENS/SELF
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS