A strong low pressure system tracked through northern Lower Michigan, swinging a strong cold front through southeast Michigan early in the afternoon. Sustained winds ranging between 30 - 40 mph, with frequent gusts in the 45 to 60 mph range, with scattered thunderstorms that developed leading to enhanced winds near 70 MPH. Downed large trees, branches, telephone and power lines were reported across all counties in Southeast Michigan, with around 230,000 customers without power during the peak. In Independence Township, a large tree fell onto a car, killing the 36 year old man inside. Additionally, a postal employee in South Lyon was also seriously hurt when a tree fell on him as well. A semi was also blown over in the strong winds on US 23, blocking all southbound lanes.

Thunderstorm Wind in MONROE, MICHIGAN
From 04-MAY-18 12:26:00 to 04-MAY-18 12:26:00 (EST-5)
Location: TEMPERANCE
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

A large tree was reported down.

High Wind in LAPEER, MICHIGAN
From 04-MAY-18 11:00:00 to 04-MAY-18 17:00:00 (EST-5)
Magnitude: 52.00 EG
Property damage: 1.00M
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in MONROE, MICHIGAN
From 04-MAY-18 11:00:00 to 04-MAY-18 17:00:00 (EST-5)
Magnitude: 70.00 EG
Property damage: 3.00M
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in ST. CLAIR, MICHIGAN
From 04-MAY-18 12:26:00 to 04-MAY-18 12:26:00 (EST-5)
Location: SMITHS CREEK
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees blown down blocking roadway.

Thunderstorm Wind in MONROE, MICHIGAN
From 04-MAY-18 12:32:00 to 04-MAY-18 12:32:00 (EST-5)
Location: MONROE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A 10 inch tree limb was reported down.

High Wind in LENAWEE, MICHIGAN
From 04-MAY-18 11:00:00 to 04-MAY-18 17:00:00 (EST-5)
Magnitude: 52.00 EG
Property damage: 1.50M
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in WASHTENAW, MICHIGAN
From 04-MAY-18 11:00:00 to 04-MAY-18 17:00:00 (EST-5)
Magnitude: 52.00 EG
Property damage: 4.00M
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in OAKLAND, MICHIGAN
From 04-MAY-18 12:09:00 to 04-MAY-18 12:09:00 (EST-5)
Location: STONY CREEK
Magnitude: 59.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple large trees blown down.

Thunderstorm Wind in WAYNE, MICHIGAN
From 04-MAY-18 12:15:00 to 04-MAY-18 12:15:00 (EST-5)
Location: HIGHLAND PARK
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees reported down.

High Wind in OAKLAND, MICHIGAN
From 04-MAY-18 11:00:00 to 04-MAY-18 17:00:00 (EST-5)
Magnitude: 52.00 EG
Property damage: 5.00M
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in MONROE, MICHIGAN
From 04-MAY-18 12:34:00 to 04-MAY-18 12:34:00 (EST-5)
Location: VIENNA
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple trees and power poles blown down. Railroad crossing bars snapped off.

Thunderstorm Wind in OAKLAND, MICHIGAN
From 04-MAY-18 12:14:00 to 04-MAY-18 12:14:00 (EST-5)
Location: CLAWSON
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Roofing material blown off a Michaels Craft store.

High Wind in LIVINGSTON, MICHIGAN
From 04-MAY-18 11:00:00 to 04-MAY-18 17:00:00 (EST-5)
Magnitude: 52.00 EG
Property damage: 2.00M
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in WAYNE, MICHIGAN
From 04-MAY-18 12:15:00 to 04-MAY-18 12:15:00 (EST-5)
Location: TAYLOR CENTER
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Downed power pole.

High Wind in MACOMB, MICHIGAN
From 04-MAY-18 11:00:00 to 04-MAY-18 17:00:00 (EST-5)
Magnitude: 61.00 EG
Property damage: 4.00M
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in WAYNE, MICHIGAN
From 04-MAY-18 11:00:00 to 04-MAY-18 17:00:00 (EST-5)
Magnitude: 56.00 EG
Property damage: 3.50M
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in BAY, MICHIGAN
From 04-MAY-18 11:00:00 to 04-MAY-18 17:00:00 (EST-5)
Magnitude: 52.00 EG
Property damage: 1.25M
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in TUSCOLA, MICHIGAN
From 04-MAY-18 11:00:00 to 04-MAY-18 17:00:00 (EST-5)
Magnitude: 52.00 EG
Property damage: 850.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in HURON, MICHIGAN
From 04-MAY-18 11:00:00 to 04-MAY-18 17:00:00 (EST-5)
Magnitude: 61.00 EG
Property damage: 850.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in SANILAC, MICHIGAN
From 04-MAY-18 11:00:00 to 04-MAY-18 17:00:00 (EST-5)
Magnitude: 61.00 EG
Property damage: 850.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in SHIAWASSEE, MICHIGAN
From 04-MAY-18 11:00:00 to 04-MAY-18 17:00:00 (EST-5)
Magnitude: 52.00 EG
Property damage: 850.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in MACOMB, MICHIGAN
From 04-MAY-18 12:18:00 to 04-MAY-18 12:18:00 (EST-5)
Location: STERLING HGTS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A 10 inch diameter tree was reported down.

Thunderstorm Wind in WAYNE, MICHIGAN
From 04-MAY-18 12:20:00 to 04-MAY-18 12:20:00 (EST-5)
Location: LINCOLN PARK
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A large tree was uprooted and fell onto a house.

Thunderstorm Wind in ST. CLAIR, MICHIGAN
From 04-MAY-18 12:24:00 to 04-MAY-18 12:24:00 (EST-5)
Location: COLUMBUS
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees reported blown down.

High Wind in SAGINAW, MICHIGAN
From 04-MAY-18 11:00:00 to 04-MAY-18 17:00:00 (EST-5)
Magnitude: 52.00 EG
Property damage: 2.00M
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in MIDLAND, MICHIGAN
From 04-MAY-18 11:00:00 to 04-MAY-18 17:00:00 (EST-5)
Magnitude: 52.00 EG
Property damage: 1.00M
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in GENESEE, MICHIGAN
From 04-MAY-18 11:00:00 to 04-MAY-18 17:00:00 (EST-5)
Magnitude: 52.00 EG
Property damage: 3.50M
Crop damage: 0.00K
Reported by: Trained Spotter

High Wind in ST. CLAIR, MICHIGAN
From 04-MAY-18 11:00:00 to 04-MAY-18 17:00:00 (EST-5)
Magnitude: 61.00 EG
Property damage: 3.00M
Crop damage: 0.00K
Reported by: Trained Spotter